{"id":6311,"date":"2025-12-03T11:57:28","date_gmt":"2025-12-03T03:57:28","guid":{"rendered":"https:\/\/ct.semitanker.com\/?p=6311"},"modified":"2025-12-03T12:03:37","modified_gmt":"2025-12-03T04:03:37","slug":"magnets-magnetism","status":"publish","type":"post","link":"https:\/\/ct.semitanker.com\/korea\/magnets-magnetism\/","title":{"rendered":"\uc790\uc11d\uacfc \uc790\uc131: \ud55c \ud3b8\uc758 \uac00\uc774\ub4dc\ub85c \uc54c\uc544\ubcf4\ub294 \ubaa8\ub4e0 \uac83"},"content":{"rendered":"<p class=\"wp-block-paragraph\">\uc790\uc11d\uacfc \uc790\uc131\uc758 \uc5ed\uc0ac, \uc790\uc131 \uc7ac\ub8cc, \uc790\uae30 \ud2b9\uc131, \uc790\uae30 \ubc30\ud5a5, \uc790\uadf9 \ub4f1 \uc790\uc11d\uacfc \uc790\uc131\uc5d0 \uad00\ud574 \uc790\uc8fc \ubb3b\ub294 \ub300\ubd80\ubd84\uc758 \uc9c8\ubb38\uc5d0 \ub300\ud55c \ub2f5\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc8fc\uc81c\uc758 \uae30\uc220\uc801 \uc138\ubd80 \uc0ac\ud56d\uc740 \ub2f9\uc0ac\uc758 <strong>Magnetics-101 \uc124\uacc4 \uac00\uc774\ub4dc\uc5d0\uc11c \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/strong><\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">\uc9c0\uae08 \uacac\uc801\uc744 \uc694\uccad\ud558\uac70\ub098 \uc804\ud654\ub85c \ubb38\uc758\ud558\uc5ec \ud2b9\uc218 \uc694\uad6c \uc0ac\ud56d\uc5d0 \uc5b4\ub5a4 \uc9c0\uc6d0\uc774 \uac00\ub2a5\ud55c\uc9c0 \ud655\uc778\ud574 \ubcf4\uc2ed\uc2dc\uc624. MagnetShop.com\uc5d0\uc11c\ub294 \ub124\uc624\ub514\ubbb4, \uc0ac\ub9c8\ub968 \ucf54\ubc1c\ud2b8, \uc54c\ub2c8\ucf54, \uc138\ub77c\ubbf9 \ubc0f \ud50c\ub809\uc2dc\ube14 \uc790\uc11d\ub3c4 \ub300\ub7c9\uc73c\ub85c \uc7ac\uace0 \ubcf4\uc720\ud558\uace0 \uc788\uc73c\uba70 \uc628\ub77c\uc778\uc73c\ub85c \uad6c\ub9e4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"1-0-a-brief-history\"><strong>1. \uc5ed\uc0ac<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/09\/Neodymium-Magnet4.webp\" alt=\"History of Magnets &amp; Magnetism\" class=\"wp-image-6225\" srcset=\"https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/09\/Neodymium-Magnet4.webp 800w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/09\/Neodymium-Magnet4-600x450.webp 600w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/09\/Neodymium-Magnet4-768x576.webp 768w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/09\/Neodymium-Magnet4-16x12.webp 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uace0\ub300 \uadf8\ub9ac\uc2a4\uc778\uacfc \uc911\uad6d\uc778\uc740 \uc77c\ubd80 \ud76c\uadc0\ud55c \ub3cc\uc774 \uc790\uc5f0\uc801\uc73c\ub85c \uc790\ud654\ub418\uc5b4 \uc788\ub2e4\ub294 \uc0ac\uc2e4\uc744 \uc54c\uac8c \ub418\uc5c8\uc73c\uba70, \uc774\ub97c \ucc9c\uc5f0 \uc790\uc11d\uc774\ub77c\uace0 \ubd88\ub800\uc2b5\ub2c8\ub2e4. \uc774 \ub3cc\uc740 \uc791\uc740 \uc1f3\uc870\uac01\uc744 \uc2e0\uae30\ud558\uac8c \ub04c\uc5b4\ub2f9\uacbc\uc73c\uba70, \ub048\uc5d0 \ub9e4\ub2ec\uac70\ub098 \ubb3c\uc5d0 \ub744\uc6cc \uc790\uc720\ub86d\uac8c \uc6c0\uc9c1\uc774\uac8c \ud558\uba74 \ud56d\uc0c1 \uac19\uc740 \ubc29\ud5a5\uc744 \uac00\ub9ac\ud0a8\ub2e4\ub294 \uc0ac\uc2e4\ub3c4 \ubc1c\uacac\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \ucd08\uae30 \ud56d\ud574\uc790\ub4e4\uc740 \ubc14\ub2e4\uc5d0\uc11c \uc774\ub3d9 \ubc29\ud5a5\uc744 \ud655\uc778\ud558\uae30 \uc704\ud574 \uc774\ub7ec\ud55c \uc790\uc11d\uc5d0 \uc758\uc874\ud588\uc73c\uba70, \uc790\uc11d\uc740 \uc6d0\uc2dc\uc801\uc778 \ub098\uce68\ubc18\uc73c\ub85c \uc0ac\uc6a9\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\uc11d\uc744 \ub73b\ud558\ub294 \uc601\uc5b4 \ub2e8\uc5b4 magnet\uc740 \ucd5c\ucd08\uc758 \ucc9c\uc5f0 \uc790\uc11d\uc774 \ucc44\uad74\ub41c \uacf3\uc73c\ub85c \uc54c\ub824\uc9c4 \uadf8\ub9ac\uc2a4 \ud14c\uc0b4\ub9ac\uc544 \uc9c0\ubc29\uc758 \ub9c8\uadf8\ub124\uc2dc\uc544(Magnesia)\uc5d0\uc11c \uc720\ub798\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\ub79c \uc138\uc6d4\uc5d0 \uac78\uccd0 \uc790\uc11d\uc740 \uc624\ub298\ub0a0\uc758 \uace0\uc131\ub2a5 \uc790\uc11d\uc73c\ub85c \ubc1c\uc804\ud588\uc2b5\ub2c8\ub2e4. \uc11c\ub85c \ub2e4\ub978 \uc7ac\ub8cc\ub85c \ud569\uae08\uc744 \ub9cc\ub4e4\uba74 \ucc9c\uc5f0 \uc790\uc11d \uc554\uc11d\uacfc \uc720\uc0ac\ud55c \ud6a8\uacfc\ub97c \uad6c\ud604\ud558\uace0 \uc790\uc131\uc744 \uac15\ud654\ud560 \uc218 \uc788\ub2e4\ub294 \uc0ac\uc2e4\uc774 \ubc1d\ud600\uc84c\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub7ec\ub098 \ucd5c\ucd08\uc758 \uc778\uacf5 \uc790\uc11d\uc740 18\uc138\uae30\uc5d0 \ubc1c\uba85\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \ub354 \uac15\ub825\ud55c \uc790\uc131 \ud569\uae08\uc758 \uac1c\ubc1c\uc740 1920\ub144\ub300\uc5d0 \uc54c\ub2c8\ucf54 \uc790\uc131 \ud569\uae08(\ub2c8\ucf08, \uc54c\ub8e8\ubbf8\ub284, \ucf54\ubc1c\ud2b8 \ud569\uae08)\uc774 \uac1c\ubc1c\ub418\uae30 \uc804\uae4c\uc9c0 \ub9e4\uc6b0 \ub354\ub514\uac8c \uc9c4\ud589\ub418\uc5c8\uc2b5\ub2c8\ub2e4. 1950\ub144\ub300\uc640 1970\ub144\ub300\uc5d0\ub294 \uac01\uac01 \ud398\ub77c\uc774\ud2b8 \uc790\uc11d\uacfc \ud76c\ud1a0\ub958 \uc790\uc11d\uc774 \ubc1c\uba85\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc774\ud6c4 \uc790\uc131\uc5d0 \uad00\ud55c \uacfc\ud559 \ubd84\uc57c\ub294 \uae09\uc18d\ud788 \ubc1c\uc804\ud588\uc73c\uba70, \uace0\uc131\ub2a5 \uc790\uc131 \uc7ac\ub8cc\uc758 \ub4f1\uc7a5\uc73c\ub85c \uc18c\ud615\uc774\uba74\uc11c \uac15\ub825\ud55c \uc7a5\uce58\ub97c \uad6c\ud604\ud560 \uc218 \uc788\uac8c \ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"2-0-the-basics\"><strong>2. \uc790\uc11d\uacfc \uc790\uc131\uc758 \uae30\ubcf8 \uc6d0\ub9ac<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-is-a-magnet\"><strong>\uc790\uc11d\uc774\ub780 \uc815\ud655\ud788 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/09\/Neodymium-Magnet7.webp\" alt=\"What is a magnet\" class=\"wp-image-6228\" srcset=\"https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/09\/Neodymium-Magnet7.webp 800w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/09\/Neodymium-Magnet7-600x450.webp 600w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/09\/Neodymium-Magnet7-768x576.webp 768w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/09\/Neodymium-Magnet7-16x12.webp 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\uc11d\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ucca0\uc774\ub098 \uac15\ucca0\uacfc \uac19\uc740 \uc790\uc131 \ubb3c\uc9c8\uc744 \uac15\ub825\ud55c \uc790\uae30\uc7a5\uc5d0 \ub193\uc544 \ub9cc\ub4ed\ub2c8\ub2e4. \uc774 \ubc29\ubc95\uc73c\ub85c \uc601\uad6c\uc790\uc11d, \uc77c\uc2dc \uc790\uc11d \ubc0f \uc804\uc790\uc11d\uc744 \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ucca0, \uac15\ucca0, \ub2c8\ucf08, \ucf54\ubc1c\ud2b8\ucc98\ub7fc \uc27d\uac8c \uc790\ud654\ub418\ub294 \uc7ac\ub8cc\uc758 \uc6d0\uc790\ub294 \ub3c4\uba54\uc778\uc774\ub77c\uace0 \ud558\ub294 \uc791\uc740 \uc601\uc5ed\uc73c\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \ub3c4\uba54\uc778\uc740 \ud604\ubbf8\uacbd\uc73c\ub85c\ub3c4 \ubcfc \uc218 \uc5c6\uc744 \ub9cc\ud07c \uc791\uc9c0\ub9cc, \uac01 \ub3c4\uba54\uc778\uc5d0\ub294 \uc218\ucc9c\uc870 \uac1c\uc758 \uc6d0\uc790\uac00 \uc788\uc73c\uba70 \ud558\ub098\uc758 \ubbf8\ub2c8 \uc790\uc11d\uacfc \uac19\uc740 \ud2b9\uc131\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc790\uc131 \uc7ac\ub8cc\ub97c \uac15\ud55c \uc790\uae30\uc7a5\uc5d0 \ub193\uc73c\uba74 \uc77c\ubc18\uc801\uc73c\ub85c \uc5ec\ub7ec \ubc29\ud5a5\uc744 \ud5a5\ud558\uace0 \uc788\ub358 \uac1c\ubcc4 \ub3c4\uba54\uc778\uc774 \uc11c\uc11c\ud788 \uc790\uae30\uc7a5 \ubc29\ud5a5\uc73c\ub85c \uc815\ub82c\ub429\ub2c8\ub2e4. \uc778\uc811\ud55c \ub3c4\uba54\uc778\ub3c4 \uc774 \ubc29\ud5a5\uc73c\ub85c \uc815\ub82c\ub429\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc758 \ub3c4\uba54\uc778\uc774 \uc790\uae30\uc7a5 \ubc29\ud5a5\uc73c\ub85c \uc815\ub82c\ub418\uba74 \ud574\ub2f9 \uc7ac\ub8cc\ub294 \uc790\uc11d\uc774 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ucc29\uc790 \uc804 \uc790\uad6c<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/replace\/2025\/12\/03\/a721c9e9aeff2847be27b8eda116fc1f.webp\" alt=\"domains before magnetization\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ucc29\uc790 \ud6c4 \uc790\uad6c<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/replace\/2025\/12\/03\/bb95807df7e921277813f369d7849ba0.webp\" alt=\"domains after magnetization\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-does-a-magnet-do\"><strong>\uc790\uc11d\uc740 \uc2e4\uc81c\ub85c \uc5b4\ub5a4 \uc791\uc6a9\uc744 \ud569\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/11\/1.-What-is-a-Permanent-Magnet.webp\" alt=\"What does a magnet actually do\" class=\"wp-image-6278\" srcset=\"https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/11\/1.-What-is-a-Permanent-Magnet.webp 800w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/11\/1.-What-is-a-Permanent-Magnet-600x450.webp 600w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/11\/1.-What-is-a-Permanent-Magnet-768x576.webp 768w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/11\/1.-What-is-a-Permanent-Magnet-16x12.webp 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\uc11d\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \uc791\uc6a9\uc744 \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ucca0, \ub2c8\ucf08, \ucf54\ubc1c\ud2b8, \uc77c\ubd80 \uac15\uc7ac \ubc0f \uae30\ud0c0 \ud569\uae08 \ub4f1 \ud2b9\uc815 \ubb3c\uc9c8\uc744 \uc790\uc11d \ucabd\uc73c\ub85c \ub04c\uc5b4\ub2f9\uae41\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ub2e4\ub978 \uc790\uc11d\uc5d0 \uc778\ub825 \ub610\ub294 \ucc99\ub825\uc744 \uac00\ud569\ub2c8\ub2e4(\uac19\uc740 \uadf9\ub07c\ub9ac\ub294 \ubc00\uc5b4\ub0b4\uace0 \ubc18\ub300 \uadf9\ub07c\ub9ac\ub294 \ub04c\uc5b4\ub2f9\uae41\ub2c8\ub2e4).<\/li>\n\n\n\n<li>\uc790\uc11d\uacfc \uc804\uae30 \uc804\ub3c4\uccb4\uac00 \uc6c0\uc9c1\uc77c \ub54c \uc804\ub3c4\uccb4\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uc790\uc720 \uacf5\uac04\uc5d0\uc11c \uc804\ud558\ub97c \ub764 \uc785\uc790\uc758 \uada4\uc801\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub7ec\ud55c \uc791\uc6a9\uc744 \ud1b5\ud574 \uc790\uc11d\uc740 \uc790\uccb4 \uc5d0\ub108\uc9c0\ub97c \uc783\uc9c0 \uc54a\uace0 \ud55c \ud615\ud0dc\uc758 \uc5d0\ub108\uc9c0\ub97c \ub2e4\ub978 \ud615\ud0dc\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4. \uc790\uc11d\uc758 \uae30\ub2a5\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>&nbsp;&nbsp;\uae30\uacc4 \uc5d0\ub108\uc9c0\ub97c \uae30\uacc4 \uc5d0\ub108\uc9c0\ub85c \ubcc0\ud658: \uc608\ub97c \ub4e4\uc5b4 \uc778\ub825\uacfc \ucc99\ub825.<\/li>\n\n\n\n<li>&nbsp;\uae30\uacc4 \uc5d0\ub108\uc9c0\ub97c \uc804\uae30 \uc5d0\ub108\uc9c0\ub85c \ubcc0\ud658: \uc608\ub97c \ub4e4\uc5b4 \ubc1c\uc804\uae30\uc640 \ub9c8\uc774\ud06c.<\/li>\n\n\n\n<li>&nbsp;\uc804\uae30 \uc5d0\ub108\uc9c0\ub97c \uae30\uacc4 \uc5d0\ub108\uc9c0\ub85c \ubcc0\ud658: \uc608\ub97c \ub4e4\uc5b4 \ubaa8\ud130, \uc2a4\ud53c\ucee4 \ubc0f \ud558\uc804 \uc785\uc790 \ud3b8\ud5a5.<\/li>\n\n\n\n<li>&nbsp;\uae30\uacc4 \uc5d0\ub108\uc9c0\ub97c \uc5f4\uc5d0\ub108\uc9c0\ub85c \ubcc0\ud658: \uc608\ub97c \ub4e4\uc5b4 \uc640\uc804\ub958 \ubc0f \ud788\uc2a4\ud14c\ub9ac\uc2dc\uc2a4 \ud1a0\ud06c \uc7a5\uce58.<\/li>\n\n\n\n<li>&nbsp;\uc790\uae30\uacf5\uba85, \ud640 \ud6a8\uacfc \uc18c\uc790 \ubc0f \uc790\uae30\uc800\ud56d.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-are-magnets-made\"><strong>\uc790\uc11d\uc740 \uc5b4\ub5bb\uac8c \uc81c\uc870\ud569\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud604\ub300\uc758 \uc790\uc11d \uc18c\uc7ac\ub294 \uc8fc\uc870, \uc555\ucd95 \ubc0f \uc18c\uacb0, \uc555\ucd95 \ubcf8\ub529, \uc0ac\ucd9c \uc131\ud615, \uc555\ucd9c \ub610\ub294 \uce98\ub9b0\ub354\ub9c1 \ubc29\uc2dd\uc73c\ub85c \uc81c\uc870\ub429\ub2c8\ub2e4. \uc0dd\uc0b0\ub41c \uc790\uc11d\uc5d0\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc5f0\uc0ad\uc774\ub098 \uae30\ud0c0 \uae30\uacc4 \uac00\uacf5\uacfc \uac19\uc740 \ucd94\uac00 \uacf5\uc815\uc774 \ud544\uc694\ud558\uba70, \uc774\ud6c4 \ub354 \ud070 \uc0c1\uc704 \uc5b4\uc148\ube14\ub9ac\ub85c \uc870\ub9bd\ub429\ub2c8\ub2e4. \ub9de\ucda4\ud615 \uae30\uacc4 \uac00\uacf5 \ubc0f \uc870\ub9bd\uc5d0 \uad00\ud55c \uc790\uc138\ud55c \ub0b4\uc6a9\uc740 \uc81c\uc870 \ubc0f \uc870\ub9bd \ud398\uc774\uc9c0\uc5d0\uc11c \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"are-there-different-types-of-magnets-available\"><strong>\uc790\uc11d\uc5d0\ub294 \uc5b4\ub5a4 \uc885\ub958\uac00 \uc788\uc2b5\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/What-different-types-of-magnets-exist.webp\" alt=\"What different types of magnets exist\" class=\"wp-image-6309\" srcset=\"https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/What-different-types-of-magnets-exist.webp 800w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/What-different-types-of-magnets-exist-600x450.webp 600w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/What-different-types-of-magnets-exist-768x576.webp 768w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/What-different-types-of-magnets-exist-16x12.webp 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\uc11d\uc740 \uc601\uad6c\uc790\uc11d, \uc77c\uc2dc\uc790\uc11d, \uc804\uc790\uc11d\uc758 \uc138 \uac00\uc9c0 \ubc94\uc8fc\ub85c \uad6c\ubd84\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc601\uad6c\uc790\uc11d<\/strong> \uc790\uae30\uc7a5\uc744 \ud615\uc131\ud558\ub294 \ub370 \uc678\ubd80 \uc790\uae30\uc7a5 \ubc1c\uc0dd\uc6d0\uc774\ub098 \uc804\uae30\uac00 \ud544\uc694\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc77c\uc2dc \uc790\uc11d<\/strong> \uc790\uae30\uc7a5 \ubc1c\uc0dd\uc6d0\uc5d0 \uc811\ucd09\ud558\uac70\ub098 \uac00\uae4c\uc774 \uc788\uc744 \ub54c \uc790\uc11d\ucc98\ub7fc \uc791\uc6a9\ud558\uc9c0\ub9cc, \uc790\uae30\uc7a5 \ubc1c\uc0dd\uc6d0\uc774 \uc81c\uac70\ub418\uba74 \uc774\ub7ec\ud55c \ud2b9\uc131\uc744 \uc783\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc804\uc790\uc11d<\/strong> \uc790\uc11d\uc73c\ub85c \uc791\uc6a9\ud558\ub824\uba74 \uc804\uae30\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc601\uad6c\uc790\uc11d \uc81c\uc870\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc601\uad6c\uc790\uc11d \uc7ac\ub8cc\uc5d0\ub294 \uace0\uc720\ud55c \ud2b9\uc131\uc744 \uc9c0\ub2cc \ub2e4\uc591\ud55c \uc885\ub958\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uac01 \uc7ac\ub8cc\uc5d0\ub294 \uc870\uc131\uc740 \uac19\uc9c0\ub9cc \ud2b9\uc131\uc774 \uc870\uae08\uc529 \ub2e4\ub978 \uc5ec\ub7ec \ub4f1\uae09\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-are-the-permanent-magnets-composed-of\"><strong>\uc601\uad6c\uc790\uc11d\uc740 \uc5b4\ub5a4 \uc7ac\ub8cc\ub85c \ub9cc\ub4e4\uc5b4\uc9d1\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud604\ub300\uc758 \uc601\uad6c\uc790\uc11d\uc740 \uc5f0\uad6c\ub97c \ud1b5\ud574 \ub354 \uc6b0\uc218\ud55c \uc790\uc11d\uc744 \ub9cc\ub4e4 \uc218 \uc788\ub294 \uac83\uc73c\ub85c \ubc1d\ud600\uc9c4 \ud2b9\uc218 \ud569\uae08\uc73c\ub85c \uc81c\uc870\ub429\ub2c8\ub2e4. \ud604\uc7ac \uac00\uc7a5 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \uc601\uad6c\uc790\uc11d \uc7ac\ub8cc\ub294 \uc54c\ub8e8\ubbf8\ub284-\ub2c8\ucf08-\ucf54\ubc1c\ud2b8(\uc54c\ub2c8\ucf54), \uc2a4\ud2b8\ub860\ud2ac-\ucca0(\ud398\ub77c\uc774\ud2b8 \ub610\ub294 \uc138\ub77c\ubbf9), \ub124\uc624\ub514\ubbb4-\ucca0-\ubd95\uc18c(\ub124\uc624\ub514\ubbb4 \uc790\uc11d \ub610\ub294 \uc288\ud37c \uc790\uc11d), \uc0ac\ub9c8\ub968-\ucf54\ubc1c\ud2b8 \uc790\uc11d \uc7ac\ub8cc\uc785\ub2c8\ub2e4. \uc0ac\ub9c8\ub968-\ucf54\ubc1c\ud2b8 \uacc4\uc5f4\uacfc \ub124\uc624\ub514\ubbb4-\ucca0-\ubd95\uc18c \uacc4\uc5f4\uc744 \ud1b5\uce6d\ud558\uc5ec \ud76c\ud1a0\ub958\ub77c\uace0 \ud569\ub2c8\ub2e4. \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uae30 <a href=\"https:\/\/ct.semitanker.com\/korea\/how-are-neodymium-magnets-made\/\" target=\"_blank\" rel=\"noreferrer noopener\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-theme-palette-1-color\"><strong>\ub124\uc624\ub514\ubbb4 \uc790\uc11d \uc81c\uc870 \ubc29\ubc95<\/strong><\/mark><\/a>?<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-are-rare-earth-magnets\"><strong>\ud76c\ud1a0\ub958 \uc790\uc11d\uc774\ub780 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud76c\ud1a0\ub958 \uc790\uc11d\uc740 \ud76c\ud1a0\ub958 \uc6d0\uc18c\uad70\uc73c\ub85c \uad6c\uc131\ub41c \uc790\uc11d\uc785\ub2c8\ub2e4. \uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \ud76c\ud1a0\ub958 \uc790\uc11d\uc5d0\ub294 \ub124\uc624\ub514\ubbb4-\ucca0-\ubd95\uc18c \uc790\uc11d(\ub124\uc624\ub514\ubbb4 \uc790\uc11d)\uacfc \uc0ac\ub9c8\ub968-\ucf54\ubc1c\ud2b8 \uc790\uc11d(SmCo \uc790\uc11d)\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-is-a-temporary-magnet\"><strong>\uc77c\uc2dc \uc790\uc11d\uc774\ub780 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5f0\ucca0\uacfc \ud37c\uba40\ub85c\uc774(\ucca0\uacfc \ub2c8\ucf08\uc758 \ud569\uae08) \uac19\uc740 \uc77c\ubd80 \ucca0 \ud569\uae08\uc740 \uc57d\ud55c \uc790\uae30\uc7a5\ub9cc\uc73c\ub85c\ub3c4 \uc27d\uac8c \uc790\ud654\ub429\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc790\uae30\uc7a5\uc774 \uc81c\uac70\ub418\ub294 \uc989\uc2dc \uc790\uc131\uc744 \uc783\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubb3c\uc9c8\uc740 \uc804\ud654\uae30\uc640 \uc804\ub3d9\uae30 \ub4f1\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc6b0\uc218\ud55c \uc77c\uc2dc \uc790\uc11d\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-are-electromagnets\"><strong>\uc804\uc790\uc11d\uc774\ub780 \ubb34\uc5c7\uc778\uac00?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc804\uc790\uc11d\uc740 \ub9e4\uc6b0 \uac15\ub825\ud55c \uc790\uc11d\uc774 \ud544\uc694\ud55c \uacf3\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc804\uc790\uc11d\uc740 \uc804\ub958\uac00 \ud750\ub974\ub294 \ub3c4\uc120 \ucf54\uc77c\uc5d0 \uae08\uc18d \ucf54\uc5b4\ub97c \uc0bd\uc785\ud558\uc5ec \ub9cc\ub4ed\ub2c8\ub2e4. \ucf54\uc77c\uc5d0 \uc804\ub958\uac00 \ud750\ub974\uba74 \uc790\uae30\uc7a5\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc804\uc790\uc11d\uc758 \uc138\uae30\ub294 \uc804\ub958\uc758 \uc138\uae30\uc640 \ub3c4\uc120\uc758 \uad8c\uc120 \uc0c1\ud0dc\uc5d0 \ub530\ub77c \uacb0\uc815\ub429\ub2c8\ub2e4. \uadf9\uc131\uc740 \uc804\ub958\uc758 \ud750\ub984\uc5d0 \ub530\ub77c \uacb0\uc815\ub429\ub2c8\ub2e4. \uc804\ub958\uac00 \ud750\ub974\ub294 \ub3d9\uc548 \ucf54\uc5b4\ub294 \uc790\uc11d\ucc98\ub7fc \uc791\uc6a9\ud558\uc9c0\ub9cc, \uc804\ub958\ub97c \ucc28\ub2e8\ud558\uba74 \uc790\uc11d\uacfc \uac19\uc740 \ud2b9\uc131\uc774 \uc989\uc2dc \uc0ac\ub77c\uc9d1\ub2c8\ub2e4. \uc804\uc790\uc11d\uc740 \uc804\ub3d9\uae30, \ud154\ub808\ube44\uc804, \uc790\uae30\ubd80\uc0c1\uc5f4\ucc28, \uc804\ud654\uae30, \ucef4\ud4e8\ud130\ub97c \ube44\ub86f\ud55c \ub300\ubd80\ubd84\uc758 \ud604\ub300 \uc7a5\uce58\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-are-eddy-currents\"><strong>\uc790\uae30 \ud604\uc0c1\uc5d0\uc11c \uc640\uc804\ub958\ub780 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\uae30\uc7a5 \ub0b4\uc5d0 \ub193\uc778 \uc804\uae30 \ub3c4\uccb4\uc640 \uc790\uae30\uc7a5\uc774 \uc0c1\ub300\uc801\uc73c\ub85c \uc6c0\uc9c1\uc774\uba74 \ub3c4\uccb4\uc5d0 \uc804\ub958\uac00 \uc720\ub3c4\ub429\ub2c8\ub2e4. \uc774\ub807\uac8c \ubc1c\uc0dd\ud55c \uc640\uc804\ub958\ub294 \ub2e4\uc2dc \uc790\uae30\uc7a5\uc744 \ud615\uc131\ud558\uc5ec \uc6d0\ub798 \uc790\uae30\uc7a5\uacfc \uc804\uae30 \ub3c4\uccb4 \uc0ac\uc774\uc758 \uc0c1\ub300 \uc6b4\ub3d9\uc744 \ubc29\ud574\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-do-magnets-cost\"><strong>\uc790\uc11d\uc758 \uc77c\ubc18\uc801\uc778 \uac00\uaca9\uc740 \uc5bc\ub9c8\uc785\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\uc11d \uc7ac\ub8cc\uc5d0 \ub530\ub77c \uac00\uaca9 \ucc28\uc774\uac00 \ub9e4\uc6b0 \ud074 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uc790\uc11d \uac00\uaca9\uc758 \ub300\ub7b5\uc801\uc778 \ucd94\uc815\uce58\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ucc38\uace0:<\/strong> \uc774 \uc5f4\uc5d0 \ud45c\uc2dc\ub41c \ube44\uc6a9\uc740 \uc0c1\ub300 \ube44\uc6a9\uc774\uba70, \ud2b9\uc218 \uac00\uacf5\uc774\ub098 \uae30\ud0c0 \ud2b9\uc218 \uc0ac\uc591\uc774 \uc5c6\ub294 \uc790\uc11d \uc7ac\ub8cc\uc758 \ub300\ub7c9 \uad6c\ub9e4\ub97c \uae30\uc900\uc73c\ub85c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud30c\uc6b4\ub4dc\ub2f9 \ube44\uc6a9\uc744 \uae30\uc900\uc73c\ub85c \ud558\uba74 \ub124\uc624\ub514\ubbb4 \uc790\uc11d\uc740 \uad6c\ub9ac \ud569\uae08\ubcf4\ub2e4 \ub9e4\uc6b0 \ube44\uc300 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 BHmax\ub2f9 \ube44\uc6a9\uc744 \uae30\uc900\uc73c\ub85c \ud558\uba74 \uadf8\ub2e4\uc9c0 \ube44\uc2f8\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc790\uae30\uc7a5\uc774 \uac15\ud560\uc218\ub85d \uc790\uc11d\uc774 \uc801\uc6a9\ub418\ub294 \uc804\uccb4 \uc7a5\uce58\ub97c \ub9e4\uc6b0 \uc791\uac8c \uc124\uacc4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc804\uccb4 \ube44\uc6a9\uc744 \uc808\uac10\ud560 \uc218 \uc788\uc5b4 \uc790\ub825\uc774 \uac15\ud55c \uc790\uc11d \uc7ac\ub8cc\uac00 \ube44\uc6a9 \uce21\uba74\uc5d0\uc11c \uc720\ub9ac\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"do-the-magnets-have-industry-standards\"><strong>\uc790\uc11d\uc5d0 \uad00\ud55c \uc0b0\uc5c5 \ud45c\uc900\uc774 \uc788\uc2b5\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608. Magnetic Materials Producers Association(MMPA)\uacfc Magnet Distributors and Fabrications Association(MDFA)\uc5d0\uc11c \ud45c\uc900\uc744 \uc81c\uc815\ud588\uc2b5\ub2c8\ub2e4. \ud604\uc7ac \ub450 \ud611\ud68c\ub294 International Magnetics Association\uc73c\ub85c \uc54c\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ud3b8\uc758\ub97c \uc704\ud574 \uc774\ub4e4 \ub2e8\uccb4\uac00 \ubc1c\ud589\ud55c \uc77c\ubd80 \uac04\ud589\ubb3c\uacfc \ud45c\uc900\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc801\uc6a9 \uc6a9\ub3c4:<\/strong> \uc790\uc11d\uc774 \uace0\uc815, \uc778\uc591, \ubd84\ub9ac, \uc774\ub3d9, \uac10\uc9c0 \ub610\ub294 \uae30\ud0c0 \uc6a9\ub3c4\uc5d0 \ud544\uc694\ud55c\uc9c0 \uba85\uc2dc\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc120\ud638\ud558\ub294 \uc790\uc11d \ud615\uc0c1:<\/strong> \uc608: \ub514\uc2a4\ud06c, \ub9c1, \ube14\ub85d, \uc6d0\ud1b5, \uad6c \ub610\ub294 \ub9de\ucda4\ud615 \ud615\uc0c1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud544\uc694\ud55c \uc790\uc11d \ud06c\uae30<\/strong>: \uc9c1\uacbd, \uae38\uc774, \ud3ed, \ub192\uc774, \ub450\uaed8 \ub4f1\uc758 \uc815\ud655\ud55c \uce58\uc218\ub97c \uc9c0\uc815\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uacf5\ucc28 \uc694\uad6c\uc0ac\ud56d:<\/strong> \ud574\ub2f9 \uc801\uc6a9 \ubd84\uc57c\uc5d0\uc11c \ud5c8\uc6a9\ub418\ub294 \uce58\uc218 \ud3b8\ucc28\uc758 \ubc94\uc704\ub97c \uba85\uc2dc\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc791\ub3d9 \ud658\uacbd:<\/strong> \uace0\uc628, \uc2b5\uae30 \ub178\ucd9c, \uc2e4\uc678 \ub610\ub294 \uc2e4\ub0b4 \uc0ac\uc6a9, \ubd80\uc2dd\uc131 \ubb3c\uc9c8\uacfc\uc758 \uc811\ucd09 \ub4f1\uc758 \uc870\uac74\uc744 \uace0\ub824\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud544\uc694\ud55c \uc790\ub825<\/strong>: \uc6a9\ub3c4\uc5d0 \ud544\uc694\ud55c \uc778\uc7a5\ub825, Gauss \uc218\uc900 \ub610\ub294 \ub4f1\uae09(\uc608: N35, N42, N52)\uc744 \uc815\uc758\ud558\uc2ed\uc2dc\uc624. (\uc790\uc138\ud788 \uc54c\uc544\ubcf4\uae30: <strong><a href=\"https:\/\/ct.semitanker.com\/korea\/grades-of-magnets\/\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-theme-palette-1-color\">\uc790\uc11d \ub4f1\uae09<\/mark><\/a><\/strong>)(<a href=\"https:\/\/ct.semitanker.com\/korea\/n42-vs-n45-vs-n52-magnet\/\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-theme-palette-1-color\">N42, N45, N52 \uc790\uc11d \ube44\uad50<\/mark><\/strong><\/a>, <a href=\"https:\/\/ct.semitanker.com\/korea\/n35-vs-n52-magnet\/\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-theme-palette-1-color\">N35\uc640 N52 \uc790\uc11d \ube44\uad50<\/mark><\/strong><\/a>)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc608\uc0b0 \uc81c\ud55c:<\/strong> \uc790\uc11d \uac00\uaca9\uc774 \uc77c\uc815 \uae08\uc561\uc744 \ucd08\uacfc\ud558\uc9c0 \uc54a\uc544\uc57c \ud558\ub294 \uacbd\uc6b0, \uc774\ub97c \uae30\uc900\uc73c\ub85c \uc801\ud569\ud55c \uc18c\uc7ac\ub098 \ub4f1\uae09\uc744 \uacb0\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud544\uc694 \uc218\ub7c9:<\/strong> \ub2e8\uc77c \uc0d8\ud50c, \uc18c\ub7c9 \ubc30\uce58 \ub610\ub294 \ub300\ub7c9 \uc0dd\uc0b0 \uc218\ub7c9 \uc911 \ud544\uc694\ud55c \uaddc\ubaa8\ub97c \uba85\uc2dc\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\uae30\uc758 \uae30\ubcf8 \uc6d0\ub9ac\ub97c \uc774\ud574\ud558\ub824\uba74 \uc608\uce21 \uac00\ub2a5\ud55c \ud2b9\uc131\uc744 \ubcf4\uc774\ub294 \uc18c\uc7ac\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. Osnec\ub294 \uadf9\uc131, \uc790\uacc4 \ubd84\ud3ec \ubc0f \uc18c\uc7ac \ubc18\uc751 \uc804\ubc18\uc5d0\uc11c \uc77c\uad00\ub41c \uc131\ub2a5\uc744 \ub098\ud0c0\ub0b4\ub294 \uc790\uc11d\uc744 \uc0dd\uc0b0\ud558\ubbc0\ub85c \uae30\ubcf8 \uac1c\ub150\uc744 \uc124\uba85\ud558\ub294 \ub370 \uc801\ud569\ud569\ub2c8\ub2e4. \ud559\uc0dd\uacfc \uc5d4\uc9c0\ub2c8\uc5b4\uac00 \uade0\uc77c\ud55c \uc790\uacc4 \uac70\ub3d9\uc744 \uad00\ucc30\ud560 \uc218 \uc788\uc5b4 \uc778\ub825, \ucc99\ub825 \ubc0f \ubc30\ud5a5\uc758 \uae30\ubcf8 \uc6d0\ub9ac\ub97c \ub354\uc6b1 \uc27d\uac8c \uc2dc\uc5f0\ud558\uace0 \ubd84\uc11d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"3-0-magnetic-strength\"><strong>3. \uc790\ub825\uc758 \uc774\ud574<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"449\" src=\"https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/How-long-does-a-magnet-retain-its-strength.webp\" alt=\"How long does a magnet retain its strength\" class=\"wp-image-6308\" srcset=\"https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/How-long-does-a-magnet-retain-its-strength.webp 800w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/How-long-does-a-magnet-retain-its-strength-600x337.webp 600w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/How-long-does-a-magnet-retain-its-strength-768x431.webp 768w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/How-long-does-a-magnet-retain-its-strength-18x10.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-permanent-is-a-magnets-strength\"><strong>\uc790\uc11d\uc740 \uc790\ub825\uc744 \uc5bc\ub9c8\ub098 \uc624\ub798 \uc720\uc9c0\ud569\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\uc11d\uc774 \ud3ec\ud568\ub41c \ubb3c\uccb4\ub97c \uc804\ub825\uc120, \ub2e4\ub978 \uc790\uc11d, \uace0\uc628 \ub4f1 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \uc8fc\ub294 \uc694\uc778\uc5d0\uc11c \uba40\ub9ac \ub450\uba74 \uc790\uc11d\uc758 \uc790\uc131\uc744 \ub354 \uc624\ub798 \uc720\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-could-influence-the-strength-of-a-magnet\"><strong>\uc790\uc11d\uc758 \uc790\ub825\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uc694\uc778\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\uc11d\uc758 \uc790\ub825\uc5d0 \uc601\ud5a5\uc744 \uc904 \uc218 \uc788\ub294 \uc694\uc778\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc5f4<\/li>\n\n\n\n<li>\ubc29\uc0ac\uc120<\/li>\n\n\n\n<li>\uc790\uc11d \uadfc\ucc98\uc758 \uac15\ud55c \uc804\ub958.<\/li>\n\n\n\n<li>\uc778\uc811\ud55c \ub2e4\ub978 \uc790\uc11d.<\/li>\n\n\n\n<li>\ucf54\ud305\ud558\uc9c0 \uc54a\uc740 \ub124\uc624\ub514\ubbb4 \uc790\uc11d\uc740 \uc2b5\ub3c4\uac00 \ub192\uc740 \ud658\uacbd\uc5d0\uc11c \ubd80\uc2dd\ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ucd5c\uc2e0 \uc790\uc11d \uc7ac\ub8cc\ub294 \uae30\uacc4\uc801 \uc190\uc0c1\uc744 \uc77c\uc73c\ud0ac \uc815\ub3c4\ub85c \uac15\ud558\uc9c0 \uc54a\uc740 \ucda9\uaca9\uacfc \uc9c4\ub3d9\uc5d0\ub294 \uc601\ud5a5\uc744 \ubc1b\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"will-the-magnets-become-powerless-with-time\"><strong>\uc790\uc11d\uc740 \uc2dc\uac04\uc774 \uc9c0\ub098\uba74 \uc790\ub825\uc774 \uc57d\ud574\uc9d1\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud604\ub300 \uc790\uc11d \uc7ac\ub8cc\ub294 \uc2dc\uac04\uc774 \uc9c0\ub098\ub3c4 \uc790\ub825\uc744 \uadf9\ud788 \uc77c\ubd80\ub9cc \uc783\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4 \uc0ac\ub9c8\ub968 \ucf54\ubc1c\ud2b8 \uc790\uc11d\uc740 10\ub144 \ub3d9\uc548 \uc790\ub825 \uac10\uc18c\uac00 1% \ubbf8\ub9cc\uc778 \uac83\uc73c\ub85c \uc785\uc99d\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-are-the-most-powerful-magnets\"><strong>\uc5b4\ub5a4 \uc885\ub958\uc758 \uc790\uc11d\uc774 \uac00\uc7a5 \uac15\ub825\ud569\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud604\uc7ac \uc2dc\uc911\uc5d0\uc11c \uac00\uc7a5 \uac15\ub825\ud55c \uc885\ub958\ub294 \ud76c\ud1a0\ub958 \uc790\uc11d\uc785\ub2c8\ub2e4. \ud76c\ud1a0\ub958 \uc790\uc11d \uc911\uc5d0\uc11c\ub294 \ub124\uc624\ub514\ubbb4\uc73c\ub85c \ub9cc\ub4e0 \uc790\uc11d\uc774 \uac00\uc7a5 \uac15\ud569\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uace0\uc628(\uc57d 150 \u00b0C \uc774\uc0c1)\uc5d0\uc11c\ub294 \uc790\uae30 \ud68c\ub85c\uc5d0 \ub530\ub77c \uc0ac\ub9c8\ub968 \ucf54\ubc1c\ud2b8 \uc790\uc11d\uc774 \ub124\uc624\ub514\ubbb4 \uc790\uc11d\ubcf4\ub2e4 \ub354 \uac15\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-are-superconductors\"><strong>\ucd08\uc804\ub3c4 \uc790\uc11d\uc774\ub780 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uac00\uc7a5 \uac15\ub825\ud55c \uc885\ub958\uc758 \uc790\uc11d\uc785\ub2c8\ub2e4. \uae08\uc18d \ucf54\uc5b4\uc870\ucc28 \ud544\uc694\ud558\uc9c0 \uc54a\uc73c\uba70, \uadf9\uc800\uc628\uc5d0 \ub178\ucd9c\ub418\uba74 \ucd08\uc804\ub3c4\uccb4\uac00 \ub418\ub294 \ud2b9\uc218 \uae08\uc18d \ud569\uae08\uc73c\ub85c \ub9cc\ub4e0 \uc640\uc774\uc5b4 \ucf54\uc77c\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"can-i-make-a-magnet-that-i-already-have-stronger\"><strong>\uae30\uc874 \uc790\uc11d\uc758 \uc790\ub825\uc744 \ub354 \uac15\ud558\uac8c \ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\uc11d\uc774 \uc644\uc804\ud788 \ucc29\uc790\ub41c \uc0c1\ud0dc\ub97c \ud3ec\ud654 \uc0c1\ud0dc\ub77c\uace0 \ud558\uba70, \uc774 \uc0c1\ud0dc\uc5d0\uc11c\ub294 \uc790\ub825\uc744 \ub354 \ub192\uc77c \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \uc790\uc11d\uc740 \ubb3c\uc774 \ub4e0 \uc591\ub3d9\uc774\uc640 \uac19\uc2b5\ub2c8\ub2e4. \ubb3c\uc774 \uac00\ub4dd \ucc28\uba74 \ub354 \ucc44\uc6b8 \uc218 \uc5c6\ub294 \uac83\uacfc \uac19\uc740 \uc6d0\ub9ac\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"is-it-possible-to-remagnetize-a-magnet-that-has-lost-its-magnetic-properties\"><strong>\uc790\uae30 \ud2b9\uc131\uc744 \uc783\uc740 \uc790\uc11d\uc744 \uc7ac\ucc29\uc790\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Most magnets can be re-magnetized back to their original strength, provided the material is not too hot.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-is-the-strength-or-the-power-of-a-magnet\"><strong>How is a magnet\u2019s strength or power defined?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The strength of a magnet is most commonly measured by the use of Gauss meters, magnetometers, or pull-testers. Gauss meters are measured in Gauss; Magnetometers in Gauss or any arbitrary unit (it is easy to compare one magnet to another); and pull-testers in pounds and kilograms, or other units of force. A sophisticated measurement of magnets is also made using Helmholtz Coils, search coils, and permeameters.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Special Gauss meters may cost up to a few thousand dollars. Integrated Magnetics stocks a few kinds of Gauss meters between 400 and 1500 apiece. Contact us if you wish to know more about them or place an order.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Suppose I have an NdFeB magnet having a Br of 12,300 Gauss. Will I be able to measure 12,300 Gauss on its surface?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No. The measurement of the Br value is done under closed-circuit conditions. A closed-circuit magnet is, however, of little use. Practically, you will find a field under 12,300 Gauss in the near vicinity of the magnetic surface. Whether the magnet contains any steel or not, the distance between the measurement point and the surface, and the size of the magnet will determine the real measure (assuming that the measurement is being done at room temperature).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In a few examples, a 1&#8243; diameter Grade 35 neodymium magnet that is \u00bc&#8221; long will measure approximately 2,500 Gauss when 1\/16&#8243; away from the surface, and 2,200 Gauss when 1\/8&#8243; away from the surface.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"4-0-magnetic-field\"><strong>4. Magnetic Fields and Their Behaviour<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"478\" src=\"https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/Magnetic-Fields-and-Their-Behaviour.webp\" alt=\"Magnetic Fields and Their Behaviour\" class=\"wp-image-6307\" srcset=\"https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/Magnetic-Fields-and-Their-Behaviour.webp 1024w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/Magnetic-Fields-and-Their-Behaviour-600x280.webp 600w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/Magnetic-Fields-and-Their-Behaviour-768x359.webp 768w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/Magnetic-Fields-and-Their-Behaviour-18x8.webp 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-is-the-strength-of-the-magnetic-field-of-the-earth\"><strong>What is the strength of the magnetic field of the Earth?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The earth has a surface field strength of approximately 0.5 gauss, which can range up to 10 per cent depending on the strength of the crustal field. Between 0.85 and 0.45 is the range that is available in the world. The changes can be between 1% to 5% long lasting between a few hours and a full day, as a result of the geomagnetic storms.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-is-the-formula-that-describes-the-dependence-of-a-magnetic-field-on-distance\"><strong>What is the formula that describes the dependence of a magnetic field on distance?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The intensity of a magnetic field is decreasing more or less exponentially with distance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The following is one illustration of the drop-off with distance of the field (in Gauss) of a samarium cobalt Grade 18-disc magnet 1\/2&#8243; long and 1&#8243; in diameter:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-is-the-field-strength-equation-with-respect-to-distance\"><strong>What is the field strength equation with respect to distance?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In the case of a circular magnet with radius R and length L, the field Bx in the centerline of the magnet at a distance X from the surface is given by the following expression, where Br is the remaining induction of the substance:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"471\" height=\"146\" src=\"https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/image.png\" alt=\"Magnets &amp; Magnetism: All You Need to Know in One Guide\" class=\"wp-image-6299\" srcset=\"https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/image.png 471w, https:\/\/ct.semitanker.com\/wp-content\/uploads\/2025\/12\/image-18x6.webp 18w\" sizes=\"(max-width: 471px) 100vw, 471px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"field-strength-equation\"><strong>\uc790\uae30\uc7a5 \uc138\uae30 \ubc29\uc815\uc2dd<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc11c\ub85c \ub2e4\ub978 \uc9c1\uc0ac\uac01\ud615 \uc790\uc11d \ubc0f \uae30\ud0c0 \uc9c1\uc0ac\uac01\ud615 \uc790\uc11d\uc758 \uc790\uae30\uc7a5\uc744 \uacc4\uc0b0\ud560 \ub54c \ub2e4\ub978 \uacf5\uc2dd\uc744 \uc0ac\uc6a9\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \uc628\ub77c\uc778 \uacc4\uc0b0\uae30\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc790\uccb4 \uc790\uae30\uc7a5 \uc218\uc900\uc744 \uacc4\uc0b0\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-can-i-use-to-block-a-magnetic-field\"><strong>\uc790\uae30\uc7a5\uc744 \ucc28\ub2e8\ud558\ub824\uba74 \ubb34\uc5c7\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\uae30\uc7a5\uc744 \ucc28\ub2e8\ud560 \uc218 \uc788\ub294 \uc720\uc77c\ud55c \uc7ac\ub8cc\ub294 \uc790\uc11d\uc5d0 \ub04c\ub9ac\ub294 \uc7ac\ub8cc\uc785\ub2c8\ub2e4. \ucc28\ub2e8\uc7ac\uc758 \ub450\uaed8\uc5d0 \ub530\ub77c \uc790\uae30\uc7a5\uc774 \ubd80\ubd84\uc801\uc73c\ub85c \ucc28\ub2e8\ub418\uac70\ub098 \uc644\uc804\ud788 \ucc28\ub2e8\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\uae30\uc7a5 \ub9e4\ud551\uc758 \uacbd\uc6b0, Osnec \uc790\uc11d\uc740 \ud640 \ud6a8\uacfc \uc13c\uc11c \ubc0f \uc2dc\uac01\ud654 \ub3c4\uad6c\uc640 \ud568\uaed8 \uc0ac\uc6a9\ud558\uae30\uc5d0 \uc801\ud569\ud55c \uae68\ub057\ud558\uace0 \uba85\ud655\ud55c \uc790\uae30\uc7a5\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc548\uc815\uc801\uc778 \ud328\ud134\uc740 \uc2e4\uc81c \uc2dc\uc5f0\uacfc \uc815\ubc00 \ud14c\uc2a4\ud2b8\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"5-0-magnetic-poles\"><strong>5. \uc790\uadf9\uacfc \uadf8 \uc815\uc758<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-are-magnetic-poles\"><strong>\uc790\uadf9\uc774\ub780 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ubcf4\uc774\uc9c0 \uc54a\ub294 \uc790\uc18d\uc120\uc774 \ubc29\uc0ac\ub418\uc5b4 \ub098\uc624\uace0 \ub2e4\uc2dc \uc790\uc11d\uc73c\ub85c \ub4e4\uc5b4\uac00\ub294 \ud45c\uba74\uc744 \uc790\uadf9\uc774\ub77c\uace0 \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-are-the-conventional-definitions-of-the-north-and-south-poles\"><strong>\ubd81\uadf9\uacfc \ub0a8\uadf9\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc5b4\ub5bb\uac8c \uc815\uc758\ud569\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\uc11d\uc758 \ubd81\uadf9\uc740 \uc790\uc720\ub86d\uac8c \uc6c0\uc9c1\uc77c \uc218 \uc788\ub3c4\ub85d \ub450\uc5c8\uc744 \ub54c \uc9c0\uad6c\uc758 \ubd81\uadf9\uc744 \ud5a5\ud558\ub294 \uadf9\uc785\ub2c8\ub2e4. \ub2e4\uc2dc \ub9d0\ud574, \uc790\uc11d\uc758 \ubd81\uadf9\uc740 \uc9c0\uad6c\uc758 \ubd81\uadf9\uc744 \ub530\ub77c\uac00\uac8c \ub429\ub2c8\ub2e4. \ub9c8\ucc2c\uac00\uc9c0\ub85c \uc790\uc11d\uc758 \ub0a8\uadf9\uc740 \uc9c0\uad6c\uc758 \ub0a8\uadf9\uc744 \ub530\ub77c\uac11\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"can-a-specific-pole-be-identified\"><strong>\ud2b9\uc815 \uc790\uadf9\uc744 \uc2dd\ubcc4\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608. \uc9c0\uc815\ub41c \uc0ac\ud56d\uc5d0 \ub530\ub77c \uc790\uc11d\uc758 \uc704\ucabd \ub610\ub294 \uc544\ub798\ucabd\uc5d0 \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-in-the-world-do-you-know-it-is-the-north-pole-when-there-is-no-sign-of-it\"><strong>\uc544\ubb34\ub7f0 \ud45c\uc2dc\uac00 \uc5c6\ub294\ub370 \ubd81\uadf9\uc778\uc9c0 \uc5b4\ub5bb\uac8c \uc54c \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub208\uc73c\ub85c \ubcf4\uace0\ub294 \uc54c \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uc790\uc11d \uac00\uae4c\uc774\uc5d0 \ub098\uce68\ubc18\uc744 \uac00\uc838\uac00\uc11c \ud655\uc778\ud569\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \uc9c0\uad6c\uc758 \ubd81\uadf9\uc744 \ud5a5\ud558\ub294 \ub098\uce68\ubc18 \ubc14\ub298 \ub05d\uc774 \uc790\uc11d\uc758 \ub0a8\uadf9\uc744 \ud5a5\ud558\uac8c \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"6-0-magnetic-flux\"><strong>6. \uc790\uae30 \ud50c\ub7ed\uc2a4\uc640 \uadf8 \uc791\uc6a9<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-do-lines-of-magnetic-flux-behave\"><strong>How do lines of magnetic flux behave in space?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The forces are three-dimensional as lines and surround a bar magnet on each side.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Opposites repel, and the unlike opposites attract. Two magnets with opposite poles increase the force lines, which become united on coming into contact, and the two magnets attract.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As the similar poles of a magnet are close another line of force is pushed away, and the magnet repels another.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Controlling flux density is a major challenge in rare-earth magnets. Brands like <strong>Osnec<\/strong> perform thermal-cycle testing and flux stability analysis to ensure their magnets maintain consistent flux even under mechanical or temperature stress.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"7-0-magnetic-orientation\"><strong>7. Magnetic Orientation and Easy Axes<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-is-meant-by-the-direction-of-orientation\"><strong>What does \u201cdirection of orientation\u201d mean in magnets?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The majority of modern magnet materials are grained; they can be most easily maximally magnetized only in one direction. This is the easy axis, or the orientation direction, or the axis.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un-oriented magnets (also called &#8220;Isotropic magnets&#8221;) are far weaker compared to oriented magnets, and may be made to be magnetized in any direction. Oriented magnets (or as they are sometimes called, Anisotropic magnets) are not directed everywhere &#8211; they are preferentially oriented in a direction they are supposed to be magnetized.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Whether axial, diametrical, or radial orientation is required, <strong>Osnec<\/strong> manufactures magnets with tightly controlled orientation tolerances. This consistency improves the overall performance of assemblies and rotational systems.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"8-0-magnetic-characteristics\"><strong>8. Key Magnetic Characteristics<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Three major properties of magnets include:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Residual Induction: Assuming the symbol is Br, and in units of Gauss, this is an indication of the strength of the magnet that it could be.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Coercive Force: Since Hc is a symbol and is determined in Oersteds, this is a measure of the toughness of the task of de-magnetizing the magnet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Maximum Energy Product: Using the various designations, BHmax, abbreviated as bhmax, the measurement unit being Gauss-Oersteds, is an indicator of the amount of magnet material needed to project a specified amount of magnetic flux.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"9-0-magnetic-properties\"><strong>9. Magnetic Properties of Common Materials<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">What are the characteristics of the common magnet materials?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The following are the three significant characteristics of magnets of some of the most frequently used types of magnets today:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-will-i-do-with-this-information\"><strong>How can this information be used in practice?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Given the size of the magnet, you can get an approximation of the amount of the magnetic flux various materials will project at a particular distance. This information may also be used to compare a material with another.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example:<\/strong> What is the difference in flux that a neodymium grade 35 magnet will project as compared to a ceramic grade 5 of the same size at a given distance? Simply divide the Br of the neo 35 by the Br of ceramic 5 (12300\/3950) to get 3.1. This means that the neo grade 35 will project 3.1 times the flux a same-size ceramic grade 5 would at a given distance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Since the flux needed at a certain distance from the magnet is known, you can use this to determine and estimate the size of the volume of a magnet material you will need for varying magnets.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Problem: <\/strong>What would be the volume at which 5 magnets of ceramic would produce the same flux as a grade -35 of neodymium magnet at that distance? All that you have to do is divide BHmax of neo-35 by BHmax of ceramic-5 (35\/3.6) to obtain 9.7. This implies that the amount of the ceramic-5 magnets would be 9.7 times more than that of the neo-35 magnet to produce the same flux.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"10-0-magnet-operating-temperatures\"><strong>10. Operating Temperatures of Magnet Materials<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-are-the-highest-recommended-temperatures-of-operation-of-various-magnet-materials\"><strong>What are the maximum recommended operating temperatures for different magnet materials?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The highest temperature that a magnet can work with is heavily dependent on the permeance coefficient, or Pc, of the material. Pc is dependent upon the magnetic circuit on which the magnet is functioning. The greater the Pc (the more closed is the circuit), the greater the temperature within which the magnet may be used without severe demagnetism. The following table presents a range of the maximum operating temperatures of the various classes of magnet material. Special care may be required at temperatures near those given below to make sure that the magnet will not become demagnetized.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-is-the-highest-temperature-that-a-magnet-can-be-used-at-not-a-set-limit\"><strong>What is the highest temperature at which a magnet can still function effectively?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The magnets serve at various efficiency levels depending on the various circuits that they are involved with. The more closed the circuit is in which the magnet is operating in the more stable it will be, and the less the temperature will have an impact on the magnet.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"11-0-machining-magnets\"><strong>11. Machining and Processing Magnets<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"can-magnets-be-machined\"><strong>Is it possible to machine magnets?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes, magnets can be machined. Nonetheless, the hard magnet materials are so hard to machine as opposed to the flexible or rubber-like magnet materials. There should be as much as possible, machining in the unmagnetized form, by the use of diamond tools and\/or soft grinding wheels. Generally, machine-hardened magnet materials are not worth attempting to machine unless you are conversant with these special machining practices.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-is-the-price-of-machining-magnets\"><strong>What factors affect the cost of machining magnets?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The factors that require the determination of the cost of the machine of the magnets include:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quantity: <\/strong>The greater the quantity, the less the cost, as set-ups have to spread the set-up cost over the quantity, and special tooling is possible to machine a greater quantity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Material:<\/strong> It is more expensive to machine SmCo materials; they are very brittle, and it is cheaper to machine the flexible materials due to their physical behaviors.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Shape:<\/strong> The shapes that are complex cost more than those that are simple.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tolerances:<\/strong> The tighter the tolerances required, the further the magnets will be from the machine.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Machining magnets requires careful control to avoid cracking and chipping. <strong>Osnec<\/strong> produces sintered materials with cleaner edges and improved structural integrity, making post-machining processes safer and more predictable.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"12-0-magnetic-assemblies\"><strong>12. Magnetic Assemblies and Their Design<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-is-a-magnetic-assembly\"><strong>What is meant by a magnetic assembly?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Magnetic Assemblies are made up of one or more magnets, their other constituents, typically components like steel that tend to influence the functionality of the magnet.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-should-magnets-be-assembled-on-my-device\"><strong>How should magnets be mounted or assembled in my device?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In case the magnet should be attached to a machine, you can fix the magnet using some mechanical means, or you may do it using some adhesives.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Magnets are usually held by adhesives. When applying magnets on uneven surfaces then one needs an adhesive that has a large amount of body to enable conformability to the uneven surface. Hot glues are also discovered to be effective in attaching magnets to ceramics, wood, cloth, and other. In the case of magnets to be bonded to metal, superglue may be applied with high success.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Integrated Magnetics may provide flexible magnets that have adhesives already attached, so all one has to do is peel off the liner and stick the magnet onto your product. Call us, or request us to make a quote on a specialty order, or look at a large stock inventory listed online at www.magnetshop.com, where you can buy online.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is also noted that just like any other adhesive application, the very most important thing would be to make sure all surfaces involved in bonding are clean and dry before bonding.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In assemblies, factors like adhesive choice, housing precision, and orientation balance matter. Osnec designs assemblies with these considerations in mind, ensuring stable magnetic performance and higher operational efficiency.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"13-0-handling-and-storage\"><strong>13. Safe Handling and Storage of Magnets<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"guidelines-on-the-use-and-storage-of-magnets\"><strong>Guidelines for using and storing magnets<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Magnets are to be handled with special care always! The magnets may shatter and cut people or hurt them.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Store magnets out of the magnetic pieces like floppy disks, credit cards, and computer screens.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Keep the store magnets in close packaging containers so that they do not pick up metal debris.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In case you have multiple magnets being stored, they should be in attractive places.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Due to the ease of demagnetization, alnico magnets must be kept with their keepers, which are iron or steel plates that tend to magnetize together, forming the attaching plates of the first one.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Safe handling and storage prevent magnet damage, corrosion, and accidental injury. <strong>Osnec<\/strong> uses packaging systems designed to limit over-attraction, moisture exposure, and impact-related stress during transport. These protective measures demonstrate the importance of proper storage practices and help users understand how environmental factors can impact long-term magnet performance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"14-0-resources\"><strong>14. Further Reading and Reference Resources<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"suggest-some-good-magnetic-reference-books\"><strong>What are some recommended reference books on magnetism?<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><em>Permanent Magnet Design Handbook<\/em>, by Lester Moskowitz, a 385-page book aimed at the technical layperson.<\/li>\n\n\n\n<li><em>Permanent Magnets and their Applications<\/em>, by Dr. Peter Campbell, a 203-page book aimed at the technical person.<\/li>\n\n\n\n<li><em>The Driving Force,<\/em> by James Livingston, a 310- page book aimed at the non-technical reader. A very well written and interesting book on the history of magnets and some of their more exotic applications.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Request a Quote or Contact Us today and tell us how we can serve you with your specialty needs of custom magnets. Magnets are also available for purchase online at MagnetShop.com, with a large inventory.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list\">\n<div id=\"faq-question-1764732619840\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\">\uc790\uc11d\uc740 \uc5b4\ub5a4 \uc7ac\ub8cc\ub85c \ub9cc\ub4e4\uc5b4\uc9c0\ub098\uc694?<\/h3>\n<div class=\"rank-math-answer\">\n\n<p><strong>\uc790\uc11d\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uac15\uc790\uc131 \uae08\uc18d\uacfc \uacf5\ud559\uc801\uc73c\ub85c \uc124\uacc4\ub41c \ud569\uae08\uc73c\ub85c \uc81c\uc870\ub429\ub2c8\ub2e4. \uc8fc\uc694 \uc885\ub958\ub85c\ub294 \ub124\uc624\ub514\ubbb4-\ucca0-\ubd95\uc18c(NdFeB), \uc0ac\ub9c8\ub968 \ucf54\ubc1c\ud2b8(SmCo), \ud398\ub77c\uc774\ud2b8(\uc138\ub77c\ubbf9 \uc0b0\ud654\ucca0), \uc54c\ub2c8\ucf54(\uc54c\ub8e8\ubbf8\ub284-\ub2c8\ucf08-\ucf54\ubc1c\ud2b8), \uadf8\ub9ac\uace0 \ud398\ub77c\uc774\ud2b8 \ub610\ub294 NdFeB \ubd84\ub9d0\uc744 \uc0ac\uc6a9\ud55c \ud50c\ub809\uc2dc\ube14 \uace0\ubb34 \uc790\uc11d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/strong> Osenc\ub294 \ub354 \ub192\uc740 \uc790\uae30 \uc5d0\ub108\uc9c0\uc640 \uc815\ubc00 \ucc29\uc790, \uc6a9\ub3c4\ubcc4 \ucf54\ud305 \ubc0f \ud615\uc0c1\uc73c\ub85c \uc124\uacc4\ub41c \uc0b0\uc5c5\uc6a9 \uace0\uc131\ub2a5 \ud76c\ud1a0\ub958 \ub124\uc624\ub514\ubbb4 \uc790\uc11d(NdFeB)\uc5d0 \uc8fc\ub825\ud569\ub2c8\ub2e4.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1764732931858\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\">\uc790\uc11d\uc740 \uc790\uc5f0\uc801\uc73c\ub85c \uc5b4\ub5bb\uac8c \uc0dd\uc131\ub418\ub098\uc694?<\/h3>\n<div class=\"rank-math-answer\">\n\n<p><strong>\uc790\uc5f0\uc801\uc73c\ub85c \uc0dd\uc131\ub418\ub294 \uc790\uc11d\uc740 \uc790\ucca0\uc11d\uacfc \uac19\uc740 \ucca0\uc774 \ud48d\ubd80\ud55c \uad11\ubb3c\uc774 \uc9c0\uc9c8 \uc791\uc6a9\uc774\ub098 \ub099\ub8b0\ub85c \uc778\ud574 \uc9c0\uad6c \uc790\uae30\uc7a5\uacfc \uc601\uad6c\uc801\uc73c\ub85c \uc815\ub82c\ub420 \ub54c \ud615\uc131\ub429\ub2c8\ub2e4.<\/strong> \uc774\ub7ec\ud55c \ucc9c\uc5f0 \u201c\uc790\uc11d\uc11d\u2019\uc740 \ube44\uad50\uc801 \ud76c\uadc0\ud558\uace0 \uc790\uae30\ub825\uc774 \ud06c\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ud604\ub300 \uc0b0\uc5c5\uc5d0\uc11c\ub294 OSENC\uac00 \uc81c\uc5b4\ub41c \uc18c\uacb0, \uac00\uacf5 \ubc0f \ucc29\uc790 \uacf5\uc815\uc744 \ud1b5\ud574 \uace0\uc131\ub2a5 \ub124\uc624\ub514\ubbb4 \uc790\uc11d(NdFeB)\uc744 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1\ud558\uc5ec \uc815\ubc00\ud558\uac8c \uc815\uc758\ub41c \uc790\uae30 \ud2b9\uc131\uacfc \uc548\uc815\uc801\uc778 \uc131\ub2a5\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1764732935286\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\">\uc790\uc11d\uc744 \ubc18\uc73c\ub85c \ubd80\uc218\uba74 \uc5b4\ub5bb\uac8c \ub418\ub098\uc694?<\/h3>\n<div class=\"rank-math-answer\">\n\n<p><strong>\uc790\uc11d\uc744 \ubc18\uc73c\ub85c \ub098\ub204\uc5b4\ub3c4 \ubd81\uadf9\uacfc \ub0a8\uadf9\uc774 \ubd84\ub9ac\ub418\uc5b4 \uc0dd\uae30\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4. \uac01 \uc870\uac01\uc740 \uace0\uc720\ud55c \ubd81\uadf9\uacfc \ub0a8\uadf9\uc744 \uac00\uc9c4 \ub354 \uc791\uc740 \uc790\uc11d\uc774 \ub429\ub2c8\ub2e4.<\/strong> \uadf8\ub7ec\ub098 \uae30\uacc4\uc801 \ucda9\uaca9\uacfc \ubd88\uaddc\uce59\ud55c \ud30c\ub2e8\uba74\uc73c\ub85c \uc778\ud574 \uc7ac\ub8cc\uac00 \ubd80\ubd84\uc801\uc73c\ub85c \ud0c8\uc790\ub418\uace0, \uc0ac\uc6a9 \uac00\ub2a5\ud55c \uc790\uc18d\uc774 \uac10\uc18c\ud558\uba70, \uc131\ub2a5\uc5d0 \uc601\ud5a5\uc744 \uc904 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1764732939212\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\">\uac00\uc7a5 \uac15\ud55c \uc790\uc11d \uc885\ub958\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/h3>\n<div class=\"rank-math-answer\">\n\n<p><strong>\uc0c1\uc5c5\uc801\uc73c\ub85c \uc774\uc6a9 \uac00\ub2a5\ud55c \uc601\uad6c\uc790\uc11d \uc911 \uac00\uc7a5 \uac15\ub825\ud55c \uc81c\ud488\uc740 \uc18c\uacb0 \ub124\uc624\ub514\ubbb4-\ucca0-\ubd95\uc18c(NdFeB) \ud76c\ud1a0\ub958 \uc790\uc11d\uc774\uba70, \ud2b9\ud788 N52\uc640 \uac19\uc740 \uace0\ub4f1\uae09 \uc81c\ud488\uc774 \uc774\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4.<\/strong> \uc774 \uc790\uc11d\uc740 \ud398\ub77c\uc774\ud2b8, \uc54c\ub2c8\ucf54 \ub610\ub294 SmCo\uc5d0 \ube44\ud574 \uac00\uc7a5 \ub192\uc740 (BH)max\uc640 \ub9e4\uc6b0 \ub192\uc740 \uc794\ub958 \uc790\uc18d \ubc00\ub3c4\ub97c \uc81c\uacf5\ud558\ubbc0\ub85c, \uc18c\ud615 \uc124\uacc4\ub098 \ub192\uc740 \ud1a0\ud06c \ub610\ub294 \ub192\uc740 \ud798\uc774 \ud544\uc694\ud55c \uc124\uacc4\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \uc804\ubb38 \ub124\uc624\ub514\ubbb4 \uc790\uc11d \uc81c\uc870\uc5c5\uccb4\uc778 Osenc\ub294 \ub2e4\uc591\ud55c \uc0b0\uc5c5\uc6a9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \ub9de\ucdb0 \uc628\ub3c4 \uc800\ud56d\uc131\uacfc \ubd80\uc2dd \ubcf4\ud638 \uc131\ub2a5\uc758 \uade0\ud615\uc744 \uace0\ub824\ud558\uba74\uc11c \uc790\ub825 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\ub3c4\ub85d NdFeB \ub4f1\uae09, \ucf54\ud305 \ubc0f \ucc29\uc790 \ubc29\ud5a5\uc744 \uc124\uacc4\ud569\ub2c8\ub2e4. (\uc790\uc138\ud788 \uc54c\uc544\ubcf4\uae30 <a href=\"https:\/\/ct.semitanker.com\/korea\/how-strong-is-a-neodymium-magnet\/\"><strong><mark class=\"has-inline-color has-theme-palette-1-color\">\ub124\uc624\ub514\ubbb4 \uc790\uc11d\uc758 \uc790\ub825\uc740 \uc5bc\ub9c8\ub098 \uac15\ud55c\uac00<\/mark><\/strong><\/a>)<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>You would find answers to most of the usual questions people ask about magnets and magnetism, about the history of magnetism, magnetic materials, magnetic properties, magnetic orientation, magnetic poles, and others. To learn more technical details regarding these aspects, have a look at our Magnetics-101-Design Guide. Request a quote or call us today and see [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":6225,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[54],"tags":[],"class_list":["post-6311","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-magnet"],"_links":{"self":[{"href":"https:\/\/ct.semitanker.com\/korea\/wp-json\/wp\/v2\/posts\/6311","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ct.semitanker.com\/korea\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ct.semitanker.com\/korea\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ct.semitanker.com\/korea\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/ct.semitanker.com\/korea\/wp-json\/wp\/v2\/comments?post=6311"}],"version-history":[{"count":0,"href":"https:\/\/ct.semitanker.com\/korea\/wp-json\/wp\/v2\/posts\/6311\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ct.semitanker.com\/korea\/wp-json\/wp\/v2\/media\/6225"}],"wp:attachment":[{"href":"https:\/\/ct.semitanker.com\/korea\/wp-json\/wp\/v2\/media?parent=6311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ct.semitanker.com\/korea\/wp-json\/wp\/v2\/categories?post=6311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ct.semitanker.com\/korea\/wp-json\/wp\/v2\/tags?post=6311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}