{"id":3910,"date":"2021-05-13T04:14:50","date_gmt":"2021-05-13T04:14:50","guid":{"rendered":"http:\/\/trangdoan.vn\/kythuatkimhoan\/?p=3910"},"modified":"2021-09-07T09:28:21","modified_gmt":"2021-09-07T09:28:21","slug":"cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-1","status":"publish","type":"post","link":"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-1\/","title":{"rendered":"C\u00c1C K\u1ef8 THU\u1eacT C\u01a0 B\u1ea2N TRONG GIA C\u00d4NG KIM HO\u00c0N &#8211; PH\u1ea6N 1"},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Khi b\u1ea1n n\u1eafm v\u1eefng c\u00e1c nguy\u00ean l\u00fd c\u01a1 b\u1ea3n v\u1ec1 h\u1ee3p kim v\u00e0 h\u1ee3p kim h\u00f3a, b\u1ea1n c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u c\u00e1c qu\u00e1 tr\u00ecnh gia c\u00f4ng, nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c k\u1ef9 n\u0103ng v\u00e0 n\u00e2ng cao tay ngh\u1ec1 trong ng\u00e0nh kim ho\u00e0n.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1449 alignright\" src=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-content\/uploads\/2019\/11\/T%C3%ACm-Hi%E1%BB%83u-Quy-Tr%C3%ACnh-Ch%E1%BA%BF-T%C3%A1c-M%E1%BA%ABu-Trang-S%E1%BB%A9c-31.jpg\" alt=\"\" width=\"94\" height=\"116\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-3916 alignleft\" src=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-content\/uploads\/2021\/05\/C%C3%81C-K%E1%BB%B8-THU%E1%BA%ACT-C%C6%A0-B%E1%BA%A2N-TRONG-GIA-C%C3%94NG-KIM-HO%C3%80N-PH%E1%BA%A6N-1-7-300x199.jpg\" alt=\"\" width=\"182\" height=\"115\">C\u00e1c qu\u00e1 tr\u00ecnh c\u01a1 b\u1ea3n trong ng\u00e0nh kim ho\u00e0n bao g\u1ed3m c\u00e1n \u0111\u1ecbnh h\u00ecnh, k\u00e9o d\u00e2y, k\u1ebft n\u1ed1i, r\u00e8n, g\u00f2, h\u00e0n c\u00e1c b\u1ed9 ph\u1eadn \u0111\u1ec3 t\u1ea1o th\u00e0nh s\u1ea3n ph\u1ea9m. C\u00e1c qu\u00e1 tr\u00ecnh n\u00e0y l\u00e0 c\u01a1 b\u1ea3n, kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i th\u1ef1c thi \u0111\u00fang theo c\u00e1c b\u01b0\u1edbc \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y trong s\u00e1ch, nh\u01b0ng b\u1ea1n ph\u1ea3i n\u1eafm v\u1eefng \u0111\u1ec3 c\u00f3 th\u1ec3 c\u1ea3i ti\u1ebfn v\u00e0 \u00e1p d\u1ee5ng cho t\u1eebng s\u1ea3n ph\u1ea9m c\u1ee5 th\u1ec3. C\u00e1c ph\u1ea7n s\u1ebd \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y theo c\u00e1ch h\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc c\u00f9ng v\u1edbi c\u00e1c b\u1ee9c \u1ea3nh minh h\u1ecda, ph\u1ea7n cu\u1ed1i s\u1ebd \u0111\u01b0a ra c\u00e1c k\u1ef9 thu\u1eadt ch\u1ebf t\u00e1c d\u00e2y chuy\u1ec1n, nh\u1eabn, v\u00f2ng \u0111eo tay.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">M\u1ee5c l\u1ee5c<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2a8c281acc7\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a2a8c281acc7\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-1\/#TAO_HINH_CO_BAN\" >T\u1ea0O H\u00ccNH C\u01a0 B\u1ea2N<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-1\/#Can\" >C\u00e1n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-1\/#Keo_day\" >K\u00e9o d\u00e2y<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-1\/#Tao_ong\" >T\u1ea1o \u1ed1ng<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-1\/#Cong_thuc_cat_tam_kim_loai\" >C\u00f4ng th\u1ee9c c\u1eaft t\u1ea5m kim lo\u1ea1i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-1\/#Phuong_phap_tao_ong\" >Ph\u01b0\u01a1ng ph\u00e1p t\u1ea1o \u1ed1ng<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-1\/#Uon_cong_ong\" >U\u1ed1n cong \u1ed1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-1\/#Nhan_can_da_don_gian\" >Nh\u1eabn c\u1ea9n \u0111\u00e1 \u0111\u01a1n gi\u1ea3n<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"TAO_HINH_CO_BAN\"><\/span><span style=\"color: #000000;\">T\u1ea0O H\u00ccNH C\u01a0 B\u1ea2N<\/span><span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u ch\u1ebf t\u00e1c s\u1ea3n ph\u1ea9m kim ho\u00e0n c\u1ee5 th\u1ec3, b\u1ea1n c\u1ea7n t\u1ea1o h\u00ecnh th\u00edch h\u1ee3p cho th\u1ecfi \u0111\u00fac. C\u00e1c h\u00ecnh d\u1ea1ng \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u trong ch\u01b0\u01a1ng n\u00e0y bao g\u1ed3m t\u1ea5m, d\u00e2y, thanh v\u00e0 \u1ed1ng. Sau khi t\u1ea1o h\u00ecnh th\u00edch h\u1ee3p, b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c nguy\u00ean c\u00f4ng nh\u01b0 c\u01b0a, c\u1eaft, h\u00e0n, r\u00e8n\u2026<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Khi t\u1ea1o h\u00ecnh, kim lo\u1ea1i ch\u1ecbu l\u1ef1c t\u00e1c d\u1ee5ng kh\u00e1 l\u1edbn, b\u1ecb bi\u1ebfn d\u1ea1ng v\u00e0 thay \u0111\u1ed5i c\u1ea5u tr\u00fac b\u00ean trong. \u0110i\u1ec1u quan tr\u1ecdng l\u00e0 th\u01b0\u1eddng xuy\u00ean ti\u1ebfn h\u00e0nh \u1ee7 kim lo\u1ea1i m\u1ed7i khi th\u1ef1c hi\u1ec7n m\u1ee9c \u0111\u1ed9 bi\u1ebfn d\u1ea1ng \u0111\u1ebfn 50%, nh\u1eb1m kh\u00f4i ph\u1ee5c t\u00ednh d\u1ebbo cho kim lo\u1ea1i, tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng r\u1ea1n n\u1ee9t ho\u1eb7c ph\u00e1 h\u1ee7y.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Sau khi \u1ee7, b\u1ec1 m\u1eb7t kim lo\u1ea1i s\u1ebd c\u00f3 l\u1edbp oxy h\u00f3a, c\u1ea7n l\u00e0m s\u1ea1ch b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p nh\u00fang trong dung d\u1ecbch acid th\u00edch h\u1ee3p. Sau khi kh\u1eed l\u1edbp oxy h\u00f3a, c\u1ea7n r\u1eeda s\u1ea1ch kim lo\u1ea1i trong d\u00f2ng n\u01b0\u1edbc ch\u1ea3y ho\u1eb7c dung d\u1ecbch ki\u1ec1m lo\u00e3ng v\u00e0 \u0111\u1ec3 kh\u00f4. Sau c\u00f4ng \u0111o\u1ea1n n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 c\u00e1n kim lo\u1ea1i th\u00e0nh t\u1ea5m ho\u1eb7c k\u00e9o th\u00e0nh d\u00e2y.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Can\"><\/span><span style=\"color: #000000;\">C\u00e1n<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Thi\u1ebft b\u1ecb c\u00e1n th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 t\u1ea1o h\u00ecnh kim lo\u1ea1i trong x\u01b0\u1edfng kim ho\u00e0n. S\u1ea3n ph\u1ea9m c\u00e1n th\u01b0\u1eddng g\u1ed3m hai ki\u1ec3u h\u00ecnh d\u1ea1ng c\u01a1 b\u1ea3n l\u00e0 thanh vu\u00f4ng v\u00e0 t\u1ea5m. Thanh vu\u00f4ng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 k\u00e9o d\u00e2y. T\u1ea5m l\u00e0 h\u00ecnh d\u1ea1ng c\u01a1 b\u1ea3n, \u0111\u00f4i khi \u0111\u01b0\u1ee3c cung c\u1ea5p v\u1edbi c\u00e1c chi\u1ec1u d\u00e0y ti\u00eau chu\u1ea9n. Tuy nhi\u00ean, b\u1ea1n n\u00ean bi\u1ebft ph\u01b0\u01a1ng ph\u00e1p c\u00e1n t\u1ea5m v\u00e0 k\u00e9o d\u00e2y, do trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, b\u1ea1n c\u1ea7n t\u1ea1o h\u00ecnh kim lo\u1ea1i ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u c\u00f4ng vi\u1ec7c. Ngo\u00e0i ra b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng k\u1ef9 thu\u1eadt n\u00e0y \u0111\u1ed1i v\u1edbi c\u00e1c v\u1ee5n kim lo\u1ea1i ph\u1ebf li\u1ec7u t\u1eeb qu\u00e1 tr\u00ecnh gia c\u00f4ng. T\u1eeb ph\u1ebf li\u1ec7u, b\u1ea1n c\u00f3 th\u1ec3 n\u1ea5u ch\u1ea3y, \u0111\u00fac, gia c\u00f4ng v\u00e0 c\u00e1n th\u00e0nh t\u1ea5m.<\/span><\/p>\n<div id=\"attachment_3912\" style=\"width: 311px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3912\" class=\"wp-image-3912 \" src=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-content\/uploads\/2021\/05\/C%C3%81C-K%E1%BB%B8-THU%E1%BA%ACT-C%C6%A0-B%E1%BA%A2N-TRONG-GIA-C%C3%94NG-KIM-HO%C3%80N-PH%E1%BA%A6N-1-8.png\" alt=\"\" width=\"301\" height=\"497\"><p id=\"caption-attachment-3912\" class=\"wp-caption-text\">M\u00e1y c\u00e1n<\/p><\/div>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Khi s\u1eed d\u1ee5ng m\u00e1y c\u00e1n, b\u1ea1n h\u00e3y quay tay quay kho\u1ea3ng n\u1eeda v\u00f2ng m\u1ed7i khi \u0111\u01b0a kim lo\u1ea1i v\u00e0o gi\u1eefa tr\u1ee5c c\u00e1n, duy tr\u00ec t\u00ednh d\u1ebbo c\u1ee7a kim lo\u1ea1i b\u1eb1ng c\u00e1ch \u1ee7 v\u00e0 kh\u1eed oxy h\u00f3a b\u1ec1 m\u1eb7t cho \u0111\u1ebfn khi \u0111\u1ea1t \u0111\u01b0\u1ee3c h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc mong mu\u1ed1n.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Keo_day\"><\/span><span style=\"color: #000000;\">K\u00e9o d\u00e2y<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">V\u1edbi m\u00e1y c\u00e1n, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o d\u1ea1ng thanh cho v\u00e0ng ho\u1eb7c b\u1ea1c, t\u1eeb \u0111\u00f3 k\u00e9o th\u00e0nh d\u00e2y. Vi\u1ec7c k\u00e9o d\u00e2y th\u01b0\u1eddng th\u1ef1c hi\u1ec7n v\u1edbi k\u1ec1m v\u00e0 t\u1ea5m k\u00e9o c\u00f3 c\u00e1c l\u1ed7 ti\u00eau chu\u1ea9n. B\u1ea1n h\u00e3y k\u00e9o d\u00e2y l\u1ea7n l\u01b0\u1ee3t qua c\u00e1c l\u1ed7 chu\u1ea9n t\u1eeb to \u0111\u1ebfn nh\u1ecf cho \u0111\u1ebfn khi \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u01b0\u1eddng k\u00ednh mong mu\u1ed1n.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">N\u1ebfu b\u1ea1n mua t\u1ea5m k\u00e9o, c\u1ea7n ch\u1ecdn lo\u1ea1i th\u00e9p ch\u1ea5t l\u01b0\u1ee3ng cao, do trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng c\u00e1c l\u1ed7 b\u1ecb m\u00f2n v\u00e0 m\u1edf r\u1ed9ng l\u00e0m gi\u1ea3m \u0111\u1ed9 ch\u00ednh x\u00e1c. \u0110\u1ed9 ch\u00eanh l\u1ec7ch k\u00edch c\u1ee1 gi\u1eefa hai l\u1ed7 k\u1ebf nhau ph\u1ea3i kh\u00f4ng qu\u00e1 l\u1edbn ho\u1eb7c qu\u00e1 nh\u1ecf. N\u1ebfu \u0111\u1ed9 ch\u00eanh l\u1ec7ch qu\u00e1 l\u1edbn, d\u00e2y c\u00f3 th\u1ec3 b\u1ecb g\u00e3y, n\u1ebfu qu\u00e1 nh\u1ecf, b\u1ea1n c\u00f3 th\u1ec3 t\u1ed1n nhi\u1ec1u th\u1eddi gian. B\u1ea1n c\u1ea7n \u1ee7 d\u00e2y sau l\u1ea7n k\u00e9o th\u1ee9 n\u0103m ho\u1eb7c th\u1ee9 s\u00e1u, tr\u01b0\u1edbc khi k\u00e9o b\u1ea1n n\u00ean b\u00f4i s\u00e1p l\u00ean b\u1ec1 m\u1eb7t d\u00e2y \u0111\u1ec3 gi\u1ea3m ma s\u00e1t.<\/span><\/p>\n<div id=\"attachment_3913\" style=\"width: 497px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3913\" class=\"wp-image-3913 \" src=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-content\/uploads\/2021\/05\/C%C3%81C-K%E1%BB%B8-THU%E1%BA%ACT-C%C6%A0-B%E1%BA%A2N-TRONG-GIA-C%C3%94NG-KIM-HO%C3%80N-PH%E1%BA%A6N-1-3.jpg\" alt=\"\" width=\"487\" height=\"124\"><p id=\"caption-attachment-3913\" class=\"wp-caption-text\"><span style=\"color: #000000;\">M\u00e1y k\u00e9o<\/span><\/p><\/div>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Tao_ong\"><\/span><span style=\"color: #000000;\">T\u1ea1o \u1ed1ng<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">\u1ed0ng l\u00e0 h\u00ecnh d\u1ea1ng quan tr\u1ecdng do d\u00e2y l\u00e0 th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n trong nhi\u1ec1u ki\u1ec3u n\u1eef trang, ch\u1eb3ng h\u1ea1n b\u1ea3n l\u1ec1, c\u1ea9n \u0111\u00e1 qu\u00fd\u2026 Do c\u00e1c \u1ed1ng \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb kim lo\u1ea1i t\u1ea5m, b\u1ea1n c\u1ea7n n\u1eafm v\u1eefng k\u1ef9 thu\u1eadt h\u00e0n. Vi\u1ec7c t\u1ea1o \u1ed1ng t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n, c\u1ea7n c\u00f3 khu\u00f4n v\u1edbi c\u00e1c r\u00e3nh th\u00edch h\u1ee3p v\u00e0 c\u00e1c lo\u1ea1i b\u00faa \u0111\u1ea7u nh\u1ecdn, \u0111\u1ea7u tr\u00f2n, v\u00e0 b\u00faa \u0111\u1ea7u g\u1ed7 ho\u1eb7c cao su. M\u1eb7t b\u00faa ph\u1ea3i c\u00f3 \u0111\u1ed9 b\u00f3ng th\u00edch h\u1ee3p, tr\u00e1nh \u0111\u1ec3 l\u1ea1i c\u00e1c v\u1ebft x\u01b0\u1edbc tr\u00ean th\u00e0nh \u1ed1ng.<\/span><\/p>\n<div id=\"attachment_3915\" style=\"width: 408px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3915\" class=\"wp-image-3915\" src=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-content\/uploads\/2021\/05\/C%C3%81C-K%E1%BB%B8-THU%E1%BA%ACT-C%C6%A0-B%E1%BA%A2N-TRONG-GIA-C%C3%94NG-KIM-HO%C3%80N-PH%E1%BA%A6N-1-5.jpg\" alt=\"\" width=\"398\" height=\"241\"><p id=\"caption-attachment-3915\" class=\"wp-caption-text\">C\u00e1c lo\u1ea1i b\u00faa th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<\/p><\/div>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Cong_thuc_cat_tam_kim_loai\"><\/span><span style=\"color: #000000;\">C\u00f4ng th\u1ee9c c\u1eaft t\u1ea5m kim lo\u1ea1i<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">\u0110\u1ec3 c\u1eaft t\u1ea5m kim lo\u1ea1i h\u00ecnh ch\u1eef nh\u1eadt m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c, b\u1ea1n c\u1ea7n bi\u1ebft chi\u1ec1u r\u1ed9ng \u0111\u1ee7 cho \u0111\u01b0\u1eddng k\u00ednh \u1ed1ng. B\u1ea1n h\u00e3y d\u00f9ng c\u00f4ng th\u1ee9c d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 t\u00ednh chi\u1ec1u r\u1ed9ng t\u1ea5m khi bi\u1ebft \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i:<\/span><\/p>\n<blockquote>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">\u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i \u2013 chi\u1ec1u d\u00e0y t\u1ea5m x 3.14 = chi\u1ec1u r\u1ed9ng t\u1ea5m c\u1ea7n c\u1eaft<\/span><\/p>\n<\/blockquote>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">N\u1ebfu ch\u1ec9 bi\u1ebft \u0111\u01b0\u1eddng k\u00ednh trong, khi c\u1ea7n l\u1eafp d\u00e2y b\u00ean trong \u1ed1ng, b\u1ea1n h\u00e3y d\u00f9ng c\u00f4ng th\u1ee9c:<\/span><\/p>\n<blockquote>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">\u0110\u01b0\u1eddng k\u00ednh trong + chi\u1ec1u d\u00e0y t\u1ea5m x 3.14 = chi\u1ec1u r\u1ed9ng t\u1ea5m c\u1ea7n c\u1eaft<\/span><\/p>\n<\/blockquote>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Phuong_phap_tao_ong\"><\/span><span style=\"color: #000000;\">Ph\u01b0\u01a1ng ph\u00e1p t\u1ea1o \u1ed1ng<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Sau khi \u1ee7 t\u1ea5m kim lo\u1ea1i, b\u1ea1n h\u00e3y d\u00f9ng kh\u1ed1i t\u1ea1o h\u00ecnh, g\u00f5 b\u00faa d\u1ecdc theo m\u1eb7t trong c\u1ee7a t\u1ea5m, t\u1ea1o h\u00ecnh m\u1ed9t c\u00e1ch \u0111\u1ed3ng nh\u1ea5t, c\u1ea7m b\u00faa \u1edf cu\u1ed1i c\u00e1n b\u00faa v\u00e0 g\u00f5 d\u1ecdc theo chi\u1ec1u d\u00e0i t\u1ea5m, t\u1ea5m s\u1ebd t\u1eeb t\u1eeb u\u1ed1n cong t\u1ea1o th\u00e0nh h\u00ecnh ch\u1eef U.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">C\u00e1c m\u00e9p tr\u00f2n c\u1ee7a \u0111\u1ea7u b\u00faa l\u00e0 r\u1ea5t quan tr\u1ecdng, m\u1eb7t b\u00faa h\u01a1i l\u1ed3i v\u00e0 kh\u00f4ng c\u00f3 m\u00e9p s\u1eafc \u0111\u1ec3 tr\u00e1nh c\u00e1c v\u1ebft x\u01b0\u1edbc tr\u00ean b\u1ec1 m\u1eb7t t\u1ea5m kim lo\u1ea1i. B\u1ea1n h\u00e3y gh\u00e9p m\u1eb7t d\u1ecdc theo chi\u1ec1u d\u00e0i t\u1ea5m kim lo\u1ea1i \u0111\u1ec3 t\u1ea1o \u1ed1ng, k\u00e9o \u1ed1ng n\u00e0y qua m\u1ed9t ho\u1eb7c hai l\u1ed7 c\u1ee7a t\u1ea5m k\u00e9o d\u00e2y \u0111\u1ec3 t\u1ea1o h\u00ecnh tr\u00f2n cho \u1ed1ng. Sau khi t\u1ea1o h\u00ecnh b\u1ea1n h\u00e3y \u1ee7 v\u00e0 l\u00e0m s\u1ea1ch b\u1ec1 m\u1eb7t \u1ed1ng. \u0110i\u1ec1u n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c \u1ed1ng l\u1edbn. Sau khi \u1ee7 \u1ed1ng c\u00f3 th\u1ec3 b\u1ecb h\u1edf m\u00ed, b\u1ea1n ph\u1ea3i d\u00f9ng b\u00faa g\u00f5 nh\u1eb9 ph\u00eda ngo\u00e0i v\u00e0 k\u00e9o \u1ed1ng qua l\u1ed7 c\u1ee7a t\u1ea5m k\u00e9o. \u0110\u1eb7t \u1ed1ng th\u00edch h\u1ee3p v\u00e0 h\u00e0n d\u1ecdc theo m\u00ed. Sau khi h\u00e0n, b\u1ea1n h\u00e3y gi\u0169a s\u1ea1ch d\u1ecdc theo \u0111\u01b0\u1eddng h\u00e0n v\u00e0 k\u00e9o \u1ed1ng nh\u01b0 khi k\u00e9o d\u00e2y.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><\/p>\n<div id=\"attachment_3914\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3914\" class=\"wp-image-3914 \" src=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-content\/uploads\/2021\/05\/C%C3%81C-K%E1%BB%B8-THU%E1%BA%ACT-C%C6%A0-B%E1%BA%A2N-TRONG-GIA-C%C3%94NG-KIM-HO%C3%80N-PH%E1%BA%A6N-1-6.jpg\" alt=\"\" width=\"350\" height=\"496\"><p id=\"caption-attachment-3914\" class=\"wp-caption-text\"><span style=\"color: #000000;\">T\u1ea1o h\u00ecnh \u1ed1ng<\/span><\/p><\/div>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Uon_cong_ong\"><\/span><span style=\"color: #000000;\">U\u1ed1n cong \u1ed1ng<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p ph\u1ea3i u\u1ed1n \u1ed1ng th\u00e0nh h\u00ecnh tr\u00f2n ho\u1eb7c oval. Khi u\u1ed1n, \u1ed1ng ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ed5 \u0111\u1ea7y lo\u1ea1i b\u1ed9t th\u00edch h\u1ee3p \u0111\u1ec3 tr\u00e1nh m\u00f3p l\u1ed1p. B\u1ed9t th\u00f4ng d\u1ee5ng l\u00e0 ch\u1ea5t d\u1ebbo ho\u1eb7c th\u1ea1ch cao c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p su\u1ea5t. V\u1edbi b\u1ea1c, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u1ed9t nh\u00f4m, nh\u01b0ng ph\u1ea3i h\u1ebft s\u1ee9c c\u1ea9n th\u1eadn khi th\u00e1o b\u1ed9t ra, do nh\u00f4m c\u00f3 th\u1ec3 \u0103n m\u00f2n b\u1ea1c \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">B\u1ed9t \u0111\u1ed3ng \u0111\u01b0\u1ee3c d\u00f9ng v\u1edbi \u1ed1ng v\u00e0ng, do \u0111\u1ed3ng d\u1ec5 h\u00f2a tan trong acid nitric. Tuy nhi\u00ean, khi u\u1ed1n \u1ed1ng c\u1ea7n ph\u1ea3i c\u00f3 s\u1ef1 th\u00f4ng gi\u00f3 t\u1ed1t, c\u00f4ng nh\u00e2n ph\u1ea3i s\u1eed d\u1ee5ng gang tay v\u00e0 k\u00ednh b\u1ea3o h\u1ed9, r\u1eeda s\u1ea1ch acid b\u1eb1ng n\u01b0\u1edbc.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Nhan_can_da_don_gian\"><\/span><span style=\"color: #000000;\">Nh\u1eabn c\u1ea9n \u0111\u00e1 \u0111\u01a1n gi\u1ea3n<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Hi\u1ec3u bi\u1ebft v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c hi\u1ec7n v\u00e0 s\u1eed d\u1ee5ng c\u00e1c ph\u1ed1i h\u1ee3p nhi\u1ec1u h\u00ecnh d\u1ea1ng c\u01a1 b\u1ea3n kh\u00e1c nhau l\u00e0 y\u00eau c\u1ea7u ch\u00ednh trong ng\u00e0nh kim ho\u00e0n. Ph\u1ea7n tr\u01b0\u1edbc \u0111\u00e3 tr\u00ecnh b\u00e0y c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ch\u1ebf t\u00e1c c\u00e1c h\u00ecnh d\u1ea1ng c\u01a1 b\u1ea3n, t\u1ea5m, d\u00e2y v\u00e0 \u1ed1ng, s\u1eed d\u1ee5ng c\u00e1c kh\u1ed1i kim lo\u1ea1i t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn. \u1ede \u0111\u00e2y s\u1ebd tr\u00ecnh b\u00e0y ph\u01b0\u01a1ng ph\u00e1p ch\u1ebf t\u1ea1o c\u00e1c h\u00ecnh d\u1ea1ng c\u01a1 b\u1ea3n v\u1edbi k\u00edch th\u01b0\u1edbc nh\u1ecf.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">B\u1ea1n \u0111\u00e3 bi\u1ebft ph\u01b0\u01a1ng ph\u00e1p ch\u1ebf t\u1ea1o nh\u1eabn b\u1eb1ng \u1ed1ng r\u1ed7ng. N\u1ebfu nung n\u00f3ng \u1ed1ng k\u00edn, kh\u00f4ng kh\u00ed b\u00ean trong s\u1ebd gi\u00e3n n\u1edf, c\u00f3 th\u1ec3 tho\u00e1t ra ngo\u00e0i v\u00e0 g\u00e2y ra s\u1ef1 r\u1ea1n n\u1ee9t. \u0110\u1ec3 tr\u00e1nh \u0111i\u1ec1u n\u00e0y, tr\u00ean nh\u1eabn ph\u1ea3i c\u00f3 l\u1ed7 nh\u1ecf \u0111\u1ec3 tho\u00e1t kh\u00ed, sau khi ho\u00e0n t\u1ea5t s\u1ea3n ph\u1ea9m b\u1ea1n c\u00f3 th\u1ec3 b\u1ecbt k\u00edn l\u1ed7 l\u1ea1i.<\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\"><em>Ngu\u1ed3n: K\u1ef9 thu\u1eadt gia c\u00f4ng kim ho\u00e0n &amp; S\u01b0u t\u1ea7m<\/em><\/span><\/p>\n<p><span style=\"color: #000000;\">Nh\u1eefng b\u00e0i vi\u1ebft li\u00ean quan:<\/span><\/p>\n<p><a class=\"hnsa-a-tag\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-2\/\">C\u00c1C K\u1ef8 THU\u1eacT C\u01a0 B\u1ea2N TRONG GIA C\u00d4NG KIM HO\u00c0N - PH\u1ea6N 2<\/a><\/p>\n<p><a class=\"hnsa-a-tag\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-3\/\">C\u00c1C K\u1ef8 THU\u1eacT C\u01a0 B\u1ea2N TRONG GIA C\u00d4NG KIM HO\u00c0N - PH\u1ea6N 3<\/a><\/p>\n<p><a class=\"hnsa-a-tag\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-4\/\">C\u00c1C K\u1ef8 THU\u1eacT C\u01a0 B\u1ea2N TRONG GIA C\u00d4NG KIM HO\u00c0N - PH\u1ea6N 4<\/a><\/p>\n<p><a class=\"hnsa-a-tag\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-5\/\">C\u00c1C K\u1ef8 THU\u1eacT C\u01a0 B\u1ea2N TRONG GIA C\u00d4NG KIM HO\u00c0N - PH\u1ea6N 5<\/a><\/p>\n<p><a class=\"hnsa-a-tag\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-6\/\">C\u00c1C K\u1ef8 THU\u1eacT C\u01a0 B\u1ea2N TRONG GIA C\u00d4NG KIM HO\u00c0N - PH\u1ea6N 6<\/a><\/p>\n<p><a class=\"hnsa-a-tag\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-7\/\">C\u00c1C K\u1ef8 THU\u1eacT C\u01a0 B\u1ea2N TRONG GIA C\u00d4NG KIM HO\u00c0N - PH\u1ea6N 7<\/a><\/p>\n<p><a class=\"hnsa-a-tag\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-8\/\">C\u00c1C K\u1ef8 THU\u1eacT C\u01a0 B\u1ea2N TRONG GIA C\u00d4NG KIM HO\u00c0N - PH\u1ea6N 8<\/a><\/p>\n<p><a class=\"hnsa-a-tag\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-9\/\">C\u00c1C K\u1ef8 THU\u1eacT C\u01a0 B\u1ea2N TRONG GIA C\u00d4NG KIM HO\u00c0N - PH\u1ea6N 9<\/a><\/p>\n<p><a class=\"hnsa-a-tag\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-10\/\">C\u00c1C K\u1ef8 THU\u1eacT C\u01a0 B\u1ea2N TRONG GIA C\u00d4NG KIM HO\u00c0N - PH\u1ea6N 10<\/a><\/p>\n<div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Khi b\u1ea1n n\u1eafm v\u1eefng c\u00e1c nguy\u00ean l\u00fd c\u01a1 b\u1ea3n v\u1ec1 h\u1ee3p kim v\u00e0 h\u1ee3p kim h\u00f3a, b\u1ea1n c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u c\u00e1c qu\u00e1 tr\u00ecnh gia c\u00f4ng, nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c k\u1ef9 n\u0103ng v\u00e0 n\u00e2ng cao tay ngh\u1ec1 trong ng\u00e0nh kim&#8230;<\/p>\n","protected":false},"author":4,"featured_media":3922,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[63,61],"tags":[],"yst_prominent_words":[],"class_list":["post-3910","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chia-se-kien-thuc","category-kien-thuc-kim-hoan"],"_links":{"self":[{"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/posts\/3910","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/comments?post=3910"}],"version-history":[{"count":18,"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/posts\/3910\/revisions"}],"predecessor-version":[{"id":4451,"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/posts\/3910\/revisions\/4451"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/media\/3922"}],"wp:attachment":[{"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/media?parent=3910"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/categories?post=3910"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/tags?post=3910"},{"taxonomy":"yst_prominent_words","embeddable":true,"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/yst_prominent_words?post=3910"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}