{"id":3961,"date":"2021-05-28T14:03:35","date_gmt":"2021-05-28T14:03:35","guid":{"rendered":"http:\/\/trangdoan.vn\/kythuatkimhoan\/?p=3961"},"modified":"2021-09-07T09:28:39","modified_gmt":"2021-09-07T09:28:39","slug":"cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-4","status":"publish","type":"post","link":"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-4\/","title":{"rendered":"C\u00c1C K\u1ef8 THU\u1eacT C\u01a0 B\u1ea2N TRONG GIA C\u00d4NG KIM HO\u00c0N &#8211; PH\u1ea6N 4"},"content":{"rendered":"<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-6a2aa3accdb54\" 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-6a2aa3accdb54\"  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-4\/#HAN\" >H\u00c0N<\/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-4\/#Quy_trinh\" >Quy tr\u00ecnh<\/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-4\/#Mo_dot_bang_gas\" >M\u1ecf \u0111\u1ed1t b\u1eb1ng gas<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><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-4\/#Khoi_va_tam_chiu_nhiet\" >Kh\u1ed1i v\u00e0 t\u1ea5m ch\u1ecbu nhi\u1ec7t<\/a><\/li><li class='ez-toc-page-1 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-4\/#Chat_tro_dung_han\" >Ch\u1ea5t tr\u1ee3 dung h\u00e0n<\/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-4\/#Mo_dot_gas\" >M\u1ecf \u0111\u1ed1t gas<\/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-4\/#Ung_dung\" >\u1ee8ng d\u1ee5ng<\/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-4\/#Loai_bo_lop_oxide\" >Lo\u1ea1i b\u1ecf l\u1edbp oxide<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/trangdoan.vn\/kythuatkimhoan\/cac-ky-thuat-co-ban-trong-gia-cong-kim-hoan-phan-4\/#Acid_da_qua_su_dung\" >Acid \u0111\u00e3 qua s\u1eed d\u1ee5ng<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"HAN\"><\/span>H\u00c0N<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p style=\"text-align: justify;\">H\u00e0n th\u01b0\u1eddng d\u00f9ng \u0111\u1ec3 li\u00ean k\u1ebft kim lo\u1ea1i v\u1edbi nhau, t\u1eadn d\u1ee5ng s\u1ef1 t\u01b0\u01a1ng t\u00e1c c\u1ea5u tr\u00fac c\u1ee7a c\u00e1c kim lo\u1ea1i khi \u0111\u01b0\u1ee3c nung n\u00f3ng, l\u00e0 m\u1ed9t kh\u00e2u h\u1ebft s\u1ee9c quan tr\u1ecdng trong c\u00e1c c\u00f4ng \u0111o\u1ea1n ch\u1ebf t\u00e1c trang s\u1ee9c. Khi kim lo\u1ea1i n\u00f3ng ch\u1ea3y, c\u1ea5u tr\u00fac tinh th\u1ec3 b\u1ecb ph\u00e1 h\u1ee7y, kim lo\u1ea1i kh\u00f4ng th\u1ec3 duy tr\u00ec h\u00ecnh d\u1ea1ng ban \u0111\u1ea7u. Kim lo\u1ea1i h\u00e0n s\u1ebd ng\u1ea5m s\u00e2u v\u00e0o kim lo\u1ea1i \u0111\u01b0\u1ee3c h\u00e0n, t\u1ea1o th\u00e0nh m\u1ed1i li\u00ean k\u1ebft b\u1ec1n v\u1eefng.<\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Quy_trinh\"><\/span>Quy tr\u00ecnh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Trong quy tr\u00ecnh h\u00e0n, kim lo\u1ea1i h\u00e0n v\u00e0 nhi\u1ec7t t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. <em>Kim lo\u1ea1i h\u00e0n<\/em> l\u00e0 h\u1ee3p kim \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 li\u00ean k\u1ebft c\u00e1c kim lo\u1ea1i c\u00f3 nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y cao. Nhi\u1ec7t t\u1eeb m\u1ecf h\u00e0n l\u00e0m n\u00f3ng ch\u1ea3y kim lo\u1ea1i h\u00e0n tr\u01b0\u1edbc khi kim lo\u1ea1i \u0111\u01b0\u1ee3c h\u00e0n n\u00f3ng ch\u1ea3y. Kim lo\u1ea1i h\u00e0n n\u00f3ng ch\u1ea3y s\u1ebd tr\u00e0n l\u00ean b\u1ec1 m\u1eb7t theo l\u1ef1c mao d\u1eabn, cho ph\u00e9p n\u1ed1i k\u1ebft c\u00e1c mi\u1ebfng kim lo\u1ea1i \u0111\u01b0\u1ee3c h\u00e0n v\u1edbi nhau.<\/p>\n<p style=\"text-align: justify;\">B\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 ch\u1ebf t\u1ea1o kim lo\u1ea1i h\u00e0n, v\u00e0 c\u0169ng c\u00f3 th\u1ec3 mua c\u00e1c kim lo\u1ea1i h\u00e0n th\u00edch h\u1ee3p. Khi h\u00e0n c\u00e1c chi ti\u1ebft ph\u1ee9c t\u1ea1p, c\u00f3 th\u1ec3 b\u1ea1n ph\u1ea3i s\u1eed d\u1ee5ng ba ho\u1eb7c b\u1ed1n kim lo\u1ea1i h\u00e0n c\u00f3 nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y kh\u00e1c nhau. Kim lo\u1ea1i h\u00e0n c\u1ee9ng c\u00f3 nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y cao h\u01a1n kim lo\u1ea1i h\u00e0n trung b\u00ecnh ho\u1eb7c m\u1ec1m. Kim lo\u1ea1i h\u00e0n th\u01b0\u1eddng \u0111\u01b0\u1ee3c cung c\u1ea5p \u1edf d\u1ea1ng d\u00e2y ho\u1eb7c cu\u1ed9n. Kim lo\u1ea1i h\u00e0n hi\u1ec7n nay th\u01b0\u1eddng c\u00f3 s\u1eb5n thu\u1ed1c h\u00e0n b\u00ean trong l\u00f5i cho ph\u00e9p s\u1eed d\u1ee5ng d\u1ec5 d\u00e0ng h\u01a1n.<\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Mo_dot_bang_gas\"><\/span>M\u1ecf \u0111\u1ed1t b\u1eb1ng gas<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Kim lo\u1ea1i h\u00e0n ph\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u01b0\u01a1ng \u1ee9ng v\u1edbi kim lo\u1ea1i \u0111\u01b0\u1ee3c h\u00e0n. Ngo\u00e0i ra b\u1ea1n c\u1ea7n bi\u1ebft v\u1ec1 thi\u1ebft b\u1ecb v\u00e0 ph\u1ee5 t\u00f9ng \u0111\u01b0\u1ee3c d\u00f9ng khi h\u00e0n l\u00e0 m\u1ecf \u0111\u1ed1t b\u1eb1ng gas.<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Khoi_va_tam_chiu_nhiet\"><\/span>Kh\u1ed1i v\u00e0 t\u1ea5m ch\u1ecbu nhi\u1ec7t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">C\u00f3 nhi\u1ec1u lo\u1ea1i kh\u1ed1i v\u00e0 t\u1ea5m ch\u1ecbu nhi\u1ec7t khi h\u00e0n, ch\u1eb3ng h\u1ea1n kh\u1ed1i s\u1ee3i g\u1ed1m, khung l\u01b0\u1edbi kim lo\u1ea1i, t\u1ea5m xoay, t\u1ea5m \u0111\u1ee1 b\u1eb1ng v\u1eadt li\u1ec7u ch\u1ecbu l\u1eeda.<\/p>\n<div id=\"attachment_1452\" style=\"width: 242px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1452\" class=\"wp-image-1452 size-full\" 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-34.jpg\" alt=\"\" width=\"232\" height=\"134\"><p id=\"caption-attachment-1452\" class=\"wp-caption-text\">M\u1ecf h\u00e0n, kh\u1ed1i v\u00e0 t\u1ea5m ch\u1ecbu nhi\u1ec7t khi h\u00e0n<\/p><\/div>\n<p style=\"text-align: justify;\">Khung l\u01b0\u1edbi kim lo\u1ea1i cho ph\u00e9p ph\u00e2n ph\u1ed1i nhi\u1ec7t \u0111\u1ed3ng \u0111\u1ec1u khi h\u00e0n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 h\u00e0n c\u00e1c m\u1ed1i h\u00e0n l\u1edbn. Kh\u1ed1i ch\u1ecbu nhi\u1ec7t b\u1eb1ng than \u0111\u00e1 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng do \u00edt g\u00e2y ra s\u1ef1 oxy h\u00f3a, ph\u00e2n b\u1ed1 v\u00e0 duy tr\u00ec nhi\u1ec7t m\u1ed9t c\u00e1ch \u0111\u1ed3ng \u0111\u1ec1u.<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Chat_tro_dung_han\"><\/span>Ch\u1ea5t tr\u1ee3 dung h\u00e0n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">Vi\u1ec7c s\u1eed d\u1ee5ng ch\u1ea5t tr\u1ee3 dung h\u00e0n l\u00e0 r\u1ea5t quan tr\u1ecdng, do qu\u00e1 tr\u00ecnh h\u00e0n t\u1ea1o ra l\u1edbp oxy h\u00f3a b\u1ec1 m\u1eb7t l\u00e0m gi\u1ea3m \u0111\u1ed9 li\u00ean k\u1ebft m\u1ed1i h\u00e0n.<\/p>\n<p style=\"text-align: justify;\">Ch\u1ea5t tr\u1ee3 dung ph\u1ed5 bi\u1ebfn l\u00e0 h\u1ed7n h\u1ee3p h\u00e0n the v\u00e0 n\u01b0\u1edbc. Acid boric c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c b\u1ed5 sung v\u00e0o h\u1ed7n h\u1ee3p \u0111\u1ec3 t\u0103ng nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y. H\u00e0n the c\u00f3 m\u1ed9t nh\u01b0\u1ee3c \u0111i\u1ec3m, khi \u0111\u01b0\u1ee3c nung n\u00f3ng c\u00f3 th\u1ec3 t\u1ea1o b\u1ecdt kh\u00ed l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng m\u1ed1i h\u00e0n. H\u1ed7n h\u1ee3p h\u00e0n the v\u00e0 n\u01b0\u1edbc \u0111\u01b0\u1ee3c qu\u00e9t c\u1ea3 hai ph\u00eda \u0111\u01b0\u1eddng h\u00e0n sau khi kh\u1eed s\u1ea1ch oxide.<\/p>\n<div id=\"attachment_1453\" style=\"width: 158px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1453\" class=\"size-full wp-image-1453\" 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-35.jpg\" alt=\"\" width=\"148\" height=\"178\"><p id=\"caption-attachment-1453\" class=\"wp-caption-text\">Ch\u1ea5t tr\u1ee3 dung l\u1ecfng v\u00e0 thanh h\u00e0n the b\u1ed9t, khi h\u00f2a tan trong n\u01b0\u1edbc s\u1ebd l\u00e0m t\u0103ng s\u1ef1 tan ch\u1ea3y c\u1ee7a kim lo\u1ea1i h\u00e0n.<\/p><\/div>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Mo_dot_gas\"><\/span>M\u1ecf \u0111\u1ed1t gas<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">M\u1ecf \u0111\u1ed1t gas \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 nung n\u00f3ng kim lo\u1ea1i sao cho kim lo\u1ea1i h\u00e0n \u0111\u1ea1t \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y b\u1eb1ng nhi\u1ec7t gi\u00e1n ti\u1ebfp. M\u1ecf \u0111\u1ed1t c\u00f2n \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 \u1ee7 kim lo\u1ea1i. M\u1ecf \u0111\u1ed1t chuy\u00ean d\u00f9ng th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c kh\u00ed \u0111\u1ed1t nh\u01b0 butane, propane, c\u1ed9ng v\u1edbi kh\u00f4ng kh\u00ed n\u00e9n \u0111\u01b0\u1ee3c cung c\u1ea5p t\u1eeb m\u00e1y n\u00e9n.<\/p>\n<p style=\"text-align: justify;\">M\u1ecf \u0111\u1ed1t d\u00f9ng propane \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong x\u01b0\u1edfng kim ho\u00e0n, kh\u00ed n\u00e9n \u0111\u01b0\u1ee3c cung c\u1ea5p t\u1eeb m\u00e1y n\u00e9n kh\u00ed c\u00f3 \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n.<\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Ung_dung\"><\/span>\u1ee8ng d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Tr\u01b0\u1edbc khi h\u00e0n b\u1ea1n c\u1ea7n l\u00e0m s\u1ea1ch d\u1ea7u m\u1ee1 v\u00e0 l\u1edbp oxide tr\u00ean b\u1ec1 m\u1eb7t kim lo\u1ea1i b\u1eb1ng c\u00e1ch r\u1eeda trong dung d\u1ecbch acid, sau \u0111\u00f3 r\u1eeda l\u1ea1i b\u1eb1ng n\u01b0\u1edbc.<\/p>\n<p style=\"text-align: justify;\">\u0110\u1ec3 t\u1ea1o \u0111\u01b0\u1eddng h\u00e0n ch\u1ea5t l\u01b0\u1ee3ng cao, b\u1ea1n ch\u1ec9 n\u00ean d\u00f9ng l\u01b0\u1ee3ng kim lo\u1ea1i h\u00e0n v\u1eeba \u0111\u1ee7. \u0110\u1ec3 h\u00e0n \u0111\u1ea1t y\u00eau c\u1ea7u, b\u1ea1n c\u1ea7n c\u00f3 k\u1ef9 n\u0103ng v\u00e0 kh\u00e9o tay. Kim lo\u1ea1i h\u00e0n n\u00f3ng ch\u1ea3y th\u01b0\u1eddng ch\u1ea3y theo h\u01b0\u1edbng c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao, lu\u00f4n lu\u00f4n \u0111\u1ebfn \u0111i\u1ec3m n\u00f3ng nh\u1ea5t, do \u0111\u00f3 \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i c\u1ea5p nhi\u1ec7t \u0111\u1ed3ng \u0111\u1ec1u cho to\u00e0n b\u1ed9 kim lo\u1ea1i \u0111\u01b0\u1ee3c h\u00e0n. N\u1ebfu b\u1ea1n ch\u1ec9 c\u1ea5p nhi\u1ec7t cho kim lo\u1ea1i h\u00e0n m\u00e0 kh\u00f4ng c\u1ea5p nhi\u1ec7t cho kim lo\u1ea1i \u0111\u01b0\u1ee3c h\u00e0n, kim lo\u1ea1i h\u00e0n s\u1ebd n\u00f3ng ch\u1ea3y t\u1ea1o th\u00e0nh c\u00e1c gi\u1ecdt h\u00ecnh c\u1ea7u kh\u00f4ng ng\u1ea5m v\u00e0o \u0111\u01b0\u1eddng h\u00e0n. B\u1ea1n c\u1ea7n c\u1ea5p nhi\u1ec7t \u0111\u1ed3ng \u0111\u1ec1u cho c\u1ea3 hai mi\u1ebfng kim lo\u1ea1i \u0111\u01b0\u1ee3c h\u00e0n. Ph\u00eda n\u00f3ng h\u01a1n s\u1ebd thu h\u00fat nhi\u1ec1u kim lo\u1ea1i h\u00e0n h\u01a1n do \u0111\u00f3 m\u1ed1i h\u00e0n s\u1ebd x\u1ea5u ho\u1eb7c kh\u00f4ng d\u00ednh.<\/p>\n<p style=\"text-align: justify;\">N\u00f3i chung, trong x\u01b0\u1edfng th\u01b0\u1eddng d\u00f9ng 3 lo\u1ea1i kim lo\u1ea1i h\u00e0n v\u1edbi nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y kh\u00e1c nhau. M\u1ed1i h\u00e0n th\u1ee9 nh\u1ea5t th\u01b0\u1eddng s\u1eed d\u1ee5ng kim lo\u1ea1i h\u00e0n c\u1ee9ng c\u00f3 nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y cao nh\u1ea5t. M\u1ed1i h\u00e0n th\u1ee9 hai th\u01b0\u1eddng d\u00f9ng kim lo\u1ea1i h\u00e0n c\u00f3 nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y th\u1ea5p h\u01a1n,\u2026<\/p>\n<blockquote>\n<p style=\"text-align: justify;\"><strong>An to\u00e0n<\/strong><\/p>\n<p style=\"text-align: justify;\">M\u1ecdi m\u1ecf h\u00e0n \u0111\u1ec1u s\u1eed d\u1ee5ng lo\u1ea1i gas th\u00edch h\u1ee3p, th\u01b0\u1eddng k\u00e8m theo \u1ed1ng d\u1eabn gas. B\u1ea1n c\u1ea7n thay \u1ed1ng d\u1eabn gas khi c\u00f3 d\u1ea5u hi\u1ec7u r\u1ea1n n\u1ee9t ho\u1eb7c h\u01b0 h\u1ea1i. M\u1ecf h\u00e0n \u0111\u01b0\u1ee3c trang b\u1ecb b\u1ed9 l\u1ecdc, b\u1ed9 ch\u1ed1ng ch\u00e1y ng\u01b0\u1ee3c, c\u00e1c van v\u00e0 c\u00e1c thi\u1ebft b\u1ecb an to\u00e0n kh\u00e1c. N\u01a1i l\u00e0m vi\u1ec7c c\u1ee7a b\u1ea1n ph\u1ea3i \u0111\u01b0\u1ee3c th\u00f4ng gi\u00f3 \u0111\u1ea7y \u0111\u1ee7. Theo quy \u0111\u1ecbnh m\u1edbi b\u1ea1n kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng kh\u1ed1i ch\u1ecbu nhi\u1ec7t c\u00f3 ch\u1ee9a amiant, do \u0111\u00e2y l\u00e0 ch\u1ea5t \u0111\u1ed9c g\u00e2y ra c\u00e1c b\u1ec7nh v\u1ec1 ph\u1ed5i v\u00e0 \u0111\u01b0\u1eddng h\u00f4 h\u1ea5p.<\/p>\n<\/blockquote>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Loai_bo_lop_oxide\"><\/span>Lo\u1ea1i b\u1ecf l\u1edbp oxide<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Sau khi \u0111\u1ec3 ngu\u1ed9i, b\u1ea1n c\u1ea7n lo\u1ea1i b\u1ecf l\u1edbp oxide b\u1ec1 m\u1eb7t b\u1eb1ng dung d\u1ecbch acid th\u00edch h\u1ee3p, sau \u0111\u00f3 r\u1eeda l\u1ea1i b\u1eb1ng n\u01b0\u1edbc. B\u1ea1n n\u00ean \u0111\u1ec3 kh\u00f4 \u1edf n\u01a1i tho\u00e1ng gi\u00f3 tr\u01b0\u1edbc khi ti\u1ebfp t\u1ee5c gia c\u00f4ng.<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Acid_da_qua_su_dung\"><\/span>Acid \u0111\u00e3 qua s\u1eed d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">Dung d\u1ecbch acid c\u0169 ho\u1eb7c \u0111\u00e3 qua s\u1eed d\u1ee5ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1eadn d\u1ee5ng l\u00e0m dung d\u1ecbch m\u1ea1 \u0111\u1ed3ng, do acid n\u00e0y b\u00e3o h\u00f2a v\u1edbi c\u00e1c ion t\u1ef1 do. B\u1ea1n c\u1ea7n trung h\u00f2a acid \u0111\u00e3 qua s\u1eed d\u1ee5ng b\u1eb1ng dung d\u1ecbch ki\u1ec1m th\u00edch h\u1ee3p tr\u01b0\u1edbc khi lo\u1ea1i b\u1ecf ch\u00fang.<\/p>\n<p style=\"text-align: right;\"><em>Ngu\u1ed3n: K\u1ef9 thu\u1eadt gia c\u00f4ng kim ho\u00e0n<\/em><\/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-1\/\">C\u00c1C K\u1ef8 THU\u1eacT C\u01a0 B\u1ea2N TRONG GIA C\u00d4NG KIM HO\u00c0N - PH\u1ea6N 1<\/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-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-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","protected":false},"excerpt":{"rendered":"<p>H\u00c0N H\u00e0n th\u01b0\u1eddng d\u00f9ng \u0111\u1ec3 li\u00ean k\u1ebft kim lo\u1ea1i v\u1edbi nhau, t\u1eadn d\u1ee5ng s\u1ef1 t\u01b0\u01a1ng t\u00e1c c\u1ea5u tr\u00fac c\u1ee7a c\u00e1c kim lo\u1ea1i khi \u0111\u01b0\u1ee3c nung n\u00f3ng, l\u00e0 m\u1ed9t kh\u00e2u h\u1ebft s\u1ee9c quan tr\u1ecdng trong c\u00e1c c\u00f4ng \u0111o\u1ea1n ch\u1ebf t\u00e1c trang&#8230;<\/p>\n","protected":false},"author":4,"featured_media":3916,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[63,61],"tags":[],"yst_prominent_words":[],"class_list":["post-3961","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\/3961","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=3961"}],"version-history":[{"count":8,"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/posts\/3961\/revisions"}],"predecessor-version":[{"id":4454,"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/posts\/3961\/revisions\/4454"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/media\/3916"}],"wp:attachment":[{"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/media?parent=3961"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/categories?post=3961"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/tags?post=3961"},{"taxonomy":"yst_prominent_words","embeddable":true,"href":"https:\/\/trangdoan.vn\/kythuatkimhoan\/wp-json\/wp\/v2\/yst_prominent_words?post=3961"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}