{"id":10700,"date":"2024-09-20T12:42:00","date_gmt":"2024-09-20T04:42:00","guid":{"rendered":"https:\/\/app11147.cloudwayssites.com\/?p=10700"},"modified":"2024-11-15T17:01:33","modified_gmt":"2024-11-15T09:01:33","slug":"aluminum-vs-stainless-steel","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/stainless-steel\/comparison\/aluminum-vs-stainless-steel\/","title":{"rendered":"Nh\u00f4m so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9: Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 t\u1ed1t h\u01a1n nh\u00f4m kh\u00f4ng?"},"content":{"rendered":"<p>Nh\u00f4m v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 hai v\u1eadt li\u1ec7u kim lo\u1ea1i c\u1ef1c k\u1ef3 quan tr\u1ecdng \u0111\u00e3 th\u00e2m nh\u1eadp v\u00e0o m\u1ecdi kh\u00eda c\u1ea1nh c\u1ee7a cu\u1ed9c s\u1ed1ng v\u00e0 s\u1ea3n xu\u1ea5t. Tuy nhi\u00ean, trong c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3, ch\u00fang ta n\u00ean ch\u1ecdn nh\u00f4m hay th\u00e9p kh\u00f4ng g\u1ec9? \u0110\u1ec3 gi\u00fap b\u1ea1n \u0111\u01b0a ra l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u t\u1ed1t nh\u1ea5t trong c\u00e1c d\u1ef1 \u00e1n th\u1ef1c t\u1ebf, b\u00e0i vi\u1ebft n\u00e0y s\u1ebd so s\u00e1nh s\u00e2u s\u1eafc c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m kh\u00e1c nhau c\u1ee7a nh\u00f4m v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9.<\/p><h2 class=\"wp-block-heading\">Nh\u00f4m hay th\u00e9p kh\u00f4ng g\u1ec9 t\u1ed1t h\u01a1n?<\/h2><p>Th\u1eadt kh\u00f3 \u0111\u1ec3 tr\u1ea3 l\u1eddi. S\u1ef1 l\u1ef1a ch\u1ecdn gi\u1eefa nh\u00f4m v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/p><p>Nh\u00f4m th\u00edch h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng v\u00e0 t\u1ea3n nhi\u1ec7t cao do c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9, d\u1eabn nhi\u1ec7t t\u1ed1t v\u00e0 d\u1ec5 gia c\u00f4ng.&nbsp;<\/p><p>Th\u00e9p kh\u00f4ng g\u1ec9 ph\u00e1t huy t\u00e1c d\u1ee5ng t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n cao, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao nh\u1edd \u0111\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/p><h2 class=\"wp-block-heading\">Nh\u00f4m v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 g\u00ec?<\/h2><h3 class=\"wp-block-heading\">Nh\u00f4m<\/h3><p>Nh\u00f4m l\u00e0 kim lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t trong l\u1edbp v\u1ecf Tr\u00e1i \u0110\u1ea5t, c\u00f3 m\u00e0u tr\u1eafng b\u1ea1c, nh\u1eb9, d\u1ec5 u\u1ed1n, kh\u00f4ng b\u1ecb \u0103n m\u00f2n ho\u1eb7c m\u1ea5t \u0111\u1ed9 b\u00f3ng. Nh\u00f4m ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c chi\u1ebft xu\u1ea5t t\u1eeb qu\u1eb7ng bauxit b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec7n ph\u00e2n. Nh\u00f4m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ee3p kim v\u00e0 \u0111\u1ed3 d\u00f9ng nh\u1eb9, \u0111\u00fac, b\u1ed9 ph\u1eadn m\u00e1y bay, v.v.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9<\/h3><p><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/guide\/\">Th\u00e9p kh\u00f4ng g\u1ec9<\/a>, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 inox, l\u00e0 h\u1ee3p kim g\u1ed1c s\u1eaft c\u00f3 th\u00eam c\u00e1c nguy\u00ean t\u1ed1 nh\u01b0 crom. N\u00f3 ch\u1ee9a 70-80% s\u1eaft v\u00e0 \u00edt nh\u1ea5t 10,5% crom. Crom mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi.<\/p><p>Th\u00e9p kh\u00f4ng g\u1ec9 b\u1ec1n, s\u00e1ng b\u00f3ng, s\u1ea1ch h\u01a1n nh\u00f4m. Th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong x\u00e2y d\u1ef1ng, \u00f4 t\u00f4, thi\u1ebft b\u1ecb y t\u1ebf v\u00e0 \u0111\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp. Th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng \u0111\u01b0\u1ee3c chia th\u00e0nh th\u00e9p kh\u00f4ng g\u1ec9 austenit, ferritic, martensitic v\u00e0 duplex.<\/p><h2 class=\"wp-block-heading\">\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a nh\u00f4m so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9<\/h2><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>V\u1eadt li\u1ec7u<\/td><td>\u01afu \u0111i\u1ec3m<\/td><td>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/td><\/tr><tr><td>Nh\u00f4m<\/td><td>Nh\u1eb9<\/td><td>\u0110\u1ed9 b\u1ec1n th\u1ea5p h\u01a1n so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9<\/td><\/tr><tr><td><\/td><td>Ch\u1ed1ng \u0103n m\u00f2n trong nhi\u1ec1u m\u00f4i tr\u01b0\u1eddng<\/td><td>C\u00f3 th\u1ec3 d\u1ec5 b\u1ecb tr\u1ea7y x\u01b0\u1edbc ho\u1eb7c m\u00f3p h\u01a1n<\/td><\/tr><tr><td><\/td><td>D\u1eabn nhi\u1ec7t v\u00e0 d\u1eabn \u0111i\u1ec7n t\u1ed1t<\/td><td>C\u00f3 th\u1ec3 c\u1ea7n l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t<\/td><\/tr><tr><td><\/td><td>N\u00f3i chung l\u00e0 r\u1ebb h\u01a1n<\/td><td>Kh\u00f4ng b\u1ec1n d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 kh\u1eafc nghi\u1ec7t<\/td><\/tr><tr><td>Th\u00e9p kh\u00f4ng g\u1ec9<\/td><td>\u0110\u1ed9 b\u1ec1n v\u00e0 s\u1ee9c m\u1ea1nh cao<\/td><td>N\u1eb7ng h\u01a1n nh\u00f4m<\/td><\/tr><tr><td><\/td><td>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi<\/td><td>N\u00f3i chung l\u00e0 \u0111\u1eaft h\u01a1n<\/td><\/tr><tr><td><\/td><td>Gi\u1eef nguy\u00ean \u0111\u1ed9 b\u1ec1n \u1edf nhi\u1ec7t \u0111\u1ed9 cao<\/td><td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t v\u00e0 d\u1eabn \u0111i\u1ec7n k\u00e9m h\u01a1n<\/td><\/tr><tr><td><\/td><td>D\u1ec5 d\u00e0ng v\u1ec7 sinh v\u00e0 b\u1ea3o tr\u00ec<\/td><td>C\u00f3 th\u1ec3 d\u1ec5 b\u1ecb tr\u1ea7y x\u01b0\u1edbc n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c ch\u0103m s\u00f3c \u0111\u00fang c\u00e1ch<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">Nh\u00f4m so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9: T\u00ednh ch\u1ea5t v\u1eadt l\u00fd<\/h2><h3 class=\"wp-block-heading\">Tr\u1ecdng l\u01b0\u1ee3ng &amp; M\u1eadt \u0111\u1ed9<\/h3><p>M\u1eadt \u0111\u1ed9 c\u1ee7a nh\u00f4m l\u00e0 kho\u1ea3ng 2,7g\/cm\u00b3, trong khi <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/properties\/density\/\">m\u1eadt \u0111\u1ed9 c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9<\/a> l\u00e0 t\u1eeb 7,9-8,0g\/cm\u00b3. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 n\u1eb7ng g\u1ea5p ba l\u1ea7n nh\u00f4m cho c\u00f9ng m\u1ed9t th\u1ec3 t\u00edch. T\u00ednh ch\u1ea5t nh\u1eb9 c\u1ee7a nh\u00f4m l\u00e0 m\u1ed9t l\u1ee3i th\u1ebf \u0111\u00e1ng k\u1ec3 trong ng\u00e0nh h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, s\u1ea3n xu\u1ea5t \u00f4 t\u00f4 v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c \u0111\u00f2i h\u1ecfi ph\u1ea3i gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng. V\u00ed d\u1ee5, c\u00e1c b\u1ed9 ph\u1eadn k\u1ebft c\u1ea5u m\u00e1y bay v\u00e0 \u00f4 t\u00f4 th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng nh\u00f4m \u0111\u1ec3 gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a ch\u00ednh ch\u00fang, do \u0111\u00f3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t nhi\u00ean li\u1ec7u v\u00e0 gi\u1ea3m chi ph\u00ed v\u1eadn h\u00e0nh.<\/p><h3 class=\"wp-block-heading\">T\u1eeb t\u00ednh<\/h3><p>Nh\u00f4m kh\u00f4ng c\u00f3 t\u1eeb t\u00ednh, \u0111i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 r\u1ea5t h\u1eefu \u00edch trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng c\u1ea7n tr\u00e1nh nhi\u1ec5u t\u1eeb, ch\u1eb3ng h\u1ea1n nh\u01b0 thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed v\u00e0 v\u1eadt li\u1ec7u che ch\u1eafn \u0111i\u1ec7n t\u1eeb. <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/properties\/magnetic\/\">t\u00ednh ch\u1ea5t t\u1eeb t\u00ednh c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9<\/a> thay \u0111\u1ed5i. Th\u00e9p kh\u00f4ng g\u1ec9 Austenitic (nh\u01b0 304 v\u00e0 316) ch\u1ee7 y\u1ebfu l\u00e0 kh\u00f4ng t\u1eeb t\u00ednh, trong khi th\u00e9p kh\u00f4ng g\u1ec9 ferritic v\u00e0 martensitic c\u00f3 t\u1eeb t\u00ednh. Lo\u1ea1i sau c\u00f3 \u01b0u \u0111i\u1ec3m trong c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 h\u1ea5p ph\u1ee5 t\u1eeb t\u00ednh.<\/p><h3 class=\"wp-block-heading\">\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/h3><p>Gi\u00e1 tr\u1ecb \u0111\u1ed9 d\u1eabn nhi\u1ec7t thay \u0111\u1ed5i v\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng. Nh\u00ecn chung, \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng (ch\u1eb3ng h\u1ea1n nh\u01b0 20\u00b0C) l\u00e0 kho\u1ea3ng t\u1eeb 10 \u0111\u1ebfn 30 W\/(m\u00b7K), trong khi \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a nh\u00f4m nguy\u00ean ch\u1ea5t \u1edf 20\u00b0C l\u00e0 kho\u1ea3ng 237 W\/(m\u00b7K).<\/p><p>Nh\u00f4m c\u00f3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t t\u1ed1t h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n t\u1ea3n nhi\u1ec7t nhanh, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ed9 t\u1ea3n nhi\u1ec7t, b\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t v\u00e0 h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed. Do \u0111\u1ed9 d\u1eabn nhi\u1ec7t th\u1ea5p h\u01a1n, th\u00e9p kh\u00f4ng g\u1ec9 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c c\u00e1ch nhi\u1ec7t, ch\u1eb3ng h\u1ea1n nh\u01b0 thi\u1ebft b\u1ecb x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ed9 cao, m\u1ed9t s\u1ed1 lo\u1ea1i \u0111\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp v\u00e0 thi\u1ebft b\u1ecb c\u00e1ch nhi\u1ec7t.<\/p><h3 class=\"wp-block-heading\">\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n<\/h3><p>Nh\u00f4m c\u00f3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n tuy\u1ec7t v\u1eddi, kho\u1ea3ng 61% \u0111\u1ed3ng, v\u00ec v\u1eady th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong d\u00e2y \u0111i\u1ec7n cao th\u1ebf, truy\u1ec1n t\u1ea3i \u0111i\u1ec7n \u0111\u01b0\u1eddng d\u00e0i, thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, v.v. Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n t\u01b0\u01a1ng \u0111\u1ed1i k\u00e9m, ch\u1ec9 t\u1eeb 3% \u0111\u1ebfn 5% \u0111\u1ed3ng. Nh\u01b0ng \u0111\u00e2y l\u00e0 m\u1ed9t l\u1ee3i th\u1ebf trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng. V\u00ed d\u1ee5, s\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9 trong v\u1ecf ho\u1eb7c c\u00e1c th\u00e0nh ph\u1ea7n c\u1ea7n c\u00e1ch ly d\u00f2ng \u0111i\u1ec7n c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba hi\u1ec7u qu\u1ea3 r\u00f2 r\u1ec9 d\u00f2ng \u0111i\u1ec7n ho\u1eb7c nhi\u1ec5u \u0111i\u1ec7n t\u1eeb.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 n\u1eb7ng h\u01a1n nh\u00f4m kh\u00f4ng?<\/h3><p>C\u00f3, th\u00e9p kh\u00f4ng g\u1ec9 n\u1eb7ng h\u01a1n nh\u00f4m. Nh\u00f4m c\u00f3 m\u1eadt \u0111\u1ed9 th\u1ea5p h\u01a1n, khi\u1ebfn n\u00f3 nh\u1eb9 h\u01a1n \u0111\u00e1ng k\u1ec3, \u0111i\u1ec1u n\u00e0y c\u00f3 l\u1ee3i trong c\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 tr\u1ecdng l\u01b0\u1ee3ng l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng.<\/p><h2 class=\"wp-block-heading\">Nh\u00f4m so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9: T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc<\/h2><h3 class=\"wp-block-heading\">Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 l\u1ea1nh<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y c\u1ee7a n\u00f3 th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng 1400-1450 \u00b0 C, cho ph\u00e9p th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb nhi\u1ec7t \u0111\u1ed9 cao trong th\u1eddi gian d\u00e0i m\u00e0 kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng ho\u1eb7c h\u1ecfng h\u00f3c. Ng\u01b0\u1ee3c l\u1ea1i, nh\u00f4m c\u00f3 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y th\u1ea5p h\u01a1n ch\u1ec9 660 \u00b0 C, v\u00ec v\u1eady n\u00f3 c\u00f3 xu h\u01b0\u1edbng m\u1ec1m ho\u1eb7c h\u1ecfng h\u00f3c trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao.&nbsp;<\/p><p>Tuy nhi\u00ean, nh\u00f4m ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 th\u1ea5p v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a nh\u00f4m t\u0103ng l\u00ean khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m, trong khi th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 tr\u1edf n\u00ean gi\u00f2n \u1edf nhi\u1ec7t \u0111\u1ed9 r\u1ea5t th\u1ea5p.<\/p><h3 class=\"wp-block-heading\">Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n<\/h3><p>C\u00e1c <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/properties\/corrosion-resistant\/\">kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9<\/a> ch\u1ee7 y\u1ebfu l\u00e0 do l\u1edbp m\u00e0ng oxit crom th\u1ee5 \u0111\u1ed9ng h\u00ecnh th\u00e0nh tr\u00ean b\u1ec1 m\u1eb7t, c\u00f3 th\u1ec3 duy tr\u00ec \u1ed5n \u0111\u1ecbnh trong nhi\u1ec1u m\u00f4i tr\u01b0\u1eddng h\u00f3a h\u1ecdc kh\u00e1c nhau v\u00e0 c\u00f3 hi\u1ec7u qu\u1ea3 ng\u0103n ng\u1eeba \u0103n m\u00f2n. Ng\u01b0\u1ee3c l\u1ea1i, m\u1eb7c d\u00f9 nh\u00f4m c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t, nh\u01b0ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n k\u00e9m trong m\u00f4i tr\u01b0\u1eddng axit ho\u1eb7c ki\u1ec1m m\u1ea1nh, c\u00f3 th\u1ec3 b\u1ecb \u0103n m\u00f2n nhanh ho\u1eb7c th\u1eadm ch\u00ed l\u00e0 h\u1ecfng k\u1ebft c\u1ea5u.<\/p><h2 class=\"wp-block-heading\">Nh\u00f4m so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9: T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc<\/h2><h3 class=\"wp-block-heading\">S\u1ee9c m\u1ea1nh<\/h3><ul class=\"wp-block-list\"><li>\u0110\u1ed9 b\u1ec1n k\u00e9o: \u0110\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng t\u1eeb 515 MPa \u0111\u1ebfn 1300 MPa, trong khi \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a nh\u00f4m th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng t\u1eeb 100 MPa \u0111\u1ebfn 400 MPa. M\u1eb7c d\u00f9 c\u00f3 \u0111\u1ed9 b\u1ec1n th\u1ea5p h\u01a1n, nh\u00f4m v\u1eabn l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi t\u1ef7 l\u1ec7 \u0111\u1ed9 b\u1ec1n tr\u00ean tr\u1ecdng l\u01b0\u1ee3ng cao, do b\u1ea3n ch\u1ea5t nh\u1eb9 c\u1ee7a n\u00f3.<\/li><\/ul><ul class=\"wp-block-list\"><li>\u0110\u1ed9 b\u1ec1n c\u1eaft: Th\u00e9p kh\u00f4ng g\u1ec9 c\u0169ng c\u00f3 \u0111\u1ed9 b\u1ec1n c\u1eaft cao h\u01a1n nh\u00f4m v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c k\u1ebft c\u1ea5u \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n c\u1eaft cao, ch\u1eb3ng h\u1ea1n nh\u01b0 ch\u1ed1t, d\u1ea7m \u0111\u1ee1, v.v.<\/li><\/ul><h3 class=\"wp-block-heading\">\u0110\u1ed9 c\u1ee9ng<\/h3><p>C\u00e1c <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/properties\/hardness\/\">\u0111\u1ed9 c\u1ee9ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9<\/a> th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng 80-600 HB, trong khi nh\u00f4m c\u00f3 \u0111\u1ed9 c\u1ee9ng th\u1ea5p h\u01a1n kho\u1ea3ng 15 HB. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 b\u1ec1n h\u01a1n trong m\u00f4i tr\u01b0\u1eddng ch\u1ecbu m\u00e0i m\u00f2n cao, trong khi nh\u00f4m c\u00f3 th\u1ec3 d\u1ec5 b\u1ecb tr\u1ea7y x\u01b0\u1edbc ho\u1eb7c bi\u1ebfn d\u1ea1ng. Do \u0111\u00f3, th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng ph\u00f9 h\u1ee3p h\u01a1n nh\u00f4m trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n l\u00e2u d\u00e0i, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c b\u1ed9 ph\u1eadn m\u00e1y m\u00f3c h\u1ea1ng n\u1eb7ng.<\/p><h3 class=\"wp-block-heading\">\u0110\u1ed9 d\u1ebbo<\/h3><p>Nh\u00f4m d\u1ebbo h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9, \u0111i\u1ec1u n\u00e0y l\u00e0m cho nh\u00f4m c\u00f3 l\u1ee3i th\u1ebf h\u01a1n trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi bi\u1ebfn d\u1ea1ng ho\u1eb7c gia c\u00f4ng ph\u1ee9c t\u1ea1p. M\u1eb7c d\u00f9 th\u00e9p kh\u00f4ng g\u1ec9 c\u0169ng c\u00f3 m\u1ed9t m\u1ee9c \u0111\u1ed9 d\u1ebbo nh\u1ea5t \u0111\u1ecbnh, nh\u01b0ng do \u0111\u1ed9 c\u1ee9ng cao h\u01a1n n\u00ean kh\u00f3 gia c\u00f4ng h\u01a1n.<\/p><h3 class=\"wp-block-heading\">N\u0103ng su\u1ea5t<\/h3><p>\u0110\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a nh\u00f4m th\u1ea5p h\u01a1n, th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng 70-110 MPa, trong khi \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 cao h\u01a1n nhi\u1ec1u, th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng 250-800 MPa. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 duy tr\u00ec h\u00ecnh d\u1ea1ng v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n khi ch\u1ecbu t\u1ea3i tr\u1ecdng cao, trong khi nh\u00f4m c\u00f3 th\u1ec3 b\u1ecb bi\u1ebfn d\u1ea1ng d\u1ebbo.<\/p><h3 class=\"wp-block-heading\">Nh\u00f4m hay th\u00e9p kh\u00f4ng g\u1ec9 lo\u1ea1i n\u00e0o b\u1ec1n h\u01a1n?<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng b\u1ec1n h\u01a1n nh\u00f4m, c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9o cao h\u01a1n, v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n. Tuy nhi\u00ean, nh\u00f4m nh\u1eb9 v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c t\u00ecnh hu\u1ed1ng c\u1ea7n gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng. Do \u0111\u00f3, vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ph\u1ee5 thu\u1ed9c v\u00e0o nhu c\u1ea7u c\u1ee7a \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/p><h2 class=\"wp-block-heading\">\u0102n m\u00f2n th\u00e9p kh\u00f4ng g\u1ec9 so v\u1edbi nh\u00f4m<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi do h\u00e0m l\u01b0\u1ee3ng crom, t\u1ea1o th\u00e0nh l\u1edbp oxit b\u1ea3o v\u1ec7 gi\u00fap n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t nh\u01b0 \u1ee9ng d\u1ee5ng h\u00e0ng h\u1ea3i v\u00e0 c\u00f4ng nghi\u1ec7p. Tuy nhi\u00ean, n\u00f3 c\u00f3 th\u1ec3 d\u1ec5 g\u1eb7p c\u00e1c v\u1ea5n \u0111\u1ec1 c\u1ee5c b\u1ed9 nh\u01b0 r\u1ed7 trong m\u00f4i tr\u01b0\u1eddng gi\u00e0u clorua.<\/p><p>Nh\u00f4m, m\u1eb7c d\u00f9 c\u0169ng ch\u1ed1ng \u0103n m\u00f2n th\u00f4ng qua l\u1edbp oxit t\u1ef1 nhi\u00ean c\u1ee7a n\u00f3, nh\u01b0ng d\u1ec5 b\u1ecb \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a khi ti\u1ebfp x\u00fac v\u1edbi c\u00e1c kim lo\u1ea1i kh\u00e1c. N\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng \u00edt kh\u1eafc nghi\u1ec7t h\u01a1n v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 v\u1eadn t\u1ea3i do \u0111\u1eb7c t\u00ednh nh\u1eb9 c\u1ee7a n\u00f3, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi \u0111\u01b0\u1ee3c anot h\u00f3a \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7.<\/p><h2 class=\"wp-block-heading\">Nh\u00f4m so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9: Hi\u1ec7u su\u1ea5t x\u1eed l\u00fd<\/h2><h3 class=\"wp-block-heading\">Kh\u1ea3 n\u0103ng x\u1eed l\u00fd<\/h3><p>Nh\u00f4m d\u1ec5 gia c\u00f4ng nh\u01b0 c\u1eaft, khoan v\u00e0 t\u1ea1o h\u00ecnh do \u0111\u1ed9 c\u1ee9ng th\u1ea5p h\u01a1n v\u00e0 \u0111\u1ed9 d\u1ebbo t\u1ed1t. Do \u0111\u00f3, nh\u00f4m c\u00f3 l\u1ee3i th\u1ebf \u0111\u00e1ng k\u1ec3 trong gia c\u00f4ng khi s\u1ea3n xu\u1ea5t c\u00e1c c\u1ea5u tr\u00fac v\u00e0 b\u1ed9 ph\u1eadn ph\u1ee9c t\u1ea1p. Ng\u01b0\u1ee3c l\u1ea1i, th\u00e9p kh\u00f4ng g\u1ec9 c\u1ee9ng h\u01a1n, kh\u00f3 gia c\u00f4ng h\u01a1n v\u00e0 \u0111\u1eaft h\u01a1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi c\u1eaft v\u00e0 khoan \u0111\u00f2i h\u1ecfi c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 k\u1ef9 thu\u1eadt chuy\u00ean d\u1ee5ng.<\/p><h3 class=\"wp-block-heading\">Kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u00ecnh<\/h3><p>Nh\u00f4m th\u1ec3 hi\u1ec7n kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u00ecnh \u0111\u1eb7c bi\u1ec7t, cho ph\u00e9p d\u1ec5 d\u00e0ng t\u1ea1o h\u00ecnh th\u00e0nh nhi\u1ec1u h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc kh\u00e1c nhau th\u00f4ng qua c\u00e1c quy tr\u00ecnh nh\u01b0 u\u1ed1n, k\u00e9o v\u00e0 d\u1eadp. M\u1eb7c d\u00f9 th\u00e9p kh\u00f4ng g\u1ec9 c\u0169ng c\u00f3 th\u1ec3 \u0111\u1ecbnh h\u00ecnh, nh\u01b0ng kh\u00f3 \u0111\u1ecbnh h\u00ecnh h\u01a1n do \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 b\u1ec1n cao, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi s\u1ea3n xu\u1ea5t c\u00e1c b\u1ed9 ph\u1eadn l\u1edbn ho\u1eb7c ph\u1ee9c t\u1ea1p, c\u00f3 th\u1ec3 c\u1ea7n x\u1eed l\u00fd th\u00eam.<\/p><h3 class=\"wp-block-heading\">Kh\u1ea3 n\u0103ng h\u00e0n<\/h3><p>Nh\u00f4m kh\u00f3 h\u00e0n, ch\u1ee7 y\u1ebfu l\u00e0 do nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y th\u1ea5p v\u00e0 \u0111\u1ed9 d\u1eabn nhi\u1ec7t cao, d\u1ec5 g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 \u0111\u1ed9 th\u00e2m nh\u1eadp ho\u1eb7c ch\u1ea5t l\u01b0\u1ee3ng h\u00e0n trong qu\u00e1 tr\u00ecnh h\u00e0n. Do \u0111\u00f3, h\u00e0n nh\u00f4m th\u01b0\u1eddng \u0111\u00f2i h\u1ecfi ph\u1ea3i s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u00e0 thi\u1ebft b\u1ecb h\u00e0n c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u00e0n TIG ho\u1eb7c h\u00e0n MIG. <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/welding\/\">H\u00e0n th\u00e9p kh\u00f4ng g\u1ec9<\/a> t\u01b0\u01a1ng \u0111\u1ed1i d\u1ec5, nh\u01b0ng v\u1eabn ph\u1ea3i c\u1ea9n th\u1eadn \u0111\u1ec3 tr\u00e1nh \u0103n m\u00f2n ho\u1eb7c m\u1ea5t \u0111\u1ed9 b\u1ec1n \u1edf v\u00f9ng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t c\u1ee7a khu v\u1ef1c h\u00e0n. Trong c\u00e1c t\u00ecnh hu\u1ed1ng h\u00e0n c\u00f3 nhu c\u1ea7u cao, ch\u1eb3ng h\u1ea1n nh\u01b0 \u1ed1ng th\u00e9p kh\u00f4ng g\u1ec9 ho\u1eb7c thi\u1ebft b\u1ecb \u0111\u00f2i h\u1ecfi h\u00e0n ch\u1ea5t l\u01b0\u1ee3ng cao, th\u01b0\u1eddng c\u1ea7n c\u00e1c ph\u01b0\u01a1ng ph\u00e1p h\u00e0n chuy\u00ean d\u1ee5ng nh\u01b0 h\u00e0n h\u1ed3 quang argon.<\/p><h2 class=\"wp-block-heading\">Nh\u00f4m so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9: \u1ee8ng d\u1ee5ng v\u00e0 chi ph\u00ed<\/h2><h3 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng<\/h3><p><strong>Ki\u1ebfn tr\u00fac v\u00e0 C\u1ea5u tr\u00fac<\/strong><\/p><ul class=\"wp-block-list\"><li>Th\u00e9p kh\u00f4ng g\u1ec9: Th\u00e9p kh\u00f4ng g\u1ec9, n\u1ed5i ti\u1ebfng v\u1edbi \u0111\u1ed9 b\u1ec1n ch\u1eafc v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u0111\u00e1ng k\u1ec3, \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c c\u00f4ng tr\u00ecnh ki\u1ebfn tr\u00fac bao g\u1ed3m t\u00f2a nh\u00e0, c\u1ea7u, lan can, tay v\u1ecbn v\u00e0 t\u1ea5m trang tr\u00ed. N\u00f3 c\u0169ng ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n k\u1ebft c\u1ea5u ph\u1ea3i ch\u1ecbu \u0111\u1ef1ng c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t trong th\u1eddi gian d\u00e0i, nh\u01b0 c\u00e1c c\u00f4ng tr\u00ecnh ven bi\u1ec3n v\u00e0 t\u00e1c ph\u1ea9m \u0111i\u00eau kh\u1eafc \u0111\u00f4 th\u1ecb.<\/li><\/ul><ul class=\"wp-block-list\"><li>Nh\u00f4m: Do \u0111\u1eb7c t\u00ednh nh\u1eb9, nh\u00f4m th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng x\u00e2y d\u1ef1ng c\u1ea7n gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u01b0\u1eddng r\u00e8m, khung c\u1eeda s\u1ed5 v\u00e0 c\u1eeda ra v\u00e0o, m\u00e1i nh\u00e0 v\u00e0 t\u1ea5m trang tr\u00ed t\u01b0\u1eddng ngo\u00e0i. Nh\u00f4m d\u1ec5 gia c\u00f4ng c\u0169ng ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 trang tr\u00ed trong c\u00e1c t\u00f2a nh\u00e0.<\/li><\/ul><p><strong>\u00d4 t\u00f4 v\u00e0 Giao th\u00f4ng v\u1eadn t\u1ea3i<\/strong><\/p><ul class=\"wp-block-list\"><li>Th\u00e9p kh\u00f4ng g\u1ec9: \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng \u1ed1ng x\u1ea3 \u00f4 t\u00f4, c\u00e1c b\u1ed9 ph\u1eadn \u0111\u1ed9ng c\u01a1, khung th\u00e2n xe v\u00e0 m\u1ed9t s\u1ed1 b\u1ed9 ph\u1eadn k\u1ebft c\u1ea5u c\u00f3 \u0111\u1ed9 b\u1ec1n cao, ch\u1ee7 y\u1ebfu l\u00e0 do kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 ch\u1ed1ng \u0103n m\u00f2n. Xe t\u1ea3i h\u1ea1ng n\u1eb7ng, t\u00e0u h\u1ecfa v\u00e0 t\u00e0u th\u1ee7y c\u0169ng th\u01b0\u1eddng s\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9.<\/li><\/ul><ul class=\"wp-block-list\"><li>Nh\u00f4m: Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p \u00f4 t\u00f4, nh\u00f4m ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c b\u1ed9 ph\u1eadn nh\u1eb9 nh\u01b0 t\u1ea5m th\u00e2n, mui xe, b\u00e1nh xe v\u00e0 khung. \u0110\u1ed9 nh\u1eb9 v\u1ed1n c\u00f3 c\u1ee7a nh\u00f4m g\u00f3p ph\u1ea7n \u0111\u00e1ng k\u1ec3 v\u00e0o vi\u1ec7c t\u0103ng hi\u1ec7u qu\u1ea3 nhi\u00ean li\u1ec7u, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng trong ng\u00e0nh h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 cho c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 th\u00e2n m\u00e1y bay, c\u00e1nh v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn \u0111\u1ed9ng c\u01a1.<\/li><\/ul><p><strong>Th\u1ef1c ph\u1ea9m v\u00e0 thi\u1ebft b\u1ecb y t\u1ebf<\/strong><\/p><ul class=\"wp-block-list\"><li>Th\u00e9p kh\u00f4ng g\u1ec9: Th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho thi\u1ebft b\u1ecb ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, \u0111\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp, d\u1ee5ng c\u1ee5 ph\u1eabu thu\u1eadt, thi\u1ebft b\u1ecb y t\u1ebf v\u00e0 c\u1ea5y gh\u00e9p do \u0111\u1eb7c t\u00ednh ch\u1ed1ng g\u1ec9 v\u00e0 d\u1ec5 v\u1ec7 sinh. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u0111\u1eb7c bi\u1ec7t c\u1ee7a n\u00f3 khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c m\u00f4i tr\u01b0\u1eddng \u0111\u00f2i h\u1ecfi ti\u00eau chu\u1ea9n v\u1ec7 sinh nghi\u00eam ng\u1eb7t, bao g\u1ed3m ph\u00f2ng ph\u1eabu thu\u1eadt v\u00e0 ph\u00f2ng th\u00ed nghi\u1ec7m.<\/li><\/ul><ul class=\"wp-block-list\"><li>Nh\u00f4m: Nh\u00f4m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong lon \u0111\u1ed3 u\u1ed1ng, bao b\u00ec th\u1ef1c ph\u1ea9m v\u00e0 m\u1ed9t s\u1ed1 \u0111\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp trong ng\u00e0nh c\u00f4ng nghi\u1ec7p th\u1ef1c ph\u1ea9m, ch\u1ee7 y\u1ebfu v\u00ec tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9 v\u00e0 kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t t\u1ed1t. Tuy nhi\u00ean, nh\u00f4m kh\u00f4ng b\u1ec1n b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi th\u1ef1c ph\u1ea9m c\u00f3 t\u00ednh axit ho\u1eb7c ki\u1ec1m.<\/li><\/ul><p><strong>\u0110i\u1ec7n t\u1eed v\u00e0 \u0110i\u1ec7n<\/strong><\/p><ul class=\"wp-block-list\"><li>Th\u00e9p kh\u00f4ng g\u1ec9: Do c\u00f3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n th\u1ea5p v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao n\u00ean th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong v\u1ecf v\u00e0 \u0111\u1ed3 \u0111\u1ea1c c\u1ea7n c\u00e1ch \u0111i\u1ec7n, c\u0169ng nh\u01b0 thi\u1ebft b\u1ecb c\u1ea7n \u0111\u1ed9 b\u1ec1n cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.<\/li>\n\n<li>Nh\u00f4m: Do c\u00f3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n t\u1ed1t v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9, nh\u00f4m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c \u0111\u01b0\u1eddng d\u00e2y truy\u1ec1n t\u1ea3i \u0111i\u1ec7n cao th\u1ebf, c\u00e1p, b\u1ed9 t\u1ea3n nhi\u1ec7t v\u00e0 v\u1ecf thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed. \u01afu \u0111i\u1ec3m c\u1ee7a nh\u00f4m v\u1ec1 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n v\u00e0 t\u1ea3n nhi\u1ec7t khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n quan tr\u1ecdng c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111i\u1ec7n t\u1eed v\u00e0 \u0111i\u1ec7n.<\/li><\/ul><p><strong>H\u00e0ng h\u1ea3i v\u00e0 H\u00f3a ch\u1ea5t<\/strong><\/p><ul class=\"wp-block-list\"><li>Th\u00e9p kh\u00f4ng g\u1ec9: \u0110\u1eb7c bi\u1ec7t l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 316, do kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi trong n\u01b0\u1edbc mu\u1ed1i v\u00e0 h\u00f3a ch\u1ea5t, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong t\u00e0u thuy\u1ec1n, gi\u00e0n khoan ngo\u00e0i kh\u01a1i, thi\u1ebft b\u1ecb h\u00f3a ch\u1ea5t v\u00e0 \u0111\u01b0\u1eddng \u1ed1ng. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3 c\u1ef1c k\u1ef3 quan tr\u1ecdng trong nh\u1eefng l\u0129nh v\u1ef1c n\u00e0y.<\/li>\n\n<li>Nh\u00f4m: Trong c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng h\u1ea3i, nh\u00f4m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong th\u00e2n t\u00e0u, phao v\u00e0 m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb h\u00e0ng h\u1ea3i do tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9 v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n. Tuy nhi\u00ean, nh\u00f4m d\u1ec5 b\u1ecb \u0103n m\u00f2n h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9 trong m\u00f4i tr\u01b0\u1eddng h\u00f3a ch\u1ea5t kh\u1eafc nghi\u1ec7t, do \u0111\u00f3, ph\u1ea1m vi s\u1eed d\u1ee5ng c\u1ee7a nh\u00f4m b\u1ecb h\u1ea1n ch\u1ebf.<\/li><\/ul><h3 class=\"wp-block-heading\">Chi ph\u00ed<\/h3><p>V\u1ec1 m\u1eb7t chi ph\u00ed, gi\u00e1 nguy\u00ean li\u1ec7u th\u00f4 c\u1ee7a nh\u00f4m t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p, nh\u01b0ng chi ph\u00ed gia c\u00f4ng c\u00f3 th\u1ec3 cao, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi c\u1ea7n x\u1eed l\u00fd b\u1ec1 m\u1eb7t. Chi ph\u00ed nguy\u00ean li\u1ec7u th\u00f4 v\u00e0 gia c\u00f4ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 cao, nh\u01b0ng hi\u1ec7u su\u1ea5t chi ph\u00ed v\u1eabn cao trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 \u0111\u1eaft h\u01a1n nh\u00f4m kh\u00f4ng?<\/h3><p>C\u00f3, th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng \u0111\u1eaft h\u01a1n nh\u00f4m. \u0110i\u1ec1u n\u00e0y l\u00e0 do chi ph\u00ed nguy\u00ean li\u1ec7u th\u00f4 cao h\u01a1n, quy tr\u00ecnh s\u1ea3n xu\u1ea5t ph\u1ee9c t\u1ea1p h\u01a1n v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh v\u01b0\u1ee3t tr\u1ed9i c\u1ee7a n\u00f3, ch\u1eb3ng h\u1ea1n nh\u01b0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n. Tuy nhi\u00ean, gi\u00e1 c\u1ea3 c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00f9y theo lo\u1ea1i h\u1ee3p kim v\u00e0 \u0111i\u1ec1u ki\u1ec7n th\u1ecb tr\u01b0\u1eddng.<\/p><h2 class=\"wp-block-heading\">Nh\u00f4m so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9: M\u00e0u s\u1eafc v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/h2><h3 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t m\u00e0u s\u1eafc t\u1ef1 nhi\u00ean<\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 t\u1ef1 nhi\u00ean c\u00f3 \u0111\u1ed9 b\u00f3ng m\u00e0u x\u00e1m b\u1ea1c. M\u00e0u t\u1ef1 nhi\u00ean c\u1ee7a nh\u00f4m l\u00e0 b\u1ea1c s\u00e1ng \u0111\u1ebfn x\u00e1m nh\u1ea1t, th\u01b0\u1eddng s\u00e1ng h\u01a1n v\u00e0 tr\u1eafng h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9. M\u00e0u c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 tr\u1edf n\u00ean t\u1ed1i h\u01a1n m\u1ed9t ch\u00fat sau khi nh\u00f4m b\u1ecb oxy h\u00f3a trong kh\u00f4ng kh\u00ed.<\/p><h3 class=\"wp-block-heading\">X\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/h3><p><strong>Th\u00e9p kh\u00f4ng g\u1ec9:<\/strong> M\u00e0u s\u1eafc c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh th\u00f4ng qua c\u00e1c k\u1ef9 thu\u1eadt x\u1eed l\u00fd b\u1ec1 m\u1eb7t kh\u00e1c nhau nh\u01b0 m\u1ea1 \u0111i\u1ec7n, nhu\u1ed9m h\u00f3a h\u1ecdc v\u00e0 ph\u1ee7 PVD. M\u1ea1 \u0111i\u1ec7n c\u00f3 th\u1ec3 l\u00e0m cho b\u1ec1 m\u1eb7t th\u00e9p kh\u00f4ng g\u1ec9 tr\u00f4ng v\u00e0ng, \u0111en ho\u1eb7c c\u00e1c m\u00e0u kh\u00e1c, trong khi ph\u1ee7 PVD (ph\u1ee7 h\u01a1i v\u1eadt l\u00fd) c\u00f3 th\u1ec3 l\u00e0m cho b\u1ec1 m\u1eb7t th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 nhi\u1ec1u m\u00e0u s\u1eafc nh\u01b0 v\u00e0ng titan, v\u00e0ng h\u1ed3ng, xanh lam, v.v., trong khi v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u00f3ng kim lo\u1ea1i.<\/p><p><strong>Nh\u00f4m: <\/strong>M\u00e0u s\u1eafc c\u1ee7a nh\u00f4m th\u01b0\u1eddng \u0111\u01b0\u1ee3c thay \u0111\u1ed5i b\u1eb1ng c\u00e1ch anot h\u00f3a ho\u1eb7c ph\u1ee7 b\u1ed9t. Anot h\u00f3a c\u00f3 th\u1ec3 l\u00e0m cho b\u1ec1 m\u1eb7t nh\u00f4m xu\u1ea5t hi\u1ec7n v\u1edbi nhi\u1ec1u m\u00e0u s\u1eafc kh\u00e1c nhau nh\u01b0 \u0111en, xanh, \u0111\u1ecf, v\u00e0ng, v.v., trong khi v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u00f3ng c\u1ee7a kim lo\u1ea1i. Ph\u1ee7 b\u1ed9t c\u00f3 th\u1ec3 cung c\u1ea5p nhi\u1ec1u l\u1ef1a ch\u1ecdn m\u00e0u s\u1eafc h\u01a1n, bao g\u1ed3m hi\u1ec7u \u1ee9ng m\u1edd, b\u00f3ng v\u00e0 k\u1ebft c\u1ea5u \u0111\u1eb7c bi\u1ec7t.<\/p><h2 class=\"wp-block-heading\">Nh\u00f4m ch\u1ea3i so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9<\/h2><h3 class=\"wp-block-heading\">V\u1ebb b\u1ec1 ngo\u00e0i<\/h3><p>Nh\u00f4m ch\u1ea3i c\u00f3 l\u1edbp ho\u00e0n thi\u1ec7n m\u1edd hi\u1ec7n \u0111\u1ea1i v\u1edbi c\u00e1c \u0111\u01b0\u1eddng n\u00e9t tinh t\u1ebf, mang l\u1ea1i v\u1ebb ngo\u00e0i b\u00f3ng b\u1ea9y v\u00e0 t\u1ed1i gi\u1ea3n, l\u00fd t\u01b0\u1edfng cho c\u00e1c thi\u1ebft k\u1ebf \u0111\u01b0\u01a1ng \u0111\u1ea1i. Ng\u01b0\u1ee3c l\u1ea1i, th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ea3i c\u00f3 b\u1ec1 m\u1eb7t s\u00e1ng b\u00f3ng h\u01a1n v\u1edbi nhi\u1ec1u ph\u1ea3n chi\u1ebfu h\u01a1n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 l\u1ef1a ch\u1ecdn cao c\u1ea5p h\u01a1n.<\/p><h3 class=\"wp-block-heading\">C\u00e2n n\u1eb7ng<\/h3><p>Nh\u00f4m ch\u1ea3i nh\u1eb9 h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9, gi\u00fap d\u1ec5 x\u1eed l\u00fd v\u00e0 l\u1eafp \u0111\u1eb7t h\u01a1n, c\u00f3 l\u1ee3i trong c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng. Ng\u01b0\u1ee3c l\u1ea1i, th\u00e9p kh\u00f4ng g\u1ec9 n\u1eb7ng h\u01a1n, mang l\u1ea1i c\u1ea3m gi\u00e1c ch\u1eafc ch\u1eafn h\u01a1n trong nhi\u1ec1u b\u1ed1i c\u1ea3nh kh\u00e1c nhau.<\/p><h3 class=\"wp-block-heading\">Ch\u1ed1ng \u0103n m\u00f2n<\/h3><p>Nh\u00f4m ch\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi \u0111\u01b0\u1ee3c anot h\u00f3a, nh\u01b0ng c\u00f3 th\u1ec3 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t. Th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i do c\u00f3 h\u00e0m l\u01b0\u1ee3ng crom, ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng h\u01a1n.<\/p><h3 class=\"wp-block-heading\">\u0110\u1ed9 b\u1ec1n<\/h3><p>Nh\u00f4m ch\u1ea3i m\u1ec1m h\u01a1n v\u00e0 d\u1ec5 b\u1ecb tr\u1ea7y x\u01b0\u1edbc v\u00e0 m\u00f3p h\u01a1n so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9. Ng\u01b0\u1ee3c l\u1ea1i, th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ea3i b\u1ec1n h\u01a1n v\u00e0 ch\u1ed1ng m\u00e0i m\u00f2n, l\u00fd t\u01b0\u1edfng cho nh\u1eefng khu v\u1ef1c c\u00f3 l\u01b0u l\u01b0\u1ee3ng \u0111i l\u1ea1i cao.<\/p><h3 class=\"wp-block-heading\">Tr\u1ecb gi\u00e1<\/h3><p>Nh\u00f4m ch\u1ea3i th\u01b0\u1eddng c\u00f3 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng h\u01a1n, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c d\u1ef1 \u00e1n c\u00f3 ng\u00e2n s\u00e1ch h\u1ea1n h\u1eb9p. Th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ea3i, v\u1edbi \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu v\u01b0\u1ee3t tr\u1ed9i, th\u01b0\u1eddng \u0111\u1eaft h\u01a1n. L\u1ef1a ch\u1ecdn gi\u1eefa hai lo\u1ea1i n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 t\u00ednh th\u1ea9m m\u1ef9, tr\u1ecdng l\u01b0\u1ee3ng, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 ng\u00e2n s\u00e1ch.<\/p><h2 class=\"wp-block-heading\">C\u00e1i n\u00e0o b\u1ec1n v\u1eefng h\u01a1n, th\u00e9p kh\u00f4ng g\u1ec9 hay nh\u00f4m?<\/h2><p>C\u1ea3 nh\u00f4m v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u1ec1u c\u00f3 kh\u1ea3 n\u0103ng t\u00e1i ch\u1ebf t\u1ed1t.<\/p><p>Nh\u00f4m t\u00e1i ch\u1ebf t\u01b0\u01a1ng \u0111\u1ed1i d\u1ec5 d\u00e0ng v\u00e0 nh\u00f4m t\u00e1i ch\u1ebf v\u1eabn c\u00f3 nh\u1eefng \u0111\u1eb7c t\u00ednh tuy\u1ec7t v\u1eddi. Do \u0111\u1eb7c t\u00ednh nh\u1eb9, nh\u00f4m c\u0169ng c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 gi\u1ea3m ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n v\u00e0 s\u1eed d\u1ee5ng.&nbsp;<\/p><p>Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 t\u1ef7 l\u1ec7 t\u00e1i ch\u1ebf cao v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 h\u1ea7u nh\u01b0 kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng sau khi t\u00e1i ch\u1ebf, \u0111i\u1ec1u n\u00e0y l\u00e0m cho th\u00e9p kh\u00f4ng g\u1ec9 tr\u1edf n\u00ean tuy\u1ec7t v\u1eddi v\u1ec1 t\u00ednh b\u1ec1n v\u1eefng. Ngo\u00e0i ra, th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 tu\u1ed5i th\u1ecd cao v\u00e0 \u00edt t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u1ee7a n\u00f3.<\/p><h2 class=\"wp-block-heading\">Lo\u1ea1i n\u00e0o b\u1ec1n h\u01a1n, nh\u00f4m hay th\u00e9p kh\u00f4ng g\u1ec9?<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng c\u00f3 \u0111\u1ed9 b\u1ec1n t\u1ed1t h\u01a1n nh\u00f4m, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n. \u0110\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 cho ph\u00e9p n\u00f3 duy tr\u00ec hi\u1ec7u su\u1ea5t trong th\u1eddi gian d\u00e0i trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, trong khi nh\u00f4m c\u00f3 th\u1ec3 m\u1ea5t l\u1edbp b\u1ea3o v\u1ec7 trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, g\u00e2y ra \u0103n m\u00f2n v\u00e0 h\u01b0 h\u1ecfng. Tuy nhi\u00ean, trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9 v\u00e0 \u0111\u1ed9 d\u1eabn nhi\u1ec7t cao, \u0111\u1ed9 b\u1ec1n c\u1ee7a nh\u00f4m kh\u00f4ng th\u1ec3 b\u1ecb b\u1ecf qua.<\/p><h2 class=\"wp-block-heading\">Nh\u00f4m c\u1ea5p h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 so v\u1edbi th\u00e9p ph\u1eabu thu\u1eadt<\/h2><p>Nh\u00f4m c\u1ea5p h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong c\u00e1c h\u1ee3p kim nh\u01b0 2024 ho\u1eb7c 7075, \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao v\u00ec tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9 v\u00e0 t\u1ef7 l\u1ec7 \u0111\u1ed9 b\u1ec1n tr\u00ean tr\u1ecdng l\u01b0\u1ee3ng cao, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng kh\u00f4ng v\u00e0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5. N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi \u0111\u01b0\u1ee3c anot h\u00f3a, nh\u01b0ng c\u00f3 th\u1ec3 d\u1ec5 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng h\u01a1n so v\u1edbi c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c.<\/p><p>Th\u00e9p ph\u1eabu thu\u1eadt, th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 nh\u01b0 316L, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 t\u01b0\u01a1ng th\u00edch sinh h\u1ecdc \u0111\u1eb7c bi\u1ec7t, r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c d\u1ee5ng c\u1ee5 y t\u1ebf v\u00e0 c\u1ea5y gh\u00e9p. M\u1eb7c d\u00f9 n\u1eb7ng h\u01a1n nh\u00f4m, nh\u01b0ng \u0111\u1ed9 b\u1ec1n v\u00e0 s\u1ee9c m\u1ea1nh c\u1ee7a th\u00e9p ph\u1eabu thu\u1eadt khi\u1ebfn n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 tin c\u1eady khi ch\u1ecbu \u00e1p l\u1ef1c, m\u1eb7c d\u00f9 n\u00f3 c\u00f3 xu h\u01b0\u1edbng \u0111\u1eaft h\u01a1n do c\u00e1c ti\u00eau chu\u1ea9n nghi\u00eam ng\u1eb7t trong l\u0129nh v\u1ef1c y t\u1ebf.<\/p><h2 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ph\u00e2n bi\u1ec7t nh\u00f4m v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9?<\/h2><p>C\u00f3 nhi\u1ec1u c\u00e1ch \u0111\u1ec3 ph\u00e2n bi\u1ec7t nh\u00f4m v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9. C\u00e1ch tr\u1ef1c ti\u1ebfp nh\u1ea5t \u0111\u1ec3 ph\u00e2n bi\u1ec7t nh\u00f4m v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 nh\u00ecn v\u00e0o tr\u1ecdng l\u01b0\u1ee3ng. Nh\u00f4m r\u00f5 r\u00e0ng nh\u1eb9 h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9. Th\u1ee9 hai l\u00e0 ki\u1ec3m tra t\u1eeb t\u00ednh c\u1ee7a ch\u00fang. Nh\u00f4m kh\u00f4ng c\u00f3 t\u1eeb t\u00ednh, v\u00e0 t\u1eeb t\u00ednh c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o th\u00e0nh ph\u1ea7n c\u1ee5 th\u1ec3. Ngo\u00e0i ra, nh\u00f4m c\u00f3 m\u00e0u x\u1ec9n h\u01a1n, trong khi th\u00e9p kh\u00f4ng g\u1ec9 s\u00e1ng h\u01a1n. V\u1edbi nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng ph\u00e2n bi\u1ec7t gi\u1eefa hai v\u1eadt li\u1ec7u.<\/p><h2 class=\"wp-block-heading\">C\u00f3 nh\u00f4m trong th\u00e9p kh\u00f4ng g\u1ec9 kh\u00f4ng?<\/h2><p>C\u00f3, nh\u00f4m c\u00f3 th\u1ec3 c\u00f3 trong m\u1ed9t s\u1ed1 h\u1ee3p kim th\u00e9p kh\u00f4ng g\u1ec9 nh\u01b0 m\u1ed9t nguy\u00ean t\u1ed1 h\u1ee3p kim ph\u1ee5. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a v\u00e0 c\u1ea5u tr\u00fac h\u1ea1t. Tuy nhi\u00ean, n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh nh\u01b0 crom ho\u1eb7c niken, nh\u1eefng th\u00e0nh ph\u1ea7n quan tr\u1ecdng h\u01a1n \u0111\u1ed1i v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9.<\/p><h2 class=\"wp-block-heading\">Nh\u1eadn \u0111\u01b0\u1ee3c th\u00e9p kh\u00f4ng g\u1ec9 nh\u01b0 mong mu\u1ed1n!<\/h2><p>L\u00e0 nh\u00e0 cung c\u1ea5p th\u00e9p \u0111\u1eb7c bi\u1ec7t h\u00e0ng \u0111\u1ea7u, ch\u00fang t\u00f4i cam k\u1ebft cung c\u1ea5p cho b\u1ea1n c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng 100% v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 t\u00f9y ch\u1ec9nh. \u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 th\u00e9p kh\u00f4ng g\u1ec9 ho\u1eb7c c\u00e1c v\u1eadt li\u1ec7u kim lo\u1ea1i kh\u00e1c, vui l\u00f2ng truy c\u1eadp <a href=\"https:\/\/steelprogroup.com\/vi\/blog\/\">blog c\u1ee7a ch\u00fang t\u00f4i<\/a> ho\u1eb7c li\u00ean h\u1ec7 v\u1edbi c\u00e1c chuy\u00ean gia c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n. Ch\u00e0o m\u1eebng b\u1ea1n \u0111\u1ebfn th\u0103m trang web c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin ho\u1eb7c g\u1eedi <a href=\"https:\/\/steelprogroup.com\/vi\/contact-us\/\">y\u00eau c\u1ea7u b\u00e1o gi\u00e1<\/a>, ch\u00fang t\u00f4i s\u1ebd li\u00ean h\u1ec7 v\u1edbi b\u1ea1n s\u1edbm nh\u1ea5t c\u00f3 th\u1ec3!<\/p>","protected":false},"excerpt":{"rendered":"<p>Nh\u00f4m v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 hai v\u1eadt li\u1ec7u kim lo\u1ea1i c\u1ef1c k\u1ef3 quan tr\u1ecdng \u0111\u00e3 th\u00e2m nh\u1eadp v\u00e0o m\u1ecdi kh\u00eda c\u1ea1nh c\u1ee7a cu\u1ed9c s\u1ed1ng v\u00e0 s\u1ea3n xu\u1ea5t. [\u2026]<\/p>","protected":false},"author":1,"featured_media":10701,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","rank_math_lock_modified_date":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[4195,112],"tags":[],"class_list":["post-10700","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-comparison","category-stainless-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/10700","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/comments?post=10700"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/10700\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/10701"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=10700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=10700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=10700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}