{"id":11627,"date":"2024-10-14T10:02:00","date_gmt":"2024-10-14T02:02:00","guid":{"rendered":"https:\/\/app11147.cloudwayssites.com\/?p=11627"},"modified":"2024-11-21T11:12:35","modified_gmt":"2024-11-21T03:12:35","slug":"grade-431","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-431\/","title":{"rendered":"Th\u00e9p kh\u00f4ng g\u1ec9 431: T\u00ednh ch\u1ea5t, \u0111\u1eb7c \u0111i\u1ec3m, c\u00f4ng d\u1ee5ng"},"content":{"rendered":"<p>Th\u00e9p kh\u00f4ng g\u1ec9 431 l\u00e0 h\u1ee3p kim martensitic d\u1ebbo dai, b\u1ec1n b\u1ec9 \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn v\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9, \u0111\u1ed9 d\u1ebbo dai v\u00e0 d\u1ec5 t\u1ea1o h\u00ecnh v\u01b0\u1ee3t tr\u1ed9i. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p, th\u00e9p kh\u00f4ng g\u1ec9 431 mang l\u1ea1i s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 d\u1ebbo dai v\u00e0 \u0111\u1ed9 b\u1ec1n.&nbsp;<\/p><p>Trong h\u01b0\u1edbng d\u1eabn n\u00e0y, ch\u00fang t\u00f4i s\u1ebd kh\u00e1m ph\u00e1 c\u00e1c \u0111\u1eb7c t\u00ednh, \u1ee9ng d\u1ee5ng, c\u1ea5p \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u00e0 c\u00e1c t\u00f9y ch\u1ecdn x\u1eed l\u00fd \u0111\u1ec3 gi\u00fap b\u1ea1n hi\u1ec3u t\u1ea1i sao \u0111\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn \u0111\u00e1ng tin c\u1eady cho c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 431 l\u00e0 g\u00ec?<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 431 (UNS S43100) l\u00e0 s\u1eaft 80-85%, crom 15-17%, cacbon v\u00e0 niken. \u0110\u00e2y l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 martensitic \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n ASTM A276, mang l\u1ea1i \u0111\u1ed9 b\u1ec1n, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 kh\u1ea3 n\u0103ng gia c\u00f4ng. X\u1eed l\u00fd th\u00e9p kh\u00f4ng g\u1ec9 431 \u1edf nhi\u1ec7t \u0111\u1ed9 600\u00b0C \u0111\u1ebfn 800\u00b0C s\u1ebd t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3. \u0110\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd nhi\u1ec7t, th\u00e9p kh\u00f4ng g\u1ec9 431 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ng\u00e0nh h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, h\u00e0ng h\u1ea3i v\u00e0 \u00f4 t\u00f4 \u0111\u1ec3 l\u00e0m tr\u1ee5c, bu l\u00f4ng v\u00e0 ch\u1ed1t. L\u00e0m vi\u1ec7c ngu\u1ed9i c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a n\u00f3.&nbsp;<\/p><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 431<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 431 n\u1ed5i ti\u1ebfng v\u1edbi \u0111\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i, kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 tuy\u1ec7t v\u1eddi v\u00e0 \u0111\u1ed9 b\u1ec1n ch\u1eafc. H\u00e0m l\u01b0\u1ee3ng crom v\u00e0 niken t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a. N\u00f3 c\u0169ng cung c\u1ea5p kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i v\u00e0 ch\u1ed1ng m\u00e0i m\u00f2n tuy\u1ec7t v\u1eddi, l\u00e0m cho n\u00f3 tr\u1edf n\u00ean ho\u00e0n h\u1ea3o cho c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u1ea7y th\u00e1ch th\u1ee9c.<\/p><h3 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a SS 431<\/h3><p>Th\u00e0nh ph\u1ea7n c\u1ee7a SS 431 \u0111\u01b0\u1ee3c \u0111\u1eb7c tr\u01b0ng b\u1edfi h\u00e0m l\u01b0\u1ee3ng crom cao, mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i, c\u00f9ng v\u1edbi h\u00e0m l\u01b0\u1ee3ng cacbon v\u00e0 niken v\u1eeba ph\u1ea3i \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n. \u0110\u1ec3 bi\u1ebft c\u00e1c s\u1ed1 li\u1ec7u c\u1ee5 th\u1ec3, vui l\u00f2ng tham kh\u1ea3o b\u1ea3ng b\u00ean d\u01b0\u1edbi.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Y\u1ebfu t\u1ed1<\/strong><\/td><td><strong>Crom (Cr)<\/strong><\/td><td><strong>Niken (Ni)<\/strong><\/td><td><strong>Cacbon (C)<\/strong><\/td><td><strong>Mangan (Mn)<\/strong><\/td><td><strong>Silic (Si)<\/strong><\/td><td><strong>Ph\u1ed1t pho (P)<\/strong><\/td><td><strong>L\u01b0u hu\u1ef3nh (S)<\/strong><\/td><\/tr><tr><td>Ph\u1ea7n tr\u0103m<\/td><td>15.0-17.0%<\/td><td>1.25-2.50%<\/td><td>0.12-0.20%<\/td><td>T\u1ed1i \u0111a 1.00%<\/td><td>T\u1ed1i \u0111a 1.00%<\/td><td>0,040% t\u1ed1i \u0111a<\/td><td>0,030% t\u1ed1i \u0111a<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 431<\/h3><p>SS 431 n\u1ed5i b\u1eadt nh\u1ea5t v\u00ec \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 c\u1ee9ng cao, ngay c\u1ea3 sau khi x\u1eed l\u00fd nhi\u1ec7t, khi\u1ebfn n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u01a1 h\u1ecdc \u0111\u00f2i h\u1ecfi kh\u1eaft khe. \u0110\u1ec3 bi\u1ebft c\u00e1c gi\u00e1 tr\u1ecb c\u1ee5 th\u1ec3 \u1edf c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u1ee7 kh\u00e1c nhau, h\u00e3y xem b\u1ea3ng b\u00ean d\u01b0\u1edbi.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Nhi\u1ec7t \u0111\u1ed9 \u1ee7 (\u00b0C\/\u00b0F)<\/strong><\/td><td><strong>\u0110\u1ed9 b\u1ec1n k\u00e9o (MPa\/ksi)<\/strong><\/td><td><strong>Gi\u1edbi h\u1ea1n ch\u1ea3y (MPa\/ksi)<\/strong><\/td><td><strong>\u0110\u1ed9 c\u1ee9ng Vickers (HV)<\/strong><\/td><td><strong>\u0110\u1ed9 c\u1ee9ng Brinell (HB)<\/strong><\/td><td><strong>\u0110\u1ed9 c\u1ee9ng Rockwell (HRc)<\/strong><\/td><td><strong>\u0110\u1ed9 gi\u00e3n d\u00e0i (%)<\/strong><\/td><td><strong>M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i (GPa\/ksi)<\/strong><\/td><\/tr><tr><td>540\u00b0C \/ 1004\u00b0F<\/td><td>930-1080 \/ 135-156<\/td><td>725-860 \/ 105-125<\/td><td>280-340<\/td><td>255-300<\/td><td>27-35<\/td><td>15-20<\/td><td>200 \/ 29000<\/td><\/tr><tr><td>600\u00b0C \/ 1112\u00b0F<\/td><td>860-960 \/ 125-139<\/td><td>690-800 \/ 100-116<\/td><td>250-310<\/td><td>235-275<\/td><td>24-32<\/td><td>17-22<\/td><td>200 \/ 29000<\/td><\/tr><tr><td>650\u00b0C \/ 1202\u00b0F<\/td><td>790-890 \/ 115-129<\/td><td>620-730 \/ 90-106<\/td><td>230-280<\/td><td>215-255<\/td><td>22-30<\/td><td>18-23<\/td><td>200 \/ 29000<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a 431<\/h3><p>C\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a ss 431 \u0111\u01b0\u1ee3c l\u00e0m n\u1ed5i b\u1eadt b\u1edfi m\u1eadt \u0111\u1ed9 cao v\u00e0 \u0111\u1ed9 d\u1eabn nhi\u1ec7t t\u1ed1t, khi\u1ebfn n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng \u1ee9ng su\u1ea5t cao. C\u00e1c gi\u00e1 tr\u1ecb n\u00e0y th\u1ec3 hi\u1ec7n c\u00e1c t\u00ednh ch\u1ea5t chung trong \u0111i\u1ec1u ki\u1ec7n \u1ee7 ti\u00eau chu\u1ea9n v\u00e0 c\u00f3 th\u1ec3 thay \u0111\u1ed5i theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd nhi\u1ec7t kh\u00e1c nhau.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>\u0110\u01a1n v\u1ecb m\u00e9t<\/strong><\/td><td><strong>\u0110\u01a1n v\u1ecb \u0110\u1ebf qu\u1ed1c<\/strong><\/td><\/tr><tr><td>T\u1ec9 tr\u1ecdng<\/td><td>7,70 g\/cm\u00b3<\/td><td>0,278 lb\/in\u00b3<\/td><\/tr><tr><td>\u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td><td>1450-1510\u00b0C<\/td><td>2642-2750\u00b0F<\/td><\/tr><tr><td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td><td>24 W\/m\u00b7K<\/td><td>166 BTU\u00b7in\/h\u00b7ft\u00b2\u00b7\u00b0F<\/td><\/tr><tr><td>\u0110i\u1ec7n tr\u1edf su\u1ea5t<\/td><td>570 n\u03a9\u00b7m<\/td><td>570 n\u03a9\u00b7m<\/td><\/tr><tr><td>Nhi\u1ec7t dung ri\u00eang<\/td><td>460 J\/kg\u00b7K<\/td><td>460 J\/kg\u00b7K<\/td><\/tr><tr><td>H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t<\/td><td>10,2 \u00b5m\/m\u00b7\u00b0C (20-100\u00b0C)<\/td><td>5,67 \u00b5in\/in\u00b7\u00b0F (70-212\u00b0F)<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">C\u00e1c c\u1ea5p \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 431<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 431 c\u00f3 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc v\u00e0 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc t\u01b0\u01a1ng t\u1ef1 v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p t\u01b0\u01a1ng \u0111\u01b0\u01a1ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf c\u00e1c qu\u1ed1c gia kh\u00e1c. C\u00e1c lo\u1ea1i th\u00e9p n\u00e0y cung c\u1ea5p hi\u1ec7u su\u1ea5t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng tr\u00ean nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng c\u00e1c lo\u1ea1i th\u00e9p t\u01b0\u01a1ng \u0111\u01b0\u01a1ng t\u1eeb c\u00e1c khu v\u1ef1c kh\u00e1c nhau.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Ti\u00eau chu\u1ea9n<\/strong><\/td><td><strong>L\u1edbp t\u01b0\u01a1ng \u0111\u01b0\u01a1ng<\/strong><\/td><td><strong>Qu\u1ed1c gia<\/strong><\/td><\/tr><tr><td>Ti\u00eau chu\u1ea9n Nh\u1eadt B\u1ea3n<\/td><td>SUS431<\/td><td>Nh\u1eadt B\u1ea3n<\/td><\/tr><tr><td>GB\/T<\/td><td>1Cr17Ni2<\/td><td>Trung Qu\u1ed1c<\/td><\/tr><tr><td>VI<\/td><td>X17CrNi16-2 (1.4057)<\/td><td>Li\u00ean minh ch\u00e2u \u00c2u<\/td><\/tr><tr><td>\u0110\u1ea0I H\u1eccC<\/td><td>X17CrNi16-2<\/td><td>\u0110\u1ee9c<\/td><\/tr><tr><td>\u0110\u1ea0I H\u1eccC<\/td><td>14Kh17N2<\/td><td>Nga<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 thay th\u1ebf c\u00f3 th\u1ec3 c\u00f3 cho th\u00e9p kh\u00f4ng g\u1ec9 431<\/h2><p>M\u1ed9t s\u1ed1 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 thay th\u1ebf cho th\u00e9p 431 do c\u00f3 th\u00e0nh ph\u1ea7n ho\u1eb7c \u1ee9ng d\u1ee5ng t\u01b0\u01a1ng t\u1ef1:<\/p><ol class=\"wp-block-list\"><li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-410\/\"><strong>L\u1edbp 410<\/strong><\/a>: Th\u00e9p kh\u00f4ng g\u1ec9 Martensitic c\u00f3 crom. N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n t\u1ed1t nh\u01b0ng \u0111\u1ed9 d\u1ebbo dai th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi 431.<\/li>\n\n<li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-420\/\"><strong>L\u1edbp 420<\/strong><\/a>: H\u00e0m l\u01b0\u1ee3ng carbon cao h\u01a1n 431. N\u00f3 c\u00f3 \u0111\u1ed9 c\u1ee9ng t\u1ed1t h\u01a1n sau khi x\u1eed l\u00fd nhi\u1ec7t, ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ed1ng m\u00e0i m\u00f2n nh\u01b0ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p h\u01a1n.<\/li>\n\n<li><strong><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-304\/\">L\u1edbp 304<\/a><\/strong>: Th\u00e9p kh\u00f4ng g\u1ec9 Austenit c\u00f3 h\u00e0m l\u01b0\u1ee3ng niken cao h\u01a1n. N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi v\u00e0 c\u00f3 th\u1ec3 thay th\u1ebf 431, n\u01a1i kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n quan tr\u1ecdng h\u01a1n \u0111\u1ed9 b\u1ec1n.<\/li>\n\n<li><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-316\/\"><strong>L\u1edbp 316<\/strong><\/a>: Ch\u1ee9a nhi\u1ec1u molypden h\u01a1n 431. C\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng bi\u1ec3n, nh\u01b0ng c\u00f3 \u0111\u1ed9 b\u1ec1n th\u1ea5p h\u01a1n.<\/li><\/ol><p>Nh\u1eefng t\u00f9y ch\u1ecdn n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn t\u00f9y thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 v\u1ec1 \u0111\u1ed9 b\u1ec1n, kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 ho\u1eb7c \u0111\u1ed9 b\u1ec1n.<\/p><h2 class=\"wp-block-heading\">\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 431<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 431 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi \u0111\u1ed9 b\u1ec1n k\u00e9o cao, kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 v\u01b0\u1ee3t tr\u1ed9i v\u00e0 \u0111\u1ed9 c\u1ee9ng ch\u1eafc, l\u00fd t\u01b0\u1edfng cho nh\u1eefng \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.<\/p><h3 class=\"wp-block-heading\"><strong>1. \u0110\u1ed9 b\u1ec1n k\u00e9o cao<\/strong><\/h3><p>Th\u00e9p 431 c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o cao h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi nhi\u1ec1u lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 kh\u00e1c, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi v\u1eadt li\u1ec7u b\u1ec1n, ch\u1eafc, ch\u1eb3ng h\u1ea1n nh\u01b0 trong c\u00e1c th\u00e0nh ph\u1ea7n h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 h\u00e0ng h\u1ea3i.<\/p><h3 class=\"wp-block-heading\"><strong>2. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi<\/strong><\/h3><p>Nh\u1edd h\u00e0m l\u01b0\u1ee3ng crom cao, th\u00e9p kh\u00f4ng g\u1ec9 431 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng c\u00f3 t\u00ednh \u0103n m\u00f2n nh\u1eb9 nh\u01b0 m\u00f4i tr\u01b0\u1eddng bi\u1ec3n v\u00e0 c\u00f4ng nghi\u1ec7p.<\/p><h3 class=\"wp-block-heading\"><strong>3. \u0110\u1ed9 c\u1ee9ng t\u1ed1t<\/strong><\/h3><p>431 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u00e1ng k\u1ec3 <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/properties\/hardness\/\">\u0111\u1ed9 c\u1ee9ng<\/a> th\u00f4ng qua x\u1eed l\u00fd nhi\u1ec7t, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c b\u1ed9 ph\u1eadn c\u1ea7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n nh\u01b0 tr\u1ee5c, bu l\u00f4ng v\u00e0 ch\u1ed1t.<\/p><h3 class=\"wp-block-heading\"><strong>4. T\u00ednh ch\u1ea5t t\u1eeb t\u00ednh<\/strong><\/h3><p>Kh\u00f4ng gi\u1ed1ng nh\u01b0 th\u00e9p kh\u00f4ng g\u1ec9 austenit, 431 l\u00e0 <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/properties\/magnetic\/\">t\u1eeb t\u00ednh<\/a>, c\u00f3 th\u1ec3 c\u00f3 l\u1ee3i trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng c\u01a1 h\u1ecdc v\u00e0 \u0111i\u1ec7n.<\/p><h3 class=\"wp-block-heading\"><strong>5. Hi\u1ec7u su\u1ea5t x\u1eed l\u00fd nhi\u1ec7t<\/strong><\/h3><p>Th\u00e9p 431 ph\u1ea3n \u1ee9ng t\u1ed1t v\u1edbi qu\u00e1 tr\u00ecnh t\u00f4i v\u00e0 ram, cho ph\u00e9p \u0111i\u1ec1u ch\u1ec9nh c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/p><h3 class=\"wp-block-heading\"><strong>6. Kh\u1ea3 n\u0103ng d\u1eadp t\u1eaft<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>T\u0103ng \u0111\u1ed9 c\u1ee9ng<\/strong>:Sau khi t\u00f4i v\u00e0 ram, \u0111\u1ed9 c\u1ee9ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 431 c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 360 \u0111\u1ebfn 480HB, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi Rc44.<\/li>\n\n<li><strong>Ph\u01b0\u01a1ng ph\u00e1p l\u00e0m m\u00e1t<\/strong>:C\u00e1c ph\u1ea7n nh\u1ecf c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed, trong khi c\u00e1c ph\u1ea7n l\u1edbn h\u01a1n c\u1ea7n \u0111\u01b0\u1ee3c t\u00f4i b\u1eb1ng d\u1ea7u \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng xuy\u00ean su\u1ed1t t\u1ed1i \u01b0u.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>7. \u0110\u1eb7c \u0111i\u1ec3m nhi\u1ec7t \u0111\u1ed9 th\u1ea5p<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>Nhi\u1ec7t \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed5i gi\u00f2n th\u1ea5p h\u01a1n<\/strong>:Th\u00e9p kh\u00f4ng g\u1ec9 431 tr\u1edf n\u00ean c\u1ee9ng h\u01a1n \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, gi\u00fap ch\u1ed1ng va \u0111\u1eadp m\u00e0 kh\u00f4ng b\u1ecb v\u1ee1.<\/li>\n\n<li><strong>C\u1ea5u tr\u00fac vi m\u00f4<\/strong>:\u1ede nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, c\u1ea5u tr\u00fac bao g\u1ed3m martensit v\u00e0 m\u1ed9t s\u1ed1 ferit, gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>H\u1ea1n ch\u1ebf<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>H\u00e0n kh\u00f3<\/strong>:Do h\u00e0m l\u01b0\u1ee3ng carbon cao n\u00ean th\u00e9p kh\u00f4ng g\u1ec9 431 r\u1ea5t kh\u00f3 h\u00e0n v\u00e0 c\u1ea7n x\u1eed l\u00fd nhi\u1ec7t tr\u01b0\u1edbc v\u00e0 sau khi h\u00e0n \u0111\u1ec3 tr\u00e1nh n\u1ee9t.<\/li>\n\n<li><strong>D\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng b\u1edfi axit m\u1ea1nh<\/strong>:M\u1eb7c d\u00f9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, nh\u01b0ng 431 d\u1ec5 b\u1ecb r\u1ed7 v\u00e0 \u0103n m\u00f2n khe h\u1edf trong m\u00f4i tr\u01b0\u1eddng axit m\u1ea1nh, h\u1ea1n ch\u1ebf vi\u1ec7c s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng ti\u1ebfp x\u00fac v\u1edbi h\u00f3a ch\u1ea5t m\u1ea1nh.<\/li><\/ul><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 431 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t nh\u01b0 th\u1ebf n\u00e0o?<\/h2><p>Qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t th\u00e9p kh\u00f4ng g\u1ec9 431 bao g\u1ed3m m\u1ed9t s\u1ed1 b\u01b0\u1edbc ch\u00ednh, m\u1ed7i b\u01b0\u1edbc \u0111\u1ec1u quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c \u0111\u1eb7c t\u00ednh cu\u1ed1i c\u00f9ng nh\u01b0 \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.<\/p><p><strong>1. S\u1ef1 tan ch\u1ea3y<\/strong>:Nguy\u00ean li\u1ec7u th\u00f4, ch\u1ee7 y\u1ebfu l\u00e0 s\u1eaft, crom, cacbon v\u00e0 niken, \u0111\u01b0\u1ee3c n\u1ea5u ch\u1ea3y trong l\u00f2 h\u1ed3 quang \u0111i\u1ec7n (EAF) \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/p><p><strong>2. \u0110\u00fac<\/strong>:Th\u00e9p l\u1ecfng \u0111\u01b0\u1ee3c \u0111\u1ed5 v\u00e0o khu\u00f4n \u0111\u1ec3 t\u1ea1o th\u00e0nh ph\u00f4i ho\u1eb7c t\u1ea5m, sau \u0111\u00f3 \u0111\u01b0\u1ee3c l\u00e0m ngu\u1ed9i v\u00e0 c\u1ee9ng l\u1ea1i.<\/p><p><strong>3. C\u00e1n n\u00f3ng<\/strong>:C\u00e1c t\u1ea5m th\u00e9p \u0111\u00e3 \u0111\u00f4ng \u0111\u1eb7c l\u1ea1i \u0111\u01b0\u1ee3c nung n\u00f3ng v\u00e0 c\u00e1n \u0111\u1ec3 gi\u1ea3m \u0111\u1ed9 d\u00e0y v\u00e0 \u0111\u1ecbnh h\u00ecnh th\u00e9p th\u00e0nh t\u1ea5m, thanh ho\u1eb7c c\u00e1c h\u00ecnh d\u1ea1ng c\u1ea7n thi\u1ebft kh\u00e1c.<\/p><p><strong>4. \u1ee6<\/strong>:Th\u00e9p c\u00e1n \u0111\u01b0\u1ee3c x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ec3 gi\u1ea3i ph\u00f3ng \u1ee9ng su\u1ea5t b\u00ean trong, l\u00e0m m\u1ec1m v\u1eadt li\u1ec7u v\u00e0 t\u0103ng kh\u1ea3 n\u0103ng gia c\u00f4ng. Qu\u00e1 tr\u00ecnh n\u00e0y bao g\u1ed3m vi\u1ec7c nung th\u00e9p \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 \u0111\u00e3 \u0111\u1eb7t v\u00e0 l\u00e0m ngu\u1ed9i d\u1ea7n.<\/p><p><strong>5. L\u00e0m c\u1ee9ng<\/strong>:\u0110\u1ec3 t\u0103ng \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 b\u1ec1n, th\u00e9p 431 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o qu\u00e1 tr\u00ecnh t\u00f4i, trong \u0111\u00f3 th\u00e9p \u0111\u01b0\u1ee3c l\u00e0m ngu\u1ed9i nhanh sau khi \u0111\u01b0\u1ee3c nung \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/p><p><strong>6. \u1ee6<\/strong>:Sau khi t\u00f4i, th\u00e9p \u0111\u01b0\u1ee3c ram b\u1eb1ng c\u00e1ch nung l\u1ea1i \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n r\u1ed3i l\u00e0m ngu\u1ed9i l\u1ea1i \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 d\u1ebbo dai cu\u1ed1i c\u00f9ng.<\/p><p><strong>7. T\u1ea9y c\u1eb7n<\/strong>:Sau khi x\u1eed l\u00fd nhi\u1ec7t, l\u1edbp v\u1ea3y b\u1ec1 m\u1eb7t h\u00ecnh th\u00e0nh trong qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn s\u1ebd \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf b\u1eb1ng c\u00e1ch ng\u00e2m chua ho\u1eb7c l\u00e0m s\u1ea1ch c\u01a1 h\u1ecdc.<\/p><p><strong>8. Ho\u00e0n thi\u1ec7n<\/strong>:Th\u00e9p \u0111\u01b0\u1ee3c gia c\u00f4ng v\u00e0 ho\u00e0n thi\u1ec7n theo k\u00edch th\u01b0\u1edbc ch\u00ednh x\u00e1c, th\u01b0\u1eddng th\u00f4ng qua qu\u00e1 tr\u00ecnh m\u00e0i ho\u1eb7c \u0111\u00e1nh b\u00f3ng, \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t mong mu\u1ed1n.<\/p><p><strong>9. Ki\u1ec3m tra v\u00e0 th\u1eed nghi\u1ec7m<\/strong>:S\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng ph\u1ea3i tr\u1ea3i qua qu\u00e1 tr\u00ecnh ki\u1ec3m tra v\u00e0 th\u1eed nghi\u1ec7m nghi\u00eam ng\u1eb7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u00e1p \u1ee9ng c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 h\u00f3a h\u1ecdc c\u1ea7n thi\u1ebft, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9 b\u1ec1n k\u00e9o, \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.<\/p><p>C\u00e1c quy tr\u00ecnh n\u00e0y \u0111\u1ea3m b\u1ea3o th\u00e9p kh\u00f4ng g\u1ec9 431 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 d\u1ebbo dai v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 c\u1ea7n thi\u1ebft cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a n\u00f3.<\/p><h2 class=\"wp-block-heading\">C\u00e1c t\u00f9y ch\u1ecdn x\u1eed l\u00fd ch\u00fang t\u00f4i cung c\u1ea5p cho SS 431<\/h2><p>T\u1ea1i SteelProGroup, ch\u00fang t\u00f4i cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 c\u00e1c t\u00f9y ch\u1ecdn gia c\u00f4ng v\u00e0 t\u00f9y ch\u1ec9nh s\u1ea3n ph\u1ea9m cho th\u00e9p kh\u00f4ng g\u1ec9 SS 431, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u hi\u1ec7u su\u1ea5t v\u00e0 nhu c\u1ea7u \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/p><h3 class=\"wp-block-heading\">Gia c\u00f4ng<\/h3><p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c t\u00f9y ch\u1ecdn x\u1eed l\u00fd chi ti\u1ebft m\u00e0 ch\u00fang t\u00f4i cung c\u1ea5p:<\/p><h4 class=\"wp-block-heading\"><strong>tan ch\u1ea3y<\/strong><\/h4><ul class=\"wp-block-list\"><li><strong>L\u00f2 h\u1ed3 quang \u0111i\u1ec7n (EAF)<\/strong>: S\u1ea3n xu\u1ea5t th\u00e9p ch\u1ea5t l\u01b0\u1ee3ng cao b\u1eb1ng c\u00e1ch n\u1ea5u ch\u1ea3y nguy\u00ean li\u1ec7u th\u00f4 b\u1eb1ng h\u1ed3 quang \u0111i\u1ec7n, \u0111\u1ea3m b\u1ea3o ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c th\u00e0nh ph\u1ea7n.<\/li>\n\n<li><strong>N\u1ea5u ch\u1ea3y c\u1ea3m \u1ee9ng ch\u00e2n kh\u00f4ng (VIM)<\/strong>: Lo\u1ea1i b\u1ecf t\u1ea1p ch\u1ea5t trong ch\u00e2n kh\u00f4ng, t\u1ea1o ra v\u1eadt li\u1ec7u s\u1ea1ch h\u01a1n, \u0111\u1ed3ng \u0111\u1ec1u h\u01a1n v\u1edbi \u00edt t\u1ea1p ch\u1ea5t h\u01a1n, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng.<\/li>\n\n<li><strong>Kh\u1eed cacbon b\u1eb1ng oxy argon (AOD)<\/strong>: Ph\u01b0\u01a1ng ph\u00e1p kh\u1eed cacbon b\u1eb1ng oxy v\u00e0 argon (AOD) tinh ch\u1ebf th\u00e9p b\u1eb1ng c\u00e1ch gi\u1ea3m cacbon, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c th\u00e0nh ph\u1ea7n mong mu\u1ed1n, l\u00fd t\u01b0\u1edfng \u0111\u1ec3 s\u1ea3n xu\u1ea5t th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ea5t l\u01b0\u1ee3ng cao nh\u01b0 431, v\u00ec n\u00f3 ki\u1ec3m so\u00e1t h\u00e0m l\u01b0\u1ee3ng h\u1ee3p kim v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t.<\/li><\/ul><h4 class=\"wp-block-heading\"><strong>X\u1eed l\u00fd nhi\u1ec7t<\/strong><\/h4><ul class=\"wp-block-list\"><li><strong>\u1ee6<\/strong>:Gi\u1ea3m \u0111\u1ed9 c\u1ee9ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 431 \u0111\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng gia c\u00f4ng v\u00e0 gi\u1ea3i ph\u00f3ng \u1ee9ng su\u1ea5t b\u00ean trong, th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf nhi\u1ec7t \u0111\u1ed9 815-900\u00b0C, gi\u00fap d\u1ec5 d\u00e0ng gia c\u00f4ng h\u01a1n \u1edf c\u00e1c giai \u0111o\u1ea1n sau.<\/li>\n\n<li><strong>L\u00e0m c\u1ee9ng<\/strong>: T\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n b\u1eb1ng c\u00e1ch nung th\u00e9p kh\u00f4ng g\u1ec9 431 \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 980-1065\u00b0C r\u1ed3i l\u00e0m ngu\u1ed9i nhanh, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 \u0111\u1ed9 b\u1ec1n cao.<\/li>\n\n<li><strong>L\u00e0m ngu\u1ed9i<\/strong>: \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 d\u1ebbo dai sau khi t\u00f4i, c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n v\u00e0 gi\u1ea3m \u0111\u1ed9 gi\u00f2n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf nhi\u1ec7t \u0111\u1ed9 600-650\u00b0C \u0111\u1ed1i v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 431, cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi c\u1ea3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 linh ho\u1ea1t.<\/li>\n\n<li><strong>L\u00e0m ngu\u1ed9i<\/strong>: L\u00e0m ngu\u1ed9i nhanh th\u00e9p kh\u00f4ng g\u1ec9 431 sau khi nung \u0111\u1ec3 gi\u1eef nguy\u00ean \u0111\u1ed9 c\u1ee9ng v\u00e0 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc, \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t nh\u1ea5t qu\u00e1n trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li><\/ul><h4 class=\"wp-block-heading\"><strong>L\u00e0m vi\u1ec7c l\u1ea1nh<\/strong><\/h4><ul class=\"wp-block-list\"><li><strong>C\u00e1n ngu\u1ed9i<\/strong>: Gi\u1ea3m \u0111\u1ed9 d\u00e0y v\u00e0 c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t m\u00e0 kh\u00f4ng c\u1ea7n gia nhi\u1ec7t, mang l\u1ea1i b\u1ec1 m\u1eb7t m\u1ecbn h\u01a1n, ch\u1eafc h\u01a1n.<\/li>\n\n<li><strong>V\u1ebd l\u1ea1nh<\/strong>: T\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n b\u1eb1ng c\u00e1ch k\u00e9o th\u00e9p qua khu\u00f4n, gi\u00fap ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd k\u00edch th\u01b0\u1edbc cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u00ednh x\u00e1c.<\/li>\n\n<li><strong>T\u1ea1o h\u00ecnh k\u00e9o gi\u00e3n<\/strong>: K\u00e9o gi\u00e3n v\u1eadt li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n nhi\u1ec7t, c\u1ea3i thi\u1ec7n c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc \u0111\u1ed3ng th\u1eddi \u0111\u1ecbnh h\u00ecnh v\u1eadt li\u1ec7u th\u00e0nh c\u00e1c h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p.<\/li><\/ul><h5 class=\"wp-block-heading\">Kh\u00e1c <strong>T\u00f9y ch\u1ecdn l\u00e0m vi\u1ec7c l\u1ea1nh kh\u00f4ng \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb cho th\u00e9p kh\u00f4ng g\u1ec9 431<\/strong><\/h5><ul class=\"wp-block-list\"><li><strong>V\u1ebd s\u00e2u<\/strong>: \u0110\u1ed9 d\u1ebbo h\u1ea1n ch\u1ebf c\u1ee7a th\u00e9p 431 khi\u1ebfn n\u00f3 d\u1ec5 b\u1ecb n\u1ee9t trong qu\u00e1 tr\u00ecnh k\u00e9o s\u00e2u, khi\u1ebfn n\u00f3 kh\u00f4ng ph\u00f9 h\u1ee3p cho quy tr\u00ecnh n\u00e0y.<\/li>\n\n<li><strong>U\u1ed1n cong \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p<\/strong>:Do \u0111\u1ed9 b\u1ec1n cao h\u01a1n v\u00e0 \u0111\u1ed9 d\u1ebbo th\u1ea5p h\u01a1n, vi\u1ec7c u\u1ed1n cong m\u00e0 kh\u00f4ng c\u00f3 \u0111\u1ee7 nhi\u1ec7t c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn n\u1ee9t.<\/li>\n\n<li><strong>L\u00e0m ngu\u1ed9i<\/strong>:\u0110\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 gi\u00f2n c\u1ee7a 431 sau khi l\u00e0m ngu\u1ed9i khi\u1ebfn n\u00f3 kh\u00f4ng th\u00edch h\u1ee3p \u0111\u1ec3 d\u1eadp v\u00ec c\u00f3 th\u1ec3 g\u00e2y ra g\u00e3y x\u01b0\u01a1ng.<\/li><\/ul><h4 class=\"wp-block-heading\"><strong>Gia c\u00f4ng c\u01a1 kh\u00ed<\/strong><\/h4><ul class=\"wp-block-list\"><li><strong>C\u1eaft<\/strong>:Ch\u00fang t\u00f4i cung c\u1ea5p d\u1ecbch v\u1ee5 c\u1eaft ch\u00ednh x\u00e1c b\u1eb1ng c\u01b0a ho\u1eb7c tia laser, mang l\u1ea1i nh\u1eefng \u0111\u01b0\u1eddng c\u1eaft s\u1ea1ch v\u00e0 ch\u00ednh x\u00e1c theo th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt t\u00f9y ch\u1ec9nh v\u1edbi m\u1ee9c hao h\u1ee5t v\u1eadt li\u1ec7u t\u1ed1i thi\u1ec3u.<\/li>\n\n<li><strong>Xay x\u00e1t<\/strong>:C\u00f4ng ngh\u1ec7 phay c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao \u0111\u1ea3m b\u1ea3o t\u1ea1o ra c\u00e1c b\u1ed9 ph\u1eadn ph\u1ee9c t\u1ea1p v\u1edbi k\u00edch th\u01b0\u1edbc ch\u00ednh x\u00e1c, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c h\u00ecnh d\u1ea1ng v\u00e0 thi\u1ebft k\u1ebf ph\u1ee9c t\u1ea1p.<\/li>\n\n<li><strong>Khoan<\/strong>: Khoan t\u00f9y ch\u1ec9nh \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 s\u00e2u l\u1ed7 ch\u00ednh x\u00e1c, \u0111\u1ea3m b\u1ea3o v\u1eeba kh\u00edt v\u1edbi bu l\u00f4ng, \u1ed1c v\u00edt ho\u1eb7c c\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u1ed1i kh\u00e1c.<\/li><\/ul><h4 class=\"wp-block-heading\"><strong>X\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/strong><\/h4><ul class=\"wp-block-list\"><li><strong>M\u00e0i<\/strong>: L\u00e0m m\u1ecbn b\u1ec1 m\u1eb7t th\u00f4 r\u00e1p v\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ho\u00e0n thi\u1ec7n \u0111\u1ed3ng \u0111\u1ec1u, c\u1ea3i thi\u1ec7n di\u1ec7n m\u1ea1o v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a th\u00e9p.<\/li>\n\n<li><strong>\u0110\u00e1nh b\u00f3ng<\/strong>: Th\u00eam l\u1edbp ho\u00e0n thi\u1ec7n ph\u1ea3n chi\u1ebfu, b\u00f3ng lo\u00e1ng, t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 t\u00ednh th\u1ea9m m\u1ef9, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n d\u1ec5 nh\u00ecn th\u1ea5y.<\/li>\n\n<li><strong>Ng\u00e2m chua<\/strong>:Lo\u1ea1i b\u1ecf t\u1ea1p ch\u1ea5t b\u1ec1 m\u1eb7t, ch\u1eb3ng h\u1ea1n nh\u01b0 oxit ho\u1eb7c c\u1eb7n, \u0111\u1ea3m b\u1ea3o b\u1ec1 m\u1eb7t s\u1ea1ch v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u00e1m d\u00ednh c\u1ee7a l\u1edbp ph\u1ee7.<\/li>\n\n<li><strong>th\u1ee5 \u0111\u1ed9ng h\u00f3a<\/strong>: C\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 b\u1eb1ng c\u00e1ch t\u1ea1o ra l\u1edbp ph\u1ee7 oxit b\u1ea3o v\u1ec7, gi\u00fap s\u1ea3n ph\u1ea9m ho\u00e0n h\u1ea3o khi s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li><\/ul><h4 class=\"wp-block-heading\"><strong>H\u00e0n<\/strong><\/h4><ul class=\"wp-block-list\"><li><strong>H\u00e0n TIG (Kh\u00ed tr\u01a1 vonfram)<\/strong>: Cung c\u1ea5p m\u1ed1i h\u00e0n ch\u00ednh x\u00e1c, ch\u1ea5t l\u01b0\u1ee3ng cao v\u1edbi m\u1ee9c \u0111\u1ed9 \u00f4 nhi\u1ec5m t\u1ed1i thi\u1ec3u, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c ph\u1ea7n m\u1ecfng ho\u1eb7c c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng.<\/li>\n\n<li><strong>H\u00e0n MIG (Kim lo\u1ea1i kh\u00ed tr\u01a1)<\/strong>: Hi\u1ec7u qu\u1ea3 khi n\u1ed1i c\u00e1c ph\u1ea7n d\u00e0y h\u01a1n v\u1edbi t\u1ed1c \u0111\u1ed9 l\u1eafng \u0111\u1ecdng cao, ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 k\u1ebft c\u1ea5u.<\/li>\n\n<li><strong>H\u00e0n \u0111i\u1ec7n tr\u1edf<\/strong>: S\u1eed d\u1ee5ng nhi\u1ec7t v\u00e0 \u00e1p su\u1ea5t \u0111\u1ec3 n\u1ed1i th\u00e9p m\u00e0 kh\u00f4ng c\u1ea7n v\u1eadt li\u1ec7u \u0111\u1ed9n, t\u1ea1o ra m\u1ed1i n\u1ed1i ch\u1eafc ch\u1eafn, s\u1ea1ch s\u1ebd cho nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/li><\/ul><h5 class=\"wp-block-heading\"><strong>C\u00e1c t\u00f9y ch\u1ecdn h\u00e0n kh\u00e1c kh\u00f4ng \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb cho th\u00e9p kh\u00f4ng g\u1ec9 431<\/strong><\/h5><ul class=\"wp-block-list\"><li><strong>H\u00e0n b\u1eb1ng kh\u00ed v\u00e0 h\u00e0n b\u1eb1ng CO2<\/strong>:Nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y kh\u00f3 th\u1ef1c hi\u1ec7n v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 431.<\/li>\n\n<li><strong>H\u00e0n nhi\u1ec7t \u0111\u1ed9 th\u1ea5p<\/strong>:H\u00e0n \u1edf nhi\u1ec7t \u0111\u1ed9 c\u1ef1c th\u1ea5p c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 d\u1ebbo dai v\u00e0 \u0111\u1ed9 b\u1ec1n.<\/li>\n\n<li><strong>Kh\u00f4ng c\u1ea7n l\u00e0m n\u00f3ng tr\u01b0\u1edbc<\/strong>:Vi\u1ec7c b\u1ecf qua b\u01b0\u1edbc x\u1eed l\u00fd gia nhi\u1ec7t tr\u01b0\u1edbc s\u1ebd l\u00e0m t\u0103ng nguy c\u01a1 gi\u00f2n v\u00e0 n\u1ee9t, do \u0111\u00f3, n\u00ean gia nhi\u1ec7t tr\u01b0\u1edbc \u0111\u1ed1i v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 431.<\/li><\/ul><h3 class=\"wp-block-heading\">H\u00ecnh d\u1ea1ng v\u00e0 h\u00ecnh th\u1ee9c ch\u00fang ta c\u00f3<\/h3><p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c t\u00f9y ch\u1ecdn v\u1ec1 h\u00ecnh d\u1ea1ng v\u00e0 ki\u1ec3u d\u00e1ng m\u00e0 ch\u00fang t\u00f4i cung c\u1ea5p:<\/p><ul class=\"wp-block-list\"><li><strong>Thanh<\/strong>:<ul class=\"wp-block-list\"><li><strong>H\u00ecnh d\u1ea1ng<\/strong>: Thanh tr\u00f2n, thanh vu\u00f4ng, thanh ph\u1eb3ng, thanh l\u1ee5c gi\u00e1c.<\/li>\n\n<li><strong>H\u00ecnh th\u1ee9c<\/strong>: Thanh \u0111\u00e1nh b\u00f3ng, thanh ng\u00e2m chua.<\/li><\/ul><\/li>\n\n<li><strong>T\u1ea5m v\u00e0 T\u1ea5m<\/strong>:<ul class=\"wp-block-list\"><li><strong>H\u00ecnh d\u1ea1ng<\/strong>: T\u1ea5m m\u1ecfng, t\u1ea5m d\u00e0y.<\/li>\n\n<li><strong>H\u00ecnh th\u1ee9c<\/strong>:T\u1ea5m ng\u00e2m chua, t\u1ea5m cu\u1ed9n, t\u1ea5m ph\u1eb3ng, t\u1ea5m \u0111\u1ee5c l\u1ed7, t\u1ea5m caro.<\/li><\/ul><\/li>\n\n<li><strong>D\u00e2y v\u00e0 D\u1ea3i<\/strong>:<ul class=\"wp-block-list\"><li><strong>H\u00ecnh d\u1ea1ng<\/strong>: D\u00e2y tr\u00f2n, d\u00e2y d\u1eb9t, d\u00e2y vu\u00f4ng.<\/li>\n\n<li><strong>H\u00ecnh th\u1ee9c<\/strong>: D\u00e2y k\u00e9o, d\u00e2y cu\u1ed9n, d\u00e2y xo\u1eafn.<\/li><\/ul><\/li>\n\n<li><strong>Cu\u1ed9n d\u00e2y<\/strong>:<ul class=\"wp-block-list\"><li><strong>H\u00ecnh d\u1ea1ng<\/strong>: Cu\u1ed9n d\u00e2y h\u1eb9p, cu\u1ed9n d\u00e2y r\u1ed9ng.<\/li>\n\n<li><strong>H\u00ecnh th\u1ee9c<\/strong>: Cu\u1ed9n c\u00e1n ngu\u1ed9i, cu\u1ed9n c\u00e1n n\u00f3ng, cu\u1ed9n \u1ee7.<\/li><\/ul><\/li>\n\n<li><strong>Thanh<\/strong>:<ul class=\"wp-block-list\"><li><strong>H\u00ecnh d\u1ea1ng<\/strong>: Thanh tr\u00f2n, thanh vu\u00f4ng.<\/li>\n\n<li><strong>H\u00ecnh th\u1ee9c<\/strong>: Thanh c\u00e1n n\u00f3ng, thanh k\u00e9o ngu\u1ed9i, thanh \u0111\u00e1nh b\u00f3ng.<\/li><\/ul><\/li>\n\n<li><strong>\u1ed0ng<\/strong>:<ul class=\"wp-block-list\"><li><strong>H\u00ecnh d\u1ea1ng<\/strong>: \u1ed0ng tr\u00f2n, \u1ed1ng vu\u00f4ng.<\/li>\n\n<li><strong>H\u00ecnh th\u1ee9c<\/strong>: \u1ed0ng li\u1ec1n m\u1ea1ch, \u1ed1ng h\u00e0n, \u1ed1ng \u0111\u00e1nh b\u00f3ng.<\/li><\/ul><\/li>\n\n<li><strong>\u1ed0ng<\/strong>:<ul class=\"wp-block-list\"><li><strong>H\u00ecnh d\u1ea1ng<\/strong>: \u1ed0ng tr\u00f2n, \u1ed1ng ch\u1eef nh\u1eadt.<\/li>\n\n<li><strong>H\u00ecnh th\u1ee9c<\/strong>: \u1ed0ng li\u1ec1n m\u1ea1ch, \u1ed1ng h\u00e0n, \u1ed1ng ng\u00e2m chua.<\/li><\/ul><\/li>\n\n<li><strong>H\u00ecnh th\u1ee9c gia c\u00f4ng t\u00f9y ch\u1ec9nh<\/strong>:Ch\u00fang t\u00f4i cung c\u1ea5p d\u1ecbch v\u1ee5 gia c\u00f4ng v\u00e0 \u0111\u1ecbnh h\u00ecnh t\u00f9y ch\u1ec9nh \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c y\u00eau c\u1ea7u c\u00f4ng nghi\u1ec7p c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/li><\/ul><p>V\u1edbi kh\u1ea3 n\u0103ng x\u1eed l\u00fd to\u00e0n di\u1ec7n v\u00e0 nhi\u1ec1u h\u00ecnh d\u1ea1ng kh\u00e1c nhau, ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o r\u1eb1ng s\u1ea3n ph\u1ea9m th\u00e9p kh\u00f4ng g\u1ec9 431 c\u1ee7a ch\u00fang t\u00f4i \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n h\u00e0ng \u0111\u1ea7u c\u1ee7a ng\u00e0nh.<\/p><h2 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 431<\/h2><p>Th\u00e9p kh\u00f4ng g\u1ec9 431 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n cao, \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9. N\u00f3 \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, h\u00e0ng h\u1ea3i, \u00f4 t\u00f4 v\u00e0 c\u00f4ng nghi\u1ec7p.<\/p><h3 class=\"wp-block-heading\"><strong>1. Ng\u00e0nh h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5<\/strong><\/h3><p>Th\u00e9p kh\u00f4ng g\u1ec9 431 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ng\u00e0nh h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00ec \u0111\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 ch\u1ed1ng m\u1ecfi.<\/p><ul class=\"wp-block-list\"><li><strong>B\u00e1nh \u0111\u00e1p m\u00e1y bay<\/strong>:\u0110\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a th\u00e9p 431 l\u00e0m cho n\u00f3 tr\u1edf n\u00ean ho\u00e0n h\u1ea3o cho c\u00e1c b\u1ed9 ph\u1eadn ph\u1ea3i ch\u1ecbu \u00e1p l\u1ef1c v\u00e0 va \u0111\u1eadp m\u1ea1nh.<\/li>\n\n<li><strong>Ch\u1ed1t<\/strong>:Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a n\u00f3 ph\u00f9 h\u1ee3p \u0111\u1ec3 s\u1eed d\u1ee5ng cho c\u00e1c chi ti\u1ebft c\u1ed1 \u0111\u1ecbnh quan tr\u1ecdng trong k\u1ebft c\u1ea5u m\u00e1y bay.<\/li>\n\n<li><strong>C\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a tuabin<\/strong>:Kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 duy tr\u00ec \u0111\u1ed9 b\u1ec1n l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a tuabin.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>2. Ng\u00e0nh h\u00e0ng h\u1ea3i<\/strong><\/h3><p>Nh\u1edd kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi trong m\u00f4i tr\u01b0\u1eddng bi\u1ec3n n\u00ean 431 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong ng\u00e0nh h\u00e0ng h\u1ea3i.<\/p><ul class=\"wp-block-list\"><li><strong>Tr\u1ee5c<\/strong>:431 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho tr\u1ee5c ch\u00e2n v\u1ecbt v\u00ec \u0111\u1ed9 b\u1ec1n cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi c\u1ee7a n\u01b0\u1edbc bi\u1ec3n.<\/li>\n\n<li><strong>Ch\u1ed1t thuy\u1ec1n<\/strong>:Bu l\u00f4ng v\u00e0 \u1ed1c v\u00edt ch\u1ed1ng \u0103n m\u00f2n l\u00e0m t\u1eeb th\u00e9p 431 l\u00fd t\u01b0\u1edfng \u0111\u1ec3 s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc m\u1eb7n.<\/li>\n\n<li><strong>Linh ki\u1ec7n m\u00e1y b\u01a1m<\/strong>: \u0110\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a v\u1eadt li\u1ec7u l\u00e0m cho n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn m\u00e1y b\u01a1m h\u00e0ng h\u1ea3i \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n l\u00e2u d\u00e0i.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>3. Ng\u00e0nh c\u00f4ng nghi\u1ec7p \u00f4 t\u00f4<\/strong><\/h3><p>\u0110\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng gia c\u00f4ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 431 khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn t\u1ed1t cho c\u00e1c \u1ee9ng d\u1ee5ng \u00f4 t\u00f4 \u0111\u00f2i h\u1ecfi kh\u1eaft khe.<\/p><ul class=\"wp-block-list\"><li><strong>Tr\u1ee5c<\/strong>: \u0110\u1ed9 b\u1ec1n cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ecfi l\u00fd t\u01b0\u1edfng cho tr\u1ee5c \u00f4 t\u00f4 ch\u1ecbu t\u1ea3i tr\u1ecdng v\u00e0 \u00e1p l\u1ef1c l\u1edbn.<\/li>\n\n<li><strong>B\u00e1nh r\u0103ng<\/strong>:C\u00e1c b\u00e1nh r\u0103ng l\u00e0m t\u1eeb th\u00e9p 431 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u01b0\u1ee3c m\u00f4-men xo\u1eafn v\u00e0 \u0111\u1ed9 m\u00e0i m\u00f2n cao m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t.<\/li>\n\n<li><strong>Linh ki\u1ec7n \u0111\u1ed9ng c\u01a1<\/strong>:C\u00e1c b\u1ed9 ph\u1eadn nh\u01b0 van v\u00e0 h\u1ec7 th\u1ed1ng phun nhi\u00ean li\u1ec7u \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i t\u1eeb \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a v\u1eadt li\u1ec7u.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>4. Thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p<\/strong><\/h3><p>Trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p, th\u00e9p kh\u00f4ng g\u1ec9 431 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf c\u00e1c b\u1ed9 ph\u1eadn \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 ch\u1ecbu \u0111\u01b0\u1ee3c \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.<\/p><ul class=\"wp-block-list\"><li><strong>Van<\/strong>: \u0110\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a v\u1eadt li\u1ec7u l\u00e0m cho n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho th\u00e2n van v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn trong ng\u00e0nh c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t v\u00e0 d\u1ea7u m\u1ecf.<\/li>\n\n<li><strong>M\u00e1y b\u01a1m v\u00e0 piston<\/strong>: \u0110\u1ed9 b\u1ec1n c\u1ee7a 431 khi ch\u1ecbu \u00e1p l\u1ef1c v\u00e0 ti\u1ebfp x\u00fac v\u1edbi ch\u1ea5t l\u1ecfng \u0103n m\u00f2n khi\u1ebfn n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi tr\u1ee5c b\u01a1m v\u00e0 thanh piston.<\/li>\n\n<li><strong>D\u1ee5ng c\u1ee5 c\u1eaft<\/strong>: Kh\u1ea3 n\u0103ng gi\u1eef \u0111\u1ed9 s\u1eafc b\u00e9n v\u00e0 ch\u1ed1ng m\u00e0i m\u00f2n d\u01b0\u1edbi \u00e1p l\u1ef1c l\u1edbn c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 431 khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng \u0111\u1ec3 s\u1ea3n xu\u1ea5t d\u1ee5ng c\u1ee5 c\u1eaft.<\/li><\/ul><p>Th\u00e9p kh\u00f4ng g\u1ec9 431 c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong <strong>d\u1ea7u v\u00e0 kh\u00ed \u0111\u1ed1t<\/strong>, <strong>thu\u1ed9c v\u1ec1 y h\u1ecdc<\/strong>, <strong>ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m<\/strong>, V\u00e0 <strong>d\u01b0\u1ee3c ph\u1ea9m<\/strong> c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 s\u1ea1ch.<\/p><h2 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa th\u00e9p 316 v\u00e0 th\u00e9p 431 l\u00e0 g\u00ec?<\/h2><p>316 l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 austenit c\u00f3 h\u00e0m l\u01b0\u1ee3ng crom v\u00e0 niken cao, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng bi\u1ec3n. 431, m\u1ed9t lo\u1ea1i th\u00e9p martensitic, c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng cao h\u01a1n nh\u01b0ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p h\u01a1n so v\u1edbi 316.<\/p><h2 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa th\u00e9p kh\u00f4ng g\u1ec9 420 v\u00e0 431 l\u00e0 g\u00ec?<\/h2><p>Th\u00e9p 420 ch\u1ee9a nhi\u1ec1u carbon h\u01a1n, khi\u1ebfn th\u00e9p n\u00e0y c\u1ee9ng h\u01a1n v\u00e0 ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t h\u01a1n sau khi x\u1eed l\u00fd nhi\u1ec7t nh\u01b0ng \u0111\u1ed9 d\u1ebbo dai th\u1ea5p h\u01a1n. Th\u00e9p 431 c\u00f3 \u0111\u1ed9 d\u1ebbo dai t\u1ed5ng th\u1ec3 cao h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n nh\u1edd h\u00e0m l\u01b0\u1ee3ng crom cao h\u01a1n, khi\u1ebfn th\u00e9p n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t h\u01a1n.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 431 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng kh\u00f4ng?<\/h2><p>C\u00f3, th\u00e9p kh\u00f4ng g\u1ec9 431 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng th\u00f4ng qua x\u1eed l\u00fd nhi\u1ec7t, c\u1ee5 th\u1ec3 l\u00e0 l\u00e0m ngu\u1ed9i v\u00e0 ram, gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 b\u1ec1n.<\/p><h2 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa th\u00e9p kh\u00f4ng g\u1ec9 430 v\u00e0 431 l\u00e0 g\u00ec?<\/h2><p><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-430\/\">430<\/a> l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 ferritic \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t v\u00e0 d\u1ec5 t\u1ea1o h\u00ecnh, nh\u01b0ng c\u00f3 \u0111\u1ed9 b\u1ec1n th\u1ea5p h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i kh\u00e1c. 431 l\u00e0 th\u00e9p martensitic, c\u00f3 \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 c\u1ee9ng cao h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng kh\u00f3 kh\u0103n h\u01a1n.<\/p><h2 class=\"wp-block-heading\">T\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 431 l\u00e0 g\u00ec?<\/h2><p>C\u00e1c l\u1edbp t\u01b0\u01a1ng \u0111\u01b0\u01a1ng bao g\u1ed3m <strong>SUS431<\/strong> \u1edf Nh\u1eadt B\u1ea3n, <strong>1Cr17Ni2<\/strong> \u1edf Trung Qu\u1ed1c, <strong>X17CrNi16-2<\/strong> \u1edf EU, <strong>1.4057<\/strong> \u1edf \u0110\u1ee9c v\u00e0 <strong>14Kh17N2<\/strong> \u1edf Nga.<\/p><h2 class=\"wp-block-heading\">Nh\u00e0 s\u1ea3n xu\u1ea5t th\u00e9p kh\u00f4ng g\u1ec9 431 chuy\u00ean nghi\u1ec7p<\/h2><p><a href=\"https:\/\/steelprogroup.com\/vi\">T\u1eadp \u0111o\u00e0n SteelPRO<\/a> l\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 cung c\u1ea5p gi\u1ea3i ph\u00e1p cho th\u00e9p chuy\u00ean d\u1ee5ng, cung c\u1ea5p d\u1ecbch v\u1ee5 t\u00f9y ch\u1ec9nh v\u1edbi \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng 100%! H\u00e3y ch\u1ecdn th\u00e9p kh\u00f4ng g\u1ec9 431 c\u1ee7a ch\u00fang t\u00f4i, ch\u00fang t\u00f4i c\u00f3 th\u1ec3 cung c\u1ea5p:<\/p><ul class=\"wp-block-list\"><li><strong>\u0110\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 b\u1ec1n cao<\/strong>:Th\u00e9p kh\u00f4ng g\u1ec9 431 c\u1ee7a ch\u00fang t\u00f4i c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o tuy\u1ec7t v\u1eddi, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu \u1ee9ng su\u1ea5t cao.<\/li>\n\n<li><strong>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi<\/strong>:Th\u00e9p kh\u00f4ng g\u1ec9 431 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi, l\u00fd t\u01b0\u1edfng cho m\u00f4i tr\u01b0\u1eddng bi\u1ec3n v\u00e0 h\u00f3a ch\u1ea5t.<\/li>\n\n<li><strong>Gia c\u00f4ng ch\u00ednh x\u00e1c<\/strong>:Th\u00e9p kh\u00f4ng g\u1ec9 431 c\u1ee7a ch\u00fang t\u00f4i c\u00f3 h\u00ecnh d\u1ea1ng th\u00edch h\u1ee3p cho gia c\u00f4ng ch\u00ednh x\u00e1c, \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng h\u00e0ng \u0111\u1ea7u.<\/li>\n\n<li><strong>Ho\u00e0n thi\u1ec7n c\u00f3 th\u1ec3 t\u00f9y ch\u1ec9nh<\/strong>:C\u00e1c t\u00f9y ch\u1ecdn nh\u01b0 \u0111\u00e1nh b\u00f3ng, ng\u00e2m chua v\u00e0 \u1ee7 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00f9y ch\u1ec9nh \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/li>\n\n<li><strong>M\u1ed9t lo\u1ea1t c\u00e1c h\u00ecnh d\u1ea1ng \u0111\u1ec3 l\u1ef1a ch\u1ecdn<\/strong>: Thanh, que, t\u1ea5m, l\u00e1, cu\u1ed9n, \u1ed1ng v\u00e0 nhi\u1ec1u lo\u1ea1i kh\u00e1c \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhi\u1ec1u nhu c\u1ea7u c\u00f4ng nghi\u1ec7p kh\u00e1c nhau.<br><strong>T\u00f9y ch\u1ecdn x\u1eed l\u00fd nhi\u1ec7t ti\u00ean ti\u1ebfn<\/strong>: Quy tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t t\u00f9y ch\u1ec9nh \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a v\u1eadt li\u1ec7u.<\/li>\n\n<li><strong>Chu\u1ed7i cung \u1ee9ng to\u00e0n c\u1ea7u<\/strong>: Giao h\u00e0ng to\u00e0n c\u1ea7u \u0111\u00e1ng tin c\u1eady v\u1edbi c\u00e1c l\u1ef1a ch\u1ecdn v\u1eadn chuy\u1ec3n c\u1ea1nh tranh.<br><strong>Tu\u00e2n th\u1ee7 v\u00e0 ch\u1ee9ng nh\u1eadn c\u1ee7a ng\u00e0nh<\/strong>: S\u1ea3n ph\u1ea9m \u0111\u1ea1t ti\u00eau chu\u1ea9n ASTM, \u0111\u01b0\u1ee3c SGS\/TUV ch\u1ee9ng nh\u1eadn v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c.<\/li><\/ul><p><a href=\"https:\/\/steelprogroup.com\/vi\/contact-us\/\">Li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i ngay h\u00f4m nay<\/a> \u0111\u1ec3 g\u1eedi y\u00eau c\u1ea7u d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n v\u00e0 tr\u1ea3i nghi\u1ec7m c\u00e1c gi\u1ea3i ph\u00e1p th\u00e9p kh\u00f4ng g\u1ec9 431 c\u00f9ng c\u00e1c d\u1ecbch v\u1ee5 t\u00f9y ch\u1ec9nh c\u1ee7a ch\u00fang t\u00f4i!<\/p>","protected":false},"excerpt":{"rendered":"<p>Th\u00e9p kh\u00f4ng g\u1ec9 431 l\u00e0 h\u1ee3p kim martensitic linh ho\u1ea1t, b\u1ec1n b\u1ec9, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9, \u0111\u1ed9 d\u1ebbo dai v\u00e0 d\u1ec5 t\u1ea1o h\u00ecnh v\u01b0\u1ee3t tr\u1ed9i. [\u2026]<\/p>","protected":false},"author":1,"featured_media":11615,"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":[4191,112],"tags":[],"class_list":["post-11627","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grades","category-stainless-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/11627","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=11627"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/11627\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/11615"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=11627"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=11627"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=11627"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}