{"id":21410,"date":"2025-03-16T06:01:00","date_gmt":"2025-03-15T22:01:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=21410"},"modified":"2025-03-17T10:18:14","modified_gmt":"2025-03-17T02:18:14","slug":"maraging-steel-guide","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/alloy-steel\/maraging-steel-guide\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn Maraging Steel"},"content":{"rendered":"<p class=\"c4\"><span class=\"c2\">Th\u00e9p Maraging l\u00e0 anh h\u00f9ng b\u00ed m\u1eadt \u0111\u1eb1ng sau t\u00ean l\u1eeda, d\u1ee5ng c\u1ee5 y t\u1ebf v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn c\u00f4ng nghi\u1ec7p si\u00eau b\u1ec1n. Kh\u00f4ng gi\u1ed1ng nh\u01b0 th\u00e9p th\u00f4ng th\u01b0\u1eddng, n\u00f3 c\u00f3 \u0111\u01b0\u1ee3c s\u1ee9c m\u1ea1nh si\u00eau ph\u00e0m th\u00f4ng qua qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t \u0111\u1eb7c bi\u1ec7t, ch\u1ee9 kh\u00f4ng ph\u1ea3i carbon. <\/span><\/p><p class=\"c4\"><span class=\"c2\">T\u1ea1i SteelPro Group, ch\u00fang t\u00f4i \u0111\u00e3 gi\u00fap c\u00e1c k\u1ef9 s\u01b0 s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u n\u00e0y \u0111\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng th\u00e1ch th\u1ee9c kh\u00f3 kh\u0103n trong h\u01a1n 20 n\u0103m qua. Trong b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd t\u00ecm hi\u1ec3u \u0111i\u1ec1u g\u00ec l\u00e0m n\u00ean s\u1ef1 \u0111\u1ed9c \u0111\u00e1o c\u1ee7a th\u00e9p maraging, nh\u1eefng \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a n\u00f3 v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3.<\/span><\/p><h2 class=\"wp-block-heading c4 c8\" id=\"h.sovzh6gsi4ou\"><span class=\"c26\">Th\u00e9p Maraging l\u00e0 g\u00ec?<\/span><\/h2><p class=\"c4\"><span class=\"c2\">Th\u00e9p maraging l\u00e0 h\u1ee3p kim si\u00eau b\u1ec1n v\u1edbi h\u00e0m l\u01b0\u1ee3ng carbon g\u1ea7n nh\u01b0 b\u1eb1ng kh\u00f4ng (&lt;0,03%). N\u00f3 \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb n\u1ec1n s\u1eaft-niken, k\u1ebft h\u1ee3p v\u1edbi coban, molypden v\u00e0 titan. Kh\u00f4ng gi\u1ed1ng nh\u01b0 th\u00e9p th\u00f4ng th\u01b0\u1eddng, v\u1ed1n s\u1eed d\u1ee5ng carbon \u0111\u1ec3 t\u0103ng \u0111\u1ed9 c\u1ee9ng, th\u00e9p maraging c\u00f3 \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n th\u00f4ng qua qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t. Trong qu\u00e1 tr\u00ecnh n\u00e0y, c\u00e1c h\u1ea1t nh\u1ecf nh\u01b0 Ni\u2083Mo h\u00ecnh th\u00e0nh, kh\u00f3a ch\u1eb7t c\u1ea5u tr\u00fac l\u1ea1i v\u1edbi nhau. Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 &quot;l\u00e3o h\u00f3a&quot;.<\/span><\/p><p class=\"c4\"><span class=\"c2\">\u1ede d\u1ea1ng th\u00f4, th\u00e9p maraging \u0111\u1ee7 m\u1ec1m \u0111\u1ec3 d\u1ec5 d\u00e0ng c\u1eaft ho\u1eb7c \u0111\u1ecbnh h\u00ecnh, v\u1edbi \u0111\u1ed9 c\u1ee9ng RC30-35. Nh\u01b0ng sau khi l\u00e3o h\u00f3a, n\u00f3 chuy\u1ec3n th\u00e0nh m\u1ed9t v\u1eadt li\u1ec7u c\u1ef1c k\u1ef3 b\u1ec1n v\u00e0 ch\u1ed1ng va \u0111\u1eadp. \u0110i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 ho\u00e0n h\u1ea3o cho:<\/span><\/p><ul class=\"wp-block-list c14 lst-kix_dpv1gn83yrv8-0 start\"><li><span class=\"c2\">C\u00e1c b\u1ed9 ph\u1eadn h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 c\u1ea7n \u0111\u1ed9 b\u1ec1n nh\u1eb9<\/span><\/li>\n\n<li><span class=\"c2\">Khu\u00f4n m\u1eabu ch\u00ednh x\u00e1c \u0111\u00f2i h\u1ecfi h\u00ecnh d\u1ea1ng ch\u00ednh x\u00e1c<\/span><\/li>\n\n<li><span class=\"c2\">C\u00e1c th\u00e0nh ph\u1ea7n quan tr\u1ecdng m\u00e0 h\u1ecfng h\u00f3c kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn<\/span><\/li><\/ul><h3 class=\"wp-block-heading c4 c8\" id=\"h.7gikto4owsc9\"><span class=\"c17\">T\u1ea1i sao l\u1ea1i c\u00f3 t\u00ean nh\u01b0 v\u1eady?<\/span><\/h3><ul class=\"wp-block-list c14 lst-kix_dwsuylhjhclw-0 start\"><li><span class=\"c2\">\u201cMar\u201d = Martensite: C\u1ea5u tr\u00fac ban \u0111\u1ea7u c\u1ee9ng nh\u01b0ng c\u00f3 th\u1ec3 gia c\u00f4ng \u0111\u01b0\u1ee3c.<\/span><\/li>\n\n<li><span class=\"c2\">\u201cL\u00e3o h\u00f3a\u201d = Qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t theo th\u1eddi gian gi\u00fap gi\u1eef nguy\u00ean \u0111\u1ed9 b\u1ec1n.<\/span><\/li><\/ul><h2 class=\"wp-block-heading c34\" id=\"h.7398zygjosas\"><span class=\"c26\">\u0110\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a th\u00e9p Maraging<\/span><\/h2><ul class=\"wp-block-list c14 lst-kix_3uv51juinlpg-0 start\"><li><span class=\"c5\">Nh\u00e0 v\u00f4 \u0111\u1ecbch s\u1ee9c m\u1ea1nh c\u00e2n n\u1eb7ng<\/span><span class=\"c2\">: Hi\u1ec7u su\u1ea5t cao h\u01a1n h\u1ee3p kim titan trong c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu t\u1ea3i.<\/span><\/li>\n\n<li><span class=\"c5\">\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t<\/span><span class=\"c2\">: Duy tr\u00ec k\u00edch th\u01b0\u1edbc ch\u00ednh x\u00e1c trong qu\u00e1 tr\u00ecnh l\u00e3o h\u00f3a.<\/span><\/li>\n\n<li><span class=\"c5\">Ch\u1ed1ng n\u1ee9t<\/span><span class=\"c2\">: Ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ef1c va \u0111\u1eadp t\u1ed1t h\u01a1n h\u1ea7u h\u1ebft c\u00e1c h\u1ee3p kim c\u00f3 \u0111\u1ed9 b\u1ec1n cao, ngay c\u1ea3 \u1edf nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi 0 \u0111\u1ed9.<\/span><\/li>\n\n<li><span class=\"c5\">Ph\u00f2ng ch\u1ed1ng \u0103n m\u00f2n<\/span><span class=\"c2\">: Kh\u1ea3 n\u0103ng ch\u1ed1ng gi\u00f2n do hydro v\u00e0 n\u1ee9t do \u0103n m\u00f2n \u1ee9ng su\u1ea5t v\u1ed1n c\u00f3.<\/span><\/li>\n\n<li><span class=\"c5\">B\u00e0n gia c\u00f4ng m\u1ec1m th\u00e2n thi\u1ec7n<\/span><span class=\"c2\">: D\u1ec5 d\u00e0ng \u0111\u1ecbnh h\u00ecnh\/c\u1eaft \u1edf tr\u1ea1ng th\u00e1i \u1ee7 (l\u00e3o h\u00f3a tr\u01b0\u1edbc).<\/span><\/li>\n\n<li><span class=\"c5\">C\u00f3 th\u1ec3 h\u00e0n m\u00e0 kh\u00f4ng c\u1ea7n nung n\u00f3ng tr\u01b0\u1edbc<\/span><span class=\"c2\">: Cho ph\u00e9p s\u1eeda ch\u1eefa t\u1ea1i ch\u1ed7 \u2013 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m hi\u1ebfm c\u00f3 \u1edf c\u00e1c kim lo\u1ea1i si\u00eau b\u1ec1n.<\/span><\/li><\/ul><h2 class=\"wp-block-heading c4 c8\" id=\"h.x5mib7akpys8\"><span class=\"c26\">T\u1ed5ng quan v\u1ec1 c\u00e1c lo\u1ea1i th\u00e9p Maraging<\/span><\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>C\u1ea5p<\/strong><\/td><td><strong>Ti\u00eau chu\u1ea9n AMS<\/strong><\/td><td><strong>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/strong><\/td><td><strong>H\u00e0m l\u01b0\u1ee3ng Coban<\/strong><\/td><td><strong>H\u00e0m l\u01b0\u1ee3ng Titan<\/strong><\/td><td><strong>\u1ee8ng d\u1ee5ng ti\u00eau bi\u1ec3u<\/strong><\/td><\/tr><tr><td>C200<\/td><td>AMS 6511<\/td><td>1.380MPa<\/td><td>8-9%<\/td><td>0.15-0.25%<\/td><td>Khu\u00f4n \u00e9p phun, gi\u00e1 \u0111\u1ee1 k\u1ebft c\u1ea5u<\/td><\/tr><tr><td>C250<\/td><td>AMS 6512<\/td><td>1.720 MPa<\/td><td>7-8.5%<\/td><td>0.3-0.5%<\/td><td>B\u00e1nh r\u0103ng h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, h\u1ec7 th\u1ed1ng th\u1ee7y l\u1ef1c<\/td><\/tr><tr><td>C300<\/td><td>AMS 6514<\/td><td>2.070 MPa<\/td><td>8.5-9.5%<\/td><td>0.5-0.8%<\/td><td>V\u1ecf \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda, khu\u00f4n \u0111\u00f9n<\/td><\/tr><tr><td>C350<\/td><td>AMS 6515*<\/td><td>2.410 MPa<\/td><td>11.5-12.5%<\/td><td>1.3-1.6%<\/td><td>M\u00e1y ly t\u00e2m h\u1ea1t nh\u00e2n, linh ki\u1ec7n qu\u00e2n s\u1ef1<\/td><\/tr><tr><td colspan=\"6\">*C350 y\u00eau c\u1ea7u ph\u1ea3i c\u00f3 gi\u1ea5y ph\u00e9p xu\u1ea5t kh\u1ea9u theo c\u00e1c th\u1ecfa thu\u1eadn kh\u00f4ng ph\u1ed5 bi\u1ebfn v\u0169 kh\u00ed h\u1ea1t nh\u00e2n.<\/td><\/tr><\/tbody><\/table><\/figure><p class=\"c4\"><span class=\"c2\">T\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i th\u00e9p \u0111\u1ec1u tr\u1ea3i qua qu\u00e1 tr\u00ecnh n\u1ea5u ch\u1ea3y ch\u00e2n kh\u00f4ng nghi\u00eam ng\u1eb7t (VIM\/VAR) \u0111\u1ec3 gi\u1ea3m thi\u1ec3u t\u1ea1p ch\u1ea5t. T\u1ea1i SteelPro Group, ch\u00fang t\u00f4i gi\u00fap kh\u00e1ch h\u00e0ng l\u1ef1a ch\u1ecdn lo\u1ea1i th\u00e9p t\u1ed1i \u01b0u d\u1ef1a tr\u00ean chi ph\u00ed, nhu c\u1ea7u ch\u1ebf t\u1ea1o v\u00e0 nhu c\u1ea7u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i.<\/span><\/p><h2 class=\"wp-block-heading c4 c8\" id=\"h.ei826o403ifj\"><span class=\"c26\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p Maraging<\/span><\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u0110i\u1ec3m s\u1ed1<\/strong><\/td><td><strong>C200<\/strong><\/td><td><strong>C250<\/strong><\/td><td><strong>C300<\/strong><\/td><td><strong>C350<\/strong><\/td><\/tr><tr><td><strong>Niken (Ni)<\/strong><\/td><td>17,0\u201319,0<\/td><td>17,0\u201319,0<\/td><td>18,0\u201319,0<\/td><td>18,0\u201319,0<\/td><\/tr><tr><td><strong>Coban (Co)<\/strong><\/td><td>8,0\u20139,0<\/td><td>7,0\u20138,5<\/td><td>8,5\u20139,5<\/td><td>11,5\u201312,5<\/td><\/tr><tr><td><strong>Molip\u0111en (Mo)<\/strong><\/td><td>3,0\u20133,5<\/td><td>4.6\u20135.2<\/td><td>4.6\u20135.2<\/td><td>4.6\u20135.2<\/td><\/tr><tr><td><strong>Titan (Ti)<\/strong><\/td><td>0,15\u20130,25<\/td><td>0,3\u20130,5<\/td><td>0,5\u20130,8<\/td><td>1,3\u20131,6<\/td><\/tr><tr><td><strong>Nh\u00f4m (Al)<\/strong><\/td><td>0,05\u20130,15<\/td><td>0,05\u20130,15<\/td><td>0,05\u20130,15<\/td><td>0,05\u20130,15<\/td><\/tr><tr><td><strong>Cacbon (C)<\/strong><\/td><td>\u22640,03<\/td><td>\u22640,03<\/td><td>\u22640,03<\/td><td>\u22640,03<\/td><\/tr><tr><td><strong>Silic (Si)<\/strong><\/td><td>\u22640,10<\/td><td>\u22640,10<\/td><td>\u22640,10<\/td><td>\u22640,10<\/td><\/tr><tr><td><strong>Mangan (Mn)<\/strong><\/td><td>\u22640,10<\/td><td>\u22640,10<\/td><td>\u22640,10<\/td><td>\u22640,10<\/td><\/tr><tr><td><strong>S\u1eaft (Fe)<\/strong><\/td><td>S\u1ef1 c\u00e2n b\u1eb1ng<\/td><td>S\u1ef1 c\u00e2n b\u1eb1ng<\/td><td>S\u1ef1 c\u00e2n b\u1eb1ng<\/td><td>S\u1ef1 c\u00e2n b\u1eb1ng<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading c4 c8\" id=\"h.aoaybovkfuj0\"><span class=\"c26\">T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p Maraging<\/span><\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>C200<\/strong><\/td><td><strong>C250<\/strong><\/td><td><strong>C300<\/strong><\/td><td><strong>C350<\/strong><\/td><\/tr><tr><td><strong>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/strong><\/td><td>1.379 MPa (200 ksi)<\/td><td>1.724 MPa (250 ksi)<\/td><td>2.068 MPa (300 ksi)<\/td><td>2.413 MPa (350 ksi)<\/td><\/tr><tr><td><strong>Gi\u1edbi h\u1ea1n ch\u1ea3y (0,2%)<\/strong><\/td><td>1.724 MPa (250 ksi)<\/td><td>1.930 MPa (280 ksi)<\/td><td>2.275 MPa (330 ksi)<\/td><td>2.620 MPa (380 ksi)<\/td><\/tr><tr><td><strong>\u0110\u1ed9 gi\u00e3n d\u00e0i (%)<\/strong><\/td><td>11\u201315%<\/td><td>10\u201312%<\/td><td>8\u201310%<\/td><td>6\u20138%<\/td><\/tr><tr><td><strong>Gi\u1ea3m Di\u1ec7n T\u00edch (%)<\/strong><\/td><td>50\u201360%<\/td><td>45\u201355%<\/td><td>40\u201350%<\/td><td>25\u201335%<\/td><\/tr><tr><td><strong>\u0110\u1ed9 c\u1ee9ng (Gi\u00e0 h\u00f3a, HRC)<\/strong><\/td><td>30\u201335 HRC<\/td><td>50 HRC<\/td><td>54 HRC<\/td><td>58 HRC<\/td><\/tr><tr><td><strong>\u0110\u1ed9 b\u1ec1n g\u00e3y (KIC)<\/strong><\/td><td>175 MPa\u00b7m\u00b9\u2044\u00b2 (160 ksi\u221ain)<\/td><td>&#8211;<\/td><td>&#8211;<\/td><td>&#8211;<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading c4 c8\" id=\"h.cjj6q62rl3h\"><span class=\"c26\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a th\u00e9p Maraging<\/span><\/h2><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><strong>T\u1ec9 tr\u1ecdng<\/strong><\/td><td>8,1 g\/cm\u00b3<\/td><td>0,292 lb\/in\u00b3<\/td><\/tr><tr><td><strong>\u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/strong><\/td><td>1.413\u00b0C<\/td><td>2.575\u00b0F<\/td><\/tr><tr><td><strong>\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/strong><\/td><td>25,5 W\/m\u00b7K<\/td><td>17,7 BTU\u00b7in\/gi\u1edd\u00b7ft\u00b2\u00b7\u00b0F<\/td><\/tr><tr><td><strong>H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t<\/strong><\/td><td>11,3\u00d710\u207b\u2076 K\u207b\u00b9 (20\u2013100\u00b0C)<\/td><td>6,3\u00d710\u207b\u2076 in\/in\u00b7\u00b0F (68\u2013212\u00b0F)<\/td><\/tr><tr><td><strong>Nhi\u1ec7t dung ri\u00eang<\/strong><\/td><td>452 J\/kg\u00b7K<\/td><td>0,108 BTU\/lb\u00b7\u00b0F<\/td><\/tr><tr><td><strong>M\u00f4 \u0111un Young<\/strong><\/td><td>210 GPa<\/td><td>30\u00d710\u2076 psi<\/td><\/tr><tr><td><strong>M\u00f4 \u0111un c\u1eaft<\/strong><\/td><td>77 GPa<\/td><td>11,2\u00d710\u2076 psi<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading c34\" id=\"h.syd4m5ybpl6\">Maraging th\u00e9p<span class=\"c26\">&nbsp;\u1ee8ng d\u1ee5ng<\/span><\/h2><p class=\"c4\"><span class=\"c28 c5\">1. H\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 h\u00e0ng kh\u00f4ng<\/span><\/p><ul class=\"wp-block-list c14 lst-kix_r7ph7cxbu89z-0 start\"><li><span class=\"c2\">C\u00e1c th\u00e0nh ph\u1ea7n c\u1ea5u tr\u00fac: V\u1ecf \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda, c\u00e1c b\u1ed9 ph\u1eadn khung m\u00e1y bay nh\u1eb9, b\u00e1nh \u0111\u00e1p.<\/span><\/li>\n\n<li><span class=\"c2\">H\u1ec7 th\u1ed1ng \u0111\u1ed9ng c\u01a1: Tr\u1ee5c tua-bin ch\u1ecbu \u1ee9ng su\u1ea5t cao, b\u00e1nh r\u0103ng v\u00e0 ch\u1ed1t.<\/span><\/li>\n\n<li><span class=\"c2\">Ph\u1ea7n c\u1ee9ng v\u1ec7 tinh: C\u00e1c b\u1ed9 ph\u1eadn ch\u00ednh x\u00e1c \u0111\u00f2i h\u1ecfi t\u1ef7 l\u1ec7 \u0111\u1ed9 b\u1ec1n tr\u00ean tr\u1ecdng l\u01b0\u1ee3ng cao.<\/span><\/li><\/ul><p class=\"c4\"><span class=\"c28 c5\">2. D\u1ee5ng c\u1ee5 &amp; Khu\u00f4n m\u1eabu<\/span><\/p><ul class=\"wp-block-list c14 lst-kix_u46p9drtji9s-0 start\"><li><span class=\"c2\">Khu\u00f4n \u00e9p phun: Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u1ec3 s\u1ea3n xu\u1ea5t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn.<\/span><\/li>\n\n<li><span class=\"c2\">Khu\u00f4n \u0111\u00f9n: Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u01b0\u1ee3t tr\u1ed9i \u0111\u1ec3 t\u1ea1o h\u00ecnh kim lo\u1ea1i.<\/span><\/li>\n\n<li><span class=\"c2\">D\u1ee5ng c\u1ee5 r\u00e8n: Gi\u1eef nguy\u00ean \u0111\u1ed9 c\u1ee9ng d\u01b0\u1edbi t\u1ea3i tr\u1ecdng tu\u1ea7n ho\u00e0n c\u1ef1c l\u1edbn.<\/span><\/li><\/ul><p class=\"c4\"><span class=\"c28 c5\">3. Qu\u1ed1c ph\u00f2ng &amp; Qu\u00e2n s\u1ef1<\/span><\/p><ul class=\"wp-block-list c14 lst-kix_s72udy395ak6-0 start\"><li><span class=\"c2\">H\u1ec7 th\u1ed1ng v\u0169 kh\u00ed: Kim h\u1ecfa, c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a xe b\u1ecdc th\u00e9p.<\/span><\/li>\n\n<li><span class=\"c2\">\u1ee8ng d\u1ee5ng \u0111\u1ea1n \u0111\u1ea1o: L\u1edbp gi\u00e1p nh\u1eb9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp cao.<\/span><\/li><\/ul><p class=\"c4\"><span class=\"c28 c5\">4. N\u0103ng l\u01b0\u1ee3ng &amp; C\u00f4ng nghi\u1ec7p<\/span><\/p><ul class=\"wp-block-list c14 lst-kix_div1jargs9e8-0 start\"><li><span class=\"c2\">L\u00f2 ph\u1ea3n \u1ee9ng h\u1ea1t nh\u00e2n: Roto ly t\u00e2m \u0111\u1ec3 l\u00e0m gi\u00e0u uranium.<\/span><\/li>\n\n<li><span class=\"c2\">D\u1ea7u kh\u00ed: D\u1ee5ng c\u1ee5 khoan gi\u1ebfng (tr\u1ee5c khoan, van) ch\u1ed1ng \u0103n m\u00f2n H\u2082S.<\/span><\/li><\/ul><p class=\"c4\"><span class=\"c5 c28\">5. K\u1ef9 thu\u1eadt Y t\u1ebf &amp; Ch\u00ednh x\u00e1c<\/span><\/p><ul class=\"wp-block-list c14 lst-kix_a1b0pskcel84-0 start\"><li><span class=\"c2\">D\u1ee5ng c\u1ee5 ph\u1eabu thu\u1eadt: T\u00ednh ch\u1ea5t t\u01b0\u01a1ng th\u00edch sinh h\u1ecdc, kh\u00f4ng t\u1eeb t\u00ednh \u0111\u1ec3 t\u01b0\u01a1ng th\u00edch v\u1edbi MRI.<\/span><\/li>\n\n<li><span class=\"c2\">L\u00f2 xo hi\u1ec7u su\u1ea5t cao: Gi\u1eef nguy\u00ean \u0111\u1ed9 \u0111\u00e0n h\u1ed3i khi ch\u1ecbu \u00e1p l\u1ef1c l\u1eb7p \u0111i l\u1eb7p l\u1ea1i.<\/span><\/li><\/ul><p class=\"c4\"><span class=\"c28 c5\">6. H\u00e0ng th\u1ec3 thao v\u00e0 ti\u00eau d\u00f9ng<\/span><\/p><ul class=\"wp-block-list c14 lst-kix_ud3ato67ar2h-0 start\"><li><span class=\"c2\">Xe \u0111\u1ea1p cao c\u1ea5p: Khung (v\u00ed d\u1ee5: Reynolds 953) c\u00f3 \u0111\u1ed9 b\u1ec1n cao v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9 h\u01a1n.<\/span><\/li>\n\n<li><span class=\"c2\">G\u1eady \u0111\u00e1nh golf: \u0110\u1ea7u g\u1eady \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a v\u1ec1 \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp.<\/span><\/li><\/ul><h2 class=\"wp-block-heading c4 c8\" id=\"h.drwqidqli630\"><span class=\"c26\">Th\u00e9p Maraging \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t nh\u01b0 th\u1ebf n\u00e0o?<\/span><\/h2><p class=\"c4\"><span class=\"c2\">Th\u00e9p maraging \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t th\u00f4ng qua ba b\u01b0\u1edbc ch\u00ednh:<\/span><\/p><ol start=\"1\" class=\"wp-block-list c14 lst-kix_8gl4x61d0ej1-0 start\"><li>H\u1ee3p kim n\u00f3ng ch\u1ea3y<span class=\"c2\">:<\/span><\/li><\/ol><p class=\"c4\"><span class=\"c2\">S\u1eaft, niken, coban v\u00e0 c\u00e1c kim lo\u1ea1i kh\u00e1c c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao \u0111\u01b0\u1ee3c n\u1ea5u ch\u1ea3y trong ch\u00e2n kh\u00f4ng \u0111\u1ec3 lo\u1ea1i b\u1ecf t\u1ea1p ch\u1ea5t v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh \u0111\u1ed3ng nh\u1ea5t.<\/span><\/p><ol start=\"2\" class=\"wp-block-list c14 lst-kix_8gl4x61d0ej1-0\"><li>X\u1eed l\u00fd nhi\u1ec7t<span class=\"c2\">:<\/span><\/li><\/ol><p class=\"c4\">Dung d\u1ecbch \u1ee7<span class=\"c2\">: \u0110\u01b0\u1ee3c nung n\u00f3ng \u0111\u1ec3 h\u00f2a tan c\u00e1c nguy\u00ean t\u1ed1, sau \u0111\u00f3 l\u00e0m ngu\u1ed9i \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u1ea5u tr\u00fac martensite m\u1ec1m, d\u1ec5 gia c\u00f4ng.<\/span><\/p><p class=\"c4\">L\u00e3o h\u00f3a<span class=\"c2\">: \u0110\u01b0\u1ee3c nung \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n \u0111\u1ec3 t\u1ea1o ra c\u00e1c h\u1ea1t nh\u1ecf t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n (nh\u01b0 Ni\u2083Ti) b\u00ean trong th\u00e9p.<\/span><\/p><ol start=\"3\" class=\"wp-block-list c14 lst-kix_8gl4x61d0ej1-0\"><li>T\u1ea1o h\u00ecnh &amp; Ho\u00e0n thi\u1ec7n<span class=\"c2\">:<\/span><\/li><\/ol><p class=\"c4\"><span class=\"c2\">D\u1ec5 d\u00e0ng \u0111\u00fac (c\u00e1n, r\u00e8n ho\u1eb7c gia c\u00f4ng) trong khi v\u1eabn m\u1ec1m. Sau khi l\u00e3o h\u00f3a, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd b\u1ec1 m\u1eb7t t\u00f9y ch\u1ecdn (v\u00ed d\u1ee5: th\u1ea5m nit\u01a1) gi\u00fap t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n.<\/span><\/p><p class=\"c4\"><span class=\"c2\">Th\u00e9p Maraging c\u1ee7a SteelPro Group \u0111\u01b0\u1ee3c gia c\u00f4ng t\u1ea1i nh\u00e0 m\u00e1y theo \u0111\u00fang th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a b\u1ea1n, gi\u1ea3m thi\u1ec3u t\u1ed1i \u0111a s\u1ef1 ch\u1eadm tr\u1ec5 sau x\u1eed l\u00fd. \u0110\u1ed9i ng\u0169 c\u1ee7a ch\u00fang t\u00f4i c\u00f3 th\u1ec3 t\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh l\u00e0m vi\u1ec7c c\u1ee7a b\u1ea1n t\u1eeb kh\u00e2u n\u1ea5u ch\u1ea3y \u0111\u1ebfn th\u00e0nh ph\u1ea9m cu\u1ed1i c\u00f9ng.<\/span><\/p><h2 class=\"wp-block-heading c4 c8\" id=\"h.jbm2u61t42rw\"><span class=\"c26\">X\u1eed l\u00fd nhi\u1ec7t th\u00e9p Maraging<\/span><\/h2><p class=\"c4\"><span class=\"c2\">Th\u00e9p maraging \u0111\u1ea1t \u0111\u01b0\u1ee3c nh\u1eefng \u0111\u1eb7c t\u00ednh v\u01b0\u1ee3t tr\u1ed9i th\u00f4ng qua quy tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t. H\u00e0m l\u01b0\u1ee3ng carbon c\u1ef1c th\u1ea5p (&lt;0,03%) cho ph\u00e9p gia c\u00f4ng linh ho\u1ea1t m\u00e0 kh\u00f4ng b\u1ecb gi\u00f2n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c b\u01b0\u1edbc ch\u00ednh:<\/span><\/p><h3 class=\"wp-block-heading c4 c8\" id=\"h.6t6fkn7eg4up\"><span class=\"c17\">\u1ee6 dung d\u1ecbch: Chu\u1ea9n b\u1ecb n\u1ec1n m\u00f3ng<\/span><\/h3><p class=\"c4\"><span class=\"c5\">Th\u00f4ng s\u1ed1 quy tr\u00ecnh<\/span><span class=\"c2\">:<\/span><\/p><ul class=\"wp-block-list c14 lst-kix_kwxf3invdz2u-0 start\"><li><span class=\"c5\">Nhi\u1ec7t \u0111\u1ed9<\/span><span class=\"c2\">: 820\u00b0C (1.510\u00b0F)<\/span><\/li>\n\n<li><span class=\"c5\">Th\u1eddi gian ng\u00e2m<\/span><span class=\"c2\">: 15 ph\u00fat cho c\u00e1c ph\u1ea7n m\u1ecfng; 1 gi\u1edd cho m\u1ed7i 25 mm (1 inch) cho c\u00e1c ph\u1ea7n d\u00e0y h\u01a1n.<\/span><\/li>\n\n<li><span class=\"c5\">L\u00e0m m\u00e1t<\/span><span class=\"c2\">: L\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed ho\u1eb7c l\u00e0m ngu\u1ed9i b\u1eb1ng d\u1ea7u \u0111\u1ec3 t\u1ea1o th\u00e0nh martensit m\u1ec1m, \u00edt cacbon (RC 30\u201335).<\/span><\/li><\/ul><p class=\"c4\"><span class=\"c5\">K\u1ebft qu\u1ea3<\/span><span class=\"c2\">:<\/span><\/p><p class=\"c4\"><span class=\"c2\">Th\u00e9p tr\u1edf n\u00ean d\u1ebbo v\u00e0 d\u1ec5 gia c\u00f4ng, v\u1edbi m\u1eadt \u0111\u1ed9 bi\u1ebfn d\u1ea1ng cao. Qu\u00e1 tr\u00ecnh n\u00e0y c\u0169ng lo\u1ea1i b\u1ecf \u1ee9ng su\u1ea5t d\u01b0 t\u1eeb c\u00e1c b\u01b0\u1edbc s\u1ea3n xu\u1ea5t tr\u01b0\u1edbc \u0111\u00f3, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n \u1edf c\u00e1c c\u00f4ng \u0111o\u1ea1n ti\u1ebfp theo.<\/span><\/p><h3 class=\"wp-block-heading c4 c8\" id=\"h.d494it4ecrf6\"><span class=\"c17\">L\u00e3o h\u00f3a (S\u1ef1 c\u1ee9ng l\u1ea1i do m\u01b0a): Gi\u1ea3i ph\u00f3ng s\u1ee9c m\u1ea1nh<\/span><\/h3><p class=\"c4\"><span class=\"c28 c5\">Qu\u00e1 tr\u00ecnh:<\/span><\/p><ul class=\"wp-block-list c14 lst-kix_xlo958iz671p-0 start\"><li><span class=\"c2\">Nung n\u00f3ng \u0111\u1ebfn 480\u2013500\u00b0C (900\u2013930\u00b0F) s\u1ebd t\u1ea1o ra c\u00e1c h\u1ee3p ch\u1ea5t nh\u01b0 Ni\u2083Mo v\u00e0 Ni\u2083Ti. C\u00e1c h\u1ea1t n\u00e0y ng\u0103n ch\u1eb7n chuy\u1ec3n \u0111\u1ed9ng l\u1ec7ch, gi\u00fap th\u00e9p c\u1ee9ng h\u01a1n m\u00e0 kh\u00f4ng m\u1ea5t \u0111\u1ed9 d\u1ebbo dai.<\/span><\/li>\n\n<li><span class=\"c2\">Th\u1eddi gian \u1ee7 ti\u00eau chu\u1ea9n l\u00e0 3 gi\u1edd, m\u1eb7c d\u00f9 c\u00f3 th\u1ec3 k\u00e9o d\u00e0i \u0111\u1ebfn 6 gi\u1edd \u0111\u1ed1i v\u1edbi c\u00e1c h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p.<\/span><\/li>\n\n<li><span class=\"c2\">N\u1ebfu nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 500\u00b0C, c\u00e1c pha th\u00f4 nh\u01b0 Fe\u2082Mo c\u00f3 th\u1ec3 h\u00ecnh th\u00e0nh, l\u00e0m gi\u1ea3m c\u1ea3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo. Vi\u1ec7c ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 ch\u1eb7t ch\u1ebd l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 tr\u00e1nh nh\u1eefng t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c n\u00e0y.<\/span><\/li><\/ul><p class=\"c4\"><span class=\"c5\">K\u1ebft qu\u1ea3<\/span><span class=\"c2\">:<\/span><\/p><p class=\"c4\">Qu\u00e1 tr\u00ecnh l\u00e3o h\u00f3a l\u00e0m t\u0103ng \u0111\u1ed9 b\u1ec1n c\u1ee7a th\u00e9p, \u0111\u1ea1t t\u1edbi <span class=\"c5\">58 HRC<\/span><span class=\"c2\">&nbsp;cho c\u1ea5p C350. C\u1ea5u tr\u00fac vi m\u00f4 t\u1ea1o ra l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 b\u1ec1n c\u1ee7a v\u1eadt li\u1ec7u m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 d\u1ebbo dai, khi\u1ebfn v\u1eadt li\u1ec7u n\u00e0y tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe.<\/span><\/p><h3 class=\"wp-block-heading c8 c37\" id=\"h.qbmk3ftr74xx\">C\u1ea3i thi\u1ec7n sau \u0111i\u1ec1u tr\u1ecb<\/h3><p class=\"c4\"><span class=\"c5\">Th\u1ea5m nit\u01a1<\/span><span class=\"c2\">:<\/span><\/p><ul class=\"wp-block-list c14 lst-kix_ydcrq4dcelrm-0 start\"><li><span class=\"c5\">Qu\u00e1 tr\u00ecnh<\/span><span class=\"c2\">: Nit\u01a1 khu\u1ebfch t\u00e1n v\u00e0o b\u1ec1 m\u1eb7t \u1edf nhi\u1ec7t \u0111\u1ed9 500\u2013550\u00b0C (930\u20131.020\u00b0F).<\/span><\/li>\n\n<li><span class=\"c5\">K\u1ebft qu\u1ea3<\/span><span class=\"c2\">: \u0110\u1ed9 c\u1ee9ng b\u1ec1 m\u1eb7t t\u0103ng l\u00ean \u0111\u1ebfn h\u01a1n 60 HRC, l\u00fd t\u01b0\u1edfng cho c\u00e1c b\u1ed9 ph\u1eadn ch\u1ed1ng m\u00e0i m\u00f2n nh\u01b0 b\u00e1nh r\u0103ng.<\/span><\/li><\/ul><p class=\"c4\"><span class=\"c5\">Gi\u1ea3m c\u0103ng th\u1eb3ng<\/span><span class=\"c2\">:<\/span><\/p><ul class=\"wp-block-list c14 lst-kix_rwznoor56j1s-0 start\"><li><span class=\"c5\">Qu\u00e1 tr\u00ecnh<\/span>: \u1ee6 t\u1ea1i <span class=\"c5\">815\u2013830\u00b0C (1.500\u20131.525\u00b0F)<\/span><span class=\"c2\">\u00a0trong 1 gi\u1edd cho m\u1ed7i inch \u0111\u1ed9 d\u00e0y.<\/span><\/li>\n\n<li><span class=\"c5\">K\u1ebft qu\u1ea3<\/span>: <span class=\"c2\">Gi\u1ea3m \u1ee9ng su\u1ea5t gi\u00fap kh\u00f4i ph\u1ee5c c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u sau khi h\u00e0n ho\u1eb7c s\u1eeda ch\u1eefa. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa ho\u1eb7c h\u00e0n (v\u00ed d\u1ee5: khu\u00f4n \u00e9p phun).<\/span><\/li><\/ul><h2 class=\"wp-block-heading c4 c8\" id=\"h.8x7393kq5mfn\"><span class=\"c26\">Gia c\u00f4ng v\u00e0 quy tr\u00ecnh th\u00e9p Maraging<\/span><\/h2><h3 class=\"wp-block-heading c13\" id=\"h.1l350za34cgl\"><span class=\"c17\">L\u00e0m vi\u1ec7c l\u1ea1nh v\u00e0 n\u00f3ng<\/span><\/h3><p class=\"c4\">\u1ede tr\u1ea1ng th\u00e1i \u1ee7 (RC 30\u201335), th\u00e9p maraging c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gia c\u00f4ng ngu\u1ed9i v\u1edbi \u0111\u1ed9 d\u1ebbo \u1ea5n t\u01b0\u1ee3ng. C\u00e1n ngu\u1ed9i c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi <span class=\"c5\">Bi\u1ebfn d\u1ea1ng 90%<\/span><span class=\"c2\">&nbsp;kh\u00f4ng b\u1ecb n\u1ee9t, th\u00edch h\u1ee3p cho c\u00e1c t\u1ea5m m\u1ecfng ho\u1eb7c d\u00e2y ch\u00ednh x\u00e1c. <\/span><\/p><p class=\"c4\">\u0110\u1ed1i v\u1edbi c\u00e1c h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p, l\u00e0m vi\u1ec7c n\u00f3ng t\u1ea1i <span class=\"c5\">1.000\u20131.100\u00b0C (1.832\u20132.012\u00b0F)<\/span><span class=\"c2\">&nbsp;Ti\u1ebfp theo l\u00e0 qu\u00e1 tr\u00ecnh l\u00e0m ngu\u1ed9i nhanh \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 d\u1ebbo. Sau khi t\u1ea1o h\u00ecnh, qu\u00e1 tr\u00ecnh x\u1eed l\u00fd l\u00e3o h\u00f3a s\u1ebd kh\u00f4i ph\u1ee5c l\u1ea1i \u0111\u1ed9 b\u1ec1n ho\u00e0n to\u00e0n. <\/span><\/p><p class=\"c4\"><span class=\"c2\">Qu\u00e1 tr\u00ecnh n\u00e0y l\u00fd t\u01b0\u1edfng cho c\u00e1c chi ti\u1ebft c\u1ed1 \u0111\u1ecbnh v\u00e0 c\u1ea5u tr\u00fac c\u1ee7a ng\u00e0nh h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5.<\/span><\/p><h3 class=\"wp-block-heading c13\" id=\"h.j87i8icpu8bu\"><span class=\"c17\">H\u00e0n v\u00e0 n\u1ed1i<\/span><\/h3><p class=\"c4\">H\u00e0m l\u01b0\u1ee3ng carbon th\u1ea5p c\u1ee7a th\u00e9p maraging gi\u00fap lo\u1ea1i b\u1ecf nhu c\u1ea7u gia nhi\u1ec7t tr\u01b0\u1edbc, \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh h\u00e0n. <span class=\"c5\">TIG (GTAW)<\/span>&nbsp;V\u00e0 <span class=\"c5\">h\u00e0n laser<\/span><span class=\"c2\">&nbsp;l\u00e0 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng v\u00ec ch\u00fang ng\u0103n ng\u1eeba \u00f4 nhi\u1ec5m carbon. <\/span><\/p><p class=\"c4\">Sau khi h\u00e0n, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 <span class=\"c5\">t\u00e1i t\u1ea1o v\u00f9ng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t (HAZ)<\/span><span class=\"c2\">&nbsp;\u1edf nhi\u1ec7t \u0111\u1ed9 480\u2013500\u00b0C trong 3 gi\u1edd. B\u01b0\u1edbc n\u00e0y lo\u1ea1i b\u1ecf c\u00e1c v\u00f9ng m\u1ec1m v\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n \u0111\u1ed3ng \u0111\u1ec1u, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi b\u00ecnh ch\u1ecbu \u00e1p l\u1ef1c v\u00e0 thi\u1ebft b\u1ecb qu\u1ed1c ph\u00f2ng.<\/span><\/p><p class=\"c4\"><span class=\"c5\">C\u00e1c th\u00f4ng s\u1ed1 ch\u00ednh<\/span><span class=\"c2\">:<\/span><\/p><ul class=\"wp-block-list c14 lst-kix_571jg4nd1sea-0 start\"><li><span class=\"c2\">Kh\u00ed b\u1ea3o v\u1ec7: Argon ho\u1eb7c heli \u0111\u1ec3 ng\u0103n ng\u1eeba qu\u00e1 tr\u00ecnh oxy h\u00f3a.<\/span><\/li>\n\n<li><span class=\"c2\">V\u1eadt li\u1ec7u \u0111\u1ed9n: Th\u00e0nh ph\u1ea7n ph\u00f9 h\u1ee3p (v\u00ed d\u1ee5: d\u00e2y maraging 18Ni).<\/span><\/li><\/ul><h3 class=\"wp-block-heading c13\" id=\"h.9k211jpjetz1\"><span class=\"c17\">S\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp (LPBF)<\/span><\/h3><p class=\"c4\"><span class=\"c2\">Laser Powder Bed Fusion (LPBF) \u0111ang chuy\u1ec3n \u0111\u1ed5i vi\u1ec7c s\u1eed d\u1ee5ng th\u00e9p maraging trong c\u00e1c th\u00e0nh ph\u1ea7n nh\u1eb9, c\u01b0\u1eddng \u0111\u1ed9 cao. Trong quy tr\u00ecnh n\u00e0y, b\u1ed9t h\u1ee3p kim m\u1ecbn \u0111\u01b0\u1ee3c nung ch\u1ea3y t\u1eebng l\u1edbp b\u1eb1ng tia laser c\u00f4ng su\u1ea5t cao.<\/span><\/p><p class=\"c4\"><span class=\"c5\">Quy tr\u00ecnh l\u00e0m vi\u1ec7c \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a<\/span><span class=\"c2\">:<\/span><\/p><ol start=\"1\" class=\"wp-block-list c14 lst-kix_xl22b6kufpd5-0 start\"><li><span class=\"c5\">In \u1ea5n<\/span><span class=\"c2\">: C\u00f4ng su\u1ea5t laser 200\u2013400 W, t\u1ed1c \u0111\u1ed9 qu\u00e9t 800\u20131.200 mm\/gi\u00e2y.<\/span><\/li>\n\n<li><span class=\"c5\">Gi\u1ea3m c\u0103ng th\u1eb3ng<\/span><span class=\"c2\">: 600\u00b0C trong 2 gi\u1edd \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t d\u01b0.<\/span><\/li>\n\n<li><span class=\"c5\">L\u00e3o h\u00f3a<\/span><span class=\"c2\">: X\u1eed l\u00fd \u1edf nhi\u1ec7t \u0111\u1ed9 480\u00b0C ti\u00eau chu\u1ea9n gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 l\u00ean 30\u201340%.<\/span><\/li><\/ol><p class=\"c4\"><span class=\"c2\">C\u00e1c b\u01b0\u1edbc h\u1eadu x\u1eed l\u00fd, ch\u1eb3ng h\u1ea1n nh\u01b0 \u00c9p n\u00f3ng \u0111\u1eb3ng t\u0129nh (HIP), c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n h\u01a1n n\u1eefa m\u1eadt \u0111\u1ed9 v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ecfi. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch cho c\u00e1c b\u1ed9 ph\u1eadn nh\u01b0 gi\u00e1 \u0111\u1ee1 v\u1ec7 tinh v\u00e0 c\u1ea5y gh\u00e9p y t\u1ebf t\u00f9y ch\u1ec9nh, n\u01a1i c\u1ea7n c\u00f3 h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p.<\/span><\/p><h3 class=\"wp-block-heading c13\" id=\"h.7t0u8jikfmpu\"><span class=\"c17\">Bi\u1ebfn d\u1ea1ng d\u1ebbo nghi\u00eam tr\u1ecdng (SPD)<\/span><\/h3><p class=\"c4\">\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi s\u1ee9c m\u1ea1nh c\u1ef1c l\u1edbn, c\u00e1c k\u1ef9 thu\u1eadt SPD nh\u01b0 <span class=\"c5\">Xo\u1eafn \u00e1p su\u1ea5t cao (HPT)<\/span>&nbsp;ho\u1eb7c <span class=\"c5\">\u00c9p g\u00f3c k\u00eanh b\u1eb1ng nhau (ECAP)<\/span>&nbsp;\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 tinh ch\u1ec9nh c\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a th\u00e9p. C\u00e1c quy tr\u00ecnh n\u00e0y t\u1ea1o ra c\u00e1c h\u1ea1t si\u00eau m\u1ecbn (&lt;100 nm) v\u00e0 m\u1ea1ng l\u01b0\u1edbi l\u1ec7ch, \u0111\u1ea9y gi\u1edbi h\u1ea1n ch\u1ea3y v\u01b0\u1ee3t qu\u00e1 <span class=\"c5\">3.0 GPa<\/span><span class=\"c2\">. <\/span><\/p><p class=\"c4\"><span class=\"c2\">M\u1eb7c d\u00f9 \u0111\u1eaft ti\u1ec1n, SPD r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 l\u1edbp gi\u00e1p v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n ch\u1ecbu m\u1ecfi chu k\u1ef3 cao trong h\u1ec7 th\u1ed1ng qu\u1ed1c ph\u00f2ng.<\/span><\/p><h2 class=\"wp-block-heading c4 c8\" id=\"h.7y89ln64976r\"><span class=\"c26\">\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a th\u00e9p Maraging<\/span><\/h2><h3 class=\"wp-block-heading c37 c8\" id=\"h.265wjdsvuk2a\"><span class=\"c17\">\u01afu \u0111i\u1ec3m c\u1ee7a th\u00e9p Maraging<\/span><\/h3><ul class=\"wp-block-list c14 lst-kix_owk3wn4abpur-0 start\"><li><span class=\"c2\">C\u00e2n b\u1eb1ng \u0111\u1ed9 b\u1ec1n-\u0111\u1ed9 d\u1ebbo dai: V\u01b0\u1ee3t tr\u1ed9i h\u01a1n th\u00e9p d\u1ee5ng c\u1ee5 (v\u00ed d\u1ee5: H13) v\u00e0 h\u1ee3p kim titan, v\u1edbi \u0111\u1ed9 b\u1ec1n k\u00e9o l\u00ean t\u1edbi 3,5 GPa v\u00e0 \u0111\u1ed9 d\u1ebbo dai ch\u1ed1ng g\u00e3y tr\u00ean 175 MPa\u00b7m\u00b9\u2044\u00b2.<\/span><\/li>\n\n<li><span class=\"c2\">D\u1ec5 ch\u1ebf t\u1ea1o: C\u00f3 th\u1ec3 gia c\u00f4ng ngu\u1ed9i (bi\u1ebfn d\u1ea1ng l\u00ean \u0111\u1ebfn 90%), c\u00f3 th\u1ec3 h\u00e0n m\u00e0 kh\u00f4ng c\u1ea7n gia nhi\u1ec7t tr\u01b0\u1edbc v\u00e0 c\u00f3 th\u1ec3 \u0111\u00e1nh b\u00f3ng \u0111\u1ebfn \u0111\u1ed9 b\u00f3ng nh\u01b0 g\u01b0\u01a1ng.<\/span><\/li>\n\n<li><span class=\"c2\">Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu m\u00f4i tr\u01b0\u1eddng: Kh\u1ea3 n\u0103ng ch\u1ed1ng gi\u00f2n do hydro v\u00e0 ch\u1ed1ng n\u1ee9t do \u0103n m\u00f2n \u1ee9ng su\u1ea5t cao.<\/span><\/li><\/ul><h3 class=\"wp-block-heading c37 c8\" id=\"h.kng9dqgnme0i\"><span class=\"c17\">Gi\u1edbi h\u1ea1n c\u1ee7a th\u00e9p Maraging<\/span><\/h3><ul class=\"wp-block-list c14 lst-kix_krte87fytrtp-0 start\"><li><span class=\"c2\">Chi ph\u00ed cao: Do h\u00e0m l\u01b0\u1ee3ng niken v\u00e0 coban, h\u1ea1n ch\u1ebf vi\u1ec7c s\u1eed d\u1ee5ng trong c\u00e1c d\u1ef1 \u00e1n c\u00f3 ng\u00e2n s\u00e1ch eo h\u1eb9p.<\/span><\/li>\n\n<li><span class=\"c2\">Gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9: \u0110\u1ed9 b\u1ec1n gi\u1ea3m m\u1ea1nh \u1edf nhi\u1ec7t \u0111\u1ed9 tr\u00ean 400\u00b0C do s\u1ef1 tr\u1edf l\u1ea1i c\u1ee7a austenit.<\/span><\/li>\n\n<li><span class=\"c2\">\u0110\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a gia c\u00f4ng sau khi l\u00e3o h\u00f3a: C\u1ea7n s\u1eed d\u1ee5ng d\u1ee5ng c\u1ee5 cacbua \u1edf tr\u1ea1ng th\u00e1i t\u00f4i c\u1ee9ng (RC 55+), l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3.<\/span><\/li><\/ul><h2 class=\"wp-block-heading c22\" id=\"h.dhtli9ea736o\"><span class=\"c26\">T\u1ed1i \u01b0u h\u00f3a d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n v\u1edbi chuy\u00ean m\u00f4n v\u1ec1 th\u00e9p Maraging \u0111\u00e1ng tin c\u1eady<\/span><\/h2><p class=\"c4\">V\u1edbi h\u01a1n 20 n\u0103m kinh nghi\u1ec7m gi\u1ea3i quy\u1ebft c\u00e1c th\u00e1ch th\u1ee9c k\u1ef9 thu\u1eadt ph\u1ee9c t\u1ea1p, ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o c\u00e1c th\u00e0nh ph\u1ea7n th\u00e9p maraging c\u1ee7a b\u1ea1n \u0111\u00e1p \u1ee9ng v\u00e0 v\u01b0\u1ee3t qu\u00e1 c\u00e1c ti\u00eau chu\u1ea9n hi\u1ec7u su\u1ea5t. T\u1ea1i <span class=\"c5\">T\u1eadp \u0111o\u00e0n SteelPro<\/span><span class=\"c2\">Ch\u00fang t\u00f4i k\u1ebft n\u1ed1i khoa h\u1ecdc v\u1eadt li\u1ec7u v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. \u0110\u1ed9i ng\u0169 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn c\u1ee7a ch\u00fang t\u00f4i cung c\u1ea5p c\u00e1c Gi\u1ea3i ph\u00e1p Chuy\u00ean bi\u1ec7t theo C\u1ea5p \u0111\u1ed9, t\u1eeb d\u1ee5ng c\u1ee5 C200 ti\u1ebft ki\u1ec7m chi ph\u00ed \u0111\u1ebfn linh ki\u1ec7n h\u1ea1t nh\u00e2n C350 \u0111\u1ea1t chu\u1ea9n xu\u1ea5t kh\u1ea9u.<\/span><\/p><p class=\"c4\"><span class=\"c2\">H\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec3 b\u1eaft \u0111\u1ea7u d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n m\u1ed9t c\u00e1ch t\u1ef1 tin ngay h\u00f4m nay!<\/span><\/p><p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn v\u1ec1 th\u00e9p maraging: th\u00e0nh ph\u1ea7n, l\u00e3o h\u00f3a, gia c\u00f4ng, \u01b0u\/nh\u01b0\u1ee3c \u0111i\u1ec3m. SteelPro Group gi\u1ea3i quy\u1ebft nh\u1eefng th\u00e1ch th\u1ee9c v\u1ec1 k\u1ef9 thu\u1eadt ch\u1ecbu \u1ee9ng su\u1ea5t cao c\u1ee7a b\u1ea1n.<\/p>","protected":false},"author":1,"featured_media":21411,"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":[4308],"tags":[],"class_list":["post-21410","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-alloy-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/21410","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=21410"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/21410\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/21411"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=21410"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=21410"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=21410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}