{"id":1641,"date":"2019-05-22T02:47:32","date_gmt":"2019-05-22T02:47:32","guid":{"rendered":"http:\/\/www.meetyoucarbide.com\/single-post-choosing-material-for-machining-stainless-steel-is-difficult-lets-hear-the-expert-tips\/"},"modified":"2020-05-04T13:12:09","modified_gmt":"2020-05-04T13:12:09","slug":"choosing-material-for-machining-stainless-steel-is-difficult-lets-hear-the-expert-tips","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/vi\/chon-vat-lieu-de-gia-cong-thep-khong-gi-la-kho-cho-phep-nghe-loi-khuyen-cua-chuyen-gia\/","title":{"rendered":"Ch\u1ecdn v\u1eadt li\u1ec7u \u0111\u1ec3 gia c\u00f4ng th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 kh\u00f3 kh\u00f4ng? H\u00e3y c\u00f9ng nghe nh\u1eefng l\u1eddi khuy\u00ean c\u1ee7a chuy\u00ean gia"},"content":{"rendered":"
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Hi\u1ec7n nay, th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb ph\u00e1t \u0111i\u1ec7n, x\u00e2y d\u1ef1ng v\u00e0 th\u1ef1c ph\u1ea9m. L\u00e0 m\u1ed9t v\u1eadt li\u1ec7u kh\u00f3 gia c\u00f4ng \u0111i\u1ec3n h\u00ecnh, th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 c\u00e1c khuy\u1ebft \u0111i\u1ec3m l\u00e0 c\u1ee9ng nghi\u00eam tr\u1ecdng trong qu\u00e1 tr\u00ecnh gia c\u00f4ng, nhi\u1ec7t \u0111\u1ed9 c\u1eaft cao v\u00e0 d\u1ec5 d\u00e0ng k\u1ebft d\u00ednh phoi. Do c\u00e1c \u0111\u1eb7c t\u00ednh tr\u00ean c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9, c\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p nh\u01b0 m\u00e0i m\u00f2n nhanh, b\u1ec1 m\u1eb7t gia c\u00f4ng k\u00e9m nguy\u00ean v\u1eb9n, kh\u00f3 th\u00e1o phoi d\u1ec5 x\u1ea3y ra trong qu\u00e1 tr\u00ecnh gia c\u00f4ng STS, \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng gia c\u00f4ng, s\u1ea3n xu\u1ea5t chu k\u1ef3 v\u00e0 chi ph\u00ed x\u1eed l\u00fd c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn v\u1eadt li\u1ec7u c\u00f3 ch\u1ee9a STS. Meetyou carbide tech startup ph\u00e2n t\u00edch v\u00e0 t\u1ed5ng h\u1ee3p nh\u1eefng kh\u00f3 kh\u0103n trong qu\u00e1 tr\u00ecnh gia c\u00f4ng v\u1eadt li\u1ec7u th\u00e9p kh\u00f4ng g\u1ec9, \u0111\u1ed3ng th\u1eddi \u0111\u01b0a ra gi\u1ea3i ph\u00e1p v\u1edbi c\u00e1c bi\u1ec7n ph\u00e1p c\u1ee5 th\u1ec3 cho vi\u1ec7c c\u1eaft th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m ti\u00eau bi\u1ec3u \u0111\u1ec3 b\u1ea1n tham kh\u1ea3o.<\/div>\n

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L\u00fd do v\u1eadt li\u1ec7u th\u00e9p kh\u00f4ng g\u1ec9 kh\u00f3 gia c\u00f4ng<\/h1>\n

1. C\u01b0\u1eddng \u0111\u1ed9 nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 xu h\u01b0\u1edbng l\u00e0m c\u1ee9ng<\/h3>\n
So v\u1edbi th\u00e9p th\u00f4ng th\u01b0\u1eddng, th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng trung b\u00ecnh. Tuy nhi\u00ean, n\u00f3 c\u00f3 ch\u1ee9a m\u1ed9t l\u01b0\u1ee3ng l\u1edbn c\u00e1c nguy\u00ean t\u1ed1 nh\u01b0 Cr, Ni v\u00e0 Mn, v\u00e0 c\u00f3 \u0111\u1ed9 d\u1ebbo v\u00e0 dai t\u1ed1t, \u0111\u1ed9 b\u1ec1n nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 xu h\u01b0\u1edbng l\u00e0m c\u1ee9ng cao do \u0111\u00f3 d\u1eabn \u0111\u1ebfn t\u1ea3i tr\u1ecdng c\u1eaft. Ngo\u00e0i ra, trong th\u00e9p kh\u00f4ng g\u1ec9 Austenit trong qu\u00e1 tr\u00ecnh c\u1eaft, m\u1ed9t s\u1ed1 cacbua b\u1ecb k\u1ebft t\u1ee7a b\u00ean trong, l\u00e0m t\u0103ng t\u00e1c d\u1ee5ng tr\u1ea7y x\u01b0\u1edbc cho dao c\u1eaft.<\/div>\n

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H\u00ecnh 1. C\u01b0\u1eddng \u0111\u1ed9 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 th\u00f4ng th\u01b0\u1eddng<\/div>\n
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2.L\u1ef1c c\u1eaft l\u1edbn \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u<\/h3>\n
Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 \u0111\u1ed9 bi\u1ebfn d\u1ea1ng d\u1ebbo l\u1edbn trong qu\u00e1 tr\u00ecnh c\u1eaft, \u0111\u1eb7c bi\u1ec7t l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 Austenit (\u0111\u1ed9 gi\u00e3n d\u00e0i v\u01b0\u1ee3t 1,5 l\u1ea7n so v\u1edbi th\u00e9p 45) l\u00e0m t\u0103ng l\u1ef1c c\u1eaft.<\/div>\n

3.chip v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng li\u00ean k\u1ebft c\u00f4ng c\u1ee5 l\u00e0 ph\u1ed5 bi\u1ebfn<\/h3>\n
Trong qu\u00e1 tr\u00ecnh c\u1eaft d\u1ec5 h\u00ecnh th\u00e0nh g\u1edd t\u00edch t\u1ee5, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t c\u1ee7a b\u1ec1 m\u1eb7t gia c\u00f4ng v\u00e0 d\u1ec5 g\u00e2y bong tr\u00f3c b\u1ec1 m\u1eb7t d\u1ee5ng c\u1ee5.<\/div>\n

4. chip d\u1ec5 b\u1ecb cong v\u00e0 g\u00e3y<\/h3>\n
\u0110\u1ed1i v\u1edbi m\u00e1y c\u1eaft phoi k\u00edn v\u00e0 b\u00e1n k\u00edn, d\u1ec5 x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng t\u1eafc phoi, l\u00e0m t\u0103ng \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t v\u00e0 s\u1ee9t m\u1ebb d\u1ee5ng c\u1ee5<\/div>\n

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H\u00ecnh 2. H\u00ecnh d\u1ea1ng phoi l\u00fd t\u01b0\u1edfng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9<\/div>\n
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5. h\u1ec7 s\u1ed1 m\u1edf r\u1ed9ng tuy\u1ebfn t\u00ednh l\u1edbn<\/h3>\n
N\u00f3 b\u1eb1ng kho\u1ea3ng m\u1ed9t l\u1ea7n r\u01b0\u1ee1i h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf tuy\u1ebfn t\u00ednh c\u1ee7a th\u00e9p cacbon. D\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a nhi\u1ec7t \u0111\u1ed9 c\u1eaft, ph\u00f4i d\u1ec5 b\u1ecb bi\u1ebfn d\u1ea1ng nhi\u1ec7t v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc.<\/div>\n
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6. nh\u1ecf \u0111\u1ed9 d\u1eabn nhi\u1ec7t<\/h3>\n
N\u00f3i chung, n\u00f3 b\u1eb1ng kho\u1ea3ng 1\/4 ~ 1\/2 \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a th\u00e9p cacbon trung b\u00ecnh. Nhi\u1ec7t \u0111\u1ed9 c\u1eaft cao v\u00e0 d\u1ee5ng c\u1ee5 b\u1ecb m\u00f2n nhanh.<\/div>\n

L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u c\u00f4ng c\u1ee5<\/h4>\n
1. N\u00ean ch\u1ecdn v\u1eadt li\u1ec7u d\u1ee5ng c\u1ee5 c\u00f3 \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 d\u1ebbo dai v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t cao, c\u00f3 \u00e1i l\u1ef1c h\u00f3a h\u1ecdc v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9.<\/div>\n
2. Khi s\u1eed d\u1ee5ng th\u00e9p t\u1ed1c \u0111\u1ed9 cao \u0111\u1ec3 x\u1eed l\u00fd STS, n\u00ean s\u1eed d\u1ee5ng th\u00e9p t\u1ed1c \u0111\u1ed9 cao hi\u1ec7u su\u1ea5t cao nh\u01b0 W2Mo9Cr4VCo8, W6Mo5Cr4V2Al, W10Mo4Cr4V3Al, v.v.<\/div>\n
3.Khi s\u1eed d\u1ee5ng cacbua xi m\u0103ng, kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng c\u00e1c h\u1ee3p kim g\u1ed1c YT, v\u00e0 n\u00ean s\u1eed d\u1ee5ng c\u00e1c h\u1ee3p kim YW c\u00f3 ch\u1ee9a Ta (Nb) ho\u1eb7c YG vonfram-coban (ISO M, K). Ch\u1eb3ng h\u1ea1n nh\u01b0 YS2, YG3X, YG8W, YG6A, YG6X, YG643, YG813, YW3Y, YG8N, v.v.<\/div>\n
Ai c\u0169ng bi\u1ebft r\u1eb1ng hi\u1ec7u su\u1ea5t c\u1eaft c\u1ee7a v\u1eadt li\u1ec7u c\u00f4ng c\u1ee5 c\u00f3 li\u00ean quan \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n v\u00e0 n\u0103ng su\u1ea5t c\u1ee7a c\u00f4ng c\u1ee5. Kh\u1ea3 n\u0103ng gia c\u00f4ng c\u1ee7a v\u1eadt li\u1ec7u c\u00f4ng c\u1ee5 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng ch\u1ebf t\u1ea1o v\u00e0 m\u00e0i s\u1eafc c\u1ee7a ch\u00ednh c\u00f4ng c\u1ee5 \u0111\u00f3. N\u00ean ch\u1ecdn v\u1eadt li\u1ec7u d\u1ee5ng c\u1ee5 c\u00f3 \u0111\u1ed9 c\u1ee9ng cao, kh\u1ea3 n\u0103ng ch\u1ed1ng b\u00e1m d\u00ednh t\u1ed1t v\u00e0 d\u1ebbo dai, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u1ee3p kim c\u1ee9ng lo\u1ea1i YG. S\u1eed d\u1ee5ng h\u1ee3p kim c\u1ee9ng lo\u1ea1i YT cho SUS kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong gia c\u00f4ng th\u00e9p kh\u00f4ng g\u1ec9 Austenit 1Gr18Ni9Ti. Lo\u1ea1i c\u1ee9ng ki\u1ec3u YT n\u00ean tuy\u1ec7t \u0111\u1ed1i tr\u00e1nh. H\u1ee3p kim, v\u00ec titan (Ti) trong th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 Ti trong cacbua xi m\u0103ng g\u1ed1c YT t\u1ea1o ra \u00e1i l\u1ef1c, c\u00e1c phoi d\u1ec5 d\u00e0ng mang \u0111i Ti trong h\u1ee3p kim, d\u1eabn \u0111\u1ebfn m\u00e0i m\u00f2n d\u1ee5ng c\u1ee5. Ch\u1ec9 s\u1ed1 th\u1ef1c h\u00e0nh s\u1ea3n xu\u1ea5t cho th\u1ea5y qu\u00e1 tr\u00ecnh x\u1eed l\u00fd th\u00e9p kh\u00f4ng g\u1ec9 v\u1edbi YG532, YG813 v\u00e0 YW2 cho k\u1ebft qu\u1ea3 x\u1eed l\u00fd t\u1ed1t.<\/div>\n
B\u1edfi v\u00ec cacbua xi m\u0103ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t h\u01a1n th\u00e9p t\u1ed1c \u0111\u1ed9 cao, c\u00e1c d\u1ee5ng c\u1ee5 l\u00e0m b\u1eb1ng v\u1eadt li\u1ec7u h\u1ee3p kim c\u1ee9ng th\u00edch h\u1ee3p h\u01a1n \u0111\u1ec3 c\u1eaft th\u00e9p kh\u00f4ng g\u1ec9. H\u1ee3p kim vonfram-coban c\u00f3 \u0111\u1ed9 d\u1ebbo dai t\u1ed1t. C\u00f4ng c\u1ee5 n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o v\u1edbi g\u00f3c c\u00e0o l\u1edbn h\u01a1n v\u00e0 c\u1ea1nh s\u1eafc h\u01a1n, v\u00ec v\u1eady n\u00f3i chung, n\u00f3 th\u00edch h\u1ee3p \u0111\u1ec3 gia c\u00f4ng th\u00e9p kh\u00f4ng g\u1ec9 b\u1eb1ng h\u1ee3p kim vonfram-coban. \u0110\u1eb7c bi\u1ec7t trong tr\u01b0\u1eddng h\u1ee3p gia c\u00f4ng th\u00f4 v\u00e0 c\u1eaft gi\u00e1n \u0111o\u1ea1n v\u1edbi \u0111\u1ed9 rung l\u1edbn, n\u00ean s\u1eed d\u1ee5ng l\u01b0\u1ee1i c\u1eaft b\u1eb1ng h\u1ee3p kim vonfram-coban. N\u00f3 kh\u00f4ng c\u1ee9ng v\u00e0 gi\u00f2n nh\u01b0 h\u1ee3p kim vonfram-coban-titan, v\u00e0 c\u0169ng kh\u00f4ng d\u1ec5 b\u00e0o. Trong khi h\u1ee3p kim vonfram-coban-titan c\u00f3 \u0111\u1ed9 c\u1ee9ng \u0111\u1ecf t\u1ed1t v\u00e0 ch\u1ecbu m\u00e0i m\u00f2n h\u01a1n h\u1ee3p kim vonfram-coban trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 cao, nh\u01b0ng n\u00f3 c\u00f3 \u0111\u1ed9 gi\u00f2n cao v\u00e0 kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu va \u0111\u1eadp v\u00e0 rung \u0111\u1ed9ng. V\u00ec v\u1eady, n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 ho\u00e0n thi\u1ec7n th\u00e9p kh\u00f4ng g\u1ec9.<\/div>\n

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H\u00ecnh 3. So s\u00e1nh \u0111i\u1ec3m YT v\u00e0 \u0111i\u1ec3m YG<\/div>\n
4. C\u00e1c l\u1edbp ph\u1ee7 c\u1ee7a cacbua xi m\u0103ng c\u00f3 th\u1ec3 l\u00e0 CA15, CA25, YBM151, YBM251, YBM351, YBG202, YBG252, YBG302, CN251, YB425, ZC05, ZC07, ZM10 v\u00e0 t\u01b0\u01a1ng t\u1ef1.<\/div>\n
L\u1edbp ph\u1ee7 c\u1ed5 \u0111i\u1ec3n l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 ph\u1ee7 TiAlN ho\u1eb7c AlCrN. L\u1edbp ph\u1ee7 TiAlN c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh tuy\u1ec7t v\u1eddi nh\u01b0 \u0111\u1ed9 c\u1ee9ng cao, nhi\u1ec7t \u0111\u1ed9 oxy h\u00f3a cao, \u0111\u1ed9 c\u1ee9ng nhi\u1ec7t t\u1ed1t, \u0111\u1ed9 b\u00e1m d\u00ednh m\u1ea1nh, h\u1ec7 s\u1ed1 ma s\u00e1t th\u1ea5p v\u00e0 \u0111\u1ed9 d\u1eabn nhi\u1ec7t th\u1ea5p. V\u00ec nguy\u00ean t\u1ed1 Cr c\u00f3 nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y cao h\u01a1n nguy\u00ean t\u1ed1 Ti, c\u00f4ng ty s\u01a1n ph\u1ee7 \u0111\u00e3 ph\u00e1t tri\u1ec3n m\u1ed9t l\u1edbp ph\u1ee7 AlCrN trong \u0111\u00f3 Cr \u0111\u01b0\u1ee3c thay th\u1ebf cho Ti. So v\u1edbi TiAlN, nhi\u1ec7t \u0111\u1ed9 oxy h\u00f3a \u1edf nhi\u1ec7t \u0111\u1ed9 cao c\u1ee7a AlCrN c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3, h\u1ec7 s\u1ed1 ma s\u00e1t nh\u1ecf h\u01a1n, kh\u1ea3 n\u0103ng lo\u1ea1i b\u1ecf phoi m\u1ea1nh h\u01a1n, nh\u01b0ng \u0111\u1ed9 c\u1ee9ng gi\u1ea3m nh\u1eb9.<\/div>\n

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H\u00ecnh 4 So s\u00e1nh \u0111\u1ed9 c\u1ee9ng c\u1ee7a 3 v\u1eadt li\u1ec7u ph\u1ee7 kh\u00e1c nhau<\/div>\n
\u0110\u1ed1i v\u1edbi cermet, YNG151 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. \u0110\u1ed1i v\u1edbi kim lo\u1ea1i tr\u00e1ng men YNG151C c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/div>\n<\/div>\n<\/div>\n

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At present, stainless steel is widely used in industry such as aerospace, power generation equipment manufacturing, construction and food. As a typical hard-to-machine material, stainless steel has the defects of severe hardening during processing, high cutting temperature and easy adhesion of chips. Due to the above characteristics of stainless steel, common problems such as accelerated…<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[79],"tags":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/1641"}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/comments?post=1641"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/1641\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media?parent=1641"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/categories?post=1641"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/tags?post=1641"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}