{"id":21338,"date":"2022-08-22T10:21:19","date_gmt":"2022-08-22T02:21:19","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=21338"},"modified":"2022-08-22T10:26:15","modified_gmt":"2022-08-22T02:26:15","slug":"3-sorts-of-widely-applied-cemented-carbide-sintering-furnaces","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/vi\/3-sorts-of-widely-applied-cemented-carbide-sintering-furnaces\/","title":{"rendered":"3 L\u00f2 thi\u00eau k\u1ebft cacbua xi m\u0103ng \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i"},"content":{"rendered":"
\n

\u0110\u1ec3 bi\u1ebft l\u00f2 thi\u00eau k\u1ebft cacbua xi m\u0103ng, tr\u01b0\u1edbc ti\u00ean ch\u00fang ta n\u00ean xem l\u1ea1i quy tr\u00ecnh thi\u00eau k\u1ebft cacbua xi m\u0103ng.<\/p>\n\n\n\n

Ch\u1ee9c n\u0103ng c\u1ee7a l\u00f2 thi\u00eau k\u1ebft l\u00e0 l\u00e0m n\u00f3ng ph\u00f4i cacbua xi m\u0103ng \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh (nhi\u1ec7t \u0111\u1ed9 thi\u00eau k\u1ebft), gi\u1eef ch\u00fang trong m\u1ed9t th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh (th\u1eddi gian gi\u1eef), sau \u0111\u00f3 l\u00e0m ngu\u1ed9i ch\u00fang \u0111\u1ec3 thu \u0111\u01b0\u1ee3c s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng cacbua xi m\u0103ng v\u1edbi hi\u1ec7u su\u1ea5t c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n

1B\u1ed1n giai \u0111o\u1ea1n trong qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft cacbua xi m\u0103ng<\/strong><\/h2>\n\n\n\n

\u0110\u1ed1t tr\u01b0\u1edbc + lo\u1ea1i b\u1ecf ch\u1ea5t t\u1ea1o h\u00ecnh<\/h3>\n\n\n\n

\u1ede giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft, khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng l\u00ean, ch\u1ea5t t\u1ea1o khu\u00f4n d\u1ea7n d\u1ea7n bay h\u01a1i v\u00e0 t\u00e1ch ra kh\u1ecfi th\u00e2n thi\u00eau k\u1ebft. \u0110\u1ed3ng th\u1eddi, ch\u1ea5t t\u1ea1o khu\u00f4n \u00edt nhi\u1ec1u s\u1ebd cacbon h\u00f3a ph\u00f4i thi\u00eau k\u1ebft. oxit tr\u00ean b\u1ec1 m\u1eb7t b\u1ed9t cacbua s\u1ebd b\u1ecb kh\u1eed b\u1edfi hydro. \u1ee8ng su\u1ea5t ti\u1ebfp x\u00fac gi\u1eefa c\u00e1c h\u1ea1t b\u1ed9t d\u1ea7n d\u1ea7n b\u1ecb lo\u1ea1i b\u1ecf v\u00e0 b\u1ed9t kim lo\u1ea1i li\u00ean k\u1ebft b\u1eaft \u0111\u1ea7u k\u1ebft tinh l\u1ea1i.<\/p>\n\n\n\n

Solid phase sintering stage (800 \u2103 — eutectic temperature)<\/h3>\n\n\n\n


\u1ede nhi\u1ec7t \u0111\u1ed9 tr\u01b0\u1edbc khi pha l\u1ecfng xu\u1ea5t hi\u1ec7n, ngo\u00e0i vi\u1ec7c ti\u1ebfp t\u1ee5c qu\u00e1 tr\u00ecnh \u1edf giai \u0111o\u1ea1n tr\u01b0\u1edbc, ph\u1ea3n \u1ee9ng v\u00e0 khu\u1ebfch t\u00e1n pha r\u1eafn \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng, d\u00f2ng ch\u1ea3y d\u1ebbo \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng v\u00e0 xu\u1ea5t hi\u1ec7n s\u1ef1 co ng\u00f3t r\u00f5 r\u00e0ng tr\u00ean ph\u00f4i.<\/p>\n\n\n\n

Liquid phase sintering stage (eutectic temperature — sintering temperature)<\/h3>\n\n\n\n

Khi pha l\u1ecfng xu\u1ea5t hi\u1ec7n \u1edf d\u1ea1ng ph\u00f4i, qu\u00e1 tr\u00ecnh co ng\u00f3t \u0111\u01b0\u1ee3c ho\u00e0n th\u00e0nh nhanh ch\u00f3ng, sau \u0111\u00f3 x\u1ea3y ra qu\u00e1 tr\u00ecnh bi\u1ebfn \u0111\u1ed5i tinh th\u1ec3, t\u1ea1o th\u00e0nh c\u1ea5u tr\u00fac v\u00e0 c\u1ea5u tr\u00fac c\u01a1 b\u1ea3n c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m cacbua xi m\u0103ng.<\/p>\n\n\n\n

Cooling stage (sintering temperature – room temperature)<\/h3>\n\n\n\n

\u1ede giai \u0111o\u1ea1n n\u00e0y, c\u1ea5u tr\u00fac vi m\u00f4 v\u00e0 th\u00e0nh ph\u1ea7n pha c\u1ee7a cacbua xi m\u0103ng s\u1ebd thay \u0111\u1ed5i theo c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u00e0m m\u00e1t kh\u00e1c nhau. C\u00e1c s\u1ea3n ph\u1ea9m cacbua xi m\u0103ng \u0111\u00e3 \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh \u1edf giai \u0111o\u1ea1n n\u00e0y v\u1edbi c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 h\u00f3a h\u1ecdc \u0111\u01b0\u1ee3c n\u00e2ng cao.<\/p>\n\n\n\n

2 ti\u1ec1n \u0111\u1ec1 c\u1ee7a l\u00f2 thi\u00eau k\u1ebft: THI\u1ebeT L\u1ee4C CH\u00c2N KH\u00d4NG<\/strong><\/h2>\n\n\n\n

\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh t\u1ea9y s\u00e1p tr\u01a1n tru (ch\u1ea5t b\u00f4i tr\u01a1n ho\u1eb7c ch\u1ea5t t\u1ea1o h\u00ecnh), kh\u1eed, h\u1ee3p kim h\u00f3a v\u00e0 bi\u1ebfn \u0111\u1ed5i c\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a b\u1ed9t n\u00e9n trong qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft, l\u00f2 thi\u00eau k\u1ebft c\u1ea7n c\u00f3 kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c nhi\u1ec7t \u0111\u1ed9 thi\u00eau k\u1ebft, kh\u00f4ng kh\u00ed b\u1ea3o v\u1ec7, ch\u1ebf \u0111\u1ed9 truy\u1ec1n t\u1ea3i n\u00e9n, gia nhi\u1ec7t v\u00e0 t\u1ed1c \u0111\u1ed9 l\u00e0m m\u00e1t, v.v. Trong s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m cacbua xi m\u0103ng, l\u00f2 thi\u00eau k\u1ebft ch\u00e2n kh\u00f4ng v\u1ec1 c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. H\u00fat kh\u00f4ng kh\u00ed trong l\u00f2 \u0111\u1ec3 h\u00fat ch\u00e2n kh\u00f4ng, sau \u0111\u00f3 \u0111\u1ed5 \u0111\u1ea7y kh\u00ed tr\u01a1 v\u00e0o l\u00f2 thi\u00eau k\u1ebft \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t kh\u00ed quy\u1ec3n kh\u00e1c nhau.<\/p>\n\n\n\n

\"\"
h\u00ecnh.1 m\u1ed1i quan h\u1ec7 gi\u1eefa \u00e1p su\u1ea5t trong l\u00f2 thi\u00eau k\u1ebft v\u00e0 \u0111\u1ed9 co l\u1ed7 r\u1ed7ng c\u1ee7a s\u1ea3n ph\u1ea9m cacbua cememted<\/figcaption><\/figure>\n\n\n\n

3L\u00f2 thi\u00eau k\u1ebft cacbua xi m\u0103ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t Hi\u1ec7n nay<\/strong><\/h2>\n\n\n\n

Theo s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9 \u00e9p, hai lo\u1ea1i ph\u01b0\u01a1ng ph\u00e1p thi\u00eau k\u1ebft th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, \u0111\u00f3 l\u00e0 thi\u00eau k\u1ebft kh\u00f4ng \u00e1p su\u1ea5t v\u00e0 thi\u00eau k\u1ebft \u00e1p su\u1ea5t. Thi\u00eau k\u1ebft kh\u00f4ng \u00e1p su\u1ea5t ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho c\u00e1c s\u1ea3n ph\u1ea9m g\u1ed1m s\u1ee9. Hi\u1ec7n nay, trong l\u0129nh v\u1ef1c cacbua xi m\u0103ng, thi\u00eau k\u1ebft \u00e1p su\u1ea5t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i theo ba c\u00e1ch sau: thi\u00eau k\u1ebft \u00e9p \u0111\u1eb3ng t\u0129nh n\u00f3ng, thi\u00eau k\u1ebft \u00e9p n\u00f3ng v\u00e0 thi\u00eau k\u1ebft \u00e1p su\u1ea5t kh\u00ed.<\/p>\n\n\n\n

L\u00f2 thi\u00eau k\u1ebft \u00e9p n\u00f3ng<\/strong><\/h3>\n\n\n\n

Thi\u00eau k\u1ebft \u00e9p n\u00f3ng \u0111\u1ec1 c\u1eadp \u0111\u1ebfn ph\u01b0\u01a1ng ph\u00e1p thi\u00eau k\u1ebft trong \u0111\u00f3 b\u1ed9t kh\u00f4 \u0111\u01b0\u1ee3c \u0111\u1ed5 v\u00e0o m\u00f4 h\u00ecnh, sau \u0111\u00f3 \u0111\u01b0\u1ee3c nung n\u00f3ng trong khi \u0111\u01b0\u1ee3c \u00e9p t\u1eeb h\u01b0\u1edbng m\u1ed9t tr\u1ee5c \u0111\u1ec3 ho\u00e0n th\u00e0nh qu\u00e1 tr\u00ecnh \u0111\u00fac v\u00e0 thi\u00eau k\u1ebft c\u00f9ng m\u1ed9t l\u00fac.<\/p>\n\n\n\n

B\u1edfi v\u00ec qu\u00e1 tr\u00ecnh gia nhi\u1ec7t v\u00e0 \u0111i\u1ec1u \u00e1p \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u1ed3ng th\u1eddi, b\u1ed9t \u1edf tr\u1ea1ng th\u00e1i nhi\u1ec7t d\u1ebbo, c\u00f3 l\u1ee3i cho s\u1ef1 khu\u1ebfch t\u00e1n ti\u1ebfp x\u00fac c\u1ee7a c\u00e1c h\u1ea1t v\u00e0 qu\u00e1 tr\u00ecnh truy\u1ec1n d\u00f2ng ch\u1ea3y v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng. V\u00ec v\u1eady, \u00e1p su\u1ea5t \u00e9p khu\u00f4n ch\u1ec9 b\u1eb1ng 1\/10 \u00e1p su\u1ea5t \u00e9p ngu\u1ed9i (\u00e1p su\u1ea5t \u00e9p ngu\u1ed9i kho\u1ea3ng 630mpa); N\u00f3 c\u0169ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 thi\u00eau k\u1ebft v\u00e0 r\u00fat ng\u1eafn th\u1eddi gian thi\u00eau k\u1ebft, \u0111\u1ec3 ch\u1ed1ng l\u1ea1i s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a h\u1ea1t v\u00e0 thu \u0111\u01b0\u1ee3c c\u00e1c s\u1ea3n ph\u1ea9m c\u00f3 h\u1ea1t m\u1ecbn, m\u1eadt \u0111\u1ed9 cao v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 v\u00e0 \u0111i\u1ec7n t\u1ed1t. N\u00f3 c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m g\u1ed1m c\u00f3 \u0111\u1ed9 tinh khi\u1ebft c\u1ef1c cao m\u00e0 kh\u00f4ng c\u1ea7n th\u00eam ch\u1ea5t h\u1ed7 tr\u1ee3 thi\u00eau k\u1ebft ho\u1eb7c khu\u00f4n \u0111\u00fac. Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft \u00e9p n\u00f3ng l\u00e0 quy tr\u00ecnh v\u00e0 thi\u1ebft b\u1ecb ph\u1ee9c t\u1ea1p, y\u00eau c\u1ea7u ki\u1ec3m so\u00e1t s\u1ea3n xu\u1ea5t nghi\u00eam ng\u1eb7t, y\u00eau c\u1ea7u cao v\u1ec1 v\u1eadt li\u1ec7u khu\u00f4n, ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng l\u1edbn, hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t th\u1ea5p v\u00e0 chi ph\u00ed s\u1ea3n xu\u1ea5t cao.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

L\u00f2 thi\u00eau k\u1ebft t\u00edch h\u1ee3p \u00e9p \u0111\u1eb3ng nhi\u1ec7t n\u00f3ng<\/strong><\/h3>\n\n\n\n

\u00c9p \u0111\u1eb3ng t\u0129nh n\u00f3ng l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t t\u00edch h\u1ee3p nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u00e1p su\u1ea5t cao. Nhi\u1ec7t \u0111\u1ed9 gia nhi\u1ec7t th\u01b0\u1eddng l\u00e0 1000 ~ 2000oC v\u00e0 \u00e1p su\u1ea5t l\u00e0m vi\u1ec7c c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 200MPa b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng kh\u00ed tr\u01a1 ho\u1eb7c nit\u01a1 \u00e1p su\u1ea5t cao trong th\u00f9ng k\u00edn l\u00e0m m\u00f4i tr\u01b0\u1eddng truy\u1ec1n \u00e1p su\u1ea5t. D\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng chung c\u1ee7a nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u00e1p su\u1ea5t cao, ph\u00f4i \u0111\u01b0\u1ee3c n\u00e9n \u0111\u1ed3ng \u0111\u1ec1u theo m\u1ecdi h\u01b0\u1edbng. V\u00ec v\u1eady, s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c gia c\u00f4ng c\u00f3 \u0111\u1ed9 n\u00e9n cao, \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u t\u1ed1t v\u00e0 hi\u1ec7u su\u1ea5t tuy\u1ec7t v\u1eddi. B\u1edfi v\u00ec m\u1eadt \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u, t\u1ef7 l\u1ec7 gi\u1eefa chi\u1ec1u d\u00e0i v\u00e0 \u0111\u01b0\u1eddng k\u00ednh kh\u00f4ng b\u1ecb gi\u1edbi h\u1ea1n, \u0111i\u1ec1u n\u00e0y c\u00f3 l\u1ee3i cho vi\u1ec7c s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m m\u1ecfng v\u00e0 d\u00e0i h\u00ecnh que v\u00e0 h\u00ecnh \u1ed1ng. H\u01a1n n\u1eefa, qu\u00e1 tr\u00ecnh \u00e9p \u0111\u1eb3ng nhi\u1ec7t n\u00f3ng n\u00f3i chung kh\u00f4ng c\u1ea7n th\u00eam ch\u1ea5t b\u00f4i tr\u01a1n v\u00e0o b\u1ed9t, \u0111i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 l\u00e0m gi\u1ea3m \u00f4 nhi\u1ec5m c\u1ee7a s\u1ea3n ph\u1ea9m m\u00e0 c\u00f2n \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

\u0110\u1ed9 n\u00e9n c\u1ee7a s\u1ea3n ph\u1ea9m thi\u00eau k\u1ebft c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 b\u1eb1ng c\u00e1ch x\u1eed l\u00fd n\u00f3 trong m\u00e1y \u00e9p \u0111\u1eb3ng nhi\u1ec7t n\u00f3ng trong \u0111i\u1ec1u ki\u1ec7n \u00e1p su\u1ea5t 80-150mpa v\u00e0 nhi\u1ec7t \u0111\u1ed9 1320-1400 ~ C trong m\u1ed9t th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 x\u1ed1p c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 gi\u1ea3m xu\u1ed1ng 1\/20 -1\/100 ho\u1eb7c th\u1eadm ch\u00ed th\u1ea5p h\u01a1n m\u1ee9c tr\u01b0\u1edbc khi \u0111i\u1ec1u tr\u1ecb kh\u1edbp h\u00e1ng, \u0111\u1ed9 b\u1ec1n u\u1ed1n v\u00e0 tu\u1ed5i th\u1ecd s\u1eed d\u1ee5ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3. Tuy nhi\u00ean, thi\u1ebft k\u1ebf v\u00e0 \u0111i\u1ec1u khi\u1ec3n thi\u1ebft b\u1ecb h\u00f4ng \u0111\u1eaft ti\u1ec1n, vi\u1ec7c b\u1ea3o tr\u00ec v\u00e0 v\u1eadn h\u00e0nh ph\u1ee9c t\u1ea1p n\u00ean n\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong cacbua xi m\u0103ng.<\/p>\n\n\n\n

L\u00f2 thi\u00eau k\u1ebft \u00e1p su\u1ea5t kh\u00ed<\/strong><\/h3>\n\n\n\n

Thi\u00eau k\u1ebft \u00e1p su\u1ea5t kh\u00f4ng kh\u00ed c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 thi\u00eau k\u1ebft qu\u00e1 \u00e1p ho\u1eb7c thi\u00eau k\u1ebft \u00e9p \u0111\u1eb3ng t\u0129nh n\u00f3ng \u00e1p su\u1ea5t th\u1ea5p. \u0110\u00e2y l\u00e0 m\u1ed9t lo\u1ea1i quy tr\u00ecnh \u00e9p v\u00e0 thi\u00eau k\u1ebft \u0111\u1eb3ng nhi\u1ec7t n\u00f3ng d\u00e0nh cho ph\u00f4i \u1edf \u00e1p su\u1ea5t th\u1ea5p h\u01a1n \u00e9p \u0111\u1eb3ng t\u0129nh n\u00f3ng (kho\u1ea3ng 6Mpa), ph\u00f9 h\u1ee3p h\u01a1n cho s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t. <\/p>\n\n\n\n

gas pressure sintering is developed on the basis of vacuum sintering and hot isostatic pressing. The previous concept believed that it requires a large pressure to eliminate the pores in the alloy at the sintering temperature. Later, it was found that at the sintering temperature, a lower pressure can also eliminate the pores in the alloy and avoid the defects of ‘cobalt pool’ in the alloy caused by high pressure. Low pressure sintering can obtain better comprehensive properties than the alloy treated by hot isostatic pressing. Air pressure sintering has advantages in producing large-size cemented carbide products.<\/p>\n\n\n\n

Nguy\u00ean l\u00fd l\u00e0m vi\u1ec7c c\u1ee5 th\u1ec3 c\u1ee7a n\u00f3 l\u00e0 sau khi t\u1ea9y s\u00e1p b\u1eb1ng hydro \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n, qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft ch\u00e2n kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf 1350 ~ 1450oC trong m\u1ed9t kho\u1ea3ng th\u1eddi gian, sau \u0111\u00f3 ti\u1ebfn h\u00e0nh \u00e9p \u0111\u1eb3ng t\u0129nh g\u1ea7n nh\u01b0 n\u00f3ng trong c\u00f9ng m\u1ed9t l\u00f2. Argon \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m m\u00f4i tr\u01b0\u1eddng \u00e1p su\u1ea5t, \u00e1p su\u1ea5t \u00e9p kho\u1ea3ng 6Mpa, sau \u0111\u00f3 n\u00f3 \u0111\u01b0\u1ee3c gi\u1eef trong m\u1ed9t th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh, sau \u0111\u00f3 \u0111\u01b0\u1ee3c l\u00e0m m\u00e1t.<\/p>\n\n\n\n

so v\u1edbi thi\u00eau k\u1ebft HIP <\/h4>\n\n\n\n

Because the sintering and hot isostatic pressing of the alloy products in the gas pressure sintering furnace are carried out in the same sintering furnace. According to a large number of production data, gas pressure sintering can avoid the “coarse grain” and other structural defects that are easy to appear after conventional hot isostatic pressing treatment\uff0cand improve the strength and hardness of the tungsten alloy products to a certain extent. <\/p>\n\n\n\n

T\u1ea5t c\u1ea3 c\u00e1c quy tr\u00ecnh \u0111\u1ec1u \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong c\u00f9ng m\u1ed9t th\u00e2n l\u00f2, gi\u00fap ti\u1ebft ki\u1ec7m r\u1ea5t nhi\u1ec1u chi ph\u00ed \u0111\u1ea7u t\u01b0 thi\u1ebft b\u1ecb. Chi ph\u00ed x\u1eed l\u00fd qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft \u00e1p su\u1ea5t kh\u00ed th\u1ea5p g\u1ea5p \u0111\u00f4i so v\u1edbi qu\u00e1 tr\u00ecnh \u00e9p \u0111\u1eb3ng t\u0129nh n\u00f3ng sau khi thi\u00eau k\u1ebft ch\u00e2n kh\u00f4ng, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 tu\u1ed5i th\u1ecd c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

L\u00f2 thi\u00eau k\u1ebft \u00e1p su\u1ea5t kh\u00ed 6Mpa c\u00f3 ch\u1ee9c n\u0103ng t\u1ea9y nh\u1eddn \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o s\u1ea3n xu\u1ea5t t\u1ea1i Meetyoucarbide <\/h4>\n\n\n\n
\"\"
l\u00f2 thi\u00eau k\u1ebft \u00e1p su\u1ea5t kh\u00ed<\/figcaption><\/figure>\n\n\n\n
c\u00e1c lo\u1ea1i<\/strong><\/td>RDE-224-6<\/strong><\/strong><\/td>RDE-3312-6<\/strong><\/strong><\/td>RDE-4412-6<\/strong><\/strong><\/td>RDE-5512-6<\/strong><\/strong><\/td>RDE-5518-6<\/strong><\/strong><\/td>RDE-5527-6<\/strong><\/strong><\/td><\/tr>
Kh\u00f4ng gian hi\u1ec7u qu\u1ea3 (w * h * l)<\/td>200*200*400mm<\/td>300*300*1200mm<\/td>400*400*1200mm<\/td>500*500*1200mm<\/td>500*500*1800mm<\/td>500*500*2700mm<\/td><\/tr>
t\u1ea3i t\u1ed1i \u0111a<\/td>50kg<\/td>300kg<\/td>500kg<\/td>1200kg<\/td>1500kg<\/td>2500kg<\/td><\/tr>
l\u00f2 s\u01b0\u1edfi<\/td>240KVA<\/td>320KVA<\/td>320KVA<\/td>430KVA<\/td>560KVA<\/td>900KVA<\/td><\/tr>
kh\u00f4ng gian s\u01b0\u1edfi \u1ea5m<\/td>kh\u00f4ng gian \u2161<\/td>kh\u00f4ng gian \u2162<\/td>kh\u00f4ng gian \u2162<\/td>kh\u00f4ng gian \u2162<\/td>kh\u00f4ng gian \u2162<\/td>kh\u00f4ng gian \u2165<\/td><\/tr>
chi ph\u00ed th\u1eddi gian l\u00e0m m\u00e1t<\/td>2h<\/td>4h<\/td>5h<\/td>6h<\/td>7h<\/td>8h<\/td><\/tr>
 <\/td><\/td><\/tr>
tu\u1ed5i th\u1ecd<\/td>20 n\u0103m\/6000 l\u1ea7n<\/td><\/tr>
\u00e1p su\u1ea5t l\u00e0m vi\u1ec7c t\u1ed1i \u0111a<\/td>58bar<\/td><\/tr>
nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c t\u1ed1i \u0111a<\/td>1580oC, 2100oC<\/td><\/tr>
nhi\u1ec7t \u0111\u1ed9. ph\u01b0\u01a1ng ph\u00e1p g\u00e2y r\u1ed1i<\/td>C\u1eb7p nhi\u1ec7t \u0111i\u1ec7n W-Re5\/26<\/td><\/tr>
Ch\u00e2n kh\u00f4ng c\u1ef1c cao<\/td>1Pa<\/td><\/tr>
T\u1ef7 l\u1ec7 r\u00f2 r\u1ec9 ch\u00e2n kh\u00f4ng<\/td>3Pa\/gi\u1edd<\/td><\/tr>
hi\u1ec7u qu\u1ea3 thu th\u1eadp s\u00e1p<\/td>\u226598%<\/td><\/tr>
Lo\u1ea1i ch\u1ea5t t\u1ea1o h\u00ecnh<\/td>Paraffin, PEG, cao su, ethyl cellulose, v.v.<\/td><\/tr>
kh\u00ed \u0111\u01b0\u1ee3c ph\u00e9p \u0111\u1ed5 \u0111\u1ea7y<\/td>Nit\u01a1, argon v\u00e0 hydro<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

To know sintering furnace of cemented carbide, we should review the sintering process of cemented carbide at first. The function of the sintering furnace is to heat  cemented carbide preforms to a certain temperature (sintering temperature), keep them for a certain time (holding time), and then cool them down to obtain the cemented carbide final…<\/p>","protected":false},"author":2,"featured_media":21340,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[79],"tags":[],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2022\/08\/image-13.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/21338"}],"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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/comments?post=21338"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/21338\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media\/21340"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media?parent=21338"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/categories?post=21338"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/tags?post=21338"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}