{"id":20698,"date":"2021-08-16T08:03:51","date_gmt":"2021-08-16T08:03:51","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=20698"},"modified":"2021-08-16T08:03:58","modified_gmt":"2021-08-16T08:03:58","slug":"is-powder-metallurgy-a-complicate-process-to-form-a-work-piece","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/vi\/is-powder-metallurgy-a-complicate-process-to-form-a-work-piece\/","title":{"rendered":"Luy\u1ec7n kim b\u1ed9t c\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t quy tr\u00ecnh ph\u1ee9c t\u1ea1p \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t s\u1ea3n ph\u1ea9m kh\u00f4ng"},"content":{"rendered":"
\n

Luy\u1ec7n kim b\u1ed9t, \u0111\u00fang nh\u01b0 t\u00ean g\u1ecdi c\u1ee7a n\u00f3, l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 luy\u1ec7n kim \u0111\u1eb7c bi\u1ec7t. Luy\u1ec7n kim b\u1ed9t l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh quan tr\u1ecdng, th\u1eadm ch\u00ed \u0111\u00f4i khi l\u00e0 ph\u01b0\u01a1ng ph\u00e1p duy nh\u1ea5t \u0111\u1ec3 s\u1ea3n xu\u1ea5t v\u1eadt li\u1ec7u c\u00f4ng ngh\u1ec7 cao v\u00e0 m\u1edbi. K\u1ec3 t\u1eeb khi xu\u1ea5t hi\u1ec7n \u1ed5 tr\u1ee5c d\u1ea7u kim lo\u1ea1i thi\u00eau k\u1ebft v\u00e0o nh\u1eefng n\u0103m 1920, c\u00f9ng v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p \u00f4 t\u00f4, luy\u1ec7n kim b\u1ed9t \u0111\u00e3 d\u1ea7n h\u00ecnh th\u00e0nh m\u1ed9t c\u00f4ng ngh\u1ec7 t\u1ea1o h\u00ecnh kim lo\u1ea1i \u0111\u1eb7c bi\u1ec7t c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c, hi\u1ec7u su\u1ea5t cao, ti\u00eau th\u1ee5 th\u1ea5p, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 gi\u00e1 th\u00e0nh th\u1ea5p cho s\u1ea3n xu\u1ea5t m\u00e1y m\u00f3c v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn \u0111i\u1ec7n b\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p chu\u1ea9n b\u1ecb v\u1eadt li\u1ec7u v\u1edbi c\u00f4ng ngh\u1ec7 t\u1ea1o h\u00ecnh kim lo\u1ea1i, v\u00e0 \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong \u00f4 t\u00f4, xe m\u00e1y, \u0111\u1ed3 gia d\u1ee5ng, m\u00e1y m\u00f3c v\u0103n ph\u00f2ng, m\u00e1y m\u00f3c n\u00f4ng nghi\u1ec7p v\u00e0 m\u00e1y m\u00f3c k\u1ef9 thu\u1eadt, D\u1ee5ng c\u1ee5 \u0111i\u1ec7n v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i,<\/p>\n\n\n\n

V\u1eadt li\u1ec7u luy\u1ec7n kim b\u1ed9t kh\u00f4ng ch\u1ec9 l\u00e0 v\u1eadt li\u1ec7u g\u1ed1c s\u1eaft m\u00e0 c\u00f2n l\u00e0 v\u1eadt li\u1ec7u ch\u00ednh:<\/p>\n\n\n\n

1. Cacbua xi m\u0103ng:<\/h2>\n\n\n\n

Cacbua xi m\u0103ng l\u00e0 v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p luy\u1ec7n kim b\u1ed9t v\u1edbi m\u1ed9t ho\u1eb7c m\u1ed9t s\u1ed1 lo\u1ea1i b\u1ed9t cacbua ch\u1ecbu l\u1eeda l\u00e0m th\u00e0nh ph\u1ea7n ch\u00ednh v\u00e0 b\u1ed9t coban l\u00e0m li\u00ean k\u1ebft. C\u00e1c cacbua xi m\u0103ng th\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c chia th\u00e0nh coban vonfram, titan coban vonfram v\u00e0 tantalum titan vonfram (niobium) theo th\u00e0nh ph\u1ea7n v\u00e0 \u0111\u1eb7c t\u00ednh hi\u1ec7u su\u1ea5t c\u1ee7a ch\u00fang. Cacbua xi m\u0103ng c\u00f3 \u0111\u1ed9 c\u1ee9ng cao, \u0111\u1ed9 c\u1ee9ng nhi\u1ec7t cao, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 n\u00e9n cao, nh\u01b0ng \u0111\u1ed9 b\u1ec1n u\u1ed1n th\u1ea5p v\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9m. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 ch\u1ed1ng oxy h\u00f3a t\u1ed1t. H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf tuy\u1ebfn t\u00ednh nh\u1ecf nh\u01b0ng \u0111\u1ed9 d\u1eabn nhi\u1ec7t k\u00e9m.<\/p>\n\n\n\n

2. V\u1eadt li\u1ec7u ch\u1ed1ng ma s\u00e1t luy\u1ec7n kim b\u1ed9t:<\/h2>\n\n\n\n

Luy\u1ec7n kim b\u1ed9t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh v\u1eadt li\u1ec7u g\u1ed1c s\u1eaft v\u00e0 v\u1eadt li\u1ec7u g\u1ed1c \u0111\u1ed3ng theo c\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh \u0111\u01b0\u1ee3c th\u00eam v\u00e0o c\u1ee7a ma tr\u1eadn. V\u1eadt li\u1ec7u ch\u1ed1ng ma s\u00e1t g\u1ed1c s\u1eaft th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0 h\u1ee3p kim b\u1ed9t than ch\u00ec s\u1eaft v\u00e0 h\u1ee3p kim b\u1ed9t than ch\u00ec l\u01b0u hu\u1ef3nh s\u1eaft. C\u1ea5u tr\u00fac vi m\u00f4 tr\u01b0\u1edbc \u0111\u00e2y l\u00e0 ma tr\u1eadn ng\u1ecdc trai + ferrite + xi m\u0103ng + than ch\u00ec + l\u1ed7 ch\u00e2n l\u00f4ng; Ngo\u00e0i c\u1ea5u tr\u00fac t\u01b0\u01a1ng t\u1ef1 nh\u01b0 lo\u1ea1i tr\u01b0\u1edbc, lo\u1ea1i sau c\u00f2n c\u00f3 sunfua, c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n h\u01a1n n\u1eefa kh\u1ea3 n\u0103ng ch\u1ed1ng ma s\u00e1t. V\u1eadt li\u1ec7u ch\u1ed1ng ma s\u00e1t luy\u1ec7n kim b\u1ed9t th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t v\u00f2ng bi c\u00f3 t\u1ed1c \u0111\u1ed9 trung b\u00ecnh v\u00e0 t\u1ea3i nh\u1eb9, \u0111\u1eb7c bi\u1ec7t th\u00edch h\u1ee3p cho c\u00e1c v\u00f2ng bi kh\u00f4ng th\u1ec3 ti\u1ebfp nhi\u00ean li\u1ec7u th\u01b0\u1eddng xuy\u00ean, ch\u1eb3ng h\u1ea1n nh\u01b0 v\u00f2ng bi c\u1ee7a m\u00e1y d\u1ec7t, m\u00e1y l\u00e0m phim, m\u00e1y m\u00f3c th\u1ef1c ph\u1ea9m v\u00e0 thi\u1ebft b\u1ecb gia d\u1ee5ng. Ch\u00fang c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u00f4 t\u00f4, m\u00e1y k\u00e9o v\u00e0 \u0111\u1ed9ng c\u01a1 m\u00e1y c\u00f4ng c\u1ee5.<\/p>\n\n\n\n

3. V\u1eadt li\u1ec7u k\u1ebft c\u1ea5u luy\u1ec7n kim b\u1ed9t:<\/h2>\n\n\n\n

V\u1eadt li\u1ec7u k\u1ebft c\u1ea5u luy\u1ec7n kim b\u1ed9t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh v\u1eadt li\u1ec7u g\u1ed1c s\u1eaft v\u00e0 \u0111\u1ed3ng theo c\u00e1c kim lo\u1ea1i c\u01a1 b\u1ea3n kh\u00e1c nhau. So v\u1edbi v\u1eadt li\u1ec7u k\u1ebft c\u1ea5u g\u1ed1c s\u1eaft, v\u1eadt li\u1ec7u k\u1ebft c\u1ea5u g\u1ed1c \u0111\u1ed3ng c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o th\u1ea5p, \u0111\u1ed9 d\u1ebbo v\u00e0 \u0111\u1ed9 b\u1ec1n cao, d\u1eabn \u0111i\u1ec7n t\u1ed1t, d\u1eabn nhi\u1ec7t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n. Ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd m\u1ea1 kh\u00e1c nhau. Ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c b\u1ed9 ph\u1eadn d\u1ee5ng c\u1ee5 c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng nh\u1ecf, h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p, \u0111\u1ed9 ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc cao v\u00e0 \u1ee9ng su\u1ea5t th\u1ea5p, c\u0169ng nh\u01b0 c\u00e1c b\u1ed9 ph\u1eadn s\u1ea3n ph\u1ea9m \u0111i\u1ec7n v\u00e0 c\u01a1 kh\u00ed, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u00e1nh r\u0103ng m\u00f4-\u0111un nh\u1ecf, cam, \u1ed1c v\u00edt, van, b\u1ed9 ch\u1ed1t v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn c\u1ea5u tr\u00fac kh\u00e1c.<\/p>\n\n\n\n

4. V\u1eadt li\u1ec7u ma s\u00e1t luy\u1ec7n kim b\u1ed9t:<\/h2>\n\n\n\n

V\u1eadt li\u1ec7u ma s\u00e1t luy\u1ec7n kim b\u1ed9t \u0111\u01b0\u1ee3c chia th\u00e0nh v\u1eadt li\u1ec7u g\u1ed1c s\u1eaft v\u00e0 \u0111\u1ed3ng theo c\u00e1c kim lo\u1ea1i c\u01a1 b\u1ea3n kh\u00e1c nhau, v\u00e0 v\u1eadt li\u1ec7u kh\u00f4 v\u00e0 \u01b0\u1edbt theo c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c kh\u00e1c nhau. V\u1eadt li\u1ec7u \u01b0\u1edbt th\u00edch h\u1ee3p \u0111\u1ec3 l\u00e0m vi\u1ec7c trong d\u1ea7u. V\u1eadt li\u1ec7u ma s\u00e1t luy\u1ec7n kim b\u1ed9t ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ebf t\u1ea1o b\u1ed9 ly h\u1ee3p v\u00e0 phanh tr\u00ean m\u00e1y c\u00f4ng c\u1ee5, m\u00e1y k\u00e9o, \u00f4 t\u00f4, ph\u01b0\u01a1ng ti\u1ec7n khai th\u00e1c m\u1ecf, m\u00e1y x\u00e2y d\u1ef1ng v\u00e0 m\u00e1y bay.<\/p>\n\n\n\n

The process is also very difficult. As the landlord said, you can do it by buying some better equipment. Of course, you don’t object. The products made with good equipment have good stability and high precision. Let me give you a few simple examples in terms of process difficulty<\/p>\n\n\n\n

\"\"ph\u1ee5 t\u00f9ng<\/h2>\n\n\n\n

V\u00ed d\u1ee5: kh\u00e1ch h\u00e0ng c\u00f3 y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 k\u00edn kh\u00ed \u0111\u1ed1i v\u1edbi b\u1ed9 ph\u1eadn n\u00e0y. Th\u00f4ng qua vi\u1ec7c b\u00f4i \u0111en, s\u1ebd kh\u00f4ng c\u00f3 r\u00f2 r\u1ec9 kh\u00f4ng kh\u00ed d\u01b0\u1edbi \u00e1p su\u1ea5t kh\u00f4ng kh\u00ed nh\u1ea5t \u0111\u1ecbnh, nh\u01b0ng kh\u00e1ch h\u00e0ng s\u1ebd r\u00f2 r\u1ec9 d\u01b0\u1edbi \u00e1p su\u1ea5t kh\u00f4ng kh\u00ed c\u1ea7n thi\u1ebft. Nh\u1eefng g\u00ec b\u1ea1n n\u00ean l\u00e0m?<\/p>\n\n\n\n

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

B\u1ed9 ph\u1eadn c\u1ea3m bi\u1ebfn<\/h2>\n\n\n\n

V\u00ed d\u1ee5 kh\u00e1c, lo\u1ea1i c\u1ea3m bi\u1ebfn n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c kh\u00e1ch h\u00e0ng s\u1eed d\u1ee5ng \u0111\u1ec3 h\u00e0n v\u00ec n\u00f3 \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng luy\u1ec7n kim b\u1ed9t v\u00e0 c\u00f3 c\u00e1c kho\u1ea3ng tr\u1ed1ng trong kim lo\u1ea1i, nh\u01b0 trong h\u00ecnh.<\/p>\n\n\n\n

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

Kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c kim lo\u1ea1i<\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n

The customer found bubbles in the welding process, resulting in poor welding. After metallographic analysis, the metallography did not meet the customer’s requirements. What should you do? There are also high frequencies such as lock pin holes<\/p>\n\n\n\n

Y\u00eau c\u1ea7u c\u1ee7a m\u1ed7i s\u1ea3n ph\u1ea9m l\u00e0 kh\u00e1c nhau, quy tr\u00ecnh kh\u00e1c nhau v\u00e0 \u0111\u1ed9 kh\u00f3 c\u1ee7a s\u1ea3n ph\u1ea9m c\u0169ng kh\u00e1c nhau. M\u1ed7i quy tr\u00ecnh c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh m\u1ed9t kh\u00f3 kh\u0103n \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

Thi\u1ebft b\u1ecb t\u1ed1t l\u00e0 quan tr\u1ecdng nh\u01b0ng kinh nghi\u1ec7m phong ph\u00fa c\u1ee7a c\u00f4ng nh\u00e2n thi\u1ebft k\u1ebf c\u00f2n quan tr\u1ecdng h\u01a1n.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Powder metallurgy, as its name suggests, is a special metallurgical technology. Powder metallurgy is an important process, sometimes even the only method, for manufacturing high and new technology materials. Since the emergence of sintered metal oil bearing in the 1920s, with the development of automobile industry, powder metallurgy has gradually formed a special metal forming…<\/p>","protected":false},"author":2,"featured_media":20702,"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\/2021\/08\/\u56fe\u72471-2.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/20698"}],"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=20698"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/20698\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media\/20702"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media?parent=20698"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/categories?post=20698"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/tags?post=20698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}