{"id":3359,"date":"2019-03-13T02:03:29","date_gmt":"2019-03-13T02:03:29","guid":{"rendered":"https:\/\/www.mcctcarbide.com\/?p=3359"},"modified":"2020-05-06T05:54:24","modified_gmt":"2020-05-06T05:54:24","slug":"choose-pvd-or-cvd-how-to-better-choose-the-coating-of-cutters","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/vi\/select-pvd-or-cvd-how-to-better-select-the-coat-of-cutters\/","title":{"rendered":"PVD hay CVD? L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn l\u1edbp ph\u1ee7 t\u1ed1t h\u01a1n cho m\u00e1y c\u1eaft"},"content":{"rendered":"<div class=\"vgblk-rw-wrapper limit-wrapper\">\n<p>PVD v\u00e0 CVD hi\u1ec7n \u0111ang x\u1eed l\u00fd r\u1ea5t ph\u1ed5 bi\u1ebfn cho x\u1eed l\u00fd b\u1ec1 m\u1eb7t tr\u00ean d\u1ee5ng c\u1ee5 v\u00e0 khu\u00f4n. CVD d\u1ef1a tr\u00ean s\u1ef1 l\u1eafng \u0111\u1ecdng h\u01a1i h\u00f3a h\u1ecdc, trong khi PVD d\u1ef1a tr\u00ean s\u1ef1 l\u1eafng \u0111\u1ecdng h\u01a1i v\u1eadt l\u00fd, do s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 nguy\u00ean t\u1eafc c\u1ee7a ch\u00fang, d\u1eabn \u0111\u1ebfn l\u1edbp ph\u1ee7 cu\u1ed1i c\u00f9ng c\u1ee7a ch\u00fang. K\u1ebft qu\u1ea3 l\u1edbp c\u0169ng kh\u00e1c nhau, v\u1edbi s\u1ef1 nh\u1ea5n m\u1ea1nh kh\u00e1c nhau v\u00e0o c\u00e1c \u1ee9ng d\u1ee5ng.<\/p>\n\n\n\n<p>PVD (l\u1eafng \u0111\u1ecdng h\u01a1i v\u1eadt l\u00fd) l\u00e0 c\u00f4ng ngh\u1ec7 ph\u00f3ng \u0111i\u1ec7n h\u1ed3 quang \u0111i\u1ec7n \u00e1p th\u1ea5p v\u00e0 d\u00f2ng \u0111i\u1ec7n cao l\u00e0m bay h\u01a1i m\u1ee5c ti\u00eau kim lo\u1ea1i v\u00e0 l\u00e0m ion h\u00f3a c\u1ea3 ch\u1ea5t h\u00f3a h\u01a1i v\u00e0 kh\u00ed trong \u0111i\u1ec1u ki\u1ec7n ch\u00e2n kh\u00f4ng. M\u1ed9t m\u00e0ng si\u00eau c\u1ee9ng 10um \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh tr\u00ean b\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m. M\u1ed9t c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn trong l\u0129nh v\u1ef1c x\u1eed l\u00fd b\u1ec1 m\u1eb7t c\u00f4ng ngh\u1ec7 m\u1edbi. S\u1ea3n ph\u1ea9m b\u1ea1c tr\u00e1ng ph\u1ee7 PVD si\u00eau c\u1ee9ng n\u00e0y \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh m\u1ed9t m\u00e0ng trong bu\u1ed3ng k\u00edn ch\u00e2n kh\u00f4ng, v\u00ec v\u1eady n\u00f3 h\u1ea7u nh\u01b0 kh\u00f4ng g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng. PVD c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng c\u00f3 \u0111\u01b0\u1ee3c l\u1edbp ph\u1ee7 g\u1ed1m v\u00e0 l\u1edbp ph\u1ee7 composite c\u00f3 \u0111\u1ed9 c\u1ee9ng cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao, kh\u00f3 c\u00f3 \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho c\u00e1c b\u1ed9 ph\u1eadn khu\u00f4n c\u00f4ng c\u1ee5 \u0111\u1ec3 t\u0103ng g\u1ea5p \u0111\u00f4i tu\u1ed5i th\u1ecd v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c chi ph\u00ed th\u1ea5p v\u00e0 l\u1ee3i nhu\u1eadn cao. <\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2020\/05\/2_\u56fe\u72475-2.png\" alt=\"\" class=\"wp-image-3365\" title=\"\"><\/figure>\n\n\n\n<p>PVD m\u1ecfng h\u01a1n CVD, \u0111\u1ed9 d\u00e0y l\u1edbp ph\u1ee7 CVD l\u00e0 10 ~ 20\u03bcm v\u00e0 \u0111\u1ed9 d\u00e0y l\u1edbp ph\u1ee7 PVD ch\u1ec9 kho\u1ea3ng 3 ~ 5\u03bcm. Nhi\u1ec7t \u0111\u1ed9 x\u1eed l\u00fd c\u1ee7a PVD l\u00e0 kho\u1ea3ng 500 \u00b0 C, trong khi nhi\u1ec7t \u0111\u1ed9 b\u00ean trong l\u00f2 CVD l\u00e0 800 ~ 1000 \u00b0 C. C\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng v\u00ec nhi\u1ec7t \u0111\u1ed9 cao, CVD c\u00f3 y\u00eau c\u1ea7u v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao \u0111\u1ed1i v\u1edbi v\u1eadt li\u1ec7u c\u1ea7n x\u1eed l\u00fd. Ch\u00fang ta kh\u00f3 c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y b\u1ea5t c\u1ee9 th\u1ee9 g\u00ec ngo\u00e0i cacbua xi m\u0103ng tr\u00ean c\u00e1c c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c x\u1eed l\u00fd CVD b\u1edfi v\u00ec ch\u1ec9 c\u00e1c h\u1ee3p kim c\u1ee9ng trong v\u1eadt li\u1ec7u c\u1eaft ch\u00ednh c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao nh\u01b0 v\u1eady.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2020\/05\/pic1-1.png\" alt=\"\" class=\"wp-image-3367\" title=\"\"><\/figure>\n\n\n\n<p>Ngo\u00e0i ra, l\u1edbp ph\u1ee7 CVD c\u00f3 nhi\u1ec7t \u0111\u1ed9 x\u1eed l\u00fd t\u01b0\u01a1ng \u0111\u1ed1i cao do \u0111\u1ed9 d\u00e0y c\u1ee7a n\u00f3, v\u00e0 \u1ee9ng su\u1ea5t k\u00e9o d\u1ec5 d\u00e0ng \u0111\u01b0\u1ee3c t\u1ea1o ra tr\u00ean b\u1ec1 m\u1eb7t trong qu\u00e1 tr\u00ecnh l\u00e0m m\u00e1t \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u00e1c v\u1ebft n\u1ee9t m\u1ecbn. C\u00e1c v\u1ebft n\u1ee9t n\u00e0y d\u1ec5 d\u00e0ng lan r\u1ed9ng d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng b\u00ean ngo\u00e0i (v\u00ed d\u1ee5: phay) v\u00e0 l\u1edbp ph\u1ee7 bong ra sau khi n\u00f3 k\u00e9o d\u00e0i qua to\u00e0n b\u1ed9 l\u1edbp ph\u1ee7, do \u0111\u00f3 l\u00e0m m\u1ea5t c\u01a1 s\u1edf b\u1ea3o v\u1ec7 l\u1edbp ph\u1ee7. Do \u0111\u00f3, c\u00e1c c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c ph\u1ee7 CVD \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn v\u1eadt li\u1ec7u ti\u1ec7n v\u00ec l\u1ef1c c\u1eaft \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 li\u00ean t\u1ee5c trong to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh c\u1eaft. T\u1ea1i th\u1eddi \u0111i\u1ec3m n\u00e0y, l\u1edbp ph\u1ee7 CVD \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh b\u1edfi kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u1ee7a \u0111\u1ed9 d\u00e0y. Th\u1eadt r\u00f5 r\u00e0ng.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2020\/05\/\u56fe\u72476-1.png\" alt=\"\" class=\"wp-image-3368\" title=\"\"><\/figure>\n\n\n\n<p>Ng\u01b0\u1ee3c l\u1ea1i, c\u1eaft gi\u00e1n \u0111o\u1ea1n \u0111\u1ea1i di\u1ec7n b\u1edfi phay. Trong qu\u00e1 tr\u00ecnh c\u1eaft, vi\u1ec7c c\u1eaft li\u00ean t\u1ee5c c\u1ee7a l\u01b0\u1ee1i c\u1eaft \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u1edbp ph\u1ee7 v\u00e0 b\u1ec1 m\u1eb7t c\u1ee7a d\u1ee5ng c\u1ee5. Nhi\u1ec7t \u0111\u1ed9 x\u1eed l\u00fd th\u1ea5p h\u01a1n c\u1ee7a PVD (kho\u1ea3ng 500 \u00b0 C) l\u00e0m cho n\u00f3 h\u00ecnh th\u00e0nh \u1ee9ng su\u1ea5t n\u00e9n thay v\u00ec \u1ee9ng su\u1ea5t k\u00e9o trong qu\u00e1 tr\u00ecnh l\u00e0m m\u00e1t, do \u0111\u00f3 t\u1ea1o ra hi\u1ec7u \u1ee9ng ng\u0103n ch\u1eb7n s\u1ef1 h\u00ecnh th\u00e0nh v\u00e0 m\u1edf r\u1ed9ng v\u1ebft n\u1ee9t. Ngo\u00e0i ra, do \u0111\u1ed9 d\u00e0y m\u1ecfng c\u1ee7a l\u1edbp ph\u1ee7 PVD, h\u00ecnh d\u1ea1ng c\u1ee7a l\u01b0\u1ee1i dao kh\u00f4ng b\u1ecb thay \u0111\u1ed5i nhi\u1ec1u, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 b\u1ea3o to\u00e0n ph\u1ea7n l\u1edbn \u0111\u1ed9 s\u1eafc b\u00e9n c\u1ee7a l\u01b0\u1ee1i c\u1eaft v\u00e0 gi\u1ea3m l\u1ef1c c\u1eaft v\u00e0 nhi\u1ec7t c\u1eaft. T\u00f3m l\u1ea1i, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng PVD ph\u00f9 h\u1ee3p h\u01a1n cho vi\u1ec7c phay kh\u00f4ng li\u00ean t\u1ee5c v\u00e0 h\u1ea7u h\u1ebft t\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng c\u1ee5 t\u1ed5ng th\u1ec3.<\/p>\n\n\n\n<p>C\u00f4ng b\u1eb1ng m\u00e0 n\u00f3i, CVD c\u00f3 m\u1ed9t l\u1ee3i th\u1ebf so v\u1edbi c\u00f4ng ngh\u1ec7 PVD th\u00f4ng th\u01b0\u1eddng, kh\u00f3 theo k\u1ecbp PVD, v\u1eadt li\u1ec7u ph\u1ee7 CVD \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t, Al2O3. Al2O3 c\u00f3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc r\u1ea5t t\u1ed1t, c\u1ee9ng v\u00e0 ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 chi ph\u00ed c\u1ef1c th\u1ea5p, nh\u01b0ng kh\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c tr\u00ean PVD th\u00f4ng th\u01b0\u1eddng do qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t. T\u1ea5t nhi\u00ean, do nhi\u1ec1u \u01b0u \u0111i\u1ec3m kh\u00e1c c\u1ee7a PVD v\u00e0 do s\u1ef1 m\u1edf r\u1ed9ng li\u00ean t\u1ee5c c\u1ee7a v\u1eadt li\u1ec7u ph\u1ee7 trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 \u0111\u00e3 d\u1ea7n v\u01b0\u1ee3t tr\u1ed9i h\u01a1n CVD v\u1ec1 nhi\u1ec1u m\u1eb7t h\u01a1n. Th\u1ecb ph\u1ea7n hi\u1ec7n t\u1ea1i c\u1ee7a n\u00f3 trong th\u1ecb tr\u01b0\u1eddng c\u00f4ng c\u1ee5 th\u1ebf gi\u1edbi \u0111\u00e3 d\u1ea7n d\u1ea7n t\u0103ng t\u1eeb 20% l\u00ean 30% h\u01a1n m\u1ed9t th\u1eadp k\u1ef7 tr\u01b0\u1edbc \u0111\u1ebfn h\u01a1n 50% b\u00e2y gi\u1edd.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2020\/05\/TIM\u56fe\u724720190313095148-1.png\" alt=\"\" class=\"wp-image-3364\" title=\"\"><\/figure>\n<\/div><!-- .vgblk-rw-wrapper -->","protected":false},"excerpt":{"rendered":"<p>PVD and CVD are currently very common treatment for surface treatments on tools and molds. CVD is based on chemical vapor deposition, while PVD is based on physical vapor deposition, due to their differences in principle, resulting in their final coating. Layer results are also different, with different emphasis on applications. PVD (physical vapor deposition)&#8230;<\/p>","protected":false},"author":2,"featured_media":19351,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[92],"tags":[],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/03\/1-1.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/3359"}],"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=3359"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/3359\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media\/19351"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media?parent=3359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/categories?post=3359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/tags?post=3359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}