{"id":4629,"date":"2025-10-23T11:50:47","date_gmt":"2025-10-23T03:50:47","guid":{"rendered":"https:\/\/www.oc-epc.com\/?p=4629"},"modified":"2025-10-21T10:14:49","modified_gmt":"2025-10-21T02:14:49","slug":"what-is-casting-definition-process-and-types","status":"publish","type":"post","link":"https:\/\/www.oc-epc.com\/vi\/tin-tuc-blog\/tin-tuc-nganh\/qua-trinh-dinh-nghia-duc-va-cac-loai-la-gi\/","title":{"rendered":"\u0110\u00fac l\u00e0 g\u00ec: \u0110\u1ecbnh ngh\u0129a, Qu\u00e1 tr\u00ecnh v\u00e0 Lo\u1ea1i"},"content":{"rendered":"

Trong s\u1ea3n xu\u1ea5t, \u0111\u00fac l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch l\u00e2u \u0111\u1eddi nh\u1ea5t v\u00e0 ti\u1ec7n l\u1ee3i nh\u1ea5t \u0111\u1ec3 \u0111\u1ecbnh h\u00ecnh kim lo\u1ea1i. \u0110\u00f3 l\u00e0 v\u1ec1 \u0111\u1ed5 v\u1eadt li\u1ec7u n\u00f3ng ch\u1ea3y - th\u01b0\u1eddng l\u00e0 kim lo\u1ea1i - v\u00e0o m\u1ed9t khu\u00f4n. \u1ede \u0111\u00f3, n\u00f3 l\u00e0m m\u00e1t v\u00e0 bi\u1ebfn r\u1eafn, l\u1ea5y h\u00ecnh d\u1ea1ng c\u1ee7a khu\u00f4n. M\u1eb9o n\u00e0y \u0111\u00e3 ph\u00e1t tri\u1ec3n t\u1eeb c\u00e1c c\u00f4ng c\u1ee5 \u0111\u1ed3ng c\u1ed5 \u0111\u1ea1i \u0111\u1ebfn c\u00e1c h\u1ee3p kim \u01b0a th\u00edch ng\u00e0y nay cho m\u00e1y bay v\u00e0 n\u0103ng l\u01b0\u1ee3ng xanh. Khi th\u1ebf gi\u1edbi mu\u1ed1n l\u00e0m nhanh h\u01a1n, r\u1ebb h\u01a1n, \u0111\u00fac c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m l\u00ean \u0111\u1ebfn 30% so v\u1edbi vi\u1ec7c c\u1eaft t\u1eeb kim lo\u1ea1i r\u1eafn.<\/p>\n

 <\/p>\n

\"M\u1ea5t<\/div>\n

\u0110\u1ecbnh ngh\u0129a \u0111\u00fac: T\u1ed5ng quan c\u01a1 b\u1ea3n<\/strong><\/h2>\n

\u0110\u00fac ch\u00ednh x\u00e1c l\u00e0 g\u00ec trong s\u1ea3n xu\u1ea5t?<\/strong><\/h3>\n

\u0110\u00fac l\u00e0 m\u1ed9t c\u00e1ch \u0111\u1ec3 l\u00e0m m\u1ecdi th\u1ee9 b\u1eb1ng c\u00e1ch \u0111\u1ed5 v\u1eadt li\u1ec7u l\u1ecfng, th\u01b0\u1eddng l\u00e0 kim lo\u1ea1i nh\u01b0 nh\u00f4m, s\u1eaft ho\u1eb7c th\u00e9p, v\u00e0o m\u1ed9t khu\u00f4n r\u1ed7ng. Khi l\u00e0m m\u00e1t, v\u1eadt li\u1ec7u c\u1ee9ng th\u00e0nh h\u00ecnh d\u1ea1ng ch\u00ednh x\u00e1c c\u1ee7a khu\u00f4n. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y l\u00e0 tuy\u1ec7t v\u1eddi \u0111\u1ec3 l\u00e0m c\u00e1c b\u1ed9 ph\u1eadn c\u00f3 h\u00ecnh d\u1ea1ng kh\u00f3 kh\u0103n m\u00e0 kh\u00f3 l\u00e0m v\u1edbi c\u00e1c c\u00e1ch kh\u00e1c, nh\u01b0 r\u00e8n ho\u1eb7c h\u00e0n.<\/p>\n

\u0110\u00fac kh\u00f4ng ch\u1ec9 l\u00e0 \u0111\u1ed5 kim lo\u1ea1i. N\u00f3 li\u00ean quan \u0111\u1ebfn khoa h\u1ecdc v\u1ec1 c\u00e1ch ch\u1ea5t l\u1ecfng ch\u1ea3y, nhi\u1ec7t di chuy\u1ec3n v\u00e0 v\u1eadt li\u1ec7u c\u1ee9ng. C\u00e1ch \u0111\u00e2y l\u00e2u, h\u01a1n 5.000 n\u0103m tr\u01b0\u1edbc, ng\u01b0\u1eddi Mesopotamia \u0111\u00e3 s\u1eed d\u1ee5ng n\u00f3 \u0111\u1ec3 l\u00e0m c\u00f4ng c\u1ee5 \u0111\u1ed3ng. B\u00e2y gi\u1edd, n\u00f3 l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 l\u00e0m nh\u1eefng th\u1ee9 nh\u01b0 tr\u01b0\u1eddng h\u1ee3p \u0111i\u1ec7n tho\u1ea1i v\u00e0 l\u01b0\u1ee1i tua bin. Nh\u1eefng chi\u1ebfn th\u1eafng l\u1edbn c\u1ee7a n\u00f3 l\u00e0 thi\u1ebft k\u1ebf linh ho\u1ea1t, s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u m\u1ed9t c\u00e1ch kh\u00f4n ngoan v\u00e0 l\u00e0m cho r\u1ea5t nhi\u1ec1u b\u1ed9 ph\u1eadn nhanh ch\u00f3ng.<\/p>\n

T\u1ea1i sao \u0111\u00fac quan tr\u1ecdng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i<\/strong><\/h3>\n

Ng\u00e0y nay, v\u1edbi vi\u1ec7c x\u00e2y d\u1ef1ng nhanh ch\u00f3ng v\u00e0 s\u1ea3n xu\u1ea5t k\u1ecbp th\u1eddi, \u0111\u00fac l\u00e0 si\u00eau h\u1eefu \u00edch. N\u00f3 ho\u1ea1t \u0111\u1ed9ng v\u1edbi nhi\u1ec1u kim lo\u1ea1i, t\u1eeb nh\u1eefng kim lo\u1ea1i d\u1ef1a tr\u00ean s\u1eaft \u0111\u1ebfn nh\u1eefng kim lo\u1ea1i kh\u00e1c nh\u01b0 magi\u00ea. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p b\u1ea1n ch\u1ecdn kim lo\u1ea1i cho s\u1ee9c m\u1ea1nh, ch\u1ed1ng g\u1ec9 ho\u1eb7c x\u1eed l\u00fd nhi\u1ec7t. \u0110\u1ed1i v\u1edbi c\u00e1c c\u00f4ng ty, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 s\u1ea3n ph\u1ea9m ra nhanh h\u01a1n v\u00e0 chi ti\u00eau \u00edt h\u01a1n cho c\u00e1c c\u00f4ng c\u1ee5 so v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c.<\/p>\n

Qu\u00e1 tr\u00ecnh \u0111\u00fac: Ph\u00e2n t\u00edch t\u1eebng b\u01b0\u1edbc<\/strong><\/h2>\n

\u0110\u00fac theo m\u1ed9t b\u1ed9 b\u01b0\u1edbc r\u00f5 r\u00e0ng \u0111\u1ec3 gi\u1eef ch\u1ea5t l\u01b0\u1ee3ng cao. M\u1ed7i lo\u1ea1i \u0111\u00fac \u0111i\u1ec1u ch\u1ec9nh c\u00e1c b\u01b0\u1edbc n\u00e0y, nh\u01b0ng d\u00f2ng ch\u1ea3y ch\u00ednh v\u1eabn gi\u1ed1ng nhau. Bi\u1ebft nh\u1eefng \u0111i\u1ec1u n\u00e0y gi\u00fap c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u1eafc ph\u1ee5c c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 l\u1ed7 ho\u1eb7c co l\u1ea1i, c\u00f3 th\u1ec3 l\u00e0m l\u1ed9n l\u1ed9n s\u1ea3n xu\u1ea5t.<\/p>\n

B\u01b0\u1edbc 1: T\u1ea1o m\u00f4 h\u00ecnh<\/strong><\/h3>\n

\u0110\u1ea7u ti\u00ean, b\u1ea1n t\u1ea1o ra m\u1ed9t m\u1eabu. \u0110\u00e2y l\u00e0 m\u1ed9t b\u1ea3n sao c\u1ee7a ph\u1ea7n cu\u1ed1i c\u00f9ng, th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng g\u1ed7, nh\u1ef1a ho\u1eb7c kim lo\u1ea1i. N\u00f3 \u0111\u1ecbnh h\u00ecnh kh\u00f4ng gian tr\u1ed1ng r\u1ed7ng c\u1ee7a khu\u00f4n. B\u1ea1n th\u00eam ch\u1ed7 cho vi\u1ec7c co l\u1ea1i (kho\u1ea3ng 1-2% cho kim lo\u1ea1i) v\u00e0 g\u00f3c nghi\u00eang (1-3 \u0111\u1ed9) \u0111\u1ec3 n\u00f3 b\u1eadt ra d\u1ec5 d\u00e0ng. \u0110\u1ed1i v\u1edbi c\u00e1c l\u00f4 l\u1edbn, c\u00e1c m\u1eabu \u0111\u01b0\u1ee3c c\u1eaft b\u1eb1ng m\u00e1y CNC cho \u0111\u1ed9 ch\u00ednh x\u00e1c si\u00eau cao.<\/p>\n

\u0110\u1ed1i v\u1edbi c\u00e1c h\u00ecnh d\u1ea1ng kh\u00f3 kh\u0103n, c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 c\u1eb7p CAD v\u1edbi in 3D \u0111\u1ec3 t\u1ea1o ra c\u00e1c m\u1eabu nhanh ch\u00f3ng. \u0110i\u1ec1u n\u00e0y c\u1eaft gi\u1ea3m th\u1eddi gian ch\u1edd \u0111\u1ee3i t\u1eeb tu\u1ea7n \u0111\u1ebfn ng\u00e0y. \u0110\u00f3 l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 l\u1edbn \u0111\u1ed1i v\u1edbi \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t, n\u01a1i c\u00e1c m\u1eabu b\u1ecdt b\u1ecb ch\u00e1y khi kim lo\u1ea1i \u0111\u01b0\u1ee3c \u0111\u1ed5, b\u1ecf qua vi\u1ec7c lo\u1ea1i b\u1ecf khu\u00f4n th\u00f4ng th\u01b0\u1eddng.<\/p>\n

B\u01b0\u1edbc 2: Chu\u1ea9n b\u1ecb khu\u00f4n<\/strong><\/h3>\n

Ti\u1ebfp theo, m\u00f4 h\u00ecnh h\u00ecnh th\u00e0nh khu\u00f4n. Khu\u00f4n c\u00f3 th\u1ec3 l\u00e0 c\u00e1t, g\u1ed1m ho\u1eb7c kim lo\u1ea1i. C\u00e1t \u0111\u00fac l\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u nh\u1ea5t. B\u1ea1n \u0111\u00f3ng g\u00f3i c\u00e1t \u01b0\u1edbt xung quanh m\u00f4 h\u00ecnh trong m\u1ed9t h\u1ed9p g\u1ecdi l\u00e0 m\u1ed9t b\u00ecnh. Sau \u0111\u00f3, b\u1ea1n k\u00e9o m\u1eabu ra, \u0111\u1ec3 l\u1ea1i m\u1ed9t kh\u00f4ng gian tr\u1ed1ng. C\u00e1c l\u1edbp ph\u1ee7 \u0111\u1eb7c bi\u1ec7t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u00eam \u0111\u1ec3 l\u00e0m cho b\u1ec1 m\u1eb7t m\u1ecbn h\u01a1n v\u00e0 ng\u0103n ch\u1eb7n kim lo\u1ea1i d\u00ednh d\u00e1n.<\/p>\n

S\u1ea3n xu\u1ea5t khu\u00f4n c\u1ea7n ch\u0103m s\u00f3c. N\u1ebfu c\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i \u0111\u00fang c\u00e1ch, b\u1ea1n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c nh\u1eefng khi\u1ebfm khuy\u1ebft nh\u01b0 l\u1ed7 kh\u00f4ng kh\u00ed. M\u00e1y t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t b\u00e1nh r\u0103ng \u0111\u1eb7c bi\u1ec7t l\u00e0m cho b\u01b0\u1edbc n\u00e0y \u1ed5n \u0111\u1ecbnh cho c\u00e1c c\u00f4ng vi\u1ec7c kinh doanh l\u1edbn.<\/p>\n

B\u01b0\u1edbc 3: N\u00f3ng ch\u1ea3y v\u00e0 \u0111\u1ed5 kim lo\u1ea1i<\/strong><\/h3>\n

Kim lo\u1ea1i \u0111\u01b0\u1ee3c tan ch\u1ea3y trong l\u00f2 - l\u00f2 c\u1ea3m \u1ee9ng \u0111\u1ec3 ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c ho\u1eb7c v\u00f2m cho s\u1eaft - \u1edf h\u01a1n 1.200 \u00b0 C. H\u1ee3p kim \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch \u0111\u1ec3 lo\u1ea1i b\u1ecf r\u00e1c th\u1ea3i. Sau \u0111\u00f3, kim lo\u1ea1i n\u00f3ng \u0111\u01b0\u1ee3c \u0111\u1ed5 v\u00e0o khu\u00f4n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng tr\u1ecdng l\u1ef1c, \u00e1p su\u1ea5t ho\u1eb7c ch\u00e2n kh\u00f4ng. B\u1ea1n \u0111\u1ed5 nhanh nh\u01b0 th\u1ebf n\u00e0o v\u00e0 nhi\u1ec7t \u0111\u1ed9 quan tr\u1ecdng r\u1ea5t nhi\u1ec1u. Qu\u00e1 ch\u1eadm, v\u00e0 kim lo\u1ea1i l\u00e0m m\u00e1t qu\u00e1 s\u1edbm, \u0111\u1ec3 l\u1ea1i kho\u1ea3ng tr\u1ed1ng.<\/p>\n

Trong c\u00e1c lo\u1ea1i ch\u00e2n kh\u00f4ng nh\u01b0 \u0111\u00fac EPC, h\u00fat gi\u00fap ph\u00e2n t\u00e1n kim lo\u1ea1i m\u1ed9t c\u00e1ch \u0111\u1ed3ng \u0111\u1ec1u. \u0110i\u1ec1u n\u00e0y r\u1ea5t t\u1ed1t cho c\u00e1c b\u1ed9 ph\u1eadn m\u1ecfng. C\u00e1c thi\u1ebft b\u1ecb an to\u00e0n nh\u01b0 m\u1eb7t n\u1ea1 v\u00e0 l\u1ed7 th\u00f4ng kh\u00ed l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft trong c\u00e1c nh\u00e0 m\u00e1y.<\/p>\n

B\u01b0\u1edbc 4: C\u1ee9ng r\u1eafn v\u00e0 l\u00e0m m\u00e1t<\/strong><\/h3>\n

Khi kim lo\u1ea1i n\u00f3ng l\u00e0m m\u00e1t, n\u00f3 c\u1ee9ng t\u1eeb c\u1ea1nh khu\u00f4n v\u00e0o b\u00ean trong. \u0110i\u1ec1u n\u00e0y t\u1ea1o th\u00e0nh c\u00e1c tinh th\u1ec3 nh\u1ecf \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c m\u1ea1nh. L\u00e0m m\u00e1t nhanh l\u00e0m cho tinh th\u1ec3 nh\u1ecf h\u01a1n v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn m\u1ea1nh h\u01a1n. Sau \u0111\u00f3, \u0111\u00fac \u0111\u01b0\u1ee3c l\u1eafc ra kh\u1ecfi khu\u00f4n, th\u01b0\u1eddng v\u1edbi m\u1ed9t m\u00e1y rung cho t\u1ed1c \u0111\u1ed9.<\/p>\n

B\u01b0\u1edbc n\u00e0y cho th\u1ea5y c\u00e1c th\u1ee7 thu\u1eadt nhi\u1ec7t c\u1ee7a \u0111\u00fac. L\u00e0m m\u00e1t kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u c\u00f3 th\u1ec3 xo\u1eafn c\u00e1c b\u1ed9 ph\u1eadn. \u0110i\u1ec1u khi\u1ec3n l\u00e0m m\u00e1t, nh\u01b0 phun n\u01b0\u1edbc, gi\u00fap tr\u00e1nh \u0111i\u1ec1u n\u00e0y.<\/p>\n

B\u01b0\u1edbc 5: Ho\u00e0n th\u00e0nh v\u00e0 ki\u1ec3m tra<\/strong><\/h3>\n

Sau khi l\u00e0m m\u00e1t, \u0111\u00fac \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch. B\u1ea1n c\u1eaft c\u00e1c bit b\u1ed5 sung nh\u01b0 c\u1ed5ng ho\u1eb7c flash. C\u00e1c th\u1eed nghi\u1ec7m nh\u01b0 tia X ho\u1eb7c s\u00f3ng \u00e2m thanh t\u00ecm th\u1ea5y nh\u1eefng l\u1ed7i \u1ea9n. \u0110i\u1ec1u tr\u1ecb nh\u01b0 phun ho\u1eb7c gia c\u00f4ng l\u00e0m cho c\u00e1c b\u1ed9 ph\u1eadn si\u00eau ch\u00ednh x\u00e1c, xu\u1ed1ng \u00b1 0,1mm.<\/p>\n

Ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng \u1edf \u0111\u00e2y tu\u00e2n theo c\u00e1c quy t\u1eafc nh\u01b0 ISO 9001. \u0110\u00e2y l\u00e0 ch\u00eca kh\u00f3a cho chu\u1ed7i cung \u1ee9ng kinh doanh.<\/p>\n

C\u00e1c lo\u1ea1i \u0111\u00fac: Kh\u00e1m ph\u00e1 c\u00e1c t\u00f9y ch\u1ecdn<\/strong><\/h2>\n

C\u00f3 h\u01a1n m\u1ed9t ch\u1ee5c lo\u1ea1i \u0111\u00fac. \u0110i\u1ec1u t\u1ed1t nh\u1ea5t ph\u1ee5 thu\u1ed9c v\u00e0o h\u00ecnh d\u1ea1ng, s\u1ed1 l\u01b0\u1ee3ng v\u00e0 v\u1eadt li\u1ec7u c\u1ee7a b\u1ed9 ph\u1eadn. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t c\u00e1i nh\u00ecn v\u00e0o nh\u1eefng ng\u01b0\u1eddi h\u00e0ng \u0111\u1ea7u, t\u1ed1t cho c\u00e1c t\u00ecm ki\u1ebfm nh\u01b0 \"\u0111\u00fac c\u00e1t vs \u0111\u00fac ch\u1ebft.\"<\/p>\n

\u0110\u00fac c\u00e1t: Ng\u1ef1a l\u00e0m vi\u1ec7c \u0111a n\u0103ng<\/strong><\/h3>\n

\u0110\u00fac c\u00e1t s\u1eed d\u1ee5ng c\u00e1t silica v\u1edbi ch\u1ea5t k\u1ebft d\u00ednh \u0111\u1ec3 l\u00e0m khu\u00f4n. N\u00f3 r\u1ebb cho c\u00e1c l\u00f4 nh\u1ecf \u0111\u1ebfn trung b\u00ecnh v\u00e0 c\u00f3 th\u1ec3 x\u1eed l\u00fd c\u00e1c b\u1ed9 ph\u1eadn l\u1edbn l\u00ean \u0111\u1ebfn 100kg. Nh\u1eefng th\u1ee9 t\u1ed1t: chi ph\u00ed th\u1ea5p, h\u00ecnh d\u1ea1ng linh ho\u1ea1t. Nh\u1eefng th\u1ee9 x\u1ea5u: b\u1ec1 m\u1eb7t th\u00f4 c\u1ea7n th\u00eam c\u00f4ng vi\u1ec7c, \u00edt ch\u00ednh x\u00e1c h\u01a1n (\u00b1 2mm). N\u00f3 tuy\u1ec7t v\u1eddi cho c\u00e1c kh\u1ed1i \u0111\u1ed9ng c\u01a1 ho\u1eb7c c\u00e1c b\u1ed9 ph\u1eadn th\u1eed nghi\u1ec7m. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong 80% \u0111\u00fac tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/p>\n

\u0110\u00fac: \u0110\u1ed9 ch\u00ednh x\u00e1c kh\u1ed1i l\u01b0\u1ee3ng cao<\/strong><\/h3>\n

Kim lo\u1ea1i n\u00f3ng \u0111\u01b0\u1ee3c \u0111\u1ea9y v\u00e0o khu\u00f4n th\u00e9p d\u01b0\u1edbi \u00e1p su\u1ea5t cao, l\u00ean \u0111\u1ebfn 200 MPa. N\u00f3 t\u1ed1t nh\u1ea5t cho c\u00e1c kim lo\u1ea1i nh\u01b0 k\u1ebdm ho\u1eb7c nh\u00f4m v\u00e0 ho\u1ea1t \u0111\u1ed9ng cho c\u00e1c b\u1ee9c t\u01b0\u1eddng m\u1ecfng v\u00e0 h\u00e0ng t\u1ea5n b\u1ed9 ph\u1eadn (h\u00e0ng ng\u00e0n m\u1ed7i gi\u1edd). T\u1ed1t: si\u00eau ch\u00ednh x\u00e1c (\u00b1 0,05mm), b\u1ec1 m\u1eb7t m\u1ecbn. X\u1ea5u: khu\u00f4n \u0111\u1eaft ti\u1ec1n ($ 10,000). N\u00f3 ph\u1ed5 bi\u1ebfn cho c\u00e1c tr\u01b0\u1eddng h\u1ee3p \u0111i\u1ec7n tho\u1ea1i ho\u1eb7c gadget.<\/p>\n

\u0110\u00fac \u0111\u1ea7u t\u01b0: \u0110\u1ed1i v\u1edbi c\u00e1c chi ti\u1ebft ph\u1ee9c t\u1ea1p<\/strong><\/h3>\n

\u0110\u01b0\u1ee3c g\u1ecdi l\u00e0 lost-wax, \u0111i\u1ec1u n\u00e0y s\u1eed d\u1ee5ng c\u00e1c m\u1eabu s\u00e1p \u0111\u01b0\u1ee3c ph\u1ee7 b\u1eb1ng g\u1ed1m. S\u00e1p tan ch\u1ea3y, sau \u0111\u00f3 kim lo\u1ea1i \u0111\u01b0\u1ee3c \u0111\u1ed5 v\u00e0o. N\u00f3 \u0111\u1ea1t dung sai ch\u1eb7t ch\u1ebd \u00b1 0,125mm v\u00e0 t\u1ea1o ra c\u00e1c h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p m\u00e0 kh\u00f4ng c\u1ea7n l\u00f5i b\u1ed5 sung. T\u1ed1t: chi ti\u1ebft t\u1ed1t, nhi\u1ec1u l\u1ef1a ch\u1ecdn h\u1ee3p kim. X\u1ea5u: m\u1ea5t r\u1ea5t nhi\u1ec1u c\u00f4ng vi\u1ec7c, t\u1ed1n k\u00e9m cho c\u00e1c chuy\u1ebfn ch\u1ea1y nh\u1ecf. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho l\u01b0\u1ee1i turbin m\u00e1y bay.<\/p>\n

\u0110\u00fac khu\u00f4n v\u0129nh vi\u1ec5n: Hi\u1ec7u qu\u1ea3 t\u00e1i s\u1eed d\u1ee5ng<\/strong><\/h3>\n

Kim lo\u1ea1i n\u00f3ng \u0111i v\u00e0o khu\u00f4n kim lo\u1ea1i, th\u01b0\u1eddng l\u00e0 s\u1eaft ho\u1eb7c th\u00e9p. N\u00f3 l\u00e0m m\u00e1t v\u00e0 pops ra. N\u00f3 t\u1ed1t h\u01a1n \u0111\u00fac c\u00e1t cho c\u00e1c l\u00f4 trung b\u00ecnh. T\u1ed1t: chu k\u1ef3 nhanh h\u01a1n, c\u00e1c b\u1ed9 ph\u1eadn m\u1ea1nh m\u1ebd h\u01a1n. X\u1ea5u: ch\u1ec9 cho c\u00e1c h\u00ecnh d\u1ea1ng \u0111\u01a1n gi\u1ea3n h\u01a1n. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng cho piston xe h\u01a1i.<\/p>\n

\u0110\u00fac b\u1ecdt b\u1ecb m\u1ea5t (EPC): Ph\u01b0\u01a1ng ph\u00e1p d\u1ef1a tr\u00ean b\u1ecdt s\u00e1ng t\u1ea1o<\/strong><\/h3>\n

M\u1ea5t b\u1ecdt \u0111\u00fac<\/strong><\/a> s\u1eed d\u1ee5ng c\u00e1c m\u1eabu b\u1ecdt polystyrene ch\u00f4n trong c\u00e1t. B\u1ecdt b\u1ecb ch\u00e1y khi kim lo\u1ea1i \u0111\u00e2m v\u00e0o n\u00f3, kh\u00f4ng \u0111\u1ec3 l\u1ea1i d\u1ea5u v\u1ebft. \u0110\u00f3 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a \u0111\u00fac m\u1eabu bay h\u01a1i (EPC). N\u00f3 kh\u00f4ng c\u00f3 \u0111\u01b0\u1eddng chia v\u00e0 t\u1ea1o ra c\u00e1c h\u00ecnh d\u1ea1ng b\u00ean trong kh\u00f3 kh\u0103n. T\u1ed1t: c\u1eaft gi\u1ea3m gia c\u00f4ng l\u00ean \u0111\u1ebfn 50%, t\u00e1i s\u1eed d\u1ee5ng c\u00e1t \u0111\u1ec3 th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng. X\u1ea5u: b\u1ecdt r\u1ea5t tinh t\u1ebf \u0111\u1ec3 x\u1eed l\u00fd. N\u00f3 \u0111ang ph\u00e1t tri\u1ec3n cho van v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn \u0111\u1ed9ng c\u01a1. M\u00e1y t\u1eeb OC Technology<\/strong><\/a> gi\u00fap t\u1ef1 \u0111\u1ed9ng h\u00f3a n\u00f3.<\/p>\n

 <\/p>\n

\"m\u00e1y<\/div>\n

C\u00e1c lo\u1ea1i \u0111\u00e1ng ch\u00fa \u00fd kh\u00e1c<\/strong><\/h3>\n

\u0110\u00fac ly t\u00e2m xoay khu\u00f4n cho \u1ed1ng. Kh\u00fac nh\u1ef1a l\u00e0 t\u1ed1t cho c\u00e1c b\u1ed9 ph\u1eadn th\u1eed nghi\u1ec7m. \u0110\u00fac li\u00ean t\u1ee5c l\u00e0m cho t\u1ea5m cho nh\u00e0 m\u00e1y. M\u1ed7i lo\u1ea1i ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c c\u00f4ng vi\u1ec7c c\u1ee5 th\u1ec3, t\u1eeb trang s\u1ee9c \u0111\u1ebfn m\u00e1y m\u00f3c l\u1edbn.<\/p>\n

L\u1ee3i th\u1ebf v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a \u0111\u00fac<\/strong><\/h2>\n

L\u1ee3i th\u1ebf ch\u00ednh<\/strong><\/h3>\n