{"id":4750,"date":"2025-12-26T11:50:39","date_gmt":"2025-12-26T03:50:39","guid":{"rendered":"https:\/\/www.oc-epc.com\/?p=4750"},"modified":"2025-12-22T14:50:25","modified_gmt":"2025-12-22T06:50:25","slug":"lost-foam-casting-vs-sand-casting","status":"publish","type":"post","link":"https:\/\/www.oc-epc.com\/vi\/tin-tuc-blog\/tin-tuc-nganh\/duc-bot-bi-mat-vs-duc-cat\/","title":{"rendered":"M\u1ea5t b\u1ecdt \u0111\u00fac Vs c\u00e1t \u0111\u00fac"},"content":{"rendered":"

Gi\u1edbi thi\u1ec7u<\/strong><\/h2>\n

Trong th\u1ebf gi\u1edbi \u0111\u00fac kim lo\u1ea1i, \u0110\u00fac b\u1ecdt b\u1ecb m\u1ea5t (EPC)<\/strong><\/a> v\u00e0 \u0111\u00fac c\u00e1t l\u00e0 hai ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn. Blog n\u00e0y xem x\u00e9t nh\u1eefng kh\u00e1c bi\u1ec7t ch\u00ednh: Lost Foam Casting Vs Sand Casting, v\u00e0 gi\u1ea3i th\u00edch t\u1ea1i sao LFC n\u1ed5i b\u1eadt l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t h\u01a1n cho ng\u00e0y h\u00f4m nay’ nhu c\u1ea7u s. Trong khi \u0111\u00fac c\u00e1t \u0111\u00e3 l\u00e0 l\u1ef1a ch\u1ecdn th\u00f4ng th\u01b0\u1eddng trong nhi\u1ec1u n\u0103m, \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t \u0111ang nhanh ch\u00f3ng tr\u1edf th\u00e0nh c\u00e1ch \u01b0a th\u00edch b\u1edfi v\u00ec n\u00f3 cung c\u1ea5p \u0111\u1ed9 ch\u00ednh x\u00e1c t\u1ed1t h\u01a1n, chi ph\u00ed th\u1ea5p h\u01a1n v\u00e0 l\u1ee3i \u00edch r\u00f5 r\u00e0ng cho m\u00f4i tr\u01b0\u1eddng. V\u1edbi nh\u1eefng c\u1ea3i ti\u1ebfn trong c\u00f4ng c\u1ee5 \u0111\u00fac, nhi\u1ec1u c\u00f4ng ty hi\u1ec7n \u0111ang chuy\u1ec3n sang c\u00e1c nh\u00e0 \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t \u0111\u1ec3 t\u0103ng hi\u1ec7u su\u1ea5t v\u00e0 c\u1eaft gi\u1ea3m chi ph\u00ed h\u00e0ng ng\u00e0y.<\/p>\n

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

M\u1ea5t b\u1ecdt \u0111\u00fac Vs c\u00e1t \u0111\u00fac<\/strong><\/h2>\n

\u0110\u00fac c\u00e1t: C\u00e1ch ti\u1ebfp c\u1eadn truy\u1ec1n th\u1ed1ng<\/strong><\/h3>\n

\u0110\u00fac c\u00e1t c\u00f3 ngh\u0129a l\u00e0 t\u1ea1o ra m\u1ed9t kh\u00f4ng gian khu\u00f4n trong c\u00e1t, sau \u0111\u00f3 \u0111\u1ed5 kim lo\u1ea1i n\u00f3ng v\u00e0o n\u00f3. Sau khi kim lo\u1ea1i c\u1ee9ng, c\u00f4ng nh\u00e2n l\u1ea5y c\u00e1t \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c ph\u1ea7n ho\u00e0n th\u00e0nh. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y v\u1eabn \u0111\u01a1n gi\u1ea3n v\u00e0 ph\u1ed5 bi\u1ebfn, nh\u01b0ng n\u00f3 ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c, ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t v\u00e0 x\u1eed l\u00fd c\u00e1c h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p.<\/p>\n

Lost Foam Casting: S\u1ef1 \u0111\u1ed5i m\u1edbi hi\u1ec7n \u0111\u1ea1i<\/strong><\/h3>\n

Trong Lost Foam Casting, c\u00f4ng nh\u00e2n t\u1ea1o ra m\u1ed9t m\u1eabu b\u1ecdt tr\u01b0\u1edbc, che n\u00f3 v\u1edbi m\u1ed9t l\u1edbp ch\u1ed1ng nhi\u1ec7t \u0111\u1eb7c bi\u1ec7t v\u00e0 \u0111\u1eb7t n\u00f3 trong c\u00e1t l\u1ecfng l\u1ecfng. Khi kim lo\u1ea1i n\u00f3ng ch\u1ea3y v\u00e0o, b\u1ecdt nhanh ch\u00f3ng bi\u1ebfn m\u1ea5t d\u01b0\u1edbi d\u1ea1ng h\u01a1i n\u01b0\u1edbc, v\u00e0 kim lo\u1ea1i l\u1ea5y v\u1ecb tr\u00ed c\u1ee7a n\u00f3 ch\u00ednh x\u00e1c. B\u1eb1ng c\u00e1ch n\u00e0y lo\u1ea1i b\u1ecf s\u1ef1 c\u1ea7n thi\u1ebft cho l\u00f5i, c\u00e1c \u0111\u01b0\u1eddng chia v\u00e0 r\u1ea5t nhi\u1ec1u gia c\u00f4ng b\u1ed5 sung, v\u00ec v\u1eady n\u00f3 h\u00f3a ra hi\u1ec7u qu\u1ea3 h\u01a1n v\u00e0 r\u1ebb h\u01a1n t\u1ed5ng th\u1ec3.<\/p>\n

\u0110\u00fac b\u1ecdt b\u1ecb m\u1ea5t Vs \u0111\u00fac c\u00e1t: So s\u00e1nh d\u1eef li\u1ec7u<\/strong><\/h2>\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n\n
T\u00ednh n\u0103ng<\/strong><\/th>\n\u0110\u00fac b\u1ecdt b\u1ecb m\u1ea5t (LFC)<\/strong><\/th>\n\u0110\u00fac c\u00e1t<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Ph\u1ee9c t\u1ea1p thi\u1ebft k\u1ebf<\/td>\nCho ph\u00e9p thi\u1ebft k\u1ebf ph\u1ee9c t\u1ea1p, g\u1ea7n h\u00ecnh d\u1ea1ng l\u01b0\u1edbi m\u00e0 kh\u00f4ng c\u00f3 l\u00f5i<\/td>\nGi\u1edbi h\u1ea1n b\u1edfi l\u00f5i c\u00e1t, l\u00e0m cho thi\u1ebft k\u1ebf ph\u1ee9c t\u1ea1p kh\u00f3 kh\u0103n<\/td>\n<\/tr>\n
\u0110\u1ed9 ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc<\/td>\n\u00b1 0,005 mm \/ mm, gi\u1ea3m n\u1ed7 l\u1ef1c gia c\u00f4ng<\/td>\n\u0110\u1ed9 ch\u00ednh x\u00e1c th\u1ea5p h\u01a1n, th\u01b0\u1eddng \u0111\u00f2i h\u1ecfi gia c\u00f4ng b\u1ed5 sung<\/td>\n<\/tr>\n
B\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n<\/td>\nM\u1ecbn (2,5-25 \u00b5m) v\u1edbi k\u1ebft th\u00fac t\u1ed1i thi\u1ec3u<\/td>\nB\u1ec1 m\u1eb7t th\u00f4 h\u01a1n \u0111\u00f2i h\u1ecfi post-processing r\u1ed9ng r\u00e3i<\/td>\n<\/tr>\n
Chi ph\u00ed s\u1ea3n xu\u1ea5t<\/td>\n20-50% th\u1ea5p h\u01a1n do gi\u1ea3m ch\u1ea5t th\u1ea3i v\u1eadt li\u1ec7u<\/td>\nCao h\u01a1n do c\u00e1c y\u00eau c\u1ea7u v\u1eadt li\u1ec7u v\u00e0 gia c\u00f4ng nhi\u1ec1u h\u01a1n<\/td>\n<\/tr>\n
Hi\u1ec7u qu\u1ea3 v\u1eadt li\u1ec7u<\/td>\nKh\u00f4ng c\u00f3 risers ho\u1eb7c tay \u00e1o ngo\u1ea1i nhi\u1ec7t, gi\u1ea3m ti\u00eau th\u1ee5 kim lo\u1ea1i<\/td>\nC\u1ea7n nhi\u1ec1u kim lo\u1ea1i h\u01a1n, t\u0103ng chi ph\u00ed<\/td>\n<\/tr>\n
Th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng<\/td>\nKh\u00f4ng c\u00f3 ch\u1ea5t li\u00ean k\u1ebft h\u00f3a h\u1ecdc ho\u1eb7c l\u00e3ng ph\u00ed c\u00e1t, l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t qu\u00e1 tr\u00ecnh xanh<\/td>\nT\u1ea1o ra b\u1ee5i, \u0111\u00f2i h\u1ecfi ch\u1ea5t li\u00ean k\u1ebft h\u00f3a h\u1ecdc<\/td>\n<\/tr>\n
Ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng<\/td>\nC\u1ea7n \u00edt n\u0103ng l\u01b0\u1ee3ng h\u01a1n 27% so v\u1edbi \u0111\u00fac c\u00e1t<\/td>\nTi\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng cao h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

T\u1ea1i sao Lost Foam Casting cao h\u01a1n \u0111\u00fac c\u00e1t<\/strong><\/h2>\n

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\"B\u00e1n<\/div>\n

1. T\u1ef1 do thi\u1ebft k\u1ebf t\u0103ng c\u01b0\u1eddng<\/strong><\/h3>\n

Lost Foam Casting cung c\u1ea5p nhi\u1ec1u ch\u1ed7 cho c\u00e1c h\u00ecnh d\u1ea1ng s\u00e1ng t\u1ea1o h\u01a1n. N\u00f3 cho ph\u00e9p c\u00f4ng nh\u00e2n tham gia c\u00e1c b\u1ed9 ph\u1eadn ph\u1ee9c t\u1ea1p m\u00e0 kh\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng l\u00f5i c\u00e1t. K\u1ebft qu\u1ea3 l\u00e0, m\u1ed9t s\u1ed1 m\u1ea3nh c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh m\u1ed9t \u0111\u01a1n v\u1ecb m\u1ea1nh m\u1ebd. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m \u0111i\u1ec3m y\u1ebfu v\u00e0 l\u00e0m cho c\u00e1c v\u1eadt ph\u1ea9m k\u00e9o d\u00e0i l\u00e2u h\u01a1n. C\u00e1c l\u0129nh v\u1ef1c nh\u01b0 \u00f4 t\u00f4, n\u00f4ng nghi\u1ec7p v\u00e0 m\u00e1y m\u00f3c n\u1eb7ng nh\u1eadn \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u t\u1eeb s\u1ef1 l\u1ef1a ch\u1ecdn n\u00e0y. H\u1ecd c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c b\u1ed9 ph\u1eadn chi ti\u1ebft nh\u01b0 kh\u1ed1i \u0111\u1ed9ng c\u01a1, \u0111\u1ea7u xi lanh, v\u1ecf b\u01a1m v\u00e0 th\u00e2n van t\u1ea5t c\u1ea3 trong m\u1ed9t b\u01b0\u1edbc duy nh\u1ea5t.<\/p>\n

2. Ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 hi\u1ec7u qu\u1ea3 v\u1eadt li\u1ec7u<\/strong><\/h3>\n

V\u00ec n\u00f3 b\u1ecf qua l\u00f5i, ch\u1ea5t k\u1ebft d\u00ednh v\u00e0 c\u00f4ng vi\u1ec7c ho\u00e0n thi\u1ec7n n\u1eb7ng n\u1ec1, Lost Foam Casting c\u1eaft gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t l\u00ean \u0111\u1ebfn 35% so v\u1edbi \u0111\u00fac c\u00e1t. H\u01a1n n\u1eefa, g\u1ea7n 98% c\u00e1t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u1ea1i. \u0110i\u1ec1u n\u00e0y l\u00e0m cho to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh r\u1ea5t b\u1ec1n v\u1eefng. H\u00ecnh d\u1ea1ng g\u1ea7n cu\u1ed1i c\u00f9ng c\u00f3 ngh\u0129a l\u00e0 \u00edt ph\u1ebf li\u1ec7u h\u01a1n v\u00e0 \u00edt b\u01b0\u1edbc theo d\u00f5i h\u01a1n. Do \u0111\u00f3, n\u00f3 mang l\u1ea1i ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 ngu\u1ed3n cung c\u1ea5p l\u1edbn, \u0111\u1eb7c bi\u1ec7t l\u00e0 cho c\u00e1c chuy\u1ebfn ch\u1ea1y l\u1edbn.<\/p>\n

3. B\u1ec1 m\u1eb7t v\u01b0\u1ee3t tr\u1ed9i & amp; \u0110\u1ed9 ch\u00ednh x\u00e1c<\/strong><\/h3>\n

Sand Casting th\u01b0\u1eddng c\u1ea7n th\u00eam c\u00f4ng vi\u1ec7c \u0111\u1ec3 l\u00e0m m\u1ecbn m\u1ecdi th\u1ee9. Ng\u01b0\u1ee3c l\u1ea1i, Lost Foam Casting cung c\u1ea5p m\u1ed9t k\u1ebft th\u00fac s\u1ea1ch s\u1ebd (2,5-25 \u00b5m) c\u00f9ng v\u1edbi dung sai g\u1ea7n (\u00b1 0,005 mm \/ mm). C\u00e1c b\u1ed9 ph\u1eadn c\u1ea7n \u00edt m\u00e0i ho\u1eb7c \u0111\u00e1nh b\u00f3ng. \u0110i\u1ec1u n\u00e0y c\u0169ng ti\u1ebft ki\u1ec7m v\u1eadt li\u1ec7u. M\u00f4 h\u00ecnh h\u01a1i h\u01a1i sao ch\u00e9p c\u00e1c chi ti\u1ebft nh\u1ecf b\u00e9 m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady. V\u00ec v\u1eady, c\u00e1c m\u1eb7t h\u00e0ng cu\u1ed1i c\u00f9ng cho th\u1ea5y \u00edt l\u1ed7i h\u01a1n v\u00e0 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n kh\u00f3 kh\u0103n d\u1ec5 d\u00e0ng.<\/p>\n

4. L\u1ee3i \u00edch m\u00f4i tr\u01b0\u1eddng v\u00e0 n\u0103ng l\u01b0\u1ee3ng<\/strong><\/h3>\n

Lost Foam Casting ch\u1ea1y s\u1ea1ch s\u1ebd v\u00e0 kh\u00f4ng c\u00f3 b\u1ee5i. N\u00f3 tr\u00e1nh kh\u00f3i c\u00f3 h\u1ea1i v\u00e0 s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng \u00edt h\u01a1n 27%. M\u1eb7t kh\u00e1c, \u0111\u00fac c\u00e1t t\u1ea1o ra b\u1ee5i, c\u1ea7n ch\u1ea5t k\u1ebft h\u1ee3p h\u00f3a h\u1ecdc v\u00e0 m\u1ea5t nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng h\u01a1n. Kh\u00f4ng c\u00f3 ch\u1ea5t k\u1ebft h\u1ee3p v\u00e0 v\u1edbi c\u00e1t l\u1ecfng l\u1ecfng c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng, LFC \u0111\u1ec3 l\u1ea1i m\u1ed9t d\u1ea5u \u1ea5n nh\u1ecf h\u01a1n tr\u00ean thi\u00ean nhi\u00ean. \u0110i\u1ec1u n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u1ee5c ti\u00eau to\u00e0n c\u1ea7u v\u1ec1 s\u1ea3n xu\u1ea5t xanh h\u01a1n.<\/p>\n

5. S\u1ea3n xu\u1ea5t nhanh h\u01a1n v\u00e0 gi\u1ea3m ch\u1ea5t th\u1ea3i<\/strong><\/h3>\n

M\u00e1y \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t \u0111\u1ea1t m\u1ee9c s\u1ea3n l\u01b0\u1ee3ng cao (85-90%). Trong khi \u0111\u00f3, Sand Casting th\u1ea5y t\u1ef7 l\u1ec7 th\u00e0nh c\u00f4ng th\u1ea5p h\u01a1n do c\u00e1c v\u1ea5n \u0111\u1ec1 c\u1ed1t l\u00f5i. V\u1edbi LFC, c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 chuy\u1ec3n l\u00f5i, b\u1ee5i b\u1ea9n b\u1ecb m\u1eafc k\u1eb9t ho\u1eb7c b\u1ec1 m\u1eb7t x\u1ea5u x\u1ea3y ra \u00edt h\u01a1n nhi\u1ec1u. C\u00e1c d\u00e2y chuy\u1ec1n t\u1ef1 \u0111\u1ed9ng hi\u1ec7n \u0111\u1ea1i t\u0103ng t\u1ed1c c\u00f4ng vi\u1ec7c h\u01a1n n\u1eefa. Ch\u00fang cho ph\u00e9p chu k\u1ef3 nhanh h\u01a1n, kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn h\u01a1n v\u00e0 k\u1ebft qu\u1ea3 \u1ed5n \u0111\u1ecbnh.<\/p>\n

T\u1ea1i sao c\u00e1c nh\u00e0 m\u00e1y \u0111\u00fac chuy\u1ec3n sang \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t<\/strong><\/h2>\n

L\u1ee3i \u00edch c\u1ee7a Lost Foam Casting so v\u1edbi \u0111\u00fac c\u00e1t l\u00e0 r\u00f5 r\u00e0ng v\u00e0 m\u1ea1nh m\u1ebd. N\u00f3 mang l\u1ea1i \u0111\u1ed9 ch\u00ednh x\u00e1c s\u1eafc n\u00e9t h\u01a1n, chi ph\u00ed th\u1ea5p h\u01a1n v\u00e0 ch\u0103m s\u00f3c t\u1ed1t h\u01a1n cho m\u00f4i tr\u01b0\u1eddng. B\u1edfi v\u00ec \u0111i\u1ec1u n\u00e0y, c\u00e1c nh\u00e0 m\u00e1y \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t \u0111ang thi\u1ebft l\u1eadp ti\u00eau chu\u1ea9n m\u1edbi cho c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i ch\u1ea5t l\u01b0\u1ee3ng cao, chi ti\u1ebft.<\/p>\n

S\u1ef1 thay \u0111\u1ed5i \u0111\u1ebfn t\u1eeb nhu c\u1ea7u ng\u00e0y c\u00e0ng t\u0103ng v\u1ec1 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u00f4ng minh x\u1eed l\u00fd c\u00e1c thi\u1ebft k\u1ebf kh\u00f3 kh\u0103n trong c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 \u00f4 t\u00f4 (kh\u1ed1i \u0111\u1ed9ng c\u01a1 v\u00e0 v\u1ecf h\u1ed9p s\u1ed1), thi\u1ebft b\u1ecb n\u00f4ng nghi\u1ec7p, van, m\u00e1y b\u01a1m v\u00e0 b\u1ed9 ph\u1eadn m\u00e1y m\u00f3c. Khi c\u00e1c c\u00f4ng c\u1ee5 c\u1ea3i thi\u1ec7n, LFC ti\u1ebfp t\u1ee5c cung c\u1ea5p c\u00e1c t\u00f9y ch\u1ecdn linh ho\u1ea1t cho c\u00e1c th\u1eed nghi\u1ec7m nh\u1ecf ho\u1eb7c c\u00f4ng vi\u1ec7c li\u00ean t\u1ee5c l\u1edbn. \u0110i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t l\u1ef1a ch\u1ecdn th\u00f4ng minh cho c\u00e1c c\u00f4ng ty nh\u00ecn v\u00e0o t\u01b0\u01a1ng lai.<\/p>\n

C\u00f4ng ngh\u1ec7 OC<\/strong><\/a>, m\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t h\u00e0ng \u0111\u1ea7u, nh\u00e0 cung c\u1ea5p v\u00e0 nh\u00e0 m\u00e1y chuy\u00ean v\u1ec1 thi\u1ebft b\u1ecb \u0111\u00fac b\u1ecdt m\u1ea5t th\u00f4ng minh cao c\u1ea5p, cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p chuy\u1ec3n tay to\u00e0n di\u1ec7n \u0111\u1ec3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i n\u00e0y. C\u00e1c d\u1ecbch v\u1ee5 ch\u00ednh bao g\u1ed3m:<\/p>\n