{"id":4571,"date":"2025-09-18T00:00:36","date_gmt":"2025-09-17T16:00:36","guid":{"rendered":"https:\/\/www.oc-epc.com\/?p=4571"},"modified":"2025-09-16T13:58:10","modified_gmt":"2025-09-16T05:58:10","slug":"tat-ca-ve-duc-bot-bi-mat","status":"publish","type":"post","link":"https:\/\/www.oc-epc.com\/vi\/news-blog\/industry-news\/all-about-lost-foam-casting\/","title":{"rendered":"T\u1ea5t c\u1ea3 v\u1ec1 Lost-Foam Casting"},"content":{"rendered":"

\u0110\u00fac b\u1ecdt b\u1ecb m\u1ea5t<\/strong><\/a> l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt \u0111\u00fac kim lo\u1ea1i hi\u1ec7n \u0111\u1ea1i k\u1ebft h\u1ee3p s\u1ef1 \u0111\u1ed5i m\u1edbi v\u1edbi t\u00ednh th\u1ef1c t\u1ebf. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111\u00f2i h\u1ecfi c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i ph\u1ee9c t\u1ea1p, ch\u00ednh x\u00e1c cao v\u00e0 ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n nh\u1edd nh\u1eefng ti\u1ebfn b\u1ed9 trong c\u00f4ng ngh\u1ec7 t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 v\u1eadt li\u1ec7u. \u0110\u00fac b\u1ecdt b\u1ecb m\u1ea5t l\u00e0 g\u1ea7n nh\u1ea5t b\u1ea1n c\u00f3 th\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c \u0111\u1ec3 s\u1ea3n xu\u1ea5t \"ma thu\u1eadt\" - c\u00e1ch n\u00f3 c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i m\u1ed9t m\u00f4 h\u00ecnh b\u1ecdt tinh t\u1ebf th\u00e0nh m\u1ed9t v\u1eadt ph\u1ea9m kim lo\u1ea1i r\u1eafn v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c g\u1ea7n nh\u01b0 kh\u00f4ng th\u1ef1c t\u1ebf l\u00e0 \u1ea3o thu\u1eadt th\u1ef1c t\u1ebf.<\/p>\n

 <\/p>\n

\"\u0110\u00fac<\/div>\n

Lost-Foam Casting l\u00e0 g\u00ec<\/h2>\n

C\u0169ng theo t\u00ean \u0111\u00fac b\u1ed1c h\u01a1i v\u00e0 qu\u00e1 tr\u00ecnh polystyrene m\u1edf r\u1ed9ng, \u0111\u00fac b\u1ecdt m\u1ea5t l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng b\u1ecdt polystyrene m\u1edf r\u1ed9ng nh\u01b0 m\u1ed9t khu\u00f4n t\u1ea1o th\u00e0nh kim lo\u1ea1i n\u00f3ng ch\u1ea3y v\u00e0 bay h\u01a1i khi ho\u00e0n th\u00e0nh. N\u00f3 xu\u1ea5t hi\u1ec7n v\u00e0o cu\u1ed1i nh\u1eefng n\u0103m 1950 v\u00e0 v\u1eabn l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn ng\u00e0y nay cho c\u1ea3 nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 nh\u1eefng ng\u01b0\u1eddi s\u1edf th\u00edch h\u1ea5p d\u1eabn. M\u00f4 h\u00ecnh cho m\u1eb7t h\u00e0ng b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm \u0111\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c c\u1eaft t\u1eeb m\u1ed9t kh\u1ed1i b\u1ecdt v\u00e0 \u0111\u01b0\u1ee3c ph\u1ee7 b\u1eb1ng g\u1ed1m ho\u1eb7c m\u1ed9t l\u1edbp ph\u1ee7 kh\u00e1c. L\u1edbp ph\u1ee7 n\u00e0y duy tr\u00ec s\u1ef1 t\u00e1ch bi\u1ec7t gi\u1eefa b\u1ecdt v\u00e0 c\u00e1t trong qu\u00e1 tr\u00ecnh \u0111\u00fac. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y cung c\u1ea5p nh\u1eefng l\u1ee3i th\u1ebf \u0111\u00e1ng ch\u00fa \u00fd bao g\u1ed3m \u0111\u1ed9 ch\u00ednh x\u00e1c chi\u1ec1u cao v\u00e0 gi\u1ea3m nhu c\u1ea7u gia c\u00f4ng th\u1ee9 c\u1ea5p.<\/p>\n

L\u00e0m th\u1ebf n\u00e0o n\u00f3 ho\u1ea1t \u0111\u1ed9ng<\/h2>\n

\u0110\u1ea7u ti\u00ean, c\u00e1c khu\u00f4n b\u1ecdt \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb. Ch\u00fang c\u00f3 h\u00ecnh d\u1ea1ng c\u1ee7a s\u1ea3n ph\u1ea9m ho\u00e0n th\u00e0nh d\u1ef1 \u0111\u1ecbnh v\u00e0 ch\u00fang \u0111\u01b0\u1ee3c l\u1ea5p \u0111\u1ea7y th\u00f4ng qua m\u1ed9t h\u1ec7 th\u1ed1ng c\u1ed5ng v\u1edbi c\u00e1c \u0111\u01b0\u1eddng \u0111i cho ph\u00e9p th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt thi\u1ebft k\u1ebf ch\u00ednh x\u00e1c. Ti\u1ebfp theo, b\u1ea1n li\u00ean k\u1ebft m\u1eabu b\u1ecdt ho\u1eb7c khu\u00f4n v\u1edbi c\u01a1 ch\u1ebf c\u1ed5ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 s\u1eafp x\u1ebfp l\u00e0 \u0111\u00fang ch\u1ed7. Sau \u0111\u00f3, b\u1ea1n s\u1ebd \u00e1p d\u1ee5ng s\u01a1n nh\u00fang, khi kh\u00f4, t\u1ea1o ra m\u1ed9t l\u1edbp ph\u1ee7 g\u1ed1m tr\u00ean khu\u00f4n c\u1ee7a b\u1ea1n, t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n c\u1ee7a n\u00f3, kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec7t v\u00e0 kh\u1ea3 n\u0103ng x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ed9 cao c\u1ee7a kim lo\u1ea1i.<\/p>\n

M\u1ed9t khi \u0111i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n, b\u1ea1n s\u1ebd \u0111\u1eb7t khu\u00f4n v\u00e0 c\u01a1 ch\u1ebf \u0111\u00f3ng c\u1eeda (b\u00e2y gi\u1edd l\u00e0 m\u1ed9t m\u1ea3nh) v\u00e0o m\u1ed9t x\u00f4, th\u00f9ng ch\u1ee9a ho\u1eb7c th\u00f9ng c\u00e1t kh\u00f4. Sau khi l\u1ea5p \u0111\u1ea7y c\u00e1t, th\u00f9ng ch\u1ee9a s\u1ebd tr\u1ea3i qua rung \u0111\u1ed9ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1t bao g\u1ed3m \u0111\u1ea7y \u0111\u1ee7 m\u00f4-\u0111un. \u0110\u00e2y l\u00e0 khi kim lo\u1ea1i n\u00f3ng ch\u1ea3y \u0111\u01b0\u1ee3c \u0111\u1ed5 v\u00e0o khu\u00f4n. Nhi\u1ec7t c\u1ee7a \u0111i\u1ec1u n\u00e0y l\u00e0m cho khu\u00f4n bay h\u01a1i (ph\u00f9 th\u1ee7y!), \u0111\u1ec3 l\u1ea1i ch\u1ed7 cho kim lo\u1ea1i \u0111\u1ec3 \u0111i\u1ec1n v\u00e0o v\u00e0 h\u00ecnh th\u00e0nh. Cu\u1ed1i c\u00f9ng, sau khi khu\u00f4n \u0111\u00e3 l\u00e0m m\u00e1t, ch\u00fang s\u1ebd tr\u1ea3i qua l\u00e0m s\u1ea1ch v\u00e0 ho\u00e0n thi\u1ec7n. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf c\u00e1t.<\/p>\n

\u1ee8ng d\u1ee5ng<\/h2>\n

Khi b\u1ea1n mu\u1ed1n m\u1ed9t ph\u1ea7n ph\u1ee9c t\u1ea1p ho\u1eb7c ph\u1ee9c t\u1ea1p v\u1edbi t\u01b0\u1eddng m\u1ecfng h\u01a1n ho\u1eb7c c\u00f3 l\u1ebd c\u00e1c k\u00eanh b\u00ean trong, b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm c\u00e1ch \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t \u0111\u1ec3 ho\u00e0n th\u00e0nh c\u00f4ng vi\u1ec7c. B\u1ea1n s\u1ebd t\u00ecm th\u1ea5y nh\u1eefng th\u1ee9 nh\u01b0 \u0111\u1ea7u xi lanh, kh\u1ed1i \u0111\u1ed9ng c\u01a1, v\u1ecf h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn k\u1ef9 thu\u1eadt kh\u00e1c \u0111\u01b0\u1ee3c l\u00e0m theo c\u00e1ch n\u00e0y.<\/p>\n

\u0110\u00fac b\u1ecdt m\u1ea5t cho ph\u00e9p t\u1ea1o ra c\u00e1c b\u1ed9 ph\u1eadn h\u00ecnh d\u1ea1ng g\u1ea7n l\u01b0\u1edbi ph\u1ee9c t\u1ea1p cao v\u1edbi h\u00ecnh h\u1ecdc ph\u1ee9c t\u1ea1p s\u1ebd kh\u00f3 ho\u1eb7c kh\u00f4ng th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u00fac truy\u1ec1n th\u1ed1ng, v\u00ec m\u00f4 h\u00ecnh b\u1ecdt lo\u1ea1i b\u1ecf nhu c\u1ea7u l\u00f5i v\u00e0 \u0111\u01b0\u1eddng chia. L\u1ee3i th\u1ebf n\u00e0y chuy\u1ec3n th\u00e0nh c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf nh\u01b0 c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1ed9ng c\u01a1 \u00f4 t\u00f4 nh\u1eb9, c\u1ea5u tr\u00fac h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 ph\u1ee9c t\u1ea1p v\u00e0 v\u1ecf b\u01a1m hi\u1ec7u qu\u1ea3, gi\u1ea3m chi ph\u00ed gia c\u00f4ng v\u00e0 ch\u1ea5t th\u1ea3i v\u1eadt li\u1ec7u trong khi cho ph\u00e9p thi\u1ebft k\u1ebf s\u00e1ng t\u1ea1o.<\/p>\n

V\u1eadt li\u1ec7u v\u00e0 kim lo\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<\/h2>\n

Th\u00e9p v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9: Nh\u1eefng h\u1ee3p kim n\u00e0y ph\u1ed5 bi\u1ebfn \u0111\u1ec3 tan ch\u1ea3y v\u00e0 \u0111\u1ed5 v\u00e0o khu\u00f4n b\u1edfi v\u00ec ch\u00fang ’ re m\u1ea1nh m\u1ebd v\u00e0 r\u1ea5t ch\u1ed1ng \u0103n m\u00f2n. Th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng \u0111\u1eaft h\u01a1n c\u00e1c kim lo\u1ea1i kh\u00e1c, nh\u01b0ng \u0111\u1eb7c \u0111i\u1ec3m t\u00edch c\u1ef1c c\u1ee7a n\u00f3 th\u01b0\u1eddng l\u00e0m cho n\u00f3 \u0111\u00e1ng gi\u00e1.<\/p>\n

H\u1ee3p kim nh\u00f4m: \u0110\u00e2y th\u01b0\u1eddng l\u00e0 v\u1eadt li\u1ec7u kh\u00e1 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t. B\u1edfi v\u00ec ch\u00fang nh\u1eb9, m\u1ea1nh m\u1ebd v\u00e0 d\u1eabn nhi\u1ec7t, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 nh\u1eefng ng\u01b0\u1eddi s\u1edf th\u00edch th\u01b0\u1eddng nh\u00ecn v\u00e0o c\u00e1c h\u1ee3p kim nh\u00f4m kh\u00e1c nhau.<\/p>\n

S\u1eaft \u0111\u00fac: Cho d\u00f9 l\u00e0 m\u00e0u x\u00e1m ho\u1eb7c d\u1ec5 u\u1ed1n, s\u1eaft \u0111\u00fac m\u1ea1nh m\u1ebd v\u00e0 ch\u1ed1ng m\u00f2n, l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t l\u1ef1a ch\u1ecdn t\u1ed1t cho ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t n\u00e0y. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t \u0111\u00fang v\u1edbi c\u00e1c t\u00ecnh hu\u1ed1ng n\u1eb7ng h\u01a1n.<\/p>\n

H\u1ee3p kim niken: Nh\u1edd ch\u00fang c\u00f3 th\u1ec3 x\u1eed l\u00fd nhi\u1ec7t v\u00e0 m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n t\u1ed1t nh\u01b0 th\u1ebf n\u00e0o, h\u1ee3p kim niken l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn kh\u00e1c cho \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t. Ch\u00fang c\u00f3 th\u1ec3 \u0111\u1eaft h\u01a1n<\/p>\n

C\u00e1t: B\u1ea1n th\u01b0\u1eddng s\u1ebd s\u1eed d\u1ee5ng c\u00e1t kh\u00f4 \u0111\u1ec3 l\u1ea5p \u0111\u1ea7y th\u00f9ng ch\u1ee9a \u0111\u1ec3 \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t. \u0110\u00f4i khi \"c\u00e1t xanh\" \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<\/p>\n

Lost-Foam Casting vs. \u0111\u00fac c\u00e1t<\/h2>\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n
Chi ti\u1ebft<\/strong><\/th>\n\u0110\u00fac trong v\u00f2ng<\/strong><\/th>\n\u0110\u00fac c\u00e1t<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Qu\u00e1 tr\u00ecnh<\/td>\nKhu\u00f4n \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb b\u1ecdt v\u00e0 ph\u1ee7, sau \u0111\u00f3 h\u01a1i h\u01a1i<\/td>\nKhu\u00f4n \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng c\u00e1t n\u00e9n<\/td>\n<\/tr>\n
S\u1ef1 ph\u1ee9c t\u1ea1p<\/td>\nL\u00fd t\u01b0\u1edfng cho c\u00e1c b\u1ed9 ph\u1eadn ph\u1ee9c t\u1ea1p v\u00e0 ph\u1ee9c t\u1ea1p<\/td>\nL\u00fd t\u01b0\u1edfng cho l\u1edbn h\u01a1n<\/td>\n<\/tr>\n
B\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n<\/td>\nK\u1ebft th\u00fac m\u1ecbn v\u1edbi k\u00edch th\u01b0\u1edbc ch\u00ednh x\u00e1c<\/td>\nB\u1ec1 m\u1eb7t th\u00f4 h\u01a1n<\/td>\n<\/tr>\n
Chi ph\u00ed & C\u00f4ng c\u1ee5<\/td>\nChi ph\u00ed \u0111\u1ea7u ti\u00ean cao h\u01a1n<\/td>\nHi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed h\u01a1n<\/td>\n<\/tr>\n
K\u00edch th\u01b0\u1edbc b\u1ed9 ph\u1eadn & Tr\u1ecdng l\u01b0\u1ee3ng<\/td>\nC\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho nh\u1ecf<\/td>\nTuy\u1ec7t v\u1eddi cho c\u00e1c b\u1ed9 ph\u1eadn l\u1edbn h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 Lost-Foam Casting<\/h2>\n

Li\u1ec7u h\u1ee3p kim \u0111\u1ed3ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m v\u1eadt li\u1ec7u \u0111\u00fac cho \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t?<\/strong>
\n\u0110\u00fang v\u1eady. M\u1eb7c d\u00f9 \u00edt ph\u1ed5 bi\u1ebfn h\u01a1n do \u0111\u1ed9 d\u1eabn nhi\u1ec7t cao c\u1ee7a ch\u00fang \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn th\u1eddi gian bay h\u01a1i b\u1ecdt.<\/p>\n

S\u1ea3n ph\u1ea9m \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t c\u00f3 ch\u1ecbu nhi\u1ec7t kh\u00f4ng?<\/strong>
\n\u0110\u00fang v\u1eady. \u0110\u1eb7c bi\u1ec7t l\u00e0 khi s\u1eed d\u1ee5ng h\u1ee3p kim ch\u1ed1ng nhi\u1ec7t nh\u01b0 th\u00e9p kh\u00f4ng g\u1ec9 ho\u1eb7c v\u1eadt li\u1ec7u d\u1ef1a tr\u00ean niken.<\/p>\n

S\u1ea3n ph\u1ea9m \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng cao kh\u00f4ng?<\/strong>
\n\u0110\u00fang v\u1eady. Qu\u00e1 tr\u00ecnh cho ph\u00e9p s\u1ea3n xu\u1ea5t h\u00ecnh d\u1ea1ng g\u1ea7n l\u01b0\u1edbi v\u1edbi y\u00eau c\u1ea7u gia c\u00f4ng t\u1ed1i thi\u1ec3u.<\/p>\n

 <\/p>\n

\"cao<\/div>\n

L\u00e0m th\u1ebf n\u00e0o Hangzhou Ouchen Technology Co., LTD c\u00f3 th\u1ec3 gi\u00fap \u0111\u1ee1<\/h2>\n

C\u00f4ng ty TNHH C\u00f4ng ngh\u1ec7 H\u00e0ng Ch\u00e2u Ouchen<\/strong><\/a>, chuy\u00ean s\u1ea3n xu\u1ea5t c\u00e1c doanh nghi\u1ec7p thi\u1ebft b\u1ecb khu v\u1ef1c tr\u1eafng \u0111\u00fac b\u1ecdt m\u1ea5t th\u00f4ng minh cao c\u1ea5p t\u1eadp trung v\u00e0o nghi\u00ean c\u1ee9u t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb cao c\u1ea5p trong l\u0129nh v\u1ef1c n\u00e0y.<\/p>\n

C\u00f4ng ty gi\u1edbi thi\u1ec7u c\u00f4ng ngh\u1ec7 h\u00e0ng \u0111\u1ea7u c\u1ee7a \u0110\u1ee9c EPS \/ EPP k\u1ebft h\u1ee3p v\u1edbi m\u1ed9t s\u1ed1 b\u1eb1ng s\u00e1ng ch\u1ebf s\u1edf h\u1eefu tr\u00ed tu\u1ec7 \u0111\u1ed9c l\u1eadp \u0111\u00e3 \u0111\u1ed5i m\u1edbi trong nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n khoa h\u1ecdc v\u00e0 c\u00f4ng ngh\u1ec7<\/p>\n

Thi\u1ebft b\u1ecb ti\u00ean ti\u1ebfn c\u1ee7a h\u1ecd<\/strong><\/a> bao g\u1ed3m:<\/p>\n