{"id":2293,"date":"2026-05-20T09:06:22","date_gmt":"2026-05-20T01:06:22","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2293"},"modified":"2026-07-01T09:32:26","modified_gmt":"2026-07-01T01:32:26","slug":"spi-polishing","status":"publish","type":"process","link":"https:\/\/www.jcinjectionmolding.com\/vi\/service\/spi-polishing\/","title":{"rendered":"\u0110\u00e1nh b\u00f3ng SPI"},"content":{"rendered":"
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Ph\u00e2n lo\u1ea1i \u0111\u00e1nh b\u00f3ng SPI & Ma tr\u1eadn \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t<\/h2>\n

Hi\u1ec7p h\u1ed9i C\u00f4ng nghi\u1ec7p Nh\u1ef1a (SPI) \u0111\u1ecbnh ngh\u0129a 12 c\u1ea5p \u0111\u1ed9 ho\u00e0n thi\u1ec7n khu\u00f4n ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c nh\u00f3m th\u00e0nh b\u1ed1n lo\u1ea1i ri\u00eang bi\u1ec7t, t\u1eeb b\u1ec1 m\u1eb7t g\u01b0\u01a1ng b\u00f3ng cao \u0111\u1ebfn k\u1ebft c\u1ea5u m\u1edd m\u00e0i \u0111\u00e1:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
C\u1ea5p SPI<\/th>\nPh\u01b0\u01a1ng ph\u00e1p \/ M\u00f4i tr\u01b0\u1eddng \u0111\u00e1nh b\u00f3ng<\/th>\n\u0110\u1ed9 nh\u00e1m (Ra)<\/th>\nTh\u00e9p khu\u00f4n y\u00eau c\u1ea7u<\/th>\n<\/tr>\n<\/thead>\n
A-1 (Si\u00eau g\u01b0\u01a1ng)<\/td>\nH\u1ee3p ch\u1ea5t \u0111\u00e1nh b\u00f3ng kim c\u01b0\u01a1ng c\u1ea5p #3<\/td>\n0,012 \u2013 0,025 \u00b5m<\/td>\nS136 \/ NAK80 \u0111\u00e3 t\u00f4i c\u1ee9ng (52 HRC)<\/td>\n<\/tr>\n
A-2 (G\u01b0\u01a1ng cao)<\/td>\nH\u1ee3p ch\u1ea5t \u0111\u00e1nh b\u00f3ng kim c\u01b0\u01a1ng c\u1ea5p #6<\/td>\n0.025 \u2013 0.050 \u00b5m<\/td>\nS136 \/ H13 \u0111\u00e3 t\u00f4i c\u1ee9ng<\/td>\n<\/tr>\n
A-3 (G\u01b0\u01a1ng ti\u00eau chu\u1ea9n)<\/td>\nH\u1ee3p ch\u1ea5t \u0111\u00e1nh b\u00f3ng kim c\u01b0\u01a1ng c\u1ea5p #15<\/td>\n0.050 \u2013 0.100 \u00b5m<\/td>\nS136 \/ NAK80<\/td>\n<\/tr>\n
B-1 (B\u00e1n b\u00f3ng m\u1ecbn)<\/td>\n\u0110\u00e1nh b\u00f3ng b\u1eb1ng gi\u1ea5y nh\u00e1m 600 grit<\/td>\n0.050 \u2013 0.100 \u00b5m<\/td>\nS136 \/ H13 \/ NAK80<\/td>\n<\/tr>\n
B-2 (B\u00e1n b\u00f3ng trung b\u00ecnh)<\/td>\n\u0110\u00e1nh b\u00f3ng b\u1eb1ng gi\u1ea5y nh\u00e1m 400 grit<\/td>\n0.100 \u2013 0.150 \u00b5m<\/td>\nP20 \/ 718H ti\u00eau chu\u1ea9n<\/td>\n<\/tr>\n
B-3 (B\u00e1n b\u00f3ng th\u00f4ng th\u01b0\u1eddng)<\/td>\n\u0110\u00e1nh b\u00f3ng b\u1eb1ng gi\u1ea5y nh\u00e1m 320 grit<\/td>\n0,150 \u2013 0,200 \u00b5m<\/td>\nP20 \/ 718H ti\u00eau chu\u1ea9n<\/td>\n<\/tr>\n
C-1 (M\u1edd m\u1ecbn)<\/td>\n\u0110\u00e1nh b\u00f3ng b\u1eb1ng \u0111\u00e1 600 grit<\/td>\n0,350 \u2013 0,400 \u00b5m<\/td>\nP20 \/ 718H ti\u00eau chu\u1ea9n<\/td>\n<\/tr>\n
C-2 (M\u1edd trung b\u00ecnh)<\/td>\n\u0110\u00e1nh b\u00f3ng b\u1eb1ng \u0111\u00e1 400 grit<\/td>\n0,450 \u2013 0,550 \u00b5m<\/td>\nP20 \/ 718H ti\u00eau chu\u1ea9n<\/td>\n<\/tr>\n
C-3 (M\u1edd th\u01b0\u1eddng)<\/td>\n\u0110\u00e1nh b\u00f3ng b\u1eb1ng \u0111\u00e1 320 grit<\/td>\n0,650 \u2013 0,750 \u00b5m<\/td>\nP20 \/ 718H ti\u00eau chu\u1ea9n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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\u1ee8ng d\u1ee5ng c\u1ea5p \u0111\u1ed9 \u0111\u00e1nh b\u00f3ng SPI v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1eadt li\u1ec7u<\/h2>\n

Vi\u1ec7c ch\u1ecdn \u0111\u00fang c\u1ea5p \u0111\u1ed9 \u0111\u00e1nh b\u00f3ng SPI l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ng\u0103n ng\u1eeba ma s\u00e1t \u0111\u1ed9ng, ba via t\u1ea1i \u0111\u01b0\u1eddng ph\u00e2n khu\u00f4n ho\u1eb7c khuy\u1ebft t\u1eadt khi \u0111\u1ea9y s\u1ea3n ph\u1ea9m ra kh\u1ecfi khu\u00f4n:<\/p>\n\n\n\n\n\n\n\n
Lo\u1ea1i \u1ee9ng d\u1ee5ng<\/th>\nC\u1ea5p \u0111\u1ed9 SPI m\u1ee5c ti\u00eau<\/th>\nPolyme & c\u1ee5m l\u1eafp r\u00e1p t\u01b0\u01a1ng th\u00edch<\/th>\n<\/tr>\n<\/thead>\n
Quang h\u1ecdc & Th\u1ea5u k\u00ednh trong su\u1ed1t<\/td>\nSPI A-1 \/ A-2<\/td>\nT\u01b0\u01a1ng th\u00edch cao v\u1edbi nh\u1ef1a trong su\u1ed1t nh\u01b0 PMMA, COC\/COP v\u00e0 PC quang h\u1ecdc (Makrolon 2407). D\u00f9ng cho v\u00f2m camera gi\u00e1m s\u00e1t, l\u0103ng k\u00ednh camera v\u00e0 th\u1ea5u k\u00ednh.<\/td>\n<\/tr>\n
M\u1ef9 ph\u1ea9m b\u00f3ng cao<\/td>\nSPI A-3 \/ B-1<\/td>\n\u0110\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh cho v\u1ecf ABS \u0111en b\u00f3ng cao (POLYLAC PA-757), thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng, l\u1ecd m\u1ef9 ph\u1ea9m cao c\u1ea5p v\u00e0 vi\u1ec1n trang tr\u00ed \u00f4 t\u00f4.<\/td>\n<\/tr>\n
Chi ti\u1ebft tr\u01b0\u1ee3t & b\u1ec1 m\u1eb7t m\u1edd ch\u1ee9c n\u0103ng<\/td>\nSPI B-2 \/ C-1<\/td>\nL\u00fd t\u01b0\u1edfng cho thanh tr\u01b0\u1ee3t POM ma s\u00e1t th\u1ea5p (Delrin 500P), \u0111\u1ea7u n\u1ed1i Nylon k\u1ebft c\u1ea5u (Zytel 101L) v\u00e0 gi\u00e1 \u0111\u1ee1 b\u00ean trong kh\u00f4ng y\u00eau c\u1ea7u \u0111\u1ed9 b\u00f3ng cao.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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\u00c9p \u0111\u1ed9ng: Khu\u00f4n m\u1eabu v\u00e0 Ki\u1ec3m so\u00e1t D\u00f2ng ch\u1ea3y cho B\u1ec1 m\u1eb7t G\u01b0\u01a1ng<\/h2>\n

\u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c b\u1ec1 m\u1eb7t g\u01b0\u01a1ng SPI A-1 ho\u00e0n h\u1ea3o \u0111\u00f2i h\u1ecfi chuy\u00ean m\u00f4n s\u00e2u v\u1ec1 k\u1ebft tinh polymer v\u00e0 x\u1eed l\u00fd th\u00e9p khu\u00f4n ch\u00ednh x\u00e1c:<\/p>\n

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L\u00f5i th\u00e9p khu\u00f4n S136 \u0111\u00e3 t\u00f4i c\u1ee9ng<\/p>\n

\u0110\u1ec3 ng\u0103n ng\u1eeba r\u1ed7 vi m\u00f4 ho\u1eb7c l\u1ed7 h\u1ed5ng vi m\u00f4 trong qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng kim c\u01b0\u01a1ng, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9 S136 \u0111\u1ed9 tinh khi\u1ebft cao \u0111\u01b0\u1ee3c x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ebfn 52 HRC. N\u1ec1n v\u1eadt li\u1ec7u c\u1ee9ng n\u00e0y cho ph\u00e9p c\u00e1c chuy\u00ean gia \u0111\u00e1nh b\u00f3ng b\u1eadc th\u1ea7y c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ea1t \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t Ra 0,012 \u00b5m ho\u00e0n h\u1ea3o, r\u1ea5t quan tr\u1ecdng cho c\u00e1c b\u1ed9 ph\u1eadn y t\u1ebf v\u00e0 quang h\u1ecdc.<\/p>\n<\/div>\n

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L\u00e0m m\u00e1t ph\u00f9 h\u1ee3p & Gi\u1ea3m \u1ee9ng su\u1ea5t<\/p>\n

C\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c \u0111\u00e1nh b\u00f3ng cao d\u1ec5 b\u1ecb n\u1ee9t do \u1ee9ng su\u1ea5t v\u00e0 l\u01b0\u1ee1ng chi\u1ebft b\u00ean trong. S\u1eed d\u1ee5ng m\u00e1y CNC 5 tr\u1ee5c c\u1ee7a ch\u00fang t\u00f4i, ch\u00fang t\u00f4i phay c\u00e1c \u0111\u01b0\u1eddng l\u00e0m m\u00e1t ph\u00f9 h\u1ee3p \u0111\u1ed3ng \u0111\u1ec1u ngay ph\u00eda sau th\u00e0nh khoang khu\u00f4n. \u0110i\u1ec1u n\u00e0y ng\u0103n ng\u1eeba l\u00e0m m\u00e1t kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u, ki\u1ec3m so\u00e1t \u0111\u1ed9 co r\u00fat th\u1ec3 t\u00edch cao v\u00e0 lo\u1ea1i b\u1ecf cong v\u00eanh do nhi\u1ec7t.<\/p>\n<\/div>\n

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T\u1ed1i \u01b0u h\u00f3a g\u00f3c tho\u00e1t khu\u00f4n v\u00e0 g\u00f3c nghi\u00eang<\/p>\n

C\u00e1c chi ti\u1ebft A-1 b\u00f3ng cao t\u1ea1o l\u1ef1c h\u00fat ch\u00e2n kh\u00f4ng m\u1ea1nh l\u00ean c\u00e1c kh\u1ed1i l\u00f5i. Ch\u00fang t\u00f4i thi\u1ebft k\u1ebf g\u00f3c nghi\u00eang r\u1ed9ng r\u00e3i (t\u1ed1i thi\u1ec3u 1,5\u00b0 \u0111\u1ebfn 2\u00b0) v\u00e0 t\u00edch h\u1ee3p c\u00e1c ch\u1ed1t \u0111\u1ea9y h\u1ed7 tr\u1ee3 kh\u00ed n\u00e9n ho\u1eb7c t\u1ea5m \u0111\u1ea9y r\u1ed9ng. \u0110i\u1ec1u n\u00e0y ng\u0103n ng\u1eeba c\u00e1c v\u1ebft k\u00e9o do nh\u1ea3 khu\u00f4n \u0111\u1ed9ng v\u00e0 v\u1ebft x\u01b0\u1edbc l\u00e0m h\u1ecfng c\u00e1c b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c \u0111\u00e1nh b\u00f3ng cao.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

SPI Polishing Classifications & Surface Roughness Matrix The Society of the Plastics Industry (SPI) defines 12 standard mold finish grades grouped into four distinct categories, ranging from high-gloss mirror finishes to matte stone-ground textures: SPI Grade Polishing Method \/ Medium Roughness (Ra) Required Mold Steel A-1 (Super Mirror) Grade #3 Diamond Buffing Compound 0.012 – […]<\/p>\n","protected":false},"featured_media":2588,"template":"","process_category":[25],"class_list":["post-2293","process","type-process","status-publish","has-post-thumbnail","hentry","process_category-surface-finishes"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/process\/2293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/process"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/types\/process"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media\/2588"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=2293"}],"wp:term":[{"taxonomy":"process_category","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/process_category?post=2293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}