{"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\/ko\/service\/spi-polishing\/","title":{"rendered":"SPI \ud3f4\ub9ac\uc2f1"},"content":{"rendered":"
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SPI \ud3f4\ub9ac\uc2f1 \ub4f1\uae09 \ubd84\ub958 \ubc0f \ud45c\uba74 \uac70\uce60\uae30 \ub9e4\ud2b8\ub9ad\uc2a4<\/h2>\n

\ud50c\ub77c\uc2a4\ud2f1 \uc0b0\uc5c5 \ud611\ud68c(SPI)\ub294 \uace0\uad11\ud0dd \ubbf8\ub7ec \ub9c8\uac10\uc5d0\uc11c \ubb34\uad11\ud0dd \uc2a4\ud1a4 \uadf8\ub77c\uc6b4\ub4dc \ud14d\uc2a4\ucc98\uae4c\uc9c0 \ub124 \uac00\uc9c0 \ubcc4\ub3c4 \ubc94\uc8fc\ub85c \uadf8\ub8f9\ud654\ub41c 12\uac00\uc9c0 \ud45c\uc900 \uae08\ud615 \ub9c8\uac10 \ub4f1\uae09\uc744 \uc815\uc758\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
SPI \ub4f1\uae09<\/th>\n\ud3f4\ub9ac\uc2f1 \ubc29\ubc95 \/ \ub9e4\uccb4<\/th>\n\uac70\uce60\uae30 (Ra)<\/th>\n\ud544\uc694\ud55c \uae08\ud615\uac15<\/th>\n<\/tr>\n<\/thead>\n
A-1 (\uc288\ud37c \ubbf8\ub7ec)<\/td>\n#3 \ub4f1\uae09 \ub2e4\uc774\uc544\ubaac\ub4dc \ubc84\ud551 \ucef4\ud30c\uc6b4\ub4dc<\/td>\n0.012 \u2013 0.025 \u00b5m<\/td>\n\uacbd\ud654 S136 \/ NAK80 (52 HRC)<\/td>\n<\/tr>\n
A-2 (\ud558\uc774 \ubbf8\ub7ec)<\/td>\n#6 \ub4f1\uae09 \ub2e4\uc774\uc544\ubaac\ub4dc \ubc84\ud551 \ucef4\ud30c\uc6b4\ub4dc<\/td>\n0.025 \u2013 0.050 \u00b5m<\/td>\n\uacbd\ud654 S136 \/ H13<\/td>\n<\/tr>\n
A-3 (\ud45c\uc900 \ubbf8\ub7ec)<\/td>\n#15 \ub4f1\uae09 \ub2e4\uc774\uc544\ubaac\ub4dc \ubc84\ud551 \ucef4\ud30c\uc6b4\ub4dc<\/td>\n0.050 \u2013 0.100 \u00b5m<\/td>\nS136 \/ NAK80<\/td>\n<\/tr>\n
B-1 (\uc815\ubc00 \ubc18\uad11\ud0dd)<\/td>\n600 \uadf8\ub9bf \ud398\uc774\ud37c \ud3f4\ub9ac\uc2f1<\/td>\n0.050 \u2013 0.100 \u00b5m<\/td>\nS136 \/ H13 \/ NAK80<\/td>\n<\/tr>\n
B-2 (\uc911\uac04 \ubc18\uad11\ud0dd)<\/td>\n400 \uadf8\ub9bf \ud398\uc774\ud37c \ud3f4\ub9ac\uc2f1<\/td>\n0.100 \u2013 0.150 \u00b5m<\/td>\n\ud45c\uc900 P20 \/ 718H<\/td>\n<\/tr>\n
B-3 (\uc77c\ubc18 \ubc18\uad11\ud0dd)<\/td>\n320 \uadf8\ub9bf \ud398\uc774\ud37c \ud3f4\ub9ac\uc2f1<\/td>\n0.150 \u2013 0.200 \u00b5m<\/td>\n\ud45c\uc900 P20 \/ 718H<\/td>\n<\/tr>\n
C-1 (\ubbf8\uc138 \ubb34\uad11)<\/td>\n600 \uadf8\ub9bf \uc2a4\ud1a4 \ud3f4\ub9ac\uc2f1<\/td>\n0.350 \u2013 0.400 \u00b5m<\/td>\n\ud45c\uc900 P20 \/ 718H<\/td>\n<\/tr>\n
C-2 (\uc911\uac04 \ubb34\uad11)<\/td>\n400 \uadf8\ub9bf \uc2a4\ud1a4 \ud3f4\ub9ac\uc2f1<\/td>\n0.450 \u2013 0.550 \u00b5m<\/td>\n\ud45c\uc900 P20 \/ 718H<\/td>\n<\/tr>\n
C-3 (\uc77c\ubc18 \ubb34\uad11)<\/td>\n320 \uadf8\ub9bf \uc2a4\ud1a4 \ud3f4\ub9ac\uc2f1<\/td>\n0.650 \u2013 0.750 \u00b5m<\/td>\n\ud45c\uc900 P20 \/ 718H<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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SPI \ud3f4\ub9ac\uc2f1 \ub4f1\uae09 \uc801\uc6a9 \ubc0f \uc7ac\ub8cc \ud638\ud658\uc131<\/h2>\n

\ub3d9\uc801 \ub9c8\ucc30, \ud30c\ud305 \ub77c\uc778 \ud50c\ub798\uc2dc \ub610\ub294 \uc774\uc81d\uc158 \ud0c8\ud615 \uacb0\ud568\uc744 \ubc29\uc9c0\ud558\ub824\uba74 \uc62c\ubc14\ub978 SPI \ud3f4\ub9ac\uc2f1 \ub4f1\uae09\uc744 \uc120\ud0dd\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n\n\n\n\n
\uc801\uc6a9 \ub4f1\uae09<\/th>\n\ub300\uc0c1 SPI \ub4f1\uae09<\/th>\n\ud638\ud658 \uac00\ub2a5\ud55c \ud3f4\ub9ac\uba38 \ubc0f \uc5b4\uc148\ube14\ub9ac<\/th>\n<\/tr>\n<\/thead>\n
\ud22c\uba85 \uad11\ud559 \ubc0f \ub80c\uc988<\/td>\nSPI A-1 \/ A-2<\/td>\nPMMA, COC\/COP \ubc0f \uad11\ud559 PC(Makrolon 2407)\uc640 \uac19\uc740 \ud22c\uba85 \uc218\uc9c0\uc640 \ud638\ud658\uc131\uc774 \ub192\uc2b5\ub2c8\ub2e4. \uac10\uc2dc \ub3d4, \uce74\uba54\ub77c \ud504\ub9ac\uc998 \ubc0f \ub80c\uc988\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/td>\n<\/tr>\n
\uace0\uad11\ud0dd \ud654\uc7a5\ud488<\/td>\nSPI A-3 \/ B-1<\/td>\n\uace0\uad11\ud0dd \uac80\uc815 ABS \ud558\uc6b0\uc9d5(POLYLAC PA-757), \uc18c\ube44\uc790 \uac00\uc804, \ub7ed\uc154\ub9ac \ud654\uc7a5\ud488 \uc6a9\uae30 \ubc0f \uc790\ub3d9\ucc28 \ud2b8\ub9bc \ubca0\uc824\uc6a9\uc73c\ub85c \uc9c0\uc815\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td>\n<\/tr>\n
\uae30\ub2a5\uc131 \ubb34\uad11 \ubc0f \uc2ac\ub77c\uc774\ub529 \ubd80\ud488<\/td>\nSPI B-2 \/ C-1<\/td>\n\uc800\ub9c8\ucc30 POM \uc2ac\ub77c\uc774\ub354(Delrin 500P), \uad6c\uc870\uc6a9 \ub098\uc77c\ub860 \ucee4\ub125\ud130(Zytel 101L) \ubc0f \uace0\uad11\ud0dd\uc774 \ud544\uc694\ud558\uc9c0 \uc54a\uc740 \ub0b4\ubd80 \ube0c\ub798\ud0b7\uc5d0 \uc774\uc0c1\uc801\uc785\ub2c8\ub2e4.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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\ub3d9\uc801 \ubab0\ub529: \ubbf8\ub7ec \ub9c8\uac10\uc744 \uc704\ud55c \uae08\ud615 \ubc0f \uc720\ub3d9 \uc81c\uc5b4<\/h2>\n

\uc644\ubcbd\ud55c SPI A-1 \ubbf8\ub7ec \ub9c8\uac10\uc744 \ub2ec\uc131\ud558\ub824\uba74 \ud3f4\ub9ac\uba38 \uacb0\uc815\ud654 \ubc0f \uc815\ubc00 \uae08\ud615\uac15 \ucc98\ub9ac\uc5d0 \ub300\ud55c \uae4a\uc740 \uc804\ubb38 \uc9c0\uc2dd\uc774 \ud544\uc694\ud569\ub2c8\ub2e4:<\/p>\n

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\uacbd\ud654 S136 \uae08\ud615\uac15 \ucf54\uc5b4<\/p>\n

\ub2e4\uc774\uc544\ubaac\ub4dc \ubc84\ud551 \uc911 \ubbf8\uc138\ud55c \ud53c\ud305 \ub610\ub294 \ub9c8\uc774\ud06c\ub85c \ubcf4\uc774\ub4dc\ub97c \ubc29\uc9c0\ud558\uae30 \uc704\ud574 52 HRC\ub85c \uc5f4\ucc98\ub9ac\ub41c \uace0\uc21c\ub3c4 S136 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc774 \uacbd\ud654\ub41c \uae30\ud310\uc744 \ud1b5\ud574 \ub9c8\uc2a4\ud130 \ud3f4\ub9ac\uc154\uac00 \uc758\ub8cc \ubc0f \uad11\ud559 \ubd80\ud488\uc5d0 \uc911\uc694\ud55c Ra 0.012 \u00b5m \ud45c\uba74 \uac70\uce60\uae30\ub97c \uc644\ubcbd\ud558\uac8c \ub2ec\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/div>\n

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\ucee8\ud3ec\uba40 \ucfe8\ub9c1 \ubc0f \uc751\ub825 \uc644\ud654<\/p>\n

\uace0\uad11\ud0dd \ubd80\ud488\uc740 \uc751\ub825 \uade0\uc5f4 \ubc0f \ub0b4\ubd80 \ubcf5\uad74\uc808\uc774 \ubc1c\uc0dd\ud558\uae30 \uc27d\uc2b5\ub2c8\ub2e4. 5\ucd95 CNC \uae30\uacc4\ub97c \uc0ac\uc6a9\ud558\uc5ec \uce90\ube44\ud2f0 \ubcbd \ubc14\ub85c \ub4a4\uc5d0 \uade0\uc77c\ud55c \ucee8\ud3ec\uba40 \ub0c9\uac01 \ub77c\uc778\uc744 \uc9c1\uc811 \ubc00\ub9c1\ud569\ub2c8\ub2e4. \uc774\ub294 \ubd88\uade0\uc77c\ud55c \ub0c9\uac01\uc744 \ubc29\uc9c0\ud558\uace0 \ub192\uc740 \uccb4\uc801 \uc218\ucd95\uc744 \uc81c\uc5b4\ud558\uba70 \uc5f4 \ubcc0\ud615\uc744 \uc81c\uac70\ud569\ub2c8\ub2e4.<\/p>\n<\/div>\n

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\uc774\uc81d\uc158 \ubc0f \ub4dc\ub798\ud504\ud2b8 \uac01\ub3c4 \ucd5c\uc801\ud654<\/p>\n

\uace0\uad11\ud0dd A-1 \ubd80\ud488\uc740 \ucf54\uc5b4 \ube14\ub85d\uc5d0 \uac15\ud55c \uc9c4\uacf5 \ud761\ucc29\ub825\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4. \uc6b0\ub9ac\ub294 \ub109\ub109\ud55c \ub4dc\ub798\ud504\ud2b8 \uac01\ub3c4(\ucd5c\uc18c 1.5\u00b0~2\u00b0)\ub97c \uc124\uacc4\ud558\uace0 \ub113\uc740 \uc5d0\uc5b4 \ubcf4\uc870 \uc774\uc81d\uc158 \ud3ec\ud3ab \ub610\ub294 \uc2a4\ud2b8\ub9ac\ud37c \ud50c\ub808\uc774\ud2b8\ub97c \ud1b5\ud569\ud569\ub2c8\ub2e4. \uc774\ub294 \ub3d9\uc801 \ub9b4\ub9ac\uc2a4 \ub4dc\ub798\uadf8 \ub9c8\ud06c\uc640 \uc2a4\ud06c\ub798\uce58\uac00 \uace0\uad11\ud0dd \ud45c\uba74\uc744 \uc190\uc0c1\uc2dc\ud0a4\ub294 \uac83\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/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\/ko\/wp-json\/wp\/v2\/process\/2293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/ko\/wp-json\/wp\/v2\/process"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/ko\/wp-json\/wp\/v2\/types\/process"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/ko\/wp-json\/wp\/v2\/media\/2588"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/ko\/wp-json\/wp\/v2\/media?parent=2293"}],"wp:term":[{"taxonomy":"process_category","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/ko\/wp-json\/wp\/v2\/process_category?post=2293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}