SPI美國標(biāo)準(zhǔn)
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- SPI美國標(biāo)準(zhǔn)Description Roughness Averaging Comments
3# 鉆石膏 0-1 拋光達(dá)到鏡面或光學(xué)要求
grade #3 diamond buff for mirror or optical finishes
6# 鉆石膏 1-2 需要很長時(shí)間與成本才能達(dá)到此類拋光級(jí)別
grade #6 diamond buff most time consuming and costly finishes to achieve
15# 鉆石膏 2-3 對(duì)鋼料的質(zhì)量要求很高
grade #15 diamond buff steel grade important to results (D-M-E No.3 or No.5 steel recommended)
600# 砂紙 2-3 消除所有的加工紋
600 grit paper removes all tools and machining marks
400# 砂紙 4-5 提供較好的出模
400 grit paper provides good mold release
320# 砂紙 9-10 在模具上表現(xiàn)為有較暗的反光。
320 grit paper light reflecting finish on molded part,some sheen
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