SPI 模具表面抛光标准

Blad1 OverviewSPIstandardforpolishing Philips SPI SPI Discription Rainµm Comments standard (old) (new) (DIN) 0-UN-D249 1 A-1 Diamondbuffgrade3 0-0.025 Formirrororopticalfinishes.Mosttimeconsuming.Steelgradeimportanttoresults 1-UN-D249 A-2 Diamondbuffgrade6 0.025-0.05 2 A-3 Diamondbuffgrade15 0.05-0.076 B-1 600gritpaper 0.05-0.076 Removesalltoolandmachiningmarks.Providesgoodmouldrelease.Lightreflectingfinishonmouldedpart,somesheen. 2-UN-D249 B-2 400gritpaper 0.10-0.127 3-UN-D249 3 B-3 320gritpaper 0.23-0.25 C-1 600stone 0.25-0.30 Removesalltoolandmachiningmarks.Providesgoodmouldrelease.Mutefinishonmouldedpart,nosheen. C-2 400stone 0.64-0.71 C-3 320stone 0.97-1.07 4-UN-D249 0.40 TechnicalSmooth,polishingonlyneededforpropermouldingfunction 4 Nomoreinuse. D-1 Dryblastglassbead11,200distanceat0.7Mpa;5sec 0.25-0.30 Fordecorativefinishes.Oftenusedfordiecastandthermosetcooling.Helpshideshrinkmarksandotherimperfections.Dull,nonreflectingfinishonmouldedorcastpart. 5 D-2 Dryblast240oxyde,125distanceat0.7Mpa;5sec 0.66-0.81 D-3 Dryblast240oxyde,150distanceat0.7Mpa;5sec 4.83-5.84Blad2 Blad3