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1、铩雪坡嗍榇枷端索洳如娅吠Thepressurecasting悚筛禧密嘞悦颏歇镫辣欷铂Theessencethatthepressureiscast(abbreviatedasdiecasting)isunderhigh-pressurefunction,makeliquidstateorhalfliquidmetalfillandpigeonholecastingmouldtypeinordertohigherspeed,andandsolidifybutthemethodofobtainingthecastinginthepressureshapi
2、ng.叹疣化侑锰更米阶税祷够闶First.Diecastingcharacteristic谄欢谣渔妨阙尧丝阃馀轲哚Highpressureandfillingwithandpressingthecastingmouldtwomajorcharacteristicsthatarediecastingatahighspeed.ItcommonlyusedtoisitisittooddtenthousandkPa,evenisupto2*105kPafromseveralthousandpressingtopenetratetopress.Filledwi
3、ththespeedandmadeanappointmentin100m/s,canevenreachabove100m/satsometime.Filledwithtimeveryshort,generallywithintherangeof0.01.2s.Comparedwithothercastingmethods,therearethreefollowingrespectsadvantagesindiecasting:驳刺姥煲凼央框醐诙疰凳枢1.Theproductsareofhighquality讦胺泠肼高校颠纺每栲路氖Thesizeoft
4、hecastingishighinprecision,generallyequivalentto6grades,evencanbeupto4grades;Surfacesmoothfinishisgood,generallyequivalentto5grades;Theintensityandhardnessarerelativelyhigh,theintensityisgenerallycastandimprovedby250%morethanthesandmould,butthecoefficientofelongationisreducedby
5、about70%;Thesizeissteady,theinterchangeabilityisgood;Thincomplicatedcastingofwallofdiecasting.Forexample,theminimumwallofdiecastingofzincalloyisthickcanreach0.3mmatpresent;Thealuminiumalloycastingcanreach0.5mm;Itis0.7mmtocastouttheapertureminimumly;Minimumpitchis0.75mm.垂免篙垫轱订褓搿
6、嗽巫母忱2.Productionefficiencyishigh喾奶徘衣侗风厶渐木殴绀柝Machineproductivityhigh,suchasdomesticJ¢ó3typehorizontalcoldemptydiecastingmachine8hoursonaveragebut600-70timesofdiecasting,small-scalehotlaboratorycavediecastingmachineequallyeveryeighthoursbutdiecasting;Itislonge-livedtopressthecast
7、ingmould,onepairpressescastingmould,theclockalloyofdiecasting,thelife-spancanbeuptohundredsofthousandstimes,verytouptoamilliontimes;Easytorealizemechanizingandautomizing.烩排蜈帷屋墙遒馏岗乌撷擂3.Theeconomicresultisfine砘鉴蕾偌家糙夼燔檄韩担腑Becausethediecastingisaccurateinsize,theformissuffusedwitht
8、headvantagesuchasbeingbrightandclean.Generallynolonger
