摩擦材料原材料的介绍

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1、的（典型的97%a氧化铝、3%P氧化铝）它的很少的无定型相，有给与更更锋利的断口线更具有糜料的特征。人颗粒将划伤刹车鼓。在摩擦材料配方屮超过1%（重量）将磨损刹车片和对偶。硫化僦AntimonyTrisulphideAntimonyTrisulphideAnorangepigmentusedinredvulcanizedrubber.Notstable・Becomesblackandcrystalline（stibnite）whenheatedto200250C・Consideredalubricantathi

2、ghertemperatures（45OC）.PopularinEurope,butnotencouragedintheUnitedStatesbecauseofitstoxicnature・Betterifyoucanmanagewithoutit!Usedinpyrotechnologyandthemanufatureofmatches!硫化锐用于橘红色颜料用于硫化橡胶。不稳定的。当对200-250C被加热时变为黑的和结晶的（辉怫矿）。通常在欧洲作为更高的温度（4500的润滑剂。在美国因为它的毒性格不鼓励使

3、用。最好你能不用它。用于火工产品和火柴的制造。重晶石BarytesSpecificgravity4.4,Mohhardness3.0-3.5・Apopularlowcostfiller,althoughitshighspecificgravitymeansalotofbarytesisrequiredtofillalittlespace・Increasesdensitysomecustomersstillthinkaheavierblockissuperiortoalightweightblock!Relati

4、velyinerthighheatstability.Improveswear,lowersfrictionlevelalittle.Manyofthebestformulasonthemarketareheavilyloadedwithbarytes.Yetsomemanufacturershavedifficultymakingproductswithmorethan5%.Thesecretisintheprocess.Bcirytesisnormallyafinepowder（2%<200mesh,98%

5、<325mesh）andlargequantitiesproduceadenseproductimpervioustothediffusionofgasesduringbaking.Thosemanufacturersusingcopiousamountsofbarytesrarelyopenbakeabove345Fotherwiseblisteringwouldoccur.Tobakeathighertemperaturesrequirestheextraexpenseofconfinedbakingonb

6、akingformsoBeware,barytescanbecontaminatedwithmetaloxideslikesiliconandironoxides.Themoresilicainthebarytesthehigherthefrictionlevelofthefinishedproduct.Baryteswithsilicacontentat.say，10%isnotnecessarilybad・Justrecognizeitisthereanditisaffectingfrictionlevel

7、.Makesureyoursuppliersellsaconsistentproduct.Insomeplaceswhatissoldasbarytesis,infact,amixtureofbariumandstrontiumsulphates.Thisdoesnohavetobebadeither.Justdon'tswitchbackandforthfromone'barytes'toanother.PHYSICALPROPERTIESOFBARYTESHighestDensityofanyExtende

8、rContributestoparticlepackingdensity1.Improvesholdout2.Noiseabsorption3.Contributestoimprovedadhesion4.ExtremelyLowSolubilityChemicallyinert1.Nolaffectedbyacidsoralkalis2.Insolubleinwater3.Lowre