GMW4700-201402

ZincAlloyPlating

锌合金镀层共20页第1页

通用标准-表面处理标准

1Scope1.4.1Electroplatingmaynotbesuitableforall

1.1MaterialDescription.Thisspecificationcoversmaterialsandapplications.Eachapplicationmust

thebasicrequirementsforbarrelorrackbereviewedwiththeresponsibleMaterialsEngineer

electrodepositedzincalloyoveraferroussubstrate.beforeusage.

Variousalloyplatingswithsupplementaltreatments1.4.2Useofthiscoatingonthreadedsurfaces

arecoveredbythisspecification.and/orbearingsurfacesofjointscouldaffectthe

torque-tensionrelationship.Itisrecommendedthat

Thisspecificationcoversfunctionalrequirements

atorque-tensionstudyofthefastenerjointbe

only.Cosmeticrequirements,suchasbrightness,

performedbeforereleasingthisfinishonanynew

shades,tint,etc.,arenotdefined.Materialapproved

application.

tothisspecificationmaynotmeetspecial

1.4.3Coefficientoffriction(CoF)valuesinthis

cosmetic/appearancerequirementsandmustbe