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1、钣金材料的选用（Selectionofsheetmetalmaterial）SelectionofsheetmetalmaterialTheselectionofsheetmetalmaterial,wehopetohavesomeuseJISG3313:1998(galvanizedsteelsheet),specificationscodemeaningisasfollows:SECC-E16/E16-POAnoilcode,O,foroilChemicaltreatmentcodeP:phospha
2、tetreatmentZincplatingquantitycodeTheoriginalplatecode"SECC"meansgalvanizedsteelsheetforgeneraluseThenumberofWI/D.##########secondpage4Modifystatus:ADocumentname,sheetmetalmaterialselectionTypeandcodeoforiginalboardMainspecificationsandmainusesSECCisgener
3、allyusedSECDdeepdrawingSECEdeepdrawingZincplatingquantitycodeOnesidegalvanizedquantityindicationmark,zincplatingquantityg/m2(singleside)correspondszincthickness,mum(singleside)E8101.4E16202.8E24304.2SurfacechemicaltreatmentcodeTypes,codes,mainusesPhosphat
4、etreatmentforPpaintsChromatetreatment,C,temporaryembroideryNoprocessingM-Istheoilingcode?TypecodeNotoiled,XOiledOAttached2:hot-dipgalvanizedsteelsheet(JIS,G,3302:1998),specificationscodemeaningasfollows:SGCC-R-XO-Z22Zincplatingquantitycode,itsinstructions
5、eesfourthpiecesofthisspecificationAnoilcode,O,foroilChemicaltreatmentcodeC:chromatetreatment,generalrustpreventiveuse;Surfacefinishingtreatment,RstandsforstandardzincflowersOriginalplatecode,SGCCforgeneralpurposehot-dipgalvanizedsteelsheet;ThenumberofWI/D
6、.##########thirdpage4Modifystatus:ADocumentname,sheetmetalmaterialselectionOriginalplatecodeMainspecificationsandmainusesSGCCisgenerallyusedSGCHisusuallyhardtouseSGCD1deepdrawingSurfacefinishingTypes,codes,mainusesRegularzincflower,R,regularpatternsurface
7、SmallzincZismicronizedZincplatingquantitycodeOnesidegalvanizedquantityindicatedmark,standardgalvanizationquantityg/m2(doubleface)correspondtozinclayerthicknessmm(singleside)NonalloyedZ181800.034Z222200.043Z252500.049Z272750.054AlloyingF06600.013F101000.02
8、1SurfacechemicaltreatmentcodeTypes,codes,mainusesChromatetreatedCforgeneralrustprotectionChromate+organicresin(mixed)treatmentXhighcorrosionresistanceChromatetreatment+specialtreatmentS,corrosionresistanceisbetterNo
