件使用的极限LongtermheatagingoftypeC:85℃×温度确定。1008hc)TypeD&E:thetimeis94h.ordingtothetoptemperatureofthefinishedpartinuse.4.3压缩永久变形4.3CompressionSet压缩永久变形参考SMTC5400239中……。pressionsetshouldrefertotheSMTC5400239.当样品硬度<80ShoreA时,压缩量为25%;当Hardness<80ShoreA:25%deformation样品硬度>80ShoreA时,压缩量为20%。Hardness>80ShoreA:20%deformation4.4臭氧老化4.4Ozoneresistance150-mmlongfinishedpartsectionsare试样为150mm长的成品,将成品在固定架fastenedintheclampingdeviceonthetest上固定并加紧。在试样中心段作100mm的标距。frameandstretcheduntila15%elongationis拉伸试样,使标距具有15%的伸长。测试前在reachedbetweenthemarkings,whichare室温下调节46h。臭氧老化条件为200pphm、spaced100mmapart.Priortoagingintheozoneclimatechamber,thetestframe,with℃保持2346hthefinishedpartsectionsclampedin,limatisedatroomtemperaturefor46h.Thetestconditionis200pphm、23℃keep46h.8©上汽集团版权所有秘密文件注意保密CopyrightSAICMOTORConfidential
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