ASTM D4340-1996(2007) 在排热条件下发动机冷却剂对铸造铝合金腐蚀性的标准试验方法

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【英文标准名称】:StandardTestMethodforCorrosionofCastAluminumAlloysinEngineCoolantsUnderHeat-RejectingConditions
【原文标准名称】:在排热条件下发动机冷却剂对铸造铝合金腐蚀性的标准试验方法
【标准号】:ASTMD4340-1996(2007)
【标准状态】:现行
【国别】:
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D15.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;合金;化合物;冷却剂;腐蚀试验;腐蚀;铝
【英文主题词】:aluminum;castaluminumalloys;cylinderhead;enginecoolant;heattransfercorrosion
【摘要】:Itisessentialthatenginecoolantspreventheat-transfercorrosionofaluminumcylinderheadsduringengineoperation.Anycorrosionproductsformedmaydepositoninteriorradiatorsurfaces,reducingheat-transferefficiencyoftheradiator.Overheatingandboil-overofthecoolingsystemmaythenoccur.Thistestmethodprovidesameansforselectivelyscreeningunusedenginecoolantsandwillreadilydistinguishthosecoolantsthatareunsuitableforusewithaluminumcylinderheadengines.However,satisfactoryperformanceofacoolantinthistestmethoddoesnotensureadequatelong-termserviceperformance.Additional,morecomprehensiveevaluationswithsimulatedservice,dynamometer,andvehicletestsshouldbeusedtoestablishthelong-termeffectivenessofthecoolant.1.1Thistestmethodcoversalaboratoryscreeningprocedureforevaluatingtheeffectivenessofenginecoolantsincombatingcorrosionofaluminumcastingalloysunderheat-transferconditionsthatmaybepresentinaluminumcylinderheadengines.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSections11and12.
【中国标准分类号】:H25
【国际标准分类号】:77_120_10
【页数】:4P.;A4
【正文语种】: