【英文标准名称】:StandardTestMethodforQuenchingTimeofHeat-TreatingFluids(MagneticQuenchometerMethod)
【原文标准名称】:热处理液体淬火时间的标准试验方法(磁性冷却速度试验器法)
【标准号】:ASTMD3520-2004
【标准状态】:作废
【国别】:
【发布日期】:2004
【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】:D02.L0.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:淬火时间;试验;石油产品;淬火;润滑剂;液体
【英文主题词】:Curiepoint;magneticquenchometer;quench;quenchant
【摘要】:Theresultsobtainedbythetestmethoddescribedareusefulasguidesinselectingfluidswithrespecttoquenchingspeedcharacteristicsdesiredformetalquenchingapplications.Note38212;Althoughthistestmethodhasbeenfoundusefulforsomewater-basedfluids,thestatisticalsignificanceofthetesthasbeenestablishedonlybyround-robintestingofpetroleum-basedfluids.Theseresultswillprovideameasureofquenchingspeed(coolingrate)fromapproximately885x00B0;C(1625x00B0;F)to354x00B0;C(670x00B0;F)andarenotdirectlyproportionaltohardnessobtainableonmetalsquenchedthereinasmanyotherfactorsareinvolvedinthequenchingprocessinactualplantoperationwithproductionparts.Note48212;TestMethodD6200describestheequipmentandprocedureforcharacterizingthetime-temperatureperformanceofaquenchingoilthroughtheentirecoolingprocess.FIG.1MagneticQuenchometerFIG.2TestSequenceinBeaker1.1ThistestmethodcoversaprocedureformakingacomparativeevaluationofthequenchingspeedcharacteristicsofpetroleumfluidsusedinthequenchingofmetalsbymeansoftheMagneticQuenchometer.Note18212;AcomparisonmethodfortestingthehardenabilityofsteelisTestMethodA255.Note28212;AnadditionalcomparisonmethodforevaluationofthequenchingspeedcharacteristicsofpetroleumfluidsusedinthequenchingofmetalsisTestMethodD6200.1.2Thistestmethodprovidesameasureofchangesinoilchemistryduetocontamination,baseoildegradation,andadditivedrag-outduringuse.Thistestmeasureschangesinthequenchingspeedcharacteristicsofpetroleumfluidsatthehightemperature(>354176;C).Thistestmethoddoesnotreliablypredictmetallurgicalperformance.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:J36
【国际标准分类号】:75_120
【页数】:6P.;A4
【正文语种】: