JC/T 662-1997 双轴搅拌挤出机
作者:标准资料网 时间:2024-05-10 10:58:52 浏览:8738
来源:标准资料网
基本信息
标准名称: | 双轴搅拌挤出机 |
中标分类: |
建材 >>
建材机械与设备 >>
建材机械与设备综合 |
ICS分类: |
|
替代情况: | 被JC/T 662-2011代替 |
发布部门: | 国家建筑材料工业局 |
发布日期: | 1997-02-24 |
实施日期: | 1997-06-01 |
首发日期: | 1900-01-01 |
作废日期: | 2012-07-01 |
提出单位: | 国家建筑材料工业局建材机械标准化技术委员会 |
归口单位: | 国家建筑材料工业局建材机械标准化技术委员会 |
起草单位: | 哈尔滨市建材机械厂 |
起草人: | 靳革、周长胜、高正茂、蒋榴芬 |
出版日期: | 1900-01-01 |
页数: | 7页 |
适用范围
本标准规定了双轴搅拌挤出机的产品分类、技术要求、试验方法、检验规则及标志、包装、运输和贮存。
本标准适用于搅拌经过粉碎的粘土、页岩、煤歼石、粉煤灰等原料,并可加水和蒸汽的双轴搅拌挤出机。
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类: 建材 建材机械与设备 建材机械与设备综合
【英文标准名称】:StandardTestMethodforSteady-StateHeatTransferPropertiesofPipeInsulation
【原文标准名称】:管道隔热稳态热传导性能的标准试验方法
【标准号】:ASTMC335/C335M-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:C16.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:表面导热系数;实验设计;辐射热传导;稳态热传导;热阻;管道热绝缘
【英文主题词】:apparentthermalconductivity;experimentaldesign;radialheattransfer;steadystateheattransfer;thermalresistance;Pipethermalinsulation
【摘要】:Asdeterminedbythistestmethod,thepipeinsulationlinealthermalresistanceorconductance(and,whenapplicable,thethermalresistivityorconductivity)aremeansofcomparinginsulationswhichincludetheeffectsoftheinsulationanditsfituponthepipe,circumferentialandlongitudinaljointing,andvariationsinconstruction,butdonotincludetheeffectsoftheoutersurfaceresistanceorheattransfercoefficient.Theyarethusappropriatewhentheinsulationouter-surfacetemperatureandthepipetemperatureareknownorspecified.However,sincethethermalpropertiesdeterminedbythistestmethodincludetheeffectsoffitandjointing,theyarenottruematerialproperties.Therefore,propertiesdeterminedbythistestmethodaresomewhatdifferentfromthoseobtainedonapparentlysimilarmaterialinflatformusingtheguardedhotplate,TestMethodC177,ortheheatflowmeterapparatus,TestMethodC518.Thepipeinsulationlinealthermaltransferenceincorporatesboththeeffectoftheinsulationanditsfituponthepipeandalsotheeffectofthesurfaceheat-transfercoefficient.Itisappropriatewhentheambientconditionsandthepipetemperatureareknownorspecifiedandthethermaleffectsofthesurfacearetobeincluded.Becauseofthetestconditionrequirementsprescribedinthistestmethod,recognizethatthethermaltransferpropertiesobtainedwillnotnecessarilybethevaluepertainingunderallserviceconditions.Asanexample,thistestmethodprovidesthatthethermalpropertiesshallbeobtainedbytestsondryorconditionedspecimens,whilesuchconditionsarenotnecessarilyrealizedinservice.Theresultsobtainedarestrictlyapplicableonlyfortheconditionsoftestandfortheproductconstructiontested,andmustnotbeappliedwithoutproperadjustmentwhenthematerialisusedatotherconditions,suchasmeantemperaturesthatdifferappreciablyfromthoseofthetest.Withthesequalificationsinmind,thefollowingapply:Forhorizontalorverticalpipesofthesamesizeandtemperature,operatinginthesameambientenvironment,valuesobtainedbythistestmethodcanbeusedforthedirectcomparisonofseveralspecimens,forcomparisontospecificationvalues,andforengineeringdataforestimatingheatlossofactualapplicationsofspecimensidenticaltothosetested(includinganyjacketsorsurfacetreatments).Whenappropriate,correctfortheeffectofendjointsandotherrecurringirregularities(4.4).Whenapplyingtheresultstoinsulationsizesdifferentfromthoseusedinthetest,anappropriatemathematicalanalysisisrequired.Forhomogeneousmaterials,thisconsistsoftheuseofthethermalconductivityorresistivityvalues(correctedforanychangesinmeantemperature)plustheuseofthesurfaceheattransfercoefficientwhentheambienttemperatureisconsidered(forexample,seePracticeC680).Fornonhomogeneousandreflectiveinsulationmaterials,amoredetailedmathematicalmodelisrequiredwhichproperlyaccountsfortheindividualmodesofheattransfer(conduction,convection,radiation)andthevariationofeachmodewithchangingpipesize,insulationthickness,andtemperature.Itisdifficulttomeasurethethermalperformanceofreflectiveinsulationthatincorporateaircavities,sincethegeometryandorientationoftheaircavitiescanaffectconvectiveheattransfer.Whileitisalwaysdesirabletotestfull-lengthpipesections,thisisnotalwayspossibleduetosizelimitationsofexistingpipeinsulationtesters.Ifinsulationsectionsaretestedlessthanfulllength,internalconvectiveheattransferare......
【中国标准分类号】:P94
【国际标准分类号】:91_100_60
【页数】:14P.;A4
【正文语种】:
【英文标准名称】:Establishmentofindexes;terms,formalpresentationofprintedindexes
【原文标准名称】:目录的编制.印刷目录的术语、格式
【标准号】:DIN31630-1-1988
【标准状态】:现行
【国别】:德国
【发布日期】:1988-06
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:记录品;印刷型索引;图书馆学与情报学;索引(文献);文献工作;定义;规范(审批)
【英文主题词】:Definition;Definitions;Documentations;Indexes(documentation);Libraryandinformationscience;Printedindexes;Records;Specification(approval)
【摘要】:DIN31630part1laysdowntheconceptsandtermsforindexesandtheirparts.Inadditionitgivesgeneralinstructionsfortheformalpresentationofindexes.Thisstandardhelpsalsotochoosethemostsuitableindex.
【中国标准分类号】:A14
【国际标准分类号】:01_140_20
【页数】:6P;A4
【正文语种】:德语