MIL-C-20218F (NOTICE 1)
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MIL-C-20218F (NOTICE 1), MILITARY SPECIFICATION: CHROMIUM PLATING, ELECTRO-DEPOSITED, POROUS (05 FEB 1991)., MIL-C-20218F, dated 13 November 1984, has been reviewed and determined to be valid for use in acquisition.
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基本信息
| 标准名称： | 水泥工业用硬齿面减速机 第3部分：窑用减速机 |
| 英文名称： | Case-hardend Reducer Used In Cement Industry Part 3:Reducer For Rotary Kiln |
| 中标分类： | 建材 >> 建材机械与设备 >> 水泥与水泥制品设备 |
| ICS分类： | |
| 替代情况： | 替代JC/T 878.3-2001 |
| 发布部门： | 工业和信息化部 |
| 发布日期： | 2010-11-10 |
| 实施日期： | 2011-03-01 |
| 首发日期： | |
| 作废日期： | |
| 归口单位： | 国家建筑材料工业机械标准化技术委员会 |
| 起草单位： | 南京高精传动设备制造集团有限公司、天津水泥设计研究院、重庆齿轮箱有限责任公司、江苏省金象减速机有限公司、荆州市巨鲸传动机械有限公司、重庆同力重型机器制造有限公司。 |
| 出版社： | 建材工业出版社 |
| 出版日期： | 2011-03-01 |
适用范围
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前言
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引用标准
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所属分类： 建材 建材机械与设备 水泥与水泥制品设备
【英文标准名称】:StandardTestMethodforTensilePropertiesofReinforcedThermosettingPlasticsUsingStraight-SidedSpecimens【原文标准名称】:用于直边样品的热增强塑料的拉伸性特性的标准试验方法
【标准号】:ASTMD5083-2002
【标准状态】:现行
【国别】:
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D20.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:拉伸应变;增强塑料;试验方法;热固性聚合物
【英文主题词】:tensile;thermosetting;plastics;humidity;
【摘要】:1.1Thistestmethodcoversthedeterminationofthetensilepropertiesofthermosettingreinforcedplasticsusingtestspecimensofuniformnominalwidthwhentestedunderdefinedconditionsofpretreatment,temperature,humidity,andtesting-machinespeed.Note18212;Experiencewiththistestmethodtodatehasbeenlimitedtoglass-reinforcedthermosets.Applicabilitytoothermaterialsremainstobedetermined.1.2Thistestmethodcanbeusedfortestingmaterialsofanythicknessupto14mm(0.55in.).Note28212;Thistestmethodisnotintendedtocoverprecisephysicalprocedures.Itisrecognizedthattheconstant-rate-of-crosshead-movementtypeoftestleavesmuchtobedesiredfromatheoreticalstandpoint,thatwidedifferencesmayexistbetweenrate-of-crossheadmovementandrateofstrainbetweengagemarksonthespecimen,andthatthetestingspeedsspecifieddisguiseimportanteffectscharacteristicofmaterialsintheplasticstate.Further,itisrealizedthatvariationsinthethicknessesoftestspecimensthatarepermittedbytheseprocedures,producevariationsinthesurface-volumeratiosofsuchspecimens,andthatthesevariationsmayinfluencethetestresults.Hence,wheredirectlycomparableresultsaredesired,allsamplesshouldbeofequalthickness.Specialadditionaltestsshouldbeusedwheremoreprecisephysicaldataareneeded.Note38212;Useofthistestmethodfortestingmaterialsofthicknessesgreaterthan14mm(0.55in.)isnotrecommended.Reducingthethicknessbymachiningmaybeacceptableformaterialsofuniformreinforcementamountanddirection,butisgenerallynotrecommended.1.3Testdataobtainedbythistestmethodisrelevantandappropriateforuseinengineeringdesign.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note48212;ThistestmethodistechnicallyequivalenttoISO527-4exceptasnotedbelow:(a)ThistestmethoddoesnotincludetestingoftheTypeIdogboneshapedspecimendescribedinISO527-4.Testingofthistypeofspecimen,primarilyusedforreinforcedandun-reinforcedthermoplasticmaterials,isdescribedinTestMethodD638.(b)Thethicknessoftestspecimensinthistestmethodincludesthe2mmto10mmthicknessrangeofISO527-4,butexpandstheallowabletestthicknessto14mm.Note58212;Fortensilepropertiesofresin-matrixcompositesreinforcedwithorientedcontinuousordiscontinuoushighmodulus>20-Gpa(>3.0106-psi)fibers,testsshallbemadeinaccordancewithTestMethodD3039orISO527Part5.
【中国标准分类号】:G31
【国际标准分类号】:83_140_20
【页数】:7P.;A4
【正文语种】:
