JB/T 5820-2008 电线电缆挤塑设备 技术要求
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来源:标准资料网
基本信息
| 标准名称： | 电线电缆挤塑设备 技术要求 |
| 英文名称： | Plastic extruding machines for wires and cables-Technical requirements |
| 中标分类： |
电工 >>
电工材料和通用零件 >>
电缆及其附件 |
| ICS分类： |
电气工程 >>
电线和电缆 >>
电线和电缆综合
|
| 替代情况： | 替代JB/T 5820-1991 |
| 发布部门： | 中华人民共和国国家发展和改革委员会 |
| 发布日期： | 2008-02-01 |
| 实施日期： | 2008-07-01 |
| 首发日期： | |
| 作废日期： | |
| 提出单位： | 中国机械工业联合会 |
| 归口单位： | 全国电线电缆标准化技术委员会 |
| 起草单位： | 上海电缆研究所 |
| 起草人： | 张萍、余慧 |
| 出版社： | 机械工业出版社 |
| 出版日期： | 2008-07-01 |
| 页数： | 10页 |
| 批文号： | 23120-2008 |
适用范围
本标准规定了电线电缆挤塑设备的技术要求。
本标准适用于电线电缆塑料绝缘、护套或其他电缆塑料结构元件挤出设备的设计、制造、验收和鉴定。
前言
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目录
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引用标准
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所属分类： 电工 电工材料和通用零件 电缆及其附件 电气工程 电线和电缆 电线和电缆综合
【英文标准名称】:StandardPracticeforUltrasonicInspectionofAluminum-AlloyWroughtProductsforAerospaceApplications
【原文标准名称】:航空设备用铝合金锻制品的超声波检验的标准实施规程
【标准号】:ASTMB594-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:B07.03
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:航空航天
【英文主题词】:aerospace;aluminum-alloywroughtproducts;ultrasonicinspection;Aerospaceapplications;Aluminumalloys--ultrasonicinspection;Ultrasonictesting--metals/alloys
【摘要】:Anumberoffactorssuchastheconditionoftheentryandbacksurfacesoftheinspectedpart,theinclinationoftheultrasonicbeamwithrespecttotheentrysurface,andvariationsintheperformancecharacteristicsofthetestsystemmaycausesignificantdifferencesinamplitudesofdiscontinuityindicationsandbackreflections.Thesefactorscanseriouslyimpairthereliabilityandthequantitativevalueoftheultrasonictestoutlinedinthispractice.Accurateevaluationsofdiscontinuitysizearealsosignificantlyaffectedbyvariationsinsearchunitcharacteristicsandbyirregularitiesindiscontinuitysurfaceswhichcaninfluencereflectivity.Forthesereasons,thediscontinuitysizesthatmaybeimpliedbytheultrasoniccomparisonsoutlinedinthispracticemustberegardedasx201C;apparentx201D;orx201C;estimatedx201D;inrecognitionofthelimitedquantitativevalueofthemeasurement.Becausenumerousinteractingvariablesinatestsystemcanadverselyinfluencetheresultsofanultrasonicinspection,theactualquantitativeeffectsofdetecteddiscontinuitiesuponthemechanicalpropertiesoftheinspectedproductaredifficulttoestablish.Althoughthispracticeprovidesareliablecontrolofproductqualityduringmanufacture,itisnotapplicableasanexclusiveindicatoroftheultimatequalityandperformanceofcomponentsfabricatedfromtheinspectedproductscoveredbythispractice.1.1Thispracticecoverstherequirementsforpulse-echoultrasonicinspectionandincludescriteriausedtodefineapplicablequalitylevelsofaluminum-alloywroughtproductsforaerospaceapplicationswhenperformanceoftheultrasonictestbytheproducerisspecified,orwhenultrasonicinspectionisperformedbythepurchaseruponreceipt.1.2Thispracticeisnotapplicableifplasticdeformationisintroducedintothematerialafterdelivery.1.3Theultrasonictestdescribedinthispracticeisemployedtodetectinternaldiscontinuitiesorientedinadirectionparallelto,ornearlyparallelto,thesurfaceoftheproduct.Thetestisperformedeitherbytheimmersionmethodorthecontactmethodusingpulsedlongitudinalwaveswhicharetransmittedandreceivedbyasearchunitcontainingeitherasinglecrystaloracombinationofelectricallyinterconnectedmultiplecrystals.Ultrasonictestsemployingeitherthethrough-transmissionortheangle-beamtechniquesarenotincluded.Note18212;Ultrasonictestsemployingangle-beamtechniquesrequirespecialreferenceblocks,searchunits,andscanningproceduresandaresubjecttonegotiationbetweenthepurchaserandthesellerwhensuchtestsarerequiredbythecontractorpurchaseorder.1.4Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitswhichareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H26
【国际标准分类号】:49_025_20
【页数】:10P.;A4
【正文语种】:英语
Product Code:SAE J1326
Title:Test Method for Measuring Wet Color Transfer Characteristics
Issuing Committee:Textile And Flexible Plastics Committee
Scope:This procedure describes a method of measuring the resistance to wet color transfer of dyed, printed, or otherwise colored textile yarns and composites thereof. The purpose of this testing method is to establish a means of ranking the relative resistance to wet staining of composites which contain dyed or colored textile fibers.
