NF A95-101-1984 粉末冶金用的粉末.取样
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来源:标准资料网
【英文标准名称】:POWDERMETALLURGY.POWDERSFORPOWDERMETALLURGICALPURPOSES.SAMPLING.
【原文标准名称】:粉末冶金用的粉末.取样
【标准号】:NFA95-101-1984
【标准状态】:作废
【国别】:法国
【发布日期】:1984-12
【实施或试行日期】:1984-11-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:抽样方法;金属;试验;取样;金属粉末;采样器;粒状材料;粉末冶金;采样设备
【英文主题词】:testing;powdermetallurgy;samplers;particulatematerials;samplingequipment;tests;sampling;samplingmethods;metallicpowder;metals
【摘要】:
【中国标准分类号】:H71
【国际标准分类号】:
【页数】:7P;A4
【正文语种】:其他
Product Code:SAE ARP4945
Title:Aerospace-Solenoid Valve, Hydraulic, Three Way, Two Position, Direct Acting
Issuing Committee:A-6c5 Components Committee
Scope:This SAE Aerospace Recommended Practice (ARP) is intended as a guide to aid in the specifying and testing of direct acting three way, two position, single and multiple coil, normally open and normally closed solenoid valves used for the pilot actuation of hydraulic control systems and the control of hydraulic components.The information presented should be useful in standardizing terminology, in specifying requirements and performance parameters, and in defining test methods.The recommendations do not restrict or attempt to define the internal design features of solenoid valves. Standard mechanical, electrical and fluid porting interfaces are recommended to provide commonalty, interchangeability, design flexibility and to be more affordable.In general, this recommended practice is directed toward solenoid valves for use in military and commercial flight control and hydraulic actuation systems.For military aircraft applications, this recommended practice covers solenoid valves for use in hydraulic actuation systems of the following types as defined in AS5440 with rated operating pressures to 8000 psi (55,160 kPa) and flow rates typically less than 1 gpm (3.785 L/min).Type I-65 to +160 掳F fluid temperature(-54 to +71 掳C)Type II-65 to +275 掳F fluid temperature(-54 to + 135 掳C)For commercial aircraft applications, the information and guidelines of ARP4752 are considered. References are made to several documents that address phosphate ester hydraulic fluids. Detail Specification requirements, however, may need to be modified for a specific application.When recommended by a paragraph, the word "should" is used. The word "shall" is used to designate a firm requirement of a paragraph.【英文标准名称】:Nondestructivetestingofweldedjoints-Ultrasonictestingofweldedjoints
【原文标准名称】:焊点无损检验.焊点超声检验
【标准号】:BSEN1714-1998
【标准状态】:作废
【国别】:英国
【发布日期】:1998-01-15
【实施或试行日期】:1998-01-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:超声波学;金属材料;调节;超声检验;焊接接头;试验类别;焊接;熔焊;焊缝;表面;缺陷;无损检验;定义;手工的;金属;尺寸;材料;试验;分类;焊接工程;描述;材料试验;试验报告;方法
【英文主题词】:Adjustment;Classification;Defects;Definition;Definitions;Descriptions;Dimensions;Fusionwelding;Manual;Materials;Materialstesting;Metallicmaterials;Metals;Methods;Non-destructivetesting;Surfaces;Testcategories;Testreports;Testing;Ultrasonictesting;Ultrasonics;Weldedjoints;Welding;Weldingengineering;Welds
【摘要】:ThisEuropeanStandardspecifiesmethodsforthemanualultrasonictestingoffusionweldedjointsinmetallicmaterialsequaltoandabove8mmthickwhichexhibitlowultrasonicattenuation(especiallythatduetoscatter).Itisprimarilyintendedforuseonfullpenetrationweldedjointswhereboththeweldedandparentmaterialareferritic.Thetechniquesmayalsobeused:—onmaterialsotherthanthosestated;—onpartialpenetrationwelds;—withautomatedequipment;ifrequiredbyspecification.Wherematerialdependentultrasonicvaluesarespecifiedinthisstandardtheyarebasedonsteelshavinganultrasonicsoundvelocityof5920±50m/sforlongitudinalwaves,and3255±30m/sfortransversewaves.Thisistobetakenintoaccountwhentestingmaterialswithadifferentvelocity.Thestandardspecifiesfourtestinglevels,eachcorrespondingtoadifferentprobabilityofdetectionofimperfections.GuidanceontheselectionoftestinglevelsA,BandCisgiveninAnnexA.Therequirementsofthefourthtestinglevel,whichisintendedforspecialapplications,areinaccordancewiththegeneralrequirementsofthisstandardandmayonlybeusedwhendefinedbyspecification.Thisstandard,maybeusedfortheassessmentofindications,foracceptancepurposes,byeitherofthefollowingmethods:1)evaluationbasedprimarilyonlengthandechoamplitudeofthesignalindication;2)evaluationbasedoncharacterizationandsizingoftheindicationbyprobemovementmethods.Themethodsusedshallbespecified.
【中国标准分类号】:J33
【国际标准分类号】:25_160_40
【页数】:32P.;A4
【正文语种】:英语
