GB/T 2199-1991 机床夹具零件及部件 端面钩形压板(组合)
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来源:标准资料网
基本信息
| 标准名称： | 机床夹具零件及部件 端面钩形压板(组合) |
| 中标分类： |
机械 >>
工艺装备 >>
一般卡具 |
| 替代情况： | 调整为JB/T 8012.4-1995 |
| 发布日期： | 1900-01-01 |
| 实施日期： | 1992-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 2页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 机械 工艺装备 一般卡具
【英文标准名称】:StandardGuidetoObtainableASTMEquivalentPenetrameterSensitivityforRadiographyofSteelPlates1/4to2in.[6to51mm]ThickwithXRaysand1to6in.[25to152mm]ThickwithCobalt-60
【原文标准名称】:用X射线法作1/4至2英寸(6-51mm)厚钢板的射线照相及用钴-60作1至6英寸(25-152mm)厚钢板的射线照相以获得ASTM等效穿透计敏感性的标准指南
【标准号】:ASTME592-1999(2009)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【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】:E07.02
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:cobalt60;density;equivalentpenetrametersensitivity;exposure;referenceradiographicillustrations;Xrays;Cobalt-60radiography;Density;Equivalentpenetrameter;Exposuretests;Penetrameters;Radiographicexamination;Referenceradiographs;S
【摘要】:Akeyconsiderationwithanyradiographicsystemisitscapabilitytoresolvedetail(thatis,sensitivity).Thedegreeofobtainablesensitivitywithagivensystemisdependentuponseveralradiographicparameterssuchassourceenergylevel,filmtype,typeandthicknessofintensifyingscreens,exposure(density),etc.ThisguidepermitstheusertoestimatethedegreeofsensitivitythatmaybeobtainedwithXraysandcobalt-60gammarayswhenusingaprescribedsetofradiographicparameters.ThisguidemayalsobeusedinconjunctionwithTestMethodE746toprovideabasisfordevelopingdataforevaluationofauser''sspecificsystem.Thisdatamayassistauserindeterminingappropriateparametersforobtainingdesireddegreesofradiographicsystemsensitivity.AnalternatetothisapproachistheuseofthoseadjunctradiographicillustrationsdetailedinSection6.1.1Thisguidetoobtainableequivalentpenetrametersensitivitycoverstheminimumpenetrameterthicknessesforwhichtheimageofthe1Tand2Tholesisvisibleforafewpracticalradiographicconditions.Thevaluesrepresentnearoptimumsensitivityforflatsteelplates.Radiographicconditionsthatgivehighervaluesofscatterbuildupfromthespecimenorbackscatteredradiationattheimageplanewillgivepoorersensitivity.1.2EightradiographsthatillustratesensitivitiesobtainablewithpracticalradiographicsystemsareincludedasadjunctstothisguideandmaybeobtainedfromASTM.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H26
【国际标准分类号】:77_040_20
【页数】:5P.;A4
【正文语种】:英语
Product Code:SAE AMS4059
Title:Sheet and Plate - 4.4mg 0.70mn 0.15cr (Cancelled Feb 1996)
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope: This specification has been 'CANCELLED' by the Aerospace Materials Division, SAE, as of February 1996.
