YB/T 091-2005 锻(轧)钢球

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基本信息
标准名称:锻(轧)钢球
英文名称:Forging(rolling) steel grinding balls
中标分类: 冶金 >> 钢铁产品 >> 其他钢铁产品
ICS分类: 冶金 >> 钢铁产品 >> 钢铁锻件
替代情况:YB/T 091-1996
发布部门:冶金工业信息标准研究院
发布日期:2005-07-26
实施日期:2005-12-01
首发日期:1900-01-01
作废日期:1900-01-01
提出单位:中国钢铁工业协会
归口单位:冶金工业信息标准研究院
起草单位:武汉科技大学
起草人:周鲁生、刘机、程绍良、周平安、张瑞香、王桂娟、李纲
出版日期:1900-01-01
页数:9页
适用范围

本标准规定了锻(轧)钢球的术语、分类、技术要求、试验方法、检验规则、包装、标志和质量证明书。
本标准适用于冶金工业湿式(或干式)磨矿用的锻(轧)钢球。

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所属分类: 冶金 钢铁产品 其他钢铁产品 冶金 钢铁产品 钢铁锻件
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Product Code:SAE J2238
Title:Airbag Inflator Ballistic Tank Test Procedure Gas Generators Used In Inflatable Restraint Systems
Issuing Committee:Inflatable Restraints Committee
Scope: This SAE Recommended Practice establishes a ballistic tank test procedure for evaluating inflator assemblies used in inflatable restraint systems. It is intended to be a general procedure for repetitive testing and suggests only general guidelines for the safe conduct of tests and data correlation. Uniform test requirements, test procedures, and data recording requirements are specified. The intent of the document is to provide a procedure employing a ballistic tank test method for determining the ability of an inflator to meet requirements for deploying inflatable restraint systems. A ballistic tank test is described which will yield repeatable and comparable results for evaluating a given inflator configuration's pressure output versus time. Use of the ballistic tank test for comparison of various inflator configurations may be of limited value due to differences in gas temperature and mass flow effects on airbag performance as it relates to occupant protection.
Rationale: This SAE Recommended Practice establishes a ballistic tank test procedure for evaluating inflator assemblies used in inflatable restraint systems. It is intended to be a general procedure for repetitive testing and suggests only general guidelines for the safe conduct of tests and data correlation. Uniform test requirements, test procedures, and data recording requirements are specified. The intent of the document is to provide a procedure employing a ballistic tank test method for determining the ability of an inflator to meet requirements for deploying inflatable restraint systems. A ballistic tank test is described which will yield repeatable and comparable results for evaluating a given inflator configuration's pressure output versus time. Use of the ballistic tank test for comparison of various inflator configurations may be of limited value due to differences in gas temperature and mass flow effects on airbag performance as it relates to occupant protection.【英文标准名称】:StandardTestMethodsforMinimumIndexDensityandUnitWeightofSoilsandCalculationofRelativeDensity
【原文标准名称】:土壤最低标准密度和单位重量与相对密度计算的标准试验方法
【标准号】:ASTMD4254-2000(2006)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2000
【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】:D18.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:minimumindexdensity;minimumindexunitweight;relativedensity;Cohesionlesssoil;Compactionmeasurement--soils;Density--soil/rock/relatedmaterials
【摘要】:Thedensity/unitweightofacohesionlesssoilmaybedeterminedbyvariousin-placemethodsinthefieldorbythemeasurementofphysicaldimensionsandmassesbylaboratorysoilspecimens.Thedrydensity/unitweightofacohesionlesssoildoesnotnecessarily,byitself,revealwhetherthesoilislooseordense.Relativedensity/unitweightexpressesthedegreeofcompactnessofacohesionlesssoilwithrespecttotheloosestanddensestconditionasdefinedbystandardlaboratoryprocedures.Onlywhenviewedagainstthepossiblerangeofvariation,intermsofrelativedensity/unitweight,canthedrydensity/unitweightberelatedtothecompactioneffortusedtoplacethesoilinacompactedfillorindicatevolumechangeandstress-straintendenciesofsoilwhensubjectedtoexternalloading.Anabsoluteminimumdensity/unitweightisnotnecessarilyobtainedbythesetestmethods.Note18212;Inaddition,therearepublisheddatatoindicatethatthesetestmethodshaveahighdegreeofvariability.However,thevariabilitycanbegreatlyreducedbycarefulcalibrationofequipment,andcarefulattentiontopropertestprocedureandtechnique.Theuseofthestandardmolds(6.3.1)hasbeenfoundtobesatisfactoryformost1.1Thesetestmethodscoverthedeterminationoftheminimum-indexdrydensity/unitweightofcohesionless,free-drainingsoils.Theadjectivex201C;dryx201D;beforedensityorunitweightisomittedinthetitleandremainingportionsofthisstandardstobebeconsistentwiththeapplicabledefinitionsgiveninSection3onTerminology.1.2Systemofunits:1.2.1Thetestingapparatusdescribedinthisstandardhasbeendevelopedandmanufacturedusingvaluesinthegravimetricorinch-poundsystem.Therefore,testapparatusdimensionsandmassgivenininch-poundunitsareregardedasthestandard.1.2.2Itiscommonpracticeintheengineeringprofessiontoconcurrentlyusepoundstorepresentbothaunitofmass(lbm)andaunitofforce(lbf).Thisimplicitlycombinestwoseparatesystemsofunits;thatis,theabsolutesystemandthegravitationalsystem.Itisscientificallyundesirabletocombinetheuseoftwoseparatesetsofinch-poundunitswithinasinglestandard.Thistestmethodhasbeenwrittenusingthegravitationalsystemofunitswhendealingwiththeinch-poundsystem.Inthissystem,thepound(lb
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:9P.;A4
【正文语种】:英语