Product Code:SAE AS7477
Title:Bolts and Screws, Steel, Uns S66286 Tensile Strength 130 Ksi, Procurement Specification
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope:This document covers bolts and screws made from a corrosion and heat resistant precipitation hardenable iron base alloy of the type identified under the Unified Numbering System as UNS S66286. The following specification designations and their properties are covered: AS7477: 130 ksi minimum ultimate tensile strength at room temperature 70 ksi stress-rupture strength at 1200 degrees F; and AS7477-1: inactive for design; AS7477-2: 130 ksi minimum ultimate tensile strength at room temperature 85 ksi minimum ultimate shear strength at room temperature. Classification: 130 ksi minimum tensile strength at room temperature 1200 degrees F maximum test temperature of parts.
基本信息
| 标准名称： | 开式单齿轮带表卡尺 （≤３００ｍｍ，≤１２ｉｎ） |
| 中标分类： |
|
| 发布日期： | 1990-09-18 |
| 实施日期： | 1990-12-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类：
【英文标准名称】:StandardTestMethodforDeterminationoftheOxidationofUsedLubricantsbyFT-IRUsingPeakAreaIncreaseCalculation
【原文标准名称】:利用峰面积积分用FT-IR测定已使用润滑剂中氧化物的标准试验方法
【标准号】:ASTMD7214-2007a
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D02.96
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:面积;计算;条件;测定;润滑剂;氧化;峰;测试
【英文主题词】:differentialspectrum;FT-IR;in-servicelubricant;lubricant;oxidationmeasurement;PAI;usedoil;FTIRanalysis;Lubricants;Oxidationtesting--petroleumproducts;Usedoil
【摘要】:ThePAIisrepresentativeofthequantityofallthecompoundscontainingacarbonylfunctionthathaveformedbytheoxidationofthelubricant(aldehydes,ketones,carboxylicacids,esters,anhydrides,etc.).ThePAIgivesrepresentativeinformationonthechemicaldegradationofthelubricantwhichhasbeencausedbyoxidation.ThistestmethodwasdevelopedfortransmissionoilsandisusedintheCECL-48-A-00test(OxidationStabilityofLubricatingOilsUsedinAutomotiveTransmissionsbyArtificialAging)asaparameterfortheendoftestevaluation.1.1ThistestmethodcoversthedeterminationoftheoxidationofusedlubricantsbyFT-IR(FourierTransformInfraredSpectroscopy).Itmeasurestheconcentrationchangeofconstituentscontainingacarbonylfunctionthathaveformedduringtheoxidationofthelubricant.1.2Thistestmethodmaybeusedtoindicaterelativechangesthatoccurinanoilunderoxidizingconditions.Thetestmethodisnotintendedtomeasureanabsoluteoxidationpropertythatcanbeusedtopredictperformanceofanoilinservice.1.3Thistestmethodwasdevelopedfortransmissionoilswhichhavebeendegradedeitherinservice,orinalaboratorytest,forexampleabulkoxidationtest.Itmaybeusedforotherin-serviceoils,butthestatedprecisionmaynotapply.1.4Theresultsofthistestmethodmaybeaffectedbythepresenceofothercomponentswithanabsorbancebandinthezoneof1600x2013;1800cm-1.LowPAIvaluesmaybedifficulttodetermineinthosecases.Section6describesthesepossibleinterferencesinmoredetail.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:8P.;A4
【正文语种】: