ASTM D2825-2002(2008) 磨料及相关材料的标准术语

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下一篇: ASTM E748-2002(2008) 材料的热中子射线照相术标准实施规程

【英文标准名称】:Hydraulicfluidpower-Fluidcontamination-Determinationofparticulatecontaminationbythecountingmethodusinganopticalmicroscope
【原文标准名称】:液压传动液体污染采用光学显微镜测定颗粒污染度的方法
【标准号】:ISO4407-2002
【标准状态】:现行
【国别】:国际
【发布日期】:2002-04
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC131
【标准类型】:()
【标准水平】:()
【中文主题词】:颗粒密度;液压传动;计数;液压传动系统;高压液体;流体技术;液压系统;液压液;试验;测定;测试;显微术;液压装置;定义;污染
【英文主题词】:Contamination;Counting;Definitions;Determination;Fluidtechnology;Hydraulicfluidpower;Hydraulicfluids;Hydraulicsystems;Hydraulictransmissionsystems;Hydraulics;Microscopy;Particledensity;Pressureliquids;Testing;Tests
【摘要】:ThisInternationalStandardspecifiesmethodsfordeterminingthelevelofparticipatecontaminationinliquidsusedinhydraulicsystemsbycountingthenumberofparticlesdepositedonthesurfaceofamembranefilterusinganopticalmicroscope.Itincludesparticlecountingbytwomanualmethodsandimageanalysis,usingeithertransmittedorincidentlightingsystems.Particlesizes≥2μncanbesizedandcountedbythismethod,buttheresolutionandaccuracyoftheresultswiBdependupontheopticalsystemusedandthecapabilitiesoftheoperator.AllhydraulicfluidswithawiderangeofcontaminationlevelscanbeanalysedaccordingtothisInternationalStandard.However,thecountinguncertaintyatthelargerparticlesizesincreasesifthevolumefilteredisreducedtoallowsmallersizedparticlestobecounted,whereafineprecipitateorahighparticleconcentrationispresent.
【中国标准分类号】:J20
【国际标准分类号】:23_100_60
【页数】:14P;A4
【正文语种】:英语


MIL-HDBK-1886, DEPARTMENT OF DEFENSE HANDBOOK: TUNGSTEN CARBIDE-COBALT COATING, DETONATION PROCESS FOR (27 MAR 1998) [SUPERSEDING MIL-STD-1886]., NOTE: MIL-STD-1886 has been redesignated as a handbook, and is to be used for guidance purposes only. This document is no longer to be cited as a requirement. This standard covers the procedure for applying tungsten carbide-cobalt coatings to metal parts by the detonation process and the acceptance criteria for the finished parts. This detonation process for applying tungsten carbide-cobalt coating provides a hard, wear-resistant surface on metal parts which do not operate at temperatures higher than 1,000 degrees Fahrenheit (°F) [538 degrees Celsius (538°C)]. The coating is not recommended for surfaces with deep v-shaped grooves, blind cavities, narrow holes, sharp corners, or where deformation of the base metal is expected.