HG/T 21578-1994 管道减振器
作者:标准资料网 时间:2024-05-07 19:09:44 浏览:9403
来源:标准资料网
基本信息
| 标准名称： | 管道减振器 |
| 中标分类： |
化工 >>
化工机械与设备 >>
化工机械与设备零部件 |
| ICS分类： |
化工技术 >>
化工设备
|
| 发布部门： | 化学工业部 |
| 发布日期： | 1995-01-23 |
| 实施日期： | 1996-03-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2011-08-15 |
| 出版日期： | 1900-01-01 |
| 页数： | 17页 |
适用范围
本标准规定了减振器的系列、尺寸、技术条件、检验、油漆、包装和标志。本标准适用于吸收或消除DN50～DN600管道内由于气流脉动或冲击等引起的振动。
前言
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引用标准
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所属分类： 化工 化工机械与设备 化工机械与设备零部件 化工技术 化工设备
【英文标准名称】:Rollingbearings-Linearmotionrollingbearings-Dynamicloadratingsandratinglife
【原文标准名称】:滚动轴承.线性运动滚动轴承.动态荷载额定值和额定寿命
【标准号】:BSISO14728-1-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-10-08
【实施或试行日期】:2004-10-08
【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】:
【英文主题词】:Ballbearings;Ballguides;Bearings;Definition;Definitions;Dynamic;Dynamicloading;Life(durability);Linear;Linearmotionrecirculatingbearings;Loadcapacity;Loadratings;Loading;Mathematicalcalculations;Motional;Rollingbearings;Rollingelements;Static;Staticloading;Symbols
【摘要】:ThispartofISO14728specifiesmethodsofcalculatingthebasicdynamicloadratingandbasicratinglifeforlinearmotionrollingbearingsmanufacturedfromcontemporary,commonlyused,highquality,hardenedbearingsteelinaccordancewithgoodmanufacturingpracticeandbasicallyofconventionaldesignasregardstheshapeoftherollingcontactsurfaces.Thelifeoflinearmotionrollingbearingsisdefinedandtheconditionsareestablishedforreliablelifecalculations.ThispartofISO14728isnotapplicabletodesignswheretherollingelementsoperatedirectlyontheslidesurfaceofthemachineequipment,unlessthatsurfaceisequivalentinallrespectstotheracewayofthelinearmotionrollingbearingcomponentitreplaces.
【中国标准分类号】:J11
【国际标准分类号】:21_100_20
【页数】:24P.;A4
【正文语种】:英语
【英文标准名称】:Plastics-Filmandsheeting-Determinationofwettingtension(ISO8296:2003)
【原文标准名称】:塑料.薄膜和薄板.湿润表面张力的测定
【标准号】:DINISO8296-2006
【标准状态】:作废
【国别】:德国
【发布日期】:2006-09
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:粘附;描述;测定;膜(物态);箔;包装件;塑料薄膜;塑料;板;聚乙烯;印刷油墨;薄板材;表面特性;表面张力;表面;拉力;试验;试验流体;润湿度;润湿
【英文主题词】:Adhesion;Descriptions;Determination;Films(statesofmatter);Foil;Packages;PE;Plasticfilms;Plasticsheets;Plastics;Plates;Polyethylene;Polypropylene;PP;Printinginks;Sheets;Surfaceproperties;Surfacetension;Surfaces;Tensileforce;Testing;Testingfluids;Tests;Tractiveforce;Wettability;Wetting
【摘要】:1.1ThisInternationalStandardspecifiesamethodfordeterminingthewettingtensionofsurfacesofplasticfilmandsheetingincontactwithdropsofspecifictestsolutions.1.2Theabilityofplasticfilmstoretaininks,coatings,adhesives,etc.,isprimarilydependentonthecharacteroftheirsurfaces,andcanbeimprovedbyoneofseveralsurface-treatmenttechniques.Thesesametreatmenttechniqueshavebeenfoundtoincreasethewettingtensionofaplasticfilmsurfaceincontactwithmixturesofsolvents.Itisthereforepossibletorelatethewettingtensionofaplasticfilmsurfacetoitsabilitytoacceptandretaininks,coatings,adhesives,etc.Themeasuredwettingtensionofaspecificfilmsurfacecanonlyberelatedtoacceptableink,coating,oradhesiveretentionthroughexperience.Wettingtension,initself,isnotacompletelyacceptablemeasureofink.coatingoradhesiveadhesion.1.3Anycontaminationofthefilmsurfaceandanytraceofsurface-activeimpuritiesintheliquidreagentsmayaffectthewettingtension.Itisthereforeimportantthattheportionofthefilmsurfacetobetestedisnottouchedorrubbed,thatallequipmentbescrupulouslyclean,andthatreagentpuritybecarefullycontrolled.Glassapparatus,inparticular,islikelytobecontaminatedwithdetergentshavingverystrongsurfacetensionreducingability,unlessspecificprecautionsaretakentoensuretheirabsencesuchasbycleaningwithanoxidizingagent,forexamplechromic-sulfuricacidorsulfuricacid-ammoniumperoxydisulfate,andrinsingwithdistilledwater.1.4Thetestisnotapplicablewhenthesurfaceofthematerialtobetestedreactschemicallywiththetestsolution.1.5Itshouldbenotedthatsurfacepropertiesofplasticfilmandsheetingmaychangebyageingprocesses.Themeasurementsmustthereforeberelatedtotheageofthefilm.
【中国标准分类号】:G33
【国际标准分类号】:83_140_10
【页数】:7P.;A4
【正文语种】:德语
