【英文标准名称】:PLASTICS.STANDARDATMOSPHERESFORCONDITIONINGANDTESTING.
【原文标准名称】:塑料.调节和试验的标准大气压
【标准号】:NFT51-014-1978
【标准状态】:作废
【国别】:法国
【发布日期】:1978-12
【实施或试行日期】:1978-12-30
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:试样制备;试验条件;试验;标准大气压;试验大气环境;塑料
【英文主题词】:standardatmosphere;testatmospheres;plastics;tests;testing;specimenpreparation;testingconditions
【摘要】:
【中国标准分类号】:G31
【国际标准分类号】:
【页数】:4P;A4
【正文语种】:其他
基本信息
标准名称: | 耙吸挖泥船专用设备修理技术要求 第1部分:耙头 |
英文名称: | Technical requirement for repairing special equipment of trailing hopper suction dredgers Part 1: Draghead |
中标分类: |
公路、水路运输 >>
船舶维护与修理 >>
船舶专用装备维护修理 |
替代情况: | 替代JT/T 185-1995 |
发布部门: | 中华人民共和国交通部 |
发布日期: | 2002-03-07 |
实施日期: | 2002-05-01 |
首发日期: | |
作废日期: | |
提出单位: | 交通部水运司 |
归口单位: | 交通部水运司 |
起草单位: | 交通部科学研究院、中国港湾建设(集团)总公司、上海航道局、天津航道局、广州航道局、长江航道局 |
起草人: | 郭琦贵、王玉铭、郑建宁、郭茂威、张武生、黄灿坚、章志新、郑扬、王键、曲启明、何国忠、王勇、刘宝成 |
出版社: | 人民交通出版社 |
出版日期: | 2002-05-01 |
页数: | 13页 |
适用范围
本标准规定了软、硬两类型耙头的修理技术要求。
本标准适用于耙吸挖泥船耙头的修理与换新。
前言
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目录
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引用标准
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所属分类: 公路 水路运输 船舶维护与修理 船舶专用装备维护修理
【英文标准名称】:StandardPracticeforElectromagnetic(Eddy-Current)ExaminationofFerromagneticCylindricalBarProductAbovetheCurieTemperature
【原文标准名称】:居里温度以上铁磁圆柱棒产品的电磁(涡流)检验的标准实施规程
【标准号】:ASTME1312-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:E07.07
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:artificialdiscontinuity;curietemperature;electricaltransientnoise;electronicallygeneratedsignal;encirclingcoil;ferromagneticcylindricalbar;fluxchange;in-line-eddy-currentexamination;magneticorelectrostaticshield;phase;sens
【摘要】:Thepurposeofthispracticeistodescribeaprocedureforin-line-eddy-currentexaminationofhotcylindricalbarsintherangeofdiameterslistedin1.2forlargeandrepetitivediscontinuitiesthatmayformduringprocessing.Thediscontinuitiesinbarproductcapableofbeingdetectedbytheelectromagneticmethodarelistedin1.3.1.Themethodiscapableofdetectingsurfaceandsomesubsurfacediscontinuitiesthataretypicallyintheorderof0.030in.(0.75mm)anddeeper,butsomeshallowerdiscontinuitiesmightalsobefound.Discontinuitiesthatarenarrowanddeep,butshortinlength,arereadilydetectablebybothprobeandencirclingcoilsbecausetheycauseabruptfluxchanges.Surfaceandsubsurfacediscontinuities(iftheelectromagneticfrequencyprovidessufficienteffectivedepthofpenetration)canbedetectedbythismethod.Discontinuitiessuchasscratchesorseamsthatarecontinuousanduniformforthefulllengthofcutlengthbarsorextendforextensivelineardistancesincoiledproductmaynotalwaysbedetectedwhenencirclingcoilsareused.Thesearemoredetectablewithprobecoilsbyinterceptingthediscontinuityintheirrotationaroundthecircumference.Theorientationandtypeofcoilareimportantparametersincoildesignbecausetheyinfluencethedetectabilityofdiscontinuities.Theeddycurrentmethodissensitivetometallurgicalvariationsthatoccurasaresultofprocessing,thusallreceivedsignalsabovethealarmlevelarenotnecessarilyindicativeofdefectiveproduct.1.1Thispracticecoversproceduresforeddy-currentexaminationofhotferromagneticbarsabovetheCurietemperaturewheretheproductisessentiallynonmagnetic,butbelow2100x00B0;F(1149x00B0;C).1.2Thispracticeisintendedforuseonbarproductshavingdiametersofx00BD;in.(12.7mm)to8in.(203mm)atlinearthroughputspeedsupto1200ft/min(366m/min).Largerorsmallerdiametersmaybeexaminedbyagreementbetweentheusingparties.1.3Thepurposeofthispracticeistoprovideaprocedureforin-lineeddy-currentexaminationofbarsduringprocessingforthedetectionofmajororgrosssurfacediscontinuities.1.3.1Thetypesofdiscontinuitiescapableofbeingdetectedarecommonlyreferredtoas:slivers,laps,seams,roll-ins(scale,dross,andsoforth),andmechanicaldamagesuchasscratches,scores,orindentations.1.4Thispracticedoesnotestablishacceptancecriteria.Theymustbespecifiedbyagreementbetweentheusingparties.1.5Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thispracticedoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthispracticetoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H26
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:英语