ISO/TR 11071-2 AMD 1-1999 世界范围电梯安全标准比较第2部分:液压电梯修改1:参考日本和澳大利亚标准

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【英文标准名称】:StandardPracticeforEddy-CurrentExaminationofSteelTubularProductsUsingMagneticSaturation
【原文标准名称】:用磁饱和法做管状钢产品涡流检验的标准实施规范
【标准号】:ASTME309-1995(2006)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:无损检验;钢;金属;涡流试验;试验;管
【英文主题词】:discontinuity;encirclingcoil;ferromagneticpipe;ferromagnetictubing;magneticsaturationsystem;magnetizingfieldstrength;probecoil;tube;tubularproduct
【摘要】:Thepurposeofthispracticeistooutlineaprocedureforthedetectionandlocationofdiscontinuitiessuchaspits,voids,inclusions,cracks,orabruptdimensionalvariationsinferromagnetictubingusingtheelectromagnetic(eddy-current)method.Furthermore,therelativeseverityofadiscontinuitymaybeindicated,andarejectionlevelmaybesetwithrespecttothemagnitudeoftheindication.Theresponsefromnaturaldiscontinuitiescanbesignificantlydifferentthanthatfromartificialdiscontinuitiessuchasdrilledholesornotches.Forthisreason,sufficientworkshouldbedonetoestablishthesensitivitylevelandset-uprequiredtodetectnaturaldiscontinuitiesofconsequencetotheenduseoftheproduct.Eddy-currentexaminationsystemsaregenerallynotsensitivetodiscontinuitiesadjacenttotheendsofthetube.Theextentoftheendeffectregioncanbedeterminedinaccordancewith8.6.1.1Thispracticecoversaprocedureforapplyingtheeddy-currentmethodtodetectdiscontinuitiesinferromagneticpipeandtubing(Note0)wherethearticlebeingexaminedisrenderedsubstantiallynon-magneticbytheapplicationofaconcentrated,strongmagneticfieldintheregionadjacenttotheexaminingcoil.Forconvenience,thetermtubeortubularproductwillhereafterbeusedtorefertobothpipeandtubing.1.2Theprocedureisspecificallyapplicabletoeddy-currentexaminationmethodsusinganencircling-coilassembly.However,eddy-currenttechniquesthatemployeitherfixedorrotatingprobe-coilassembliesmaybeusedtoeitherenhancediscontinuitysensitivityonthelargediametertubularproductsortomaximizetheresponsereceivedfromaparticulartypeofdiscontinuity.1.3Thispracticeisintendedforuseontubularproductshavingoutsidediametersfromapproximately1/4to10in.(6.35to254.0mm).Thesetechniqueshavebeenusedforsmallerandlargersizeshowever,andmaybespecifieduponcontractualagreementbetweenthepurchaserandthesupplier.
【中国标准分类号】:H26
【国际标准分类号】:23_040_10;77_140_75
【页数】:5P.;A4
【正文语种】:


Product Code:SAE AMS5352
Title:Steel, Corrosion-Resistant, Investment Castings, 17Cr - 0.55Mo (0.95 - 1.20C), Annealed
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a corrosion-resistant steel in the form of investment castings.These castings have been used typically for parts requiring hardness up to 58 HRC and having resistance to corrosion and to wear, but usage is not limited to such applications. Optimum corrosion resistance is obtained by hardening from 1850 to 1950 °F (1010 to 1066 °C) and tempering at not higher than 800 °F (427 °C).