【英文标准名称】:Destructivetestsonweldsinmetallicmaterials-Hotcrackingtestsforweldments-Arcweldingprocesses-Part1:General
【原文标准名称】:金属材料焊接的有损试验.焊接的热裂试验.弧焊工艺.第1部分:总则
【标准号】:ISO17641-1-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-08
【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/TC44
【标准类型】:()
【标准水平】:()
【中文主题词】:焊接;焊接接头;金属材料;试样;定义;应力;金属;总论;焊缝;破坏试验;焊接工程;热裂试验方法;裂开;基础;材料试验;电弧焊接;试验
【英文主题词】:Arcwelding;Basis;Cracking;Definitions;Destructivetesting;Generalsection;Hotcrackingtestmethod;Materialstesting;Metallicmaterials;Metals;Samples;Stress;Testing;Weldedjoints;Welding;Weldingengineering;Weldings;Welds
【摘要】:Thisstandardgivesanintroductiontothefundamentalsofhotcrackinginweldmetalsandparentalloys,andbrieflydescribesthetestsavailableforarcweldingprocesses.—Part2:Selfrestrainttests-specifiesthetestswhichshouldbeusedtoassessthesusceptibilitytohotcrackingofweldmetals.Thestrainstocausecrackingareprovidedbytherestraintoftheweldment.—Part3:Externallyloadedtests-describesthetestswhichcanbeusedtoassessthesusceptibilitytohotcrackingofparentalloysandweldmetals.Thestrainstocausecrackingareprovidedbyexternalloadingonthetestspecimen.NOTEThetestsinpart3requiretheuseofnon-standardisedproprietaryequipmentanddifferentlaboratoriesusevariousprocedures,testconditionsandspecimensizes,thereforereproducibilitywithinagivenlaboratoryisusuallygoodbutdifferencesbetweenlaboratoriesaresometimesfound.
【中国标准分类号】:J33
【国际标准分类号】:25_160_40
【页数】:5P;A4
【正文语种】:英语


Product Code:SAE J2004
Title:Internal Combustion Engines-Piston Rings-Expander/Segment Oil Control Rings
Issuing Committee:Piston And Ring Standards Committee
Scope:This SAE Standard is equivalent to ISO Standard 6627 TR.Differences, where they exist, are shown in Appendix A with associated rationale.This SAE Standard specifies the dimensional features of commonly used oil control rings having two steel segments (rails) separated and expanded by one steel expander/spacer.The segments vary in width from 0.4 to 0.6 mm. The assembly width ranges from 2.5 to 4.75 mm. The 4.75 mm width is equivalent to existing 3/16 in applications. Expander design will vary considerably with piston ring manufacturer.The total circumferential deflection and the piston groove depth should be considered when designing these oil rings to optimize the fit of the ring assembly into the piston groove.This document applies to oil control rings up through 125 mm for reciprocating internal combustion engines. It may also be used for piston rings of compressors working under similar conditions.