【英文标准名称】:ISOgeneralpurposemetricscrewthreads-Tolerances-Part5:Limitsofsizesforinternalscrewthreadstomatewithhot-dipgalvanizedexternalscrewthreadswithmaximumsizeoftolerancepositionhbeforegalvanizing
【原文标准名称】:ISO一般用途米制螺纹公差第5部分:与镀锌前公差带位置为h最大尺寸的热沉镀锌外螺纹相配的内螺纹的极限尺寸
【标准号】:ISO965-5-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-12
【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/TC1
【标准类型】:()
【标准水平】:()
【中文主题词】:热镀锌的;ISO米制螺纹;内螺纹;ISO螺纹;公差(测量);尺寸;螺纹;极限尺寸
【英文主题词】:Corediameter;Dimensions;Hot-galvanized;Internalthreads;ISOmetricthreads;ISOscrewthreads;Limitdimensions;Outsidediameters;Pitchdiameter;Threads;Tolerances(measurement)
【摘要】:ThispartofISO965specifiesdeviationsandlimitsofsizesforpitchandcrestdiametersforISOgeneralpurposemetricinternalscrewthreadsconformingtoISO262havingbasicprofileaccordingtoISO68-1.InternalscrewthreadsaccordingtothispartofISO965areintendedtomatewithexternalscrewthreadswithmaximumsizeoftolerancepositionhbeforehot-dipgalvanizing.ThelimitsofsizesforthetolerancequalityspecifiedarederivedfromtolerancesspecifiedinISO965-1.ThefundamentaldeviationsforinternalscrewthreadswithatolerancepositionAZhavebeencalculatedaccordingtothefollowingformula:ElAZ=+(300+20P)whereEIisexpressedinmicrometres;Pisexpressedinmillimetres.ThefundamentaldeviationsforinternalscrewthreadswithatolerancepositionAXhavebeencalculatedaccordingtothefollowingformula:ElAX=+{220P-20)whereEIisexpressedinmicrometres;Pisexpressedinmillimetres.ProductsmadewiththreadtolerancesaccordingtothispartofISO965mayshowloadfailurewhentestedinaccordancewithISO898-2withoutadjustmentoftheothermechanicalproperties.InternalscrewthreadswiththreadtolerancesaccordingtothispartofISO965mustnotbematedwithexternalscrewthreadshavingthreadtolerancesaccordingtoISO965-4becausesuchcombinationswillcreatesevereriskofthreadstripping.NOTEInternalscrewthreadswithtoleranceclass6AZareprimarilyintendedtomatewithexternalscrewthreadscentrifugedafterhot-dipgalvanizing.Internalscrewthreadswithtoleranceclass6AXareprimarilyintendedtomatewithhot-dipgalvanizedexternalscrewthreadswithheavycoatingnotcentrifuged.
【中国标准分类号】:J04
【国际标准分类号】:21_040_10
【页数】:5P.;A4
【正文语种】:英语