螺纹代号、标准.doc

=> 螺纹资料-包括公制、美制、英制、直管螺纹、锥管螺纹 螺纹代号Threadsymbol螺纹Thread参考标准ReferenceStandard牙型角ThreadAngleM公制螺纹粗牙系列CoarseseriesISO68GB19660°Metricscrewthreads细牙系列FineseriesISO724GB196S小螺纹MiniaturescrewthreadsISO1501GB/-FineseriesUNS特殊直径、螺距、衔接长度系列Specialdiameter/pitchlengthofengagmentandUN等螺距系列Constant-pitchseriesTr公制梯形螺纹MetrictrapezoidalscrewthreadsISO2904GB579630°TM30梯形螺纹30trapezoidalscrewthreadsR螺纹密封的管螺纹Pipethreadswherepressure-tightjointsaremadeonthethreads锥管内螺纹TaperexternalscrewthreadsISO/R7GB730655°1/16TaperRc锥管外螺纹TaperinternalscrewthreadsRP直管螺纹Parallelinternalpipethreads55°G非螺纹密封的管螺纹Pipethreadswherepressure-tightjointsarenotmadeonthethreadsISO/eneraluseANSI/°1/16TaperNPSC美标直管接头螺纹AmericanStandardsstriaghtpipethreadsinpipecouplingANSI/°NPSM美标直管机用自由配合接头联接螺纹AmericanStandardsstriaghtpipethreadsforfree-fittingmechanicaljointsforfixtures °1/16TaperNPSF美标锥管气密螺纹DrysealAmericanstandardstaperpipethreads60°BA英标联接螺纹BritishassociationthreadsBS9347°30〃BSC英标自行车螺纹BritishstandardscyclethreadsBS81160°BSW英标惠氏螺纹BritishstandardsWhitworththreadsBS8455°hreadsBSMO英标显微镜螺纹BritishstandardsmicroscopeobjectivethreadsBS3569FG(德国)自行车螺纹(Germany)CyclethreadsDIN7901360°Pg(德国)薄钢管螺纹(Germany)SteelconduitthreadsDIN4043080°      *以上技术