大型厚壁锥体成形和端部削薄技术

大型厚壁锥体成形和端部削薄技术:介绍了特大型厚壁锥体的成形和端部削薄技术采用三瓣拼制方法成形,即分瓣下料后在水压机上压制成瓜片,再组焊成锥体同时用火焰切割方法代替机加工进行端部削薄该技术的应用成功解决了20万吨/年聚乙烯反应器国产化制造:大型锥体;成形;削薄过渡段;火焰切割:TQ0503:B:1001-4837(2002)05-0022-02FormingandTaperingofLarge-SizedConicalSectionwithThickWallSinopecNanjingChemical,ChemicalMachineryWorksPEIFengWANGGaLIUFuhuaAbstract:Theformingandtaperingtechniquesforlarge-sizedconicalsectionwiththickwallwereintroucedinthispaper.Theconicalwasfabricatedby3pcs.pressingindividualbyhydraulic-press,thenfittingandweldingintothewhole,andflamegougingtapersthetransitionsection.Thetechniqueswaskeytopolyethylenereactorhomemade.Keywords:conicalsection;forming;taperedtransition;flamegouging190,15/,,,,OFFINCE,,(7872mm,82mm),220/(1),,,11(mm)7872687921937982689259542044707359545029204470731,,,,40mm,82mm(13),,,JB4732,!22!20011331下料,,,2,Rr,(),,23.2压制瓜片,2500,(),,,,3.3组焊成形,,44.1削薄方法的选择JB4732,,,6.5m,8m,,;,,4.2主要技术难点和解决方法SA516Gr70,,70Psi,,:1),(),,,,,2),,,,,,,,100,,,,,,:2002-02-19:,,1971,,,:1,:210006!23!195114