国产Φ280mm十一辊高钢级精密钢管矫直机组.pdf

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1、国产280ram十一辊Ej同钢级精密钢管矫直机组陈杨博，梅德林2，王忠书，张超，黄维勇(1．中国重型机械研究院股份公司，西安710032；)2．江苏恒立高压油缸股份有限公司，江苏常州213619；)3．中铝西北铝加工分公司，甘肃陇西748111)摘要：我国自行开发的精密管材矫直机适用管材规格范围不断扩大(咖3-4,220mm)，但被矫管材的屈服强度均小于650MPa。难以适应新近市场急需的高钢级精密管材高效矫直的要求。针对这一问题，开发了280mm十一辊高钢级精密钢管矫直机。该矫直机组为离线设备，用于退火之后或者不经退火的冷轧、冷拔钢管

2、的矫直，被矫管材屈服强度达到850MPa，矫后管材直线度小于0．25mm／m．矫直盲区控制在400mlTI以内。近两年生产实践表明，针对高钢级、大直径精密矫直工艺中的敏感因素，采用辊式多环节矫直的设备方案是可行的。同时对机组传动系统、前台C形套内衬材料、换辊机构及矫直辊喷淋系统存在的问题提出了改进方向。关键词：钢管：矫直机；斜辊中图分类号：TG333．23文献标志码：B文章编号：1001—3938(2013)08—0005—36西280mmEleven-rollerHighGradePrecisionSteelTubeStraighte

3、ningMachineinChinaDomesticCHENFeng，YANGBo，MEIDelin，WANGZhongshu，ZHANGChao，HUANGWeiyong(1．ChinaNotionalHeavyMachineryResearchInstituteCo．，Ltd．，Xi’710032，China；(2．．~angsuHengtiHPressureOilCylinderCo．，Ltd．，ChangZhou213167，Jiangsu，China；3．ChinaAluminumNorthwestAluminumProces

4、sCompany，Longxi748111，Gartsu，China)Abstract：Theapplicablespecificationsscopeofprecisionsteeltubestraighteningmachinecontinuouslyextends(from击3mmto西220mm)，buttheyieldstrengthofstraightenedtubeislessthan650MPa，SOthestraighteningmachineisdificulttoadapttotherequirementsofcu

5、rrentlygoodmarketneedsinthehighgradeprecisionsteeltube．Basedonthisreason，the280milleleven—rollerhighgradeprecisionsteeltubestraighteningmachinewasdeveloped．Thestraighteningmachineisofiinefacility，whichisusedtorannealingorcoldrollingwithoutannealing，andcolddrawnsteeltubes

6、traightening，theyieldstrengthofstraightenedtu1)ereaches850MPa，thestraightnessislessthan0．25mm／mafterstraightening，andstraighteningblindareaiscontrolledwithin400iYlm．Therecenttwoyearsproductionpracticeprovedthataimingatthesensitivityfactorsofhighgradelargediameterprecisio

7、nstraighteningprocess，adoptingtherollmodeandmanylinksstraighteningproposalisfeasible．Simultaneously，itputforwardimprovementdirectionfortheexistedproblems，suchasthedrivesystem，theliningmaterialsforthefrontdeskCshapeset，rollchangingmechanism，andthestraighteningrollersprays

8、ystem．Keywords：steelpipe；straighteningmachine；obliqueroller陈峰等：国产280mm十一辊高钢级精密钢管矫直机组0前言设备上通过两次以上矫直过程来模拟