欢迎来到天天文库
浏览记录
ID:2268090
大小:54.00 KB
页数:13页
时间:2017-11-15
《外文翻译--辊缝润滑工作辊冷却及反剥系统在热轧钢机上的协调应用》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、附录ACoordinatedApplicationofRollGapLubrication,WorkRollCoolingandAntipeelingSystemsinHotRollingMillsSurfacequalityrequirementsforhotrolledsteelsheethavecontinuedtobecomemorestringentinrecentyears.Thisfocusonsheetqualityhasdevelopedinparallelwithcorrespondingdemandsforincre
2、asedproductivityandreducedcostsatthemill.Althoughnotapanacea,rollgaplubricationsystemshavereceivedincreasedattentioninsupportoftheseobjectives.Specifically,rollgaplubricationsystemsareusedincombinationwithworkrollcoolingsystemsandantipeelingsystemsto:lReducerollingloadsan
3、dtherebyreducepotentialforchatter.lReducerollingtorquesandassociatedenergyrequirements.lEnableredistributionofloadsamongstandstoaddresschatterissues.lIncreasereductionstodecreasefinalstripthickness.lReducepotentialforrolled-inscale.lExtendrollingcampaignlength.Thesesystem
4、smustalsobedesignedandoperatedinamannerthatwill:lAssuregoodplatingoftheoilontotheworkrollsurface.lMaintainstabilityofmillcontrolsystems.lMinimizetheenvironmentalimpactofvaporemissionsandspentfluids.lPreventcloggingoffluidsupplylines.Theeffectiveimplementationofthesesystem
5、scanprovideenhancecontroloverthethermalandtribologicalconditionsintherollbitetoachieveobjectivesforproductqualityandmillproductivity.Thesesystemshaveundergonedevelopmentforanumberofyearsandarenowbeingimplementedandrefinedthroughouttheworld.OverviewofChatterandPeelingonRol
6、lSurfacesTheearlystandsofsteelhotfinishingmillsroutinelyoperateatrelativelyhighloadsandrelativelylowspeeds.Theseoperatingconditionsrepresentaveryaggressiveenvironmentformillworkrolls.Highloads,combinedwithotherfactors,cancontributetomillstandvibrationscommonlyknownaschatt
7、er.Thesevibrationproducecyclicloadingconditionsinthestand,whichcanproducevisiblemarksontherollsurface.Thesemarksarethentransferredtothesheet,producinganundesirablesurfacequality.Theeffectiveimplementationofrollgaplubricationtechnologycanmakeitpossibletoreduceand/orredistr
8、ibuteloadsinthemill,thusdecreasingoreliminatingchatter.Furthermore,thestripsurfacetemperaturesth
此文档下载收益归作者所有