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

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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