减量化船板钢柔性轧制技术试验研究

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1、AbstractFlexiblerollingtechnologywhichCallnotonlysaveenergy，simplifyproductionoperation，butalsoreduceproductioncostgreatlyisoriginatedfromTMCP(Themo-MechanicalControlProcess)．Withthedevelopmentofthistechnologyinresearchandindustrialapplication，ithasbeen

2、attractedwideattentioninsteelindustryathomeandabroad．TheexperimentswerecarriedoutbasedonC·MnsteelwithoutaddinganymicroalloyelementsuchasNi、V、Ti，combined、)l，iththeproject‘'NewManufacturingTechnologyonShipPlatebyReducingResourceswithFlexibleRolling'’withS

3、anmingSteelinthispaper．Inthelabwestudyonthee位ctsofcontrolledrollingandcoolingprocessonmicrostructureandmechanicalpropertieswitlldifferentcarbonequivalentandintheendwedeterminedtheflexiblerollingprocesssystem．ThecontentsandconclusionWassummarizedasfollow

4、s：(1)Usingthreedifferentrollingprocessesinthelab，theexperimentalresultsoftheteststeelareshowedthat：inthesameprocess．theefjf．ectofcarbonequivalentisthemainfactorsforthemechanicalproperties．Withtheincreasingofcarbonequivalentthestrengthperformanceofthetes

5、tedsteelgetbetter，buttheplasticityandtoughnessgetworse．Consideringvariousfactors，thereasonablechemicalcompositionandcarbonequivalentaredeterminedwhichprovidethebasisforindustrializationofeconomizingshipplate；(2)WiththeTMCPprocessesoftheindustrybilletint

6、helab，thedeformation,temperatureandcoolingsystemwerestudiedonrespectively．Itconcludedthatcoolingintheairconditionaftercontrolledrolling，thegrainsizeismorecoarserandtheplateshowedworsecomprehensivepropertiesthanthatofcontrolledcooling．Withtheincreasingof

7、theintermediateslabthicknessthetensileandtheimpactpropertiesgetbetterandthetestedsteelshowthesameperformancewiththedecreasingoffinishtemperament．IntheendwedeterminedtherollingprocessofA32，D32highstrengthshipplate．Thestartingtemperatureoffinishingrolling

8、wasat850--+IO。C，thethicknessofintermediateslabwastwotothreetimesthanproductplate，laminarcoolingsystemWasemployedatthespeedof10～15℃／safterrollingandthefinalcoolingtemperatureshouldbeat670士10℃：(3)Referingtotheresultsofthelabexperim