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低碳低硅铝镇静钢SPHC纵裂影响因素分析及控制 Title:AnalysisandControlofFactorsInfluencingLongitudinalCrackinginLowCarbonLowSiliconAluminum-KilledSteelSPHC Abstract: Theaimofthisstudyistoanalyzeandcontrolthefactorsinfluencinglongitudinalcrackinginlowcarbonlowsiliconaluminum-killedsteelSPHC.Longitudinalcrackingisacommonproblemfacedinthemanufacturingprocessofsteel,asitnegativelyaffectsthequalityandintegrityofthefinalproduct.Throughliteraturereview,dataanalysis,andexperimentation,thispaperidentifiesthekeyfactorscontributingtolongitudinalcrackinginSPHCandproposeseffectivecontrolmeasuresforthepreventionofcracking. 1.Introduction 1.1Background 1.2Objectives 1.3Scope 2.LiteratureReview 2.1OverviewofLowCarbonLowSiliconAluminum-KilledSteelSPHC 2.2PreviousResearchonLongitudinalCrackinginSteel 2.3CurrentUnderstandingofFactorsInfluencingLongitudinalCracking 3.AnalysisofFactorsInfluencingLongitudinalCrackinginSPHC 3.1ChemicalCompositionofSPHC 3.2TemperatureandHeatTreatment 3.3MechanicalProperties 3.4CoolingRate 3.5SurfaceConditions 3.6ProductionProcess 4.ExperimentalAnalysis 4.1SamplePreparation 4.2TestingMethods 4.3DataAnalysis 5.ResultsandDiscussion 5.1AnalysisofExperimentalData 5.2IdentificationofKeyFactors 5.3RelationshipbetweenFactorsandCracking 6.ControlMeasuresforLongitudinalCracking 6.1OptimizationofChemicalComposition 6.2HeatTreatmentProcess 6.3CoolingProcess 6.4SurfaceTreatment 6.5ProcessImprovements 7.Conclusion 7.1SummaryofFindings 7.2ImplementationofControlMeasures 7.3FutureResearchDirection References Thispaperwillcomprehensivelyanalyzethefactorsinfluencinglongitudinalcrackinginlowcarbonlowsiliconaluminum-killedsteelSPHC.Itwillstartwithaliteraturereviewtoprovideabackgroundonthetopicandtounderstandthecurrentunderstandingofthefactorsinfluencinglongitudinalcrackinginsteel.ThechemicalcompositionofSPHC,temperatureandheattreatment,mechanicalproperties,coolingrate,surfaceconditions,andproductionprocesswillbeanalyzedtoidentifythekeyfactorscontributingtocracking. Experimentalanalysiswillbeconduc