简介：AfterexpandingthecapacitybywideningthetrolleyoftheNo.3sinteringmachine,severeunevensinteringoccurredinthetrolley’slateraldistribution,whichaffectedtheoutputandqualityofsinter.Inthisstudy,thequantitativeevaluationindicesoftheburdenuniformdistributioninthewidthdirectionofthesinteringmachineisintroducedforthefirsttime.Bymeasuringthetemperatureofdischargedgas,aplanetemperaturefieldisconstructed.Throughanalyzingthetemperaturefieldandtheburdenlayer’sdifferentialthermalequilibrium,amathematicalmodelforevaluatingtheindices,whichisanonlinereflectionofthedegreeofuniformdistribution,isbuilt.Followingtheimprovementsinburdendistributionequipment,theoptimizationoftheignitionsystemandthedynamicadjustmentoftheprocess,theproblemofunevensinteringinlateraldistributionhasbeensolved,andthequalityandtheyieldofsinterhavebeenimproved.

简介：Temperatureevolutionofaworkingpieceduringhotrollinghasasignificantinfluenceonthemicrostructureandfinalmechanicalpropertiesofthematerial.Asthemeasurementtechnologiesimprove,on-linemeasurementofthetemperatureacrossthestripwidthhasbecomeaccessible,andthusmonitoringandcontrolofthetransversaltemperaturedistributionduringhotrollingcanberealized.Thescanningofthetemperatureacrossthestripwidthcanhelpustounderstandthestateofthetemperaturevariationatthestripedgesandasaresulthelpusimprovethetemperaturehomogeneityofthestrip.Inthispaper,reaearchontemperaturedistributionalongthestripwidthisreviewedfirst,andthenthemechanismofthescanningmeasuringdevicesisintroduced.Withthetemperaturescanningmeasurementdatatakenfromthefinishingmillentrypointandthedowncoilerentrypoint,thetemperaturedistributionatthestripedgesisanalyzed.Itispointedoutthattheroughingprocessisthemaincontributortothetemperatureinhomogeneity.Furthermore,thecontributionoftheedgerheatertothetemperaturehomogeneityisinvestigated.

简介：Throughsamplingfromdifferentdepthanddifferentzonesinthezincbath,thesizedistributionofdrossparticlesbuiltduringgalvannealed(GA)productionisanalyzedandcomparedwiththatduringgalvanized(GI)production.TherelationshipbetweenthedrossformationduringtransitionsfromGAtoGIandtheeffectiveAlofthemeltisdiscussed.Finally,thecharacteristicsofdrossparticlesinGAcoatinganditseffectsonGApunchingandpaintingperformancesarestudied.

简介：Thedistributionofreducinggasinashaftfurnacedominatesthetemperatureprofile,gasutilizationratio,metallizationdegreeandistheoverwhelmingfactorforstable,highproductivitiesandlow-energy-consumptionoperation.Atthesametime,thedistributionofgasflowismainlydeterminedbythepositionofgasinlet,thepackedbedporositydistributionaswellasitschangeduetothedifferenceonthemodeoftopchargeandbottomdischarge.Wheninjectingpositionoftheprocessisfixed,thechargemodeistheonlymeansforregulatingthegasflowdistribution.Inthispaper,anumericalsimulationmodelofburdendistributionintheshaftfurnaceofCOREX3000hasbeendevelopedtoanalyzetheporositydistributionunderthedifferentchargemodesbymeansofDiscreteElementMethod(DEM).Theeffectsoftheparticlesizeanditsdistributionunderconditionsofdifferentchargebatches,chuteangle,stokelineontheburdensurfaceshapeandburdenbedparticlesizedistributionandsegregationwereinvestigated,andthentheporositydistributionintheshaftofcorrespondingchargingpatternwasquantitativelyaccessed.Therefore,theresultscanbeusedtooptimizethechargepatternsbaseonrequiredgasdistribution.