简介：Instripsurfacequalityinspectionsystemsbasedonthemachinevisiondetectiontechnology,imagequalityisakeyfactoraffectingthefinaldetectionperformance.Compositeimagingmethods,suchasbrightanddarkfieldimagingorreflectionandtransmissionimaging,canrevealmoreinformationbyemphasizingdifferentimageaspects.Defectdetectionratesanddefectrecognitionaccuracycanbeimprovedbyintegratingandmatchinginformationfromdifferentimageacquisitionsettings.Practicalapplicationshowsthattransmissionandreflectioncompositeimagingcanimprovetheimagingqualityofpenetrativedefects,whtlebrightanddarkfieldcompositeimagingcanenhanceimagingofdefectssuchascolordeviationandstains.

简介：ThisstudyinvestigatesthepropertiesofBaosteelsteelslagandblastfurnace(BF)slaginordertodevelophigh-performancesteelslagandBFslagcompositeadmixturebyoptimizingthecompositemixingtechnique.BasedontheinvestigationofthestabilityofsteelslagpowderandtheperformanceofcementmortarindifferentmixingratiosanddifferentaddingamountsofsteelslagandBFslagcompositeadmixture,rationalmixingratiosandtheaddingamountrangeofsteelslagandBFslagcompositeadmixtureweredetermined.

简介：Inrecentyears,theconcernaboutenvironmentalprotectionisincreasingonaworldscale.MajormanufacturersofhomeappliancesandOAequipmenthaveintroducedso-called'greenprocurementschemes'forreducingenvironmentallyharmfulsubstancesinmanufacturingprocessandendproducts.Undersuchbackground,anewtypeofchromate-freeorganiccompositecoatedelectro-galvanizedsteelsheetwithhighconductivitywasdevelopedbyBaosteel,whichmeetstheEURoHSDirective(RestrictionoftheHazardousSubstances)andotherrelatedlawsandregulationsonenvironmentalsafety.Italsoprovidesexcellentsurfaceelectricalconductivity,corrosionresistance,fingerprintresistance,solventresistance,coatingadhesion,heatresistance,formabilityandotherspecialpropertiestomeetthedemandofmanufacture’sprocessofOAmachine.Comparedwithpreviouslydevelopedanti-fingerprintingcoatedelectro-galvanizedsteelsheet,thisnewlydevelopedproducthasagoodbalancebetweenhighcorrosionresistance(timeto5%whiterustinsaltspraytestis120hforflatpaneland72hforworkedpotion)andconductivity(surfaceelectro-resistivityinaccordancewithLOREASTislessthan0.1milliohm)duetothespecialdesignofcoating’sstructure.Besides,Italsoprovidesthepropertiesofgroundingandshieldingagainstelectromagneticwaves.Theevaluationofsurfaceperformancesofnewproductshowedthatitiscomparableorevenbetterthanthesimilarproducts.Currently,thenewlydevelopedproducthasbeencommercialized.Inthispaper,themajorpropertiesarediscussed,suchascorrosionresistance,surfaceelectricalconductivity,fingerprintresistance,solventresistance,coatingadhesion(ink/melaminealkydpaint),heatresistanceandformability.Furthermore,theapplicationisalsobrieflydescribed.

简介：Thisstudyanalyzesthefeasibilityofusingstainlesssteelelectricarcfurnace(EAF)slagascompositecementadmixtureandtheriskofleaching-outofheavymetals.TheresultsshowthatthestainlesssteelEAFslag,mainlymadeupofCa2SiO4,Ca3Mg(SiO4)2,someCr-containingmineralsandinsmallparticlesize,iseasilygroundandhascementitiousactivity.EAFslag,whenusedascementadmixture,canbeaddedwithamaximumpercentageof32%.ItcanmeetthestrengthrequirementsofthestandardP·C32.5cement.Whenthemixingpercentageisdecreasedto25%,thestrengthofthecementcanbeincreasedtothatofP·C42.5cement.Othermainqualityindexesofcompositecement,suchasthesettingtimeandstability,alsosatisfystandardrequirements.TheresultsalsoshowthatmostoftheheavymetalsinthestainlesssteelEAFslagexistinastablespeciation.TheconcentrationofheavymetalsthatleachoutfromthestainlesssteelEAFslagandthecompositecementproductsisfarlowerthanthestandardlimitofhazardouswastes.Themainheavymetal,chromium,existsaslesshazardoustrivalentchromium.Therefore,theriskofheavymetalsleachingoutfromthestainlesssteelEAFslagislow.Theinternalexposureindex(IRa)andtheexternalexposureindex(Iγ)ofthestainlesssteelEAFslagarebothlowerthan1.0,satisfyingthestandardrequirementsofthestatefortheradionuclidesofbuildingmaterials.Therefore,stainlesssteelEAFslagcanbesafelyusedasadmixturetoproducecompositecement.