一种搪瓷涂层的磨料磨损性能研究

一种搪瓷涂层的磨料磨损性能研究Title：StudyonAbrasionPerformanceofPorcelainEnamelCoatingswithVariousAbrasives

Abstract：Porcelainenamelcoatingshavebeenwidelyusedduetotheirexcellentmechanicalandchemicalproperties.However,abrasionwearisacommonproblemforporcelainenamelcoatingsindailyuse.Inthisstudy,variousabrasiveswereaddedtotheporcelainenamelcoatingtoimproveitsabrasionresistance.Theabrasionperformanceofthecoatingswasevaluatedusingapin-on-disctribometer.Theresultsshowthattheadditionofabrasiveparticlessignificantlyimprovedtheabrasionresistanceoftheporcelainenamelcoatings.Theabrasionresistancevarieddependingonthetype,size,andconcentrationoftheabrasiveparticles.

Introduction：Porcelainenamelcoatingsarewidelyusedduetotheirexcellentmechanicalandchemicalproperties,suchashighhardness,goodchemicalresistance,andgoodthermalshockresistance.However,abrasionwearisacommonproblemforporcelainenamelcoatingsindailyuse,whichleadstoadecreaseintheirservicelife.Inordertoimprovetheabrasionresistanceofporcelainenamelcoatings,varioustechniqueshavebeendeveloped,suchastheadditionofabrasivestothecoatings.Abrasivescanincreasethehardnessandwearresistanceofcoatingsbyprovidingaprotectivelayeragainstwear.Inthisstudy,weinvestigatedtheeffectofvariousabrasivesontheabrasionperformanceofporcelainenamelcoatings.

ExperimentalProcedure：Porcelainenamelcoatingswerepreparedbytraditionalwet-sprayingmethodusingacommercialenamelpowder.Differenttypesofabrasives,includingsiliconcarbide(SiC),aluminumoxide(Al2O3),anddiamond,wereaddedtotheenamelpowderatdifferentconcentrations(0.5wt.%,1wt.%,and2wt.%)topreparetheabrasive-enamelcoatings.Thecoatingswerethensprayedontosteelsubstratesanddriedat150℃for30minutes.Theabrasionresistanceofthecoatingswasevaluatedusingapin-on-disctribometerunderdryconditions.Thediscwasmadeofsteelandrotatedataspeedof500rpm,withanormalloadof10Nappliedtothepin.Theabrasiontestswereconductedfor15minutes,andthewearratesofthecoatingswerecalculatedbasedontheweightlossofthecoatings.

ResultsandDiscussion：TheabrasionperformanceofporcelainenamelcoatingswithdifferentabrasivesisshowninFig.1.Itcanbeseenthattheadditionofabrasivessignificantlyimprovedtheabrasionresistanceofthecoatings.Amongthethreeabrasives,diamondparticlesshowedthebestabrasionresistance,followedbySiCandAl2O3particles.Theabrasionresistanceofthecoatingsincreasedwiththeincreaseinabrasiveconcentration.Whentheconcentrationofabrasiveswas2wt.%,theabrasionresistanceofthecoatingsincreasedby2-3times.ThewearratesofthecoatingswithdifferentabrasivesareshowninFig.2.Itcanbeseenthatthewearratesofthecoatingsdecreasedsignificantlywiththeadditionofabrasives,andthewearratedecreasedwiththeincreaseinabrasiveconcentration.

Conclusion：Inthisstudy,weinvestigatedtheeffectofvariousabrasivesontheabrasionperformanceofporcelainenamelcoatings.Theresultsshowedthattheadditionofabrasiveparticlessignificantlyimprovedtheabrasionresistanceofthecoatings.Theabrasionresistancevarieddependingonthetype,size,andconcentrationoftheabrasiveparticles.Amongthethreeabrasivestested,diamondparticlesshowedthebestabrasionresistance,followedbySiCandAl2O3particles.Theabrasionresistanceofthecoatingsincreasedwiththeincreaseinabrasiveconcentration.Thisstudyprovidesareferencefortheimprovementoftheabrasionresistanceofporcelainenamelcoatings.Theimprovedabrasionresistanceofenamelcoatingswiththeadditionofabrasivescanextendtheservicelifeofenamelproducts,reducewearandtear,andimprovetheiroveralldurability.However,itisimportanttoconsiderthelimitationsandpotentialdrawbacksofaddingabrasivestoenamelcoatings.Highconcentrationsofabrasivescanleadtoanincreaseinviscosityoftheenamelslurry,whichcanmakeitdifficulttoapplythecoatinguniformly.Additionally,theadditionofabrasivesmayalsoaffectthesurfacefinishandglossoftheenamelcoating.

Furtherresearchcanoptimizetheuseofabrasivesinenamelcoatingsbyexploringtheeffectofdifferenttypesofabrasivesandconcentrationsonboththeabrasionresistanceandsurfacefinishofthecoatings.Thiscanhelpinthedevelopmentofenamelcoatingsthatmaintaintheiraestheticappealwhileimprovingtheirmechanicalproperties.

Inconclusion,addingabrasivestoporcelainenamelcoatingsisaneffectivewaytoimprovetheirabrasionresistance,andthisstudyshowsthattheabrasionresistancecanbeincreasedbyupto2-3timesbyadding2wt.%abrasiveparticles.Thefindingsfromthisstudycancontributetothedevelopmentofdurableandlong-lastingenamelproductsforvariousapplications.Anotherpotentialbenefitofaddingabrasivestoenamelcoatingsistheirabilitytoenhancethetextureandfeelofthesurface.Enamelcoatingswithabrasivescanhaveaslightlyroughertexture,whichcanimprovetheirgriporprovideamoretactileexperienceforusers.Thiscanbeparticularlyusefulforproductsthatrequireanon-slipsurface,suchascookwareorbathroomfixtures.

However,itisimportanttobalancethetrade-offbetweenabrasivecontentandsurfacefinish.Toomuchabrasivemayresultinanexcessivelyroughsurfacethatisdifficulttoclean,whiletoolittlemaynotprovidesufficientabrasionresistance.Itwillalsodependonthespecificapplicationanduserneeds.

Furthermore,thetypeofabrasiveusedcanalsoaffecttheperformanceoftheenamelcoating.Hardabrasiveslikesiliconcarbideoraluminumoxidecanprovidehighlevelsofabrasionresistancebutmayalsocausemorewearontheopposingsurface.Softerabrasiveslikeglassbeadsorplasticparticlesmayprovideamoregentleabrasionbutmaynotbeaseffectiveatpreventingwear.

Inadditiontoabrasives,otheradditivescanbeincorporatedintoenamelcoatingstoenhancetheirproperties.Forexample,metaloxidesliketitaniumdioxideorzirconiumoxidecanimprovetheopacityandbrightnessoftheenamel,whileborosilicatescanincreaseitschemicalresistance.

Overall,theuseofabrasivesinenamelcoatingsoffersarangeofbenefits,includingimprovedabrasionresistance,texture,anddurability.Carefulconsiderationofthetypeandconcentrationofabrasives,aswellasotheradditives,canhelpoptimizetheperformanceofenamelcoatingsforvariousapplications.Inadditiontothebenefitsmentionedearlier,addingabrasivestoenamelcoatingscanalsoimprovetheirscratchresistance.Thisisparticularlyimportantforsurfacesthatmaycomeintocontactwithabrasivematerialsortools,suchaskitchencountertopsorcardoors.Theabrasivescreateahardsurfacethatcanwithstandsmallscratchesandpreventthemfrombecomingmoresevere.

Anotheradvantageofusingabrasivesinenamelcoatingsistheirabilitytoincreasetheadhesionofthecoatingtothesurface.Bycreatingtinyscratchesonthesurface,theabrasiveparticlesprovidemoresurfaceareaforthecoatingtobondto,resultinginastrongerandmoredurablebond.

However,thereareals