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Jarná oceľového drôtu proces

Oct 31, 2016

(Ocele) surfacetreatment---drawingofwire rod(mattresswiresavailablethismethod)

Patentedspringwires:inthemiddleofwiresizes, orcold-drawnspecleadhardeningandsurfacetreatmentanddrawing.

Galvanizedspringsteel drôt: usuallyhot-galvanizingorplatingfinishedsize, alsousewirepicklinghot-studený-drawnaftergalvanizingtotherequiredsize dip.

Oilhardenedspringsteel drôtu: na demandcan bemadeofcarbonsteeloralloy ocele, surfacetreatmentsandquenchedandtemperedaftercolddrawingtoafinishedsize, táto kindoftechnologyinautomotivesuspensioncoil springandvalvespringsteel wirewithmoreordinarySprings, samozrejme, canalsobeused.

Surfacetreatment:commonlyusedpicklingandphosphorization, removalofironoxidetoformphosphatecoating, tam sú afewmechanicalapproach. Aimwastomeettherequirementsofcold-drawnwire-drawingprocess, smoothsurfaceisobtained. Springsteel wireforhighfatiguelife, takáto asvalvespringsteel drôtu, oceľový drôt rodherein, reducingsurfacedefectsonsteelbilletgrinding, alsohelpreducedefects.

Kresba: finishedpullingthreaddrawingprocesshasagreatinfluenceontheproductproperties, generallyuselarger zníženie celkovej plochy cca 90% (seeareareductionrate) andlowpassareareduction (10% - 20%), inordertoensurethetoughnessof theproduct. Forhigh strengthspringsteel drôtu, drawingforthecontrolofexportsofsteeltemperaturebelow150 ° c, preventingwirereverseduetostrainagingcrack, whichisamajorflawofsteelscrap. Pre tento dôvod, drawingagoodlubricationisrequiredandsufficientcooling, smalllaneareareductionanddrawingspeedhelpsreducethewireand #39; stemperaturerise.

Teplo liečba: carbonsteelSpringwireleadhardeningprocess, cangetveryfinePearlite (sorbit) fortheimprovementofdeepdrawingandspringpropertiesareuseful, patentingofthealternativeprocessoffluidized-bedis notextended, onlyinsmalldiameterapplication. Alloysteel wireannealingheat treatmentisgenerallyusedtomakedrawingdeformationmicrostructureadapted. Nerezové steelwireheat treatmentsolutiontreatment, thepurposeof whichistoimprovetheOrganizationtomeettheneedsofdrawing.Oilquenchingprocessusedonthewireusinginductionheatingorgas,fuel oilfurnace, heatingthewiretotheaustenitizingtemperatureinsulationfor, niekedy, anothermedium-temperaturetemperingafterhardening. Althoughnominallycalledoil, basicallybywaterquenchingoraddpolymerwaterquenching.