(Çelik) surfacetreatment---drawingofwire rod(mattresswiresavailablethismethod)
Patentedspringwires:inthemiddleofwiresizes, orcold-drawnspecleadhardeningandsurfacetreatmentanddrawing.
Galvanizedspringsteel Tel: usuallyhot-galvanizingorplatingfinishedsize, alsousewirepicklinghot-soğuk-drawnaftergalvanizingtotherequiredsize daldırma.
Oilhardenedspringsteel Tel: demandcan bemadeofcarbonsteeloralloy çelik, surfacetreatmentsandquenchedandtemperedaftercolddrawingtoafinishedsize, bu kindoftechnologyinautomotivesuspensioncoil springandvalvespringsteel wirewithmoreordinarySprings, tabii ki, canalsobeused.
Surfacetreatment:commonlyusedpicklingandphosphorization, removalofironoxidetoformphosphatecoating; dışarda afewmechanicalapproach. Aimwastomeettherequirementsofcold-drawnwire-drawingprocess, smoothsurfaceisobtained. Springsteel wireforhighfatiguelife, böyle asvalvespringsteel tel, çelik tel rodherein, reducingsurfacedefectsonsteelbilletgrinding, alsohelpreducedefects.
Çizim: finishedpullingthreaddrawingprocesshasagreatinfluenceontheproductproperties, generallyuselarger toplam alanı azaltma % 90'ı (seeareareductionrate), andlowpassareareduction (% 10-%20), inordertoensurethetoughnessof değişkeni. Forhigh strengthspringsteel tel, drawingforthecontrolofexportsofsteeltemperaturebelow150 ° c, preventingwirereverseduetostrainagingcrack, whichisamajorflawofsteelscrap. Bu nedenle, drawingagoodlubricationisrequiredandsufficientcooling, smalllaneareareductionanddrawingspeedhelpsreducethewireand #39; stemperaturerise.
Isı tedavi: carbonsteelSpringwireleadhardeningprocess, fortheimprovementofdeepdrawingandspringpropertiesareuseful cangetveryfinePearlite (sorbite), patentingofthealternativeprocessoffluidized-Bediş notextended, onlyinsmalldiameterapplication. Alloysteel wireannealingheat treatmentisgenerallyusedtomakedrawingdeformationmicrostructureadapted. Paslanmaz steelwireheat treatmentsolutiontreatment, thepurposeof whichistoimprovetheOrganizationtomeettheneedsofdrawing.Oilquenchingprocessusedonthewireusinginductionheatingorgas,fuel oilfurnace, heatingthewiretotheaustenitizingtemperatureinsulationfor bir ara, anothermedium-temperaturetemperingafterhardening. Althoughnominallycalledoil, basicallybywaterquenchingoraddpolymerwaterquenching.
