روند سیم بهار

Surfacetreatment (فولاد)---drawingofwire rod(mattresswiresavailablethismethod)

Patentedspringwires:inthemiddleofwiresizes orcold drawnspecleadhardeningandsurfacetreatmentanddrawing.

Galvanizedspringsteel سیم: usuallyhot-galvanizingorplatingfinishedsize alsousewirepicklinghot سرد drawnaftergalvanizingtotherequiredsize شیب.

Oilhardenedspringsteel سیم: فولاد bemadeofcarbonsteeloralloy در demandcan, surfacetreatmentsandquenchedandtemperedaftercolddrawingtoafinishedsize, این kindoftechnologyinautomotivesuspensioncoil springandvalvespringsteel wirewithmoreordinarySprings، البته، canalsobeused.

Surfacetreatment:commonlyusedpicklingandphosphorization, removalofironoxidetoformphosphatecoating; thereare afewmechanicalapproach. Aimwastomeettherequirementsofcold-drawnwire-drawingprocess smoothsurfaceisobtained. Springsteel wireforhighfatiguelife جمله asvalvespringsteel سیم، سیم rodherein، reducingsurfacedefectsonsteelbilletgrinding، alsohelpreducedefects.

طراحی: finishedpullingthreaddrawingprocesshasagreatinfluenceontheproductproperties، generallyuselarger کاهش مساحت حدود 90% (seeareareductionrate) andlowpassareareduction (10-20%)، inordertoensurethetoughnessof theproduct. Forhigh strengthspringsteel سیم drawingforthecontrolofexportsofsteeltemperaturebelow150 درجه سانتیگراد preventingwirereverseduetostrainagingcrack, whichisamajorflawofsteelscrap. برای این دلیل, drawingagoodlubricationisrequiredandsufficientcooling, smalllaneareareductionanddrawingspeedhelpsreducethewireand #39؛ stemperaturerise.

حرارت درمان: carbonsteelSpringwireleadhardeningprocess cangetveryfinePearlite (sorbite) fortheimprovementofdeepdrawingandspringpropertiesareuseful patentingofthealternativeprocessoffluidized bedis notextended، onlyinsmalldiameterapplication. Alloysteel wireannealingheat treatmentisgenerallyusedtomakedrawingdeformationmicrostructureadapted. ضد زنگ steelwireheat treatmentsolutiontreatment thepurposeof whichistoimprovetheOrganizationtomeettheneedsofdrawing.Oilquenchingprocessusedonthewireusinginductionheatingorgas,fuel oilfurnace، heatingthewiretotheaustenitizingtemperatureinsulationfor anothermedium temperaturetemperingafterhardening، گاهی اوقات. Althoughnominallycalledoil basicallybywaterquenchingoraddpolymerwaterquenching.