(스틸) surfacetreatment---drawingofwire rod(mattresswiresavailablethismethod)
Patentedspringwires:inthemiddleofwiresizes, orcold-drawnspecleadhardeningandsurfacetreatmentanddrawing
Galvanizedspringsteel 와이어: usuallyhot-galvanizingorplatingfinishedsize, alsousewirepicklinghot-감기-drawnaftergalvanizingtotherequiredsize를 찍어.
Oilhardenedspringsteel 와이어: demandcan, bemadeofcarbonsteeloralloy, surfacetreatmentsandquenchedandtemperedaftercolddrawingtoafinishedsize,이 kindoftechnologyinautomotivesuspensioncoil springandvalvespringsteel wirewithmoreordinarySprings, 물론, canalsobeused.
Surfacetreatment:commonlyusedpicklingandphosphorization, removalofironoxidetoformphosphatecoating; thereare afewmechanicalapproach입니다. Aimwastomeettherequirementsofcold-drawnwire-drawingprocess, smoothsurfaceisobtained입니다. Springsteel wireforhighfatiguelife, 같은 asvalvespringsteel 와이어, 강철 와이어 rodherein, reducingsurfacedefectsonsteelbilletgrinding, alsohelpreducedefects.
드로잉: finishedpullingthreaddrawingprocesshasagreatinfluenceontheproductproperties, generallyuselarger 총 면적 감소의 약 90% (seeareareductionrate) andlowpassareareduction (10%-20%), inordertoensurethetoughnessof theproduct. 높은 strengthspringsteel 와이어, drawingforthecontrolofexportsofsteeltemperaturebelow150 ° c, preventingwirereverseduetostrainagingcrack, whichisamajorflawofsteelscrap. 이 이유, drawingagoodlubricationisrequiredandsufficientcooling, smalllaneareareductionanddrawingspeedhelpsreducethewireand #39; stemperaturerise.
열 처리: carbonsteelSpringwireleadhardeningprocess, cangetveryfinePearlite (sorbite) fortheimprovementofdeepdrawingandspringpropertiesareuseful, patentingofthealternativeprocessoffluidized-bedis notextended, onlyinsmalldiameterapplication. Alloysteel wireannealingheat treatmentisgenerallyusedtomakedrawingdeformationmicrostructureadapted입니다. 스테인리스 steelwireheat treatmentsolutiontreatment, thepurposeof whichistoimprovetheOrganizationtomeettheneedsofdrawing.Oilquenchingprocessusedonthewireusinginductionheatingorgas,fuel oilfurnace, heatingthewiretotheaustenitizingtemperatureinsulationfor, anothermedium-temperaturetemperingafterhardening 언젠가. Althoughnominallycalledoil, basicallybywaterquenchingoraddpolymerwaterquenching
