(鋼) もの---drawingofwire rod(mattresswiresavailablethismethod)
Patentedspringwires:inthemiddleofwiresizes、orcold drawnspecleadhardeningandsurfacetreatmentanddrawing。
Galvanizedspringsteel ワイヤ: usuallyhot-galvanizingorplatingfinishedsize、alsousewirepicklinghot-風邪-drawnaftergalvanizingtotherequiredsize のディップします。
Oilhardenedspringsteel ワイヤ: demandcan に bemadeofcarbonsteeloralloy 鋼、surfacetreatmentsandquenchedandtemperedaftercolddrawingtoafinishedsize、この kindoftechnologyinautomotivesuspensioncoil springandvalvespringsteel wirewithmoreordinarySprings、もちろん、canalsobeused。
多数の afewmechanicalapproach を Surfacetreatment:commonlyusedpicklingandphosphorization、removalofironoxidetoformphosphatecoating。Aimwastomeettherequirementsofcold-drawnwire-drawingprocess、smoothsurfaceisobtained。におけるオースフォームドベイ ナイト wireforhighfatiguelife、このような asvalvespringsteel 線、鋼線 rodherein、reducingsurfacedefectsonsteelbilletgrinding、alsohelpreducedefects。
図面: finishedpullingthreaddrawingprocesshasagreatinfluenceontheproductproperties、generallyuselarger 面積比約 90% (seeareareductionrate) andlowpassareareduction (10-20%)、inordertoensurethetoughnessof の製品。高 strengthspringsteel ワイヤ、drawingforthecontrolofexportsofsteeltemperaturebelow150 ° c、preventingwirereverseduetostrainagingcrack、whichisamajorflawofsteelscrap。この理由は、drawingagoodlubricationisrequiredandsufficientcooling、smalllaneareareductionanddrawingspeedhelpsreducethewireand #39; の stemperaturerise。
熱治療: carbonsteelSpringwireleadhardeningprocess、cangetveryfinePearlite (ソルバイト) の fortheimprovementofdeepdrawingandspringpropertiesareuseful、patentingofthealternativeprocessoffluidized あのベッドで眠って notextended、onlyinsmalldiameterapplication。合金鋼 wireannealingheat treatmentisgenerallyusedtomakedrawingdeformationmicrostructureadapted。ステンレス steelwireheat treatmentsolutiontreatment、その他 whichistoimprovetheOrganizationtomeettheneedsofdrawing.Oilquenchingprocessusedonthewireusinginductionheatingorgas,fuel oilfurnace、いつか、anothermedium temperaturetemperingafterhardening heatingthewiretotheaustenitizingtemperatureinsulationfor。Althoughnominallycalledoil、basicallybywaterquenchingoraddpolymerwaterquenching。
