(Plieno) surfacetreatment---drawingofwire rod(mattresswiresavailablethismethod)
Patentedspringwires:inthemiddleofwiresizes, orcold-drawnspecleadhardeningandsurfacetreatmentanddrawing.
Galvanizedspringsteel. vielos: usuallyhot-kritimo galvanizingorplatingfinishedsize, alsousewirepicklinghot-šaldymo-drawnaftergalvanizingtotherequiredsize.
Oilhardenedspringsteel vielos: dėl demandcan bemadeofcarbonsteeloralloy plieno, surfacetreatmentsandquenchedandtemperedaftercolddrawingtoafinishedsize, šis kindoftechnologyinautomotivesuspensioncoil springandvalvespringsteel wirewithmoreordinarySprings, žinoma, canalsobeused.
Surfacetreatment:commonlyusedpicklingandphosphorization, removalofironoxidetoformphosphatecoating, aprūpina afewmechanicalapproach. Aimwastomeettherequirementsofcold-drawnwire-drawingprocess, smoothsurfaceisobtained. Springsteel wireforhighfatiguelife, tokia asvalvespringsteel viela, plieninės vielos rodherein, reducingsurfacedefectsonsteelbilletgrinding, alsohelpreducedefects.
Brėžinys: finishedpullingthreaddrawingprocesshasagreatinfluenceontheproductproperties, generallyuselarger bendras plotas sumažėja apie 90 % (seeareareductionrate) andlowpassareareduction (10-20 %), inordertoensurethetoughnessof theproduct. VadoveAukštos strengthspringsteel vielos, drawingforthecontrolofexportsofsteeltemperaturebelow150 ° c, preventingwirereverseduetostrainagingcrack, whichisamajorflawofsteelscrap. Dėl šios priežasties, drawingagoodlubricationisrequiredandsufficientcooling, smalllaneareareductionanddrawingspeedhelpsreducethewireand #39; stemperaturerise.
Šilumos gydymas: carbonsteelSpringwireleadhardeningprocess, cangetveryfinePearlite (sorbitas) fortheimprovementofdeepdrawingandspringpropertiesareuseful, patentingofthealternativeprocessoffluidized-bedis notextended, onlyinsmalldiameterapplication. Alloysteel wireannealingheat treatmentisgenerallyusedtomakedrawingdeformationmicrostructureadapted. Nerūdijančio plieno steelwireheat treatmentsolutiontreatment, thepurposeof whichistoimprovetheOrganizationtomeettheneedsofdrawing.Oilquenchingprocessusedonthewireusinginductionheatingorgas,fuel oilfurnace, heatingthewiretotheaustenitizingtemperatureinsulationfor, kartais, anothermedium-temperaturetemperingafterhardening. Althoughnominallycalledoil, basicallybywaterquenchingoraddpolymerwaterquenching.
