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Mùa xuân thép quá trình

(Thép) surfacetreatment---drawingofwire rod(mattresswiresavailablethismethod)

Patentedspringwires:inthemiddleofwiresizes, orcold-drawnspecleadhardeningandsurfacetreatmentanddrawing.

Galvanizedspringsteel dây: usuallyhot-nhúng galvanizingorplatingfinishedsize, alsousewirepicklinghot-lạnh-drawnaftergalvanizingtotherequiredsize.

Oilhardenedspringsteel dây: ngày demandcan bemadeofcarbonsteeloralloy thép, surfacetreatmentsandquenchedandtemperedaftercolddrawingtoafinishedsize, này kindoftechnologyinautomotivesuspensioncoil springandvalvespringsteel wirewithmoreordinarySprings, tất nhiên, canalsobeused.

Surfacetreatment:commonlyusedpicklingandphosphorization, removalofironoxidetoformphosphatecoating; thereare afewmechanicalapproach. Aimwastomeettherequirementsofcold-drawnwire-drawingprocess, smoothsurfaceisobtained. Springsteel wireforhighfatiguelife, như asvalvespringsteel dây, dây thép rodherein, reducingsurfacedefectsonsteelbilletgrinding, alsohelpreducedefects.

Vẽ: finishedpullingthreaddrawingprocesshasagreatinfluenceontheproductproperties, generallyuselarger tổng diện tích giảm khoảng 90% (seeareareductionrate) andlowpassareareduction (10-20%), inordertoensurethetoughnessof theproduct. Forhigh strengthspringsteel dây, drawingforthecontrolofexportsofsteeltemperaturebelow150 ° c, preventingwirereverseduetostrainagingcrack, whichisamajorflawofsteelscrap. Đối với lý do này, drawingagoodlubricationisrequiredandsufficientcooling, smalllaneareareductionanddrawingspeedhelpsreducethewireand #39; stemperaturerise.

Nhiệt trị: carbonsteelSpringwireleadhardeningprocess, cangetveryfinePearlite (sorbite) fortheimprovementofdeepdrawingandspringpropertiesareuseful, patentingofthealternativeprocessoffluidized-bedis notextended, onlyinsmalldiameterapplication. Alloysteel wireannealingheat treatmentisgenerallyusedtomakedrawingdeformationmicrostructureadapted. Không gỉ steelwireheat treatmentsolutiontreatment, thepurposeof whichistoimprovetheOrganizationtomeettheneedsofdrawing.Oilquenchingprocessusedonthewireusinginductionheatingorgas,fuel oilfurnace, heatingthewiretotheaustenitizingtemperatureinsulationfor, đôi khi, anothermedium-temperaturetemperingafterhardening. Althoughnominallycalledoil, basicallybywaterquenchingoraddpolymerwaterquenching.