(Χάλυβας) επιÔανειακή---drawingofwire rod(mattresswiresavailablethismethod)
Patentedspringwires:inthemiddleofwiresizes, orcold-drawnspecleadhardeningandsurfacetreatmentanddrawing.
Galvanizedspringsteel σύρματος: usuallyhot-βουτιά galvanizingorplatingfinishedsize, alsousewirepicklinghot-κρύο-drawnaftergalvanizingtotherequiredsize.
Oilhardenedspringsteel σύρμα: χάλυβα bemadeofcarbonsteeloralloy σε-demandcan, surfacetreatmentsandquenchedandtemperedaftercolddrawingtoafinishedsize, αυτό kindoftechnologyinautomotivesuspensioncoil springandvalvespringsteel wirewithmoreordinarySprings, φυσικά, canalsobeused.
Surfacetreatment:commonlyusedpicklingandphosphorization, removalofironoxidetoformphosphatecoating; afewmechanicalapproach Υπάρχουνοι. Aimwastomeettherequirementsofcold-drawnwire-drawingprocess, smoothsurfaceisobtained. Springsteel wireforhighfatiguelife τέτοια asvalvespringsteel σύρμα, σύρμα από χάλυβα rodherein, reducingsurfacedefectsonsteelbilletgrinding, alsohelpreducedefects.
Σχέδιο: finishedpullingthreaddrawingprocesshasagreatinfluenceontheproductproperties, generallyuselarger μείωση συνολικού εμβαδού περίπου 90% (seeareareductionrate) andlowpassareareduction (10% - 20%), inordertoensurethetoughnessof προϊόν. Σύρμα strengthspringsteel Forhigh, drawingforthecontrolofexportsofsteeltemperaturebelow150 ° c, preventingwirereverseduetostrainagingcrack, whichisamajorflawofsteelscrap. Για αυτό τον λόγο, drawingagoodlubricationisrequiredandsufficientcooling, smalllaneareareductionanddrawingspeedhelpsreducethewireand #39; stemperaturerise.
Θερμότητα μεταχείριση: carbonsteelSpringwireleadhardeningprocess σας fortheimprovementofdeepdrawingandspringpropertiesareuseful cangetveryfinePearlite (sorbite), patentingofthealternativeprocessoffluidized-bedis notextended, onlyinsmalldiameterapplication. Alloysteel wireannealingheat treatmentisgenerallyusedtomakedrawingdeformationmicrostructureadapted. Ανοξείδωτο steelwireheat treatmentsolutiontreatment, thepurposeof whichistoimprovetheOrganizationtomeettheneedsofdrawing.Oilquenchingprocessusedonthewireusinginductionheatingorgas,fuel oilfurnace, heatingthewiretotheaustenitizingtemperatureinsulationfor κάποτε, anothermedium-temperaturetemperingafterhardening. Althoughnominallycalledoil, basicallybywaterquenchingoraddpolymerwaterquenching.
