Pwm steel - (lub raj mis embryo pwm / PET pwm / raj billet pwm / txhaj pwm)
Kev txhais cov hlau
Hlau hais txog cov hlau carbon hlau nrog cov ntsiab lus ntawm 0.0218% ~ 2.11%.Alloy hlau tuaj yeem tau los ntawm kev ntxiv Cr, Mo, V, Ni thiab lwm yam khoom siv hlau rau hauv cov hlau zoo tib yam, thiab tag nrho peb cov pwm hlau yog cov hlau alloy.
Muaj peb txoj hauv kev tseem ceeb los hloov cov khoom ntawm steel:
Alloy muaj pes tsawg leeg
Cov pa roj carbon: C
Ua kom cov tawv nqaij tawv tawv;
Carbide tsim, txhim kho hnav tsis kam;
Txo toughness;
Txo solderability
Cr: Cr
Txhim kho lub hardness ntawm cov hlau, tsim ib qho nyuaj thiab ruaj khov chromium carbide, yog li txhim kho hnav tsis kam;
tuaj yeem txhim kho lub hardenability ntawm steel;
Thaum Cr cov ntsiab lus siab tshaj 12%, nws yog corrosion resistant thiab muab zoo polishing rotation
Mo, Mo
Mo yog ib qho muaj zog carbide tsim, txhim kho hnav tsis kam;
Mo> 5% tuaj yeem tiv thaiv kev kub ntxhov los ntawm lwm cov khoom siv alloying.
Muab liab hardness, thermal zog;
Txhim kho hardenability thiab temper stability
V: V
Muaj peev xwm tsim siab hardness carbide, txhim kho hnav tsis kam;
Ua kom zoo dua cov nplej loj ntawm cov hlau kom txo qis kev kub siab tshaj
Txhim kho steel zog, toughness thiab tempering stability
Nickel: Nws
Ni tuaj yeem txhim kho lub hardenability ntawm steel;
Kuv tuaj yeem kho cov nplej
Sulfur (S)
Nws feem ntau muaj nyob rau hauv cov hlau hauv daim ntawv ntawm MnS, uas tuaj yeem txhim kho cov peev txheej ntawm cov khoom los ntawm kev tawg qhov txuas ntxiv ntawm cov matrix thiab deteriorating lub toughness, corrosion resistance, optical rotation, paug machining thiab etching zog ntawm cov khoom.
2. Smelting txheej txheem
Ordinary steelmaking txheej txheem
Electroslag remelting (ESR)
Cov pob zeb ntxhib yog muab tso rau hauv lub cub hluav taws xob electroslag, thiab muaj zog tam sim no dhau los ua kom lub cub tawg ua kom kub siab heev, kom cov pob zeb ntxhib yog yaj rau hauv cov hlau molten, uas ntws los ntawm electroslag, thiab impurities yog lim thiab adsorbed los ntawm lub electroslag, thiaj li mus cuag cov nyhuv ntawm purification.Tag nrho cov remelting tus nqi yog ceev, tab sis ib co zoo heev impurities tsis raug tshem tawm.
Nqus arc remelting (VAR)
Nyob rau hauv lub tshuab nqus tsev vacuum, ib tug muaj zog hluav taws xob tam sim no yog siv rau lub steel embryo, hauv qab ntawm lub embryo pib yaj, thiab cov impurities vaporize mus rau hauv roj thiab yog pumped tawm, yog li txhim kho cov purity ntawm cov hlau.Ntxiv mus, nws yog solidified poob los ntawm poob, nrog ib tug ceev heev solidification ceev, thiab cov ntaub so ntswg ua heev ntom.Nws yog tus cwj pwm los ntawm kev tshem tawm tag nrho ntawm impurities, tab sis tag nrho remelting tus nqi qeeb.
3. Kev kho cua sov
Kev kho cua sov ntawm cov hlau yog hais txog cov txheej txheem cua sov thiab cua txias, thiab hloov cov khoom ntawm cov hlau los ntawm kev tswj cov cua sov, tuav lub sij hawm thiab txias ceev ntawm cov hlau, kom ua tau raws li qhov yuav tsum tau ua los yog siv.
Cov txheej txheem kev kho cua sov tseem ceeb yog: annealing, quenching, tempering.
Tuag steel yog cais raws li kev siv
1. Txias ua hauj lwm tuag steel
Cold ua hauj lwm tuag steel yog tsuas yog siv los tsim pwm rau nias txias workpiece.Xws li txias punching tuag, txias stamping tuag, txias kos tuag, stamping tuag, txias extrusion tuag, xov nias tuag thiab hmoov nias tuag.Kev ua haujlwm txias tuag steels muaj ntau yam ntawm cov cuab yeej carbon steel, cov cuab yeej alloy steels, cov cuab yeej kub ceev steels rau hmoov cov cuab yeej kub ceev steels thiab hmoov siab alloy tuag steels.
2. Kub ua haujlwm tuag steel
Kub ua hauj lwm tuag steel yog tsuas yog siv los tsim cov tuag rau siab machining ntawm workpiece nyob rau hauv high kub.Xws li kub forging tuag, kub extrusion tuag, tuag casting tuag, kub upsetting tuag.Cov feem ntau siv kub ua hauj lwm tuag steel yog: nruab nrab thiab siab carbon alloy tuag steel nrog Cr, W, Mo, V thiab lwm yam alloy ntsiab;High alloy austenitic kub resistant tuag steel yog qee zaum siv los tsim cov haujlwm kub tuag steel nrog cov cai tshwj xeeb.
3. Yas pwm hlau
Vim muaj ntau yam ntawm cov yas, cov kev cai ntawm cov khoom yas kuj tseem txawv heev, kev tsim cov khoom siv yas pwm kuj muab tso rau ntau qhov sib txawv.Yog li ntawd, ntau lub teb chaws tsim kev lag luam tau tsim ntau yam ntawm cov yas pwm steel series.Xws li cov khoom siv carbon steel, carburizing yas tuag steel, pre-hardening yas tuag steel, aging hardening yas tuag steel, corrosion resistant yas tuag steel, yooj yim txiav yas tuag steel, ib qho nyuaj hardening yas tuag steel, martensitic aging steel thiab daim iav polishing yas tuag steel .
Post lub sij hawm: May-10-2022