Caij nplooj ntoos hlav ca hlau
1. Ua ca steel nrog converter mas siv molten hlau li raw khoom.Muaj ob peb yam teeb meem nyob rau hauv cov hlau molten, thiab qhov zoo ntawm cov hlau tiaj tus tsim tau lav.
2. Vim tias muaj cov khoom lag luam siab thiab kev siv hluav taws xob tsawg, tus nqi ib tuj yog qis dua li ntawm lub tshuab hluav taws xob.
3. Molten steel yog ncaj qha nrum rau hauv billet, uas tshem tawm cov txheej txheem qhib billet thiab txo tus nqi.
4. Lub nruam casting billet muaj siab sizing tus nqi, uas muaj peev xwm xyuas kom meej qhov sizing tus nqi ntawm ca steel thiab ua tau raws li cov kev xav tau ntawm cov neeg siv.
Ferrous hlau, hlau thiab non-ferrous hlau
Ua ntej qhia txog kev faib cov hlau, luv luv qhia cov ntsiab lus ntawm cov hlau ferrous, hlau thiab cov hlau tsis muaj hlau.
1. Ferrous hlau hais txog hlau thiab hlau alloys.Xws li steel, npua hlau, ferroalloy, cam khwb cia hlau, thiab lwm yam. Hlau thiab npua hlau yog alloys raws li hlau thiab nrog carbon raws li lub ntsiab ntxiv ntsiab, uas yog collectively hu ua hlau carbon alloys.
Npua hlau yog cov khoom lag luam ntawm smelting hlau ore rau hauv qhov cub tawg, uas yog siv los ua steelmaking thiab casting.Cam khwb cia npua hlau yog melted nyob rau hauv ib tug hlau melting rauv kom tau cam khwb cia hlau (kua).Cov kua cam khwb cia hlau yog cam khwb cia rau hauv ib qho casting.Hom cam khwb cia no hu ua cam khwb cia hlau.Ferroalloy yog ib qho alloy uas muaj hlau thiab silicon, manganese, chromium, titanium thiab lwm yam khoom.Ferroalloy yog ib qho ntawm cov khoom siv raw rau steelmaking.Nws yog siv los ua deoxidizer thiab alloy element additive rau steel thaum steelmaking.
2. Hlau yog tau los ntawm melting npua hlau rau steelmaking nyob rau hauv ib tug steelmaking rauv raws li ib tug tej yam txheej txheem.
3. Nonferrous hlau, tseem hu ua non-ferrous hlau, xa mus rau cov hlau thiab alloys uas tsis yog ferrous hlau, xws li tooj liab, tin, lead, zinc, aluminium, tooj dag, bronze, aluminium alloy thiab bearing alloy.Tsis tas li ntawd, chromium, npib tsib xee, manganese, molybdenum, cobalt, vanadium, tungsten thiab titanium kuj siv rau hauv kev lag luam.Cov hlau no feem ntau yog siv los ua alloy additives los txhim kho kev ua haujlwm ntawm cov hlau.Tungsten, titanium thiab molybdenum feem ntau yog siv los tsim cov cemented carbide rau cov cuab yeej txiav.Cov hlau uas tsis yog-ferrous no hu ua industrial metals.Tsis tas li ntawd, muaj cov hlau tseem ceeb: platinum, kub, nyiaj thiab hlau tsis tshua muaj, suav nrog cov xov tooj cua uranium thiab radium.
Kev faib tawm los ntawm kev siv
(1) Hlau rau kev tsim kho thiab Engineering: zoo tib yam carbon structural steel;Tsawg alloy qauv steel;Hlau reinforcement.
(2) Cov qauv hlau
Hlau rau machinery manufacturing: quenched thiab tempered structural steel;Deg hardening structural steel: nrog rau cov hlau carburized, ammonia steel thiab nto quenching hlau;Yooj yim los txiav cov qauv hlau;Hlau rau txias yas sib sau: nrog rau steel rau txias stamping thiab steel rau txias taub hau.
(1) Kev ua haujlwm tshwj xeeb steel: Stainless thiab acid resistant steel;Thaum tshav kub kub resistant steel: nrog rau oxidation resistant steel, tshav kub zog steel thiab cua valve steel;Hluav taws xob cua sov alloy hlau;Hnav resistant steel;Tsawg kub steel;Hluav taws xob hlau.
(2) Kev cob qhia steel: xws li choj hlau, nkoj hlau, boiler steel, siab nkoj steel, ua liaj ua teb machinery steel, thiab lwm yam.
