Cov txheej txheem ntau lawm ntawm tshav kub Resistant Steel

Thaum tshav kub kub resistant steelsyog alloy steels nrog lub zog siab thiab zoo tshuaj stability ntawm qhov kub thiab txias.

Thaum tshav kub kub resistant steel muaj xws li oxidation resistant steel thiab thermal zog steel: oxidation resistant steel feem ntau yuav tsum tau zoo tshuaj stability, tab sis lub load yog qis dua; Thermal zog steel yuav tsum muaj siab kub zog thiab coj oxidation kuj. Thaum tshav kub kub resistant steel yog feem ntau siv nyob rau hauv kev tsim cov boilers, chav turbines, fais fab mov, industrial furnaces thiab aviation, petrochemical thiab lwm yam kev lag luam sectors nyob rau hauv lub high-temperature ua hauj lwm ntawm qhov chaw. Cov khoom no ntxiv rau qhov kub thiab txias zog thiab tsis kam mus rau qhov kub thiab txias oxidation corrosion, raws li kev siv cov kev xav tau sib txawv kuj yuav tsum muaj qhov toughness txaus, zoo machinability thiab weldability, nrog rau qee yam kev ruaj ntseg. Thaum tshav kub kub resistant cam khwb cia hlau feem ntau yog siv nyob rau hauv lub cam khwb cia lub xeev, tab sis kuj raws li cov hom ntawm tshav kub resistant steel nrog cov coj cov kev kho cua sov. Cov hauv qab no yog cov lus qhia luv luv rau cov txheej txheem tsim khoom ntawm cov cua sov resistant steel:

Smelting: Thaum tshav kub kub resistant steel feem ntau smelted nyob rau hauv hluav taws xob arc rauv los yog induction rauv, nqus refining thiab cub refining txheej txheem feem ntau yog siv rau siab zoo.

Casting: ib co high alloy kub resistant steel yog ib qho nyuaj rau kev deformation, zus tau tej cov castings tsis tsuas yog siv nyiaj ntau tshaj li cov khoom dov, tab sis kuj cov casting muaj lub zog ntev dua, yog li cov cua sov resistant cam khwb cia hlau nyob rau hauv lub tshav kub resistant steel occupies. ib qho kev faib ua feem ntau. Ntxiv nrog rau cov xuab zeb casting, precision casting kuj tseem siv tau kom tau cov khoom lag luam nrog du nto thiab qhov loj me. Centrifugal casting feem ntau yog siv rau hauv qhov cub kub kub rau kev tawg ammonia thiab ethylene.

Kev kho cua sov: pearly kub hlau feem ntau yog siv tom qab normalizing lossis tempering; Lub tshav kub resistant martensitic steel yog kho nrog quenching thiab tempering kom stabilize lub microstructure thiab tau txais cov khoom zoo txhua yam thiab lub zog kub.

Ferritic steel tsis tuaj yeem ntxiv dag zog los ntawm kev kho cua sov. Txhawm rau tshem tawm cov kev ntxhov siab sab hauv los ntawm kev ua cov yas deformation thiab vuam, kev kho mob tuaj yeem ua tiav ntawm 650 ~ 830 degree, tom qab annealing, txias txias, kom sai dhau 475 degree nkig kub ntau yam; Feem ntau cov austenitic oxidation resistant steels yog kho nrog kub tov kom tau zoo txias deformation. Lub austenitic thermo-lub zog steel tau kho nrog cov tshuaj kub kub ua ntej, thiab tom qab ntawd muaj hnub nyoog ntawm 60 ~ 100 degree saum toj no qhov kev pabcuam kub kom ruaj khov rau cov qauv thiab precipitate theem ob los ntxiv dag zog rau matrix.