Txheej Txheem Sib Piv Ntawm Annealing Thiab Pickling Kab Rau Txias Rolled Stainless Hlau

Tom qab txias dov kev kho mob, lub hardness thiab lub zog ntawm stainless hlau phaj yog ho txhim kho, tab sis lub formability yog tsis txaus thiab nws yog ib qho nyuaj rau muab tso rau hauv lub lag luam. Yog li ntawd, yuav tsum tau ua cov kev kho mob tom qab. Ntawm lawv, txias-dov stainless hlau annealing thiab pickling kab txheej txheem thiab annealsdaim ntawv txias dovs tshem tawm cov kev ntxhov siab ntawm cov sawb, tshem tawm cov oxide nplai tsim thaum lub sij hawm ua thiab annealing, thiab thaum kawg ua tiav thiab straightening kev kho mob los txhim kho cov nto zoo ntawm cov sawb thiab tau txais kev txaus siab ntawm cov khoom. Yog li ntawd, nws yog qhov tseem ceeb tshaj plaws los kawm txog cov txheej txheem kev sib piv ntawm cov khoom siv txias-dov stainless hlau annealing thiab pickling kab.

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1 Cold dov stainless hlau, annealed thiab pickled

1.1 Kev siv thev naus laus zis

1.2 Tsis muaj nitric acid Pickling

1.3 Dalnox brighttm technology

1.4 Sib piv ntawm peb: txias dov stainless hlau, annealed thiab pickled, kub dov stainless hlau strip annealed thiab pickled
Thaum kawg, txias dov yuav tsum tau ua kom tau raws li cov kev ua tau zoo thiab cov thickness. Thaum lub sij hawm txias dov txheej txheem ntawm stainless hlau, ua hauj lwm hardening tshwm sim, thiab raws li tus nqi ntawm txias dov nce, theem ntawm kev ua hauj lwm hardening nce. Yog tias qhov kub ntawm cov khoom siv ua haujlwm hnyav nce mus rau 900-1100 degree, qhov deformation stresses raug tshem tawm thiab recrystallization tshwm sim ntawm qhov kub thiab txias, yog li softening cov khoom. Annealing tom qab txias dov tuaj yeem muab faib ua cov kab rov tav annealing thiab ntsug qaim annealing raws li txoj kev annealing, thiab nruab nrab annealing thiab zaum kawg annealing raws li cov txheej txheem annealing.
Kev sib piv ntawm Cold Rolled Stainless Steel Annealing thiab Pickling Line Processes Traditional Technology
Traditional txias dov stainless hlau

Txoj kab annealing thiab pickling muaj xws li cov hauv qab no:

① Qhov chaw nkag, uas muaj uncoiler, shearer, straightener, thiab lwm yam, thiab feem ntau yog siv rau uncoiling.
② Vuam tshuab, feem ntau xaiv nqaim nqaim vuam tshuab, xaiv seam vuam dov txheej txheem los ua haujlwm vuam.
③ Cov seem degreasing muaj plaub ntu ua haujlwm, suav nrog cov tshuaj tsuag ntxhua, ntu txhuam txhuam thiab ntxuav seem tshuab ziab ntu ib los ntawm ib qho. Qhov nruab nrab degreasing feem ntau yog alkali tov thiab dej kub hauv qhov dej yaug, thiab cua riam yog xaiv rau ziab.
④ Loop, kab rov tav voj nrog rau lub qhov hluav taws xob voj, inlet voj, thiab lwm yam.
⑤ Rau lub qhov cub annealing, kab rov tav suspension hom roj annealing rauv feem ntau yog xaiv los tsa qhov kub ntawm steel sawb mus rau 1050-1150 degree, thiaj li tshem tawm cov kev ua hauj lwm hardening thiab sab hauv kev ntxhov siab tsim thaum lub sij hawm steel sawb dov. Cov khoom muaj xws li ntu preheating, seem cua sov, seem cua txias thiab dej pos huab cua txias.
⑥ Pickling seem, uas yog tsuas yog siv los tshem tawm cov xeb ntawm qhov chaw ntawm steel sawb thaum lub sij hawm annealing nyob rau hauv lub cub tawg cheeb tsam. Cov khoom muaj xws li nruab nrab ntsev electrolysis cheeb tsam, txhuam qhov chaw, pickling cheeb tsam, tu seem thiab tshuab ziab khaub ncaws, thiab lwm yam. Thaum lub sij hawm stainless hlau annealing thiab pickling ntau lawm, HF + HNO3 tov acid pickling feem ntau yog siv los tshem tawm cov oxide txheej ntawm cov hlau. sawb ua los ntawm cov txheej txheem annealing ntawm kub dov zeb, thiab nyob rau tib lub sij hawm, stainless hlau nto yog passivated los ntawm pickling los txhim kho corrosion kuj ntawm steel phaj.