Formula thiab txheej txheem txheej txheem ntawm acid pickling tov rau hluav taws xob cua sov raj electroplating
Tso lus
Formula thiab txheej txheem txheej txheem ntawm acid pickling tov rau hluav taws xob cua sov raj electroplating
Txhim kho txheej txheem pickling
2.1 Acid ntxuav kua mis mis thiab txheej txheem txheej txheem
Concentrated sulfuric acid (98 feem pua) 25-30 feem pua, sodium chloride 2-4 feem pua, pickling additives 2-5 feem pua (tsis ntxiv thaum npaj tank), (60 ± 5) degree .
2.2 Ntxiv sijhawm
Chongqing Shanchuan Precision Welded Yeeb Nkab Co., Ltd. tuab zaj duab xis oxide tawv welded kav feem ntau muab faib ua ob pawg: cov ntaub ntawv ib txwm thiab cov ntaub ntawv tsis tshua muaj ceev (4 (X) thiab annealing ceev cov ntaub ntawv hauv qab n). Cov ntaub ntawv ceev ceev muaj ntau qhov ntom ntom oxide piv rau cov khoom siv ib txwm, ua rau pickling nyuaj heev. Thaum cov khoom siv ib txwm khaws lub sij hawm ntau tshaj 30 thiab n, thiab cov khoom siv ceev ceev qis tshaj 65 thiab qhov loj ntawm n lossis FeZ ntxiv rau nce mus rau 60-50 μ L, pickling additives yog ntxiv. Thaum cov khoom siv ib txwm khaws lub sij hawm ntau tshaj 45 thiab n, thiab cov khoom siv ceev ceev qis tshaj 80 thiab n, ntxiv cov khoom qab zib ntxiv dua.
2.3 Ntxiv t
Thawj qhov sib ntxiv ntawm pickling additives muaj ib feem ntawm 2-5 feem pua, thiab tom qab txhua hnub ntxiv muaj ib tug loj feem ntawm 1-2 feem pua.
2.4 Lub Sijhawm ntawm qhov hloov pauv
Thaum muaj cov khib nyiab ntau dhau hauv lub tank pickling, uas ua rau nws nyuaj rau cua sov lub raj cua sov, thiab qhov loj ntawm Fe, ntxiv rau qis dua 209 / L, ncuav kua qaub kom tshem tawm cov sediment ua ntej siv txuas ntxiv. Yog hais tias qhov loj ntawm FeZ ntxiv yog siab dua ZoglL, ntxiv cov kua qaub ntxuav ntxiv yog tsis muaj kev lag luam ntxiv lawm. Lub sijhawm no, cov kua qaub ntxuav cov kua qaub tau muaj hnub nyoog thiab yuav tsum tau hloov kho. Tom qab neutralization ua tau raws li tus qauv, nws tuaj yeem raug tso tawm.
2.5 sulfuric acid ntxiv
Thaum lub sijhawm pickling, ntxiv sulfuric acid raws li xav tau kom ua tiav ib feem ntawm 20-28 feem pua .
3 Kev xaus
Chongqing Shanchuan Precision Welded Yeeb Nkab Co., Ltd. tau txo lub sij hawm pickling tom qab tau txais cov txheej txheem kua qaub no kom tshem tawm cov yeeb yaj kiab oxide tuab; Nyob rau theem pib ntawm pickling, kwv yees li 13 feem pua ntawm lub sijhawm pickling tuaj yeem cawm tau. Nyob rau hauv nruab nrab thiab tom qab theem ntawm pickling, txog ib nrab ntawm lub sij hawm pickling yuav cawm tau; Thiab siv cov txheej txheem tshiab tshem tawm qhov xav tau ntawm kev ntxuav dej kub, ua kom lub sijhawm ua haujlwm luv luv; Kev siv hluav taws xob tau raug txo qis, tus nqi ntawm cov kua qaub pov tseg tau raug txo, thiab qhov teeb meem ntawm kev xeb ntau dhau ntawm cov kav dej kuj tau raug daws, txhim kho kev tsim khoom zoo heev.
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