Nyob ntawm txoj kev khiav hauj lwm, muaj 6 txoj hauv kev tseem ceeb rau cov kua qaub pickling thiab passivation ntawm stainless hlau: immersion method, paste method, brushing method, spraying method, circulation method, and electrochemical method.Ntawm cov no, txoj kev immersion, paste method, thiab txau txoj kev yog ntau haum rau acid pickling thiab passivation ntawm stainless hlau tso tsheb hlau luam thiab khoom siv.
Txoj kev immersion:Txoj kev no feem ntau haum raustainless hlau pipelines, lub luj tshib, qhov me me, thiab muab kev kho mob zoo tshaj plaws.Raws li cov khoom kho tau tuaj yeem nkag mus rau hauv cov kua qaub pickling thiab cov tshuaj passivation, cov tshuaj tiv thaiv saum npoo tiav, thiab cov yeeb yaj kiab passivation yog ntom thiab sib xws.Txoj kev no tsim nyog rau kev ua haujlwm tas mus li tab sis yuav tsum tau ua kom tiav cov tshuaj tshiab ntxiv raws li qhov concentration ntawm cov tshuaj reacting txo.Nws qhov tsis zoo yog tias nws raug txwv los ntawm cov duab thiab lub peev xwm ntawm cov kua qaub tank thiab tsis haum rau cov khoom siv loj lossis cov kav dej uas muaj cov duab ntev ntev lossis dav.Yog tias tsis siv rau lub sijhawm ntev, qhov kev ua tau zoo yuav txo qis vim yog cov tshuaj evaporation, xav tau ib qho chaw tshwj xeeb, kua qaub tank, thiab cov khoom siv cua sov.
Txoj kev Paste: Cov kua qaub pickling muab tshuaj txhuam rau stainless hlau yog dav siv hauv tsev thiab muaj nyob rau hauv cov khoom lag luam.Nws cov khoom tseem ceeb suav nrog nitric acid, hydrofluoric acid, corrosion inhibitors, thiab thickening agents, nyob rau hauv cov proportions.Nws yog siv manually thiab haum rau kev tsim kho ntawm qhov chaw.Nws muaj feem xyuam rau lub pickling thiab passivation ntawm stainless hlau tank welds, discoloration tom qab vuam, lawj saum, ces kaum, tuag ces kaum, ntaiv rov qab, thiab cov cheeb tsam loj nyob rau hauv cov kua compartments.
Qhov zoo ntawm txoj kev muab tshuaj yog tias nws tsis tas yuav tsum muaj cov cuab yeej tshwj xeeb lossis qhov chaw, cov khoom siv cua sov tsis xav tau, kev ua haujlwm ntawm qhov chaw yog hloov tau, acid pickling thiab passivation tau ua tiav hauv ib kauj ruam, thiab nws muaj kev ywj pheej.Passivation paste muaj lub neej ntev ntev, thiab txhua daim ntawv thov siv cov tshuaj passivation tshiab rau kev siv ib zaug.Cov tshuaj tiv thaiv nres tom qab txheej txheej ntawm passivation, ua rau nws tsis tshua muaj kev cuam tshuam ntau dhau.Nws tsis txwv los ntawm lub sij hawm yaug tom ntej, thiab passivation hauv qhov chaw tsis muaj zog xws li welds tuaj yeem ua kom muaj zog.Qhov tsis zoo yog qhov chaw ua haujlwm rau tus neeg teb xov tooj yuav tsis zoo, kev siv zog ua haujlwm siab, cov nqi kuj tseem ceeb, thiab cov txiaj ntsig ntawm kev kho cov phab ntsa sab hauv ntawm cov kav hlau stainless yog me ntsis qis dua, yuav tsum muaj kev sib xyaw nrog lwm txoj kev.
Txoj kev tshuaj tsuag:Haum rau qhov chaw ruaj khov, kaw ib puag ncig, cov khoom siv ib leeg, lossis cov khoom siv nrog cov txheej txheem sab hauv yooj yim rau cov kua qaub pickling thiab passivation, xws li cov txheej txheem txau ntawm cov ntawv hlau ntau lawm.Nws qhov zoo yog kev ua haujlwm nrawm nrawm, kev ua haujlwm yooj yim, cuam tshuam me me rau cov neeg ua haujlwm, thiab cov txheej txheem hloov pauv tuaj yeem txau cov raj xa dej ntxiv nrog cov kua qaub.Nws muaj qhov kev siv ntau ntawm cov tshuaj.
Post lub sij hawm: Nov-29-2023