Nyob rau hauv lub ntiaj teb no ntawm cov hlau fabrication, kev kho deg ntawm stainless hlau yog ib tug tseem ceeb txheej txheem uas txhim khu cov khoom durability, zoo nkauj thov, thiab tsis kam mus corrosion. Ntawm Jindalai Steel Company, peb tshwj xeeb hauv kev muab cov khoom lag luam zoo stainless hlau, thiab peb nkag siab qhov tseem ceeb ntawm txoj kev kho saum npoo zoo. Qhov blog no yuav delve rau hauv ntau yam stainless hlau nto kho technologies, tsom rau cov txheej txheem feem ntau: pickling thiab passivation.
Dab tsi yog Txoj Kev Kho Nto rau Stainless Hlau?
Cov txheej txheem kev kho deg rau cov hlau tsis muaj steel tuaj yeem faib dav rau hauv cov txheej txheem kho tshuab thiab tshuaj. Mechanical txoj kev muaj xws li polishing, sib tsoo, thiab blasting, uas lub cev hloov qhov chaw los txhim kho nws tiav thiab tshem tawm imperfections. Cov txheej txheem tshuaj, ntawm qhov tod tes, koom nrog kev siv cov kev daws teeb meem tshwj xeeb kom ua tiav cov khoom xav tau, xws li txhim kho corrosion kuj.
Pickling thiab Passivation: Cov txheej txheem tseem ceeb
Ob ntawm cov txheej txheem siv tshuaj lom neeg feem ntau siv rau cov hlau tsis huv yog pickling thiab passivation.
Pickling yog txheej txheem uas tshem tawm oxides, nplai, thiab lwm yam kab mob los ntawm qhov chaw ntawm stainless hlau. Qhov no feem ntau yog ua tiav nrog kev sib xyaw ntawm cov kua qaub, xws li hydrochloric lossis sulfuric acid. Cov txheej txheem pickling tsis yog tsuas yog ntxuav lub ntsej muag tab sis kuj npaj nws rau kev kho mob ntxiv, kom ntseeg tau qhov kev pom zoo ntawm cov coatings los yog tiav.
Passivation, ntawm qhov tod tes, yog txheej txheem uas txhim kho lub ntuj oxide txheej ntawm stainless hlau, muab ib qho kev thaiv ntxiv tiv thaiv corrosion. Qhov no feem ntau ua tiav los ntawm kev kho cov hlau nrog cov tshuaj uas muaj citric lossis nitric acid. Passivation yog qhov tseem ceeb rau kev tswj xyuas kev ncaj ncees ntawm cov hlau tsis huv hauv qhov chaw hnyav, ua rau nws yog ib qho tseem ceeb hauv cov txheej txheem kho saum npoo.
Cov lus qhia tshwj xeeb rau Pickling thiab Passivation
Thaum nws los txog rau pickling thiab passivation, ua raws li cov lus qhia tshwj xeeb yog qhov tseem ceeb rau kev ua tiav cov txiaj ntsig zoo tshaj plaws.
1. Cov lus qhia kho Pickling:
- Xyuas kom lub ntsej muag stainless hlau yog huv si thiab tsis muaj roj lossis av.
- Npaj cov tshuaj pickling raws li cov chaw tsim khoom cov lus qhia, kom ntseeg tau qhov tseeb ntawm cov kua qaub.
- Muab cov hlau tsis huv hauv qhov kev daws rau lub sijhawm pom zoo, feem ntau yog li ntawm ob peb feeb mus rau ob peb teev, nyob ntawm qhov tuab ntawm oxide txheej.
- Yaug kom huv si nrog dej kom tshem tawm cov kua qaub thiab tshem tawm cov khoom seem.
2. Passivation Treatment Instructions:
- Tom qab pickling, yaug qhov stainless hlau qhov chaw kom tshem tawm cov kua qaub seem.
- Npaj cov tshuaj passivation, kom ntseeg tau tias nws ua tau raws li qhov xav tau tshwj xeeb.
- Submerge cov hlau stainless hauv cov tshuaj passivation rau lub sijhawm pom zoo, feem ntau ntawm 20 mus rau 30 feeb.
- Yaug nrog dej deionized kom tshem tawm cov kev daws teeb meem seem seem thiab qhuav qhov chaw kom qhuav.
Qhov txawv ntawm Pickling thiab Passivation
Txawm hais tias ob qho tib si pickling thiab passivation yog qhov tseem ceeb rau kev kho stainless hlau nto, lawv ua haujlwm sib txawv. Pickling feem ntau yog tsom rau kev ntxuav qhov chaw thiab tshem tawm cov kab mob, thaum passivation aims los txhim kho cov txheej txheem oxide tiv thaiv, txhim kho corrosion kuj. Kev nkag siab txog qhov sib txawv no yog qhov tseem ceeb rau kev xaiv txoj kev kho kom haum raws li cov ntawv thov tshwj xeeb thiab ib puag ncig.
Xaus
Ntawm Jindalai Steel Company, peb lees paub tias kev kho saum npoo ntawm stainless hlau tsis yog ib kauj ruam hauv kev tsim khoom; nws yog ib qho tseem ceeb ntawm cov khoom uas txiav txim siab lub neej ntev thiab kev ua tau zoo ntawm cov khoom kawg. Los ntawm kev siv cov thev naus laus zis zoo tshaj plaws stainless hlau saum npoo kho, suav nrog pickling thiab passivation, peb xyuas kom meej tias peb cov khoom ua tau raws li cov qauv siab tshaj plaws ntawm kev ua tau zoo thiab kav ntev. Txawm hais tias koj xav tau cov hlau tsis muaj steel rau kev tsim kho, tsheb, lossis lwm yam kev lag luam, peb cov kws tshaj lij hauv cov txheej txheem kho hlau ntog tau lees tias koj tau txais cov kev daws teeb meem zoo tshaj plaws rau koj cov kev xav tau.
Post lub sij hawm: Dec-03-2024