Cov txheej txheem ua haujlwm ua haujlwm kom tshem tawm cov tawv nqaij oxide thiab xeb ntawm cov hlau ntawm cov hlau thiab hlau, siv cov kua qaub acidic, yog hais txog pickling.
Hlau oxides xws li cov nplai oxide thiab xeb (Fe3O4, Fe2o4, FeoTs, tsim cov ntsev uas yaj thiab raug tshem tawm.
yauv mus rau cov tshuaj lom neeg cov tshuaj lom neeg acidic, ua rau muaj kev tsim ntawm soluble ntsev uas tau tom qab extracted. Cov kua qaub rau cov txheej txheem pickling encompruric acid, hydrochloric acid, nitric acid, nydrofluoric acid, thiab cov accosite acids. Feem ntau, sulfuric acid thiab hydrochloric acid yog cov kev xaiv zoo. Cov txheej txheem picking feem ntau yog suav nrog kev nqus pickling, txau pickling, thiab acid muab tshuaj txhuam xeb.

Feem ntau, immersion pickling yog feem ntau siv, thiab cov txuj ci tshuaj tsuag tuaj yeem siv rau hauv ntau lawm

Cov khoom siv hlau sib xyaw ua ke raug kaw rau hauv 10% rau 20% (los ntawm ntim) sulfuric acid daws ntawm kev ua haujlwm kub ntawm 40 ° C. Hloov ntawm cov kev daws teeb meem pickling dhau los ua cov ntsiab lus hlau surpasses 80g / l thiab ferrous sulfate tshaj 215g / u nyob rau hauv kev daws.

Nyob rau hauv chav tsev kub,Pickling HlauNrog 20% ​​mus rau 80% (ntim) hydrochloric acid daws teeb meem rau corrosion thiab hydrogen embrittlement.
Owing rau cov lus tshaj tawm corrosive enlloctive ntawm cov acids ntawm cov hlau, xeb txwv tsis pub qhia. Tom qab-ntxuav, cov hlau nto nthuav qhia cov nyiaj dawb, pom qhov ua kom rov qab mus rau kev ua haujlwm ntawm cov hlau uas tsis muaj hlau.

Ntseeg tau cov elucidation no ua pov thawj muaj txiaj ntsig. Yuav tsum nug ntxiv, thov tsis txhob ua siab deb sib txuas lus.