Vim li cas ntau lub tank pickling txoj kev suav tias muaj txiaj ntsig ntau dua li txoj hauv kev ib lub tank rau pickling steel kav?

Txoj kev ntau lub tank pickling muaj ntau qhov zoo dua li txoj hauv kev ib lub tank thaum pickling steel kav. Ua ntej, cov yeeb nkab steel yog pre-pickled nyob rau hauv lub tank nrog ib tug qis acid concentration tab sis ib tug ntau dua hlau ntsev cov ntsiab lus. Thaum lub sijhawm no, qhov kub ntawm cov kua qaub tuaj yeem nce siab, uas tshem tawm cov kab mob me me thiab lwm yam impurities nyob rau saum npoo ntawm cov kav dej steel. Thib ob, nyob rau hauv qhov kub-kub acid pickling kua, qhov kev sib cais ntawm cov hlau oxide tuab nrawm nrawm, ua kom yooj yim rau kev nthuav tawm ntawm hydrogen atoms rau hauv cov hlau substrate thiab tom qab tsim cov roj hydrogen. Raws li cov roj hydrogen khiav tawm, nws ua rau cov hlau oxide tev tawm. Thib peb, vim tias muaj ntau cov hlau oxide nplai thiab lwm yam kab mob tau khaws cia hauv lub tank ua ntej pickling, kev huv ntawm cov tshuaj pickling hauv lub tank kawg pickling yog guaranteed.