(1) Hauv qab-pickling: Tom qab pickling, tej zaum yuav muaj nyob rau hauv lub zos unremoved hlau oxide nplai seem nyob rau saum npoo ntawm cov yeeb nkab steel, uas yog hu ua under-pickling.
Kev zam: Ua ntej, txo qhov nrawm nrawm. Yog hais tias nyob rau hauv-pickling tseem tshwm sim, tsim nyog nce lub pickling kub. Yog tias qhov teeb meem tshwm sim, tsim nyog nce acid concentration.
(2) Tshaj-pickling: Thaum cov yeeb nkab steel nyob twj ywm hauv cov tshuaj pickling ntev dhau lawm, nws qhov chaw maj mam dhau los ua ntxhib thiab pitted, nrog lub phaj saum npoo darkening, uas yog hu ua over-pickling.
Kev zam: Tsim nyog tswj qhov kub ntawm pickling, pickling ceev, pickling kua concentration, thiab ntxiv cov tshuaj tiv thaiv corrosion tsim nyog los tswj lub sij hawm thiab cov tshuaj tiv thaiv ntawm cov hlau substrate thiab cov kua qaub. Ntawm cov txheej txheem no, ntxiv cov tshuaj tiv thaiv corrosion yog ib qho yooj yim thiab siv tau zoo. Lub luag haujlwm tseem ceeb ntawm cov tshuaj tiv thaiv corrosion yog adsorb ntau nruj rau ntawm cov yeeb nkab steel ntau dua li hydrogen, yog li txhim kho cov tshuaj tiv thaiv hydrogen thiab txo qhov nce thiab poob ntawm electrons.
