43. Vim li cas nws thiaj li ua tau zoo rau viav vias cov yeeb nkab steel los yog ncig cov tshuaj thaum lub sij hawm pickling?

Thaum ua cov kua qaub rau ntawm cov kav hlau, peb qhov kev soj ntsuam tseem ceeb tshwm sim: Ua ntej, oscillating cov kav dej los yog siv chav ua kom agitate cov tshuaj pickling ho txhim kho tus nqi pickling piv rau qhov chaw zoo li qub. Piv txwv li, nyob rau hauv ib tug reciprocating pickling thav duab, viav vias cov kav dej ntawm 30 cycles ib feeb ua kom lub pickling ceev los ntawm kwv yees li 70%. Xwb, siv cua kub los nplawm cov tshuaj txhim kho tus nqi pickling li ntawm 20%. Qhov thib ob, qhov kev txiav txim scouring txo hydrogen deposition ntawm cov yeeb nkab nto, txo hydrogen diffusion rau hauv cov hlau matrix. Qhov no minimizes acid embrittlement thiab tswj txhua yam zog. Nyob rau tib lub sijhawm, cov txheej txheem scouring tshem tawm cov npuas npuas, impurities, hlau ntsev, thiab oxide nplai, uas ua rau cov kav dej huv. Thib peb, agitated cov kev daws teeb meem tswj kev sib xyaw ua ke, ncua kev daws qhov kev pab cuam lub neej.