Thaum tuav, sib sau ua ke, vuam, vuam seam tshuaj xyuas, thiab ua cov txheej txheem sab hauv daim hlau, cov khoom siv, thiab cov khoom siv ntawm stainless hlau tso tsheb hlau luam, ntau yam kab mob xws li roj stains, khawb, xeb, impurities, low-melting-point metal pollutants. , xim, vuam slag, thiab splatter yog qhia.Cov tshuaj no cuam tshuam rau qhov zoo ntawm cov hlau tsis muaj steel, ua rau nws cov zaj duab xis passivation, txo qhov kev tiv thaiv corrosion, thiab ua rau nws raug rau cov corrosive media hauv cov khoom siv tshuaj thauj tom qab, ua rau pitting, intergranular corrosion, thiab txawm tias kev ntxhov siab corrosion tawg.
Stainless hlau tso tsheb hlau luam, vim yog nqa ntau yam tshuaj, muaj cov kev xav tau siab rau kev tiv thaiv cov khoom sib kis.Raws li qhov zoo ntawm cov hlau tsis zoo hauv tsev yog qhov tsis zoo, nws yog ib qho kev xyaum ua txhua yam, tshuaj, lossiselectrolytic polishingntawm stainless hlau daim hlau, khoom siv, thiab accessories ua ntej ntxuav, pickling, thiab passivating los txhim kho corrosion kuj ntawm stainless hlau.
Cov zaj duab xis passivation ntawm stainless hlau muaj dynamic yam ntxwv thiab yuav tsum tsis txhob muab suav hais tias yog ib tug tag nrho halt rau corrosion tab sis theej tsim ntawm ib tug diffusing tiv thaiv txheej.Nws zoo li yuav raug puas tsuaj nyob rau hauv lub xub ntiag ntawm txo cov neeg ua hauj lwm (xws li chloride ions) thiab muaj peev xwm tiv thaiv thiab kho nyob rau hauv lub xub ntiag ntawm oxidants (xws li huab cua).
Thaum cov hlau tsis muaj hlau raug huab cua, cov ntaub ntawv oxide zaj duab xis.
Txawm li cas los xij, cov yeeb yaj kiab tiv thaiv no tsis txaus.Los ntawm acid pickling, qhov nruab nrab thickness ntawm 10μm ntawm covstainless hlau ntoyog corroded, thiab cov tshuaj lom neeg kev ua si ntawm cov kua qaub ua rau lub dissolution tus nqi ntawm cov defect qhov chaw siab tshaj lwm qhov chaw.Yog li, pickling ua rau tag nrho saum npoo zoo li sib npaug sib npaug.Qhov tseem ceeb, los ntawm pickling thiab passivation, hlau thiab nws cov oxides yaj nyiam dua piv rau chromium thiab nws cov oxides, tshem tawm cov chromium-depleted txheej thiab enriching nto nrog chromium.Nyob rau hauv qhov kev txiav txim siab ntawm oxidants, ua tiav thiab ruaj khov passivation zaj duab xis yog tsim, nrog lub peev xwm ntawm cov chromium-nplua nuj passivation zaj duab xis ncav cuag +1.0V (SCE), ze rau lub peev xwm ntawm cov hlau tsis muaj zog, txhim kho corrosion kuj stability.
Post lub sij hawm: Nov-28-2023