Ntau tus neeg muaj kev nkag siab tsis zoo txog stainless hlau thiab ntseeg tias stainless hlau yuav tsis xeb. Qhov tseeb tiag, stainless hlau yog ua los ntawm cov hlau-chromium alloy thiab tom qab ntawd sib xyaw nrog lwm cov kab, thiab nws cov corrosion kuj zoo. Yog vim li cas yog qhov nto yog tsim nrog ib tug passivation zaj duab xis. Nyob rau hauv cov xwm, nws muaj nyob rau hauv daim ntawv ntawm ib tug ruaj khov oxide. Ntawd yog, txawm hais tias qib ntawm oxidation ntawm stainless hlau yog txawv nyob ntawm qhov kev siv, nws thiaj li oxidized. Qhov tshwm sim no feem ntau hu ua dab noj hnub.
Ntau cov iav stainless hlau hauv cov neeg caij tsheb qub yuav raug oxidized vim siv ntev, ua rau pom tsis yooj yim. Electrochemical cov tshuaj tiv thaiv los yog tshuaj tiv thaiv tshwm sim ntawm cov hlau nto raug rau ib puag ncig corrosive thiab yog uniformly corroded. Qhov tsis muaj zog corrosion tsis kam ntawm stainless hlau elevator nto passivation zaj duab xis tsim cov tshuaj tiv thaiv pitting vim nws tus kheej zoo siab cov tshuaj tiv thaiv, ua rau tsim cov qhov me me, ua ke nrog qhov sib ze ntawm cov tshuaj chloride ions, tsim cov tshuaj tiv thaiv corrosive thiab ua kom nrawm nrawm. ntawm cov tshuaj tiv thaiv corrosion. .
Tseem muaj intergranular corrosion cracking nyob rau hauv lub stainless hlau, tag nrho cov uas puas lub passivation zaj duab xis ntawm stainless hlau nto. Yog li ntawd, txhawm rau tswj hwm qhov zoo nkauj ntawm cov khoom siv hlau stainless thiab kom ntev lawv lub neej kev pabcuam, yuav tsum tau saib xyuas tsis tu ncua.
Nyob rau hauv kev muaj tiag, ib zaug nws pom tias stainless hlau nto ntawm lub elevator tau xeb, nws yuav tsum tau ntsuas los daws nws. Txwv tsis pub, tej zaum yuav muaj xwm txheej loj, thiab txawm tias muaj kev raug mob tshwm sim. Yog li ntawd, peb yuav tsum kawm paub ntau ntxiv txog kev saib xyuas ntawm stainless hlau nto ntawm elevators. Yuav ua li cas tswj nws, peb yuav tsis qhia nws ntawm no. Yog tias koj xav nkag siab nws, koj tuaj yeem tiv tauj peb ncaj qha.