Stainless hlau tsis yog xeb, tab sis tsis yooj yim rau xeb. Hauv qee qhov xwm txheej, cov hlau tsis muaj steel kuj yuav xeb. Lub nto ntawm stainless hlau muaj ib tug heev nyias, nyias thiab ruaj khov chromium nplua nuj oxide zaj duab xis, stainless hlau xeb, los ntawm no oxide zaj duab xis los tiv thaiv cov pa atoms infiltration oxidation cov tshuaj tiv thaiv thiab xeb. Qhov tseeb, qee qhov stainless hlau muaj ob qho tib si xeb thiab acid tsis kam (corrosion resistance). Cov xeb thiab corrosion tsis kam ntawm stainless hlau yog vim tsim cov chromium-nplua nuj oxide zaj duab xis (passivation zaj duab xis) ntawm nws nto, uas cais cov hlau los ntawm sab nraud nruab nrab, tiv thaiv cov hlau los ntawm corroded ntxiv, thiab muaj peev xwm ua tau. kho nws tus kheej. Yog tias nws puas lawm, cov chromium hauv cov hlau yuav rov tsim dua ib zaj duab xis passivation nrog cov pa oxygen hauv nruab nrab thiab txuas ntxiv ua lub luag haujlwm tiv thaiv. Thaum cov oxide zaj duab xis puas lawm, nws xeb yooj yim.
1) Ib puag ncig ntawm stainless hlau yog ntub, nyob rau hauv cov ntaub ntawv ntawm dej thiab oxygen, tsim cov organic acid thiab yaig puas rau saum npoo ntawm stainless hlau.
2) Cov khoom siv hlau tsis muaj hlau yog cov khoom siv puas tsuaj los ntawm cov cuab yeej teeb tsa thiab tom qab ntawd ua rau lub ntsej muag tiv thaiv zaj duab xis puas. Piv txwv li, thaum lub stainless hlau bolts raug ntsia rau sab nraum zoov ntaub thaiv phab ntsa engineering, lub wrench ua rau txhua yam puas tsuaj rau qhov chaw uas lub taub hau ntsia liaj qhov rooj. Tom qab nag ntxuav, lub taub hau ntawm stainless hlau bolts yuav tshwm me ntsis ntab xeb.
3) Muaj plua plav impurities los yog hlau hais nyob rau saum npoo ntawm stainless hlau, uas yog ib qho yooj yim rau electrochemical react nrog stainless hlau nyob rau hauv cov huab cua ntub kom ceev cov corrosion ntawm stainless hlau.
4) Stainless hlau nto raug rau cov kua qaub, alkali, ntsev thiab lwm yam khoom muaj feem xyuam rau cov tshuaj tiv thaiv corrosion. Piv txwv li, cov ntaub thaiv phab ntsa txuas fasteners nyob rau hauv ntug dej hiav txwv nroog feem ntau xaiv rau 316 stainless hlau cov khoom (ntau dua corrosion-resistant dua 304 stainless hlau), vim hais tias cov ntsiab lus ntsev siab nyob rau hauv cov huab cua ntawm ntug hiav txwv nroog yog ib qho yooj yim ua rau corrosion rau stainless hlau.
Yog li ntawd, txhawm rau ua kom cov khoom lag luam stainless hlau ua kom ci thiab tsis corroded, nws yog ib qho tsim nyog yuav tsum xaiv cov khoom zoo ntawm cov khoom siv hlau stainless, ua raws li kev ntxuav thiab tswj cov khoom siv hlau stainless, tshem tawm cov impurities saum npoo kom tsis txhob muaj cov tshuaj tiv thaiv thiab corrosion.
Post lub sij hawm: Aug-19-2022