Kev ua tau zoo ntawm stainless hlau square tube

Cov hlau tuaj yeem hnov ​​​​mob nrog oxygen hauv qhov chaw los tsim cov oxide zaj duab xis ntawm qhov chaw. Cov hlau oxide tsim los ntawm cov pa roj carbon zoo tib yam yuav txuas ntxiv mus rau oxidize, ua rau corrosion mus txuas ntxiv thiab nws thiaj li tsim qhov. Qhov no tuaj yeem siv cov xim lossis oxidation-resistant hlau plating los tiv thaiv cov pa roj carbon steel, tab sis cov txheej txheem tiv thaiv no tsuas yog ib zaj duab xis nyias. Yog tias cov txheej tiv thaiv raug puas tsuaj, cov hlau hauv qab no yuav pib xeb dua. Txawm hais tias cov yeeb nkab steel hlau tsis xeb yog cuam tshuam nrog cov ntsiab lus chromium hauv cov hlau. Thaum cov ntsiab lus chromium nyob rau hauv cov hlau nce mus txog 12%, nyob rau hauv cov huab cua, ib txheej ntawm passivated, ntom chromium-nplua nuj oxide yog generated nyob rau saum npoo ntawm stainless hlau yeeb nkab los tiv thaiv nto thiab tiv thaiv ntxiv re-oxidation. Hom oxide txheej no nyias nyias, thiab lub ntuj ci ntawm cov hlau nto tuaj yeem pom los ntawm nws, muab cov hlau tsis muaj qhov tshwj xeeb. Yog hais tias chromium zaj duab xis yog ib zaug puas lawm, cov chromium nyob rau hauv cov hlau thiab cov pa oxygen nyob rau hauv cov huab cua yuav regenerate ib tug passivation zaj duab xis mus txuas ntxiv ua lub luag hauj lwm tiv thaiv. Hauv qee qhov chaw tshwj xeeb, cov hlau tsis muaj steel kuj yuav ua tsis tiav vim qee qhov hauv zos corrosion, tab sis stainless hlau, tsis zoo li cov pa roj carbon steel, yuav tsis poob vim tsis zoo corrosion, yog li qhov kev tiv thaiv corrosion tsis muaj nuj nqis rau cov kav hlau stainless.