Cov hlau tsis xeb muaj tsawg kawg yog 10.5% chromium, uas tsim ib txheej oxide nyias, tsis pom, thiab lo rau ntawm qhov chaw ntawm cov hlau hu ua "txheej passive." Txheej passive no yog qhov ua rau cov hlau tsis xeb thiab xeb tau zoo heev.
Thaum cov hlau raug rau cov pa oxygen thiab cov dej noo, cov chromium hauv cov hlau yuav ua rau cov pa oxygen hauv huab cua ua rau ib txheej nyias nyias ntawm chromium oxide rau ntawm qhov chaw ntawm cov hlau. Cov txheej chromium oxide no tiv thaiv tau zoo heev, vim nws ruaj khov heev thiab tsis yooj yim tawg. Yog li ntawd, nws tiv thaiv cov hlau hauv qab nws kom tsis txhob kov cov pa thiab cov dej noo, uas yog qhov tsim nyog rau cov txheej txheem xeb.
Cov txheej passive yog qhov tseem ceeb rau kev tiv thaiv xeb ntawm cov hlau stainless, thiab qhov ntau ntawm chromium hauv cov hlau txiav txim siab nws lub peev xwm los tiv thaiv xeb thiab xeb. Cov ntsiab lus chromium ntau dua ua rau muaj cov txheej passive tiv thaiv ntau dua thiab tiv thaiv xeb zoo dua. Tsis tas li ntawd, lwm yam khoom xws li nickel, molybdenum, thiab nitrogen kuj tseem tuaj yeem ntxiv rau cov hlau kom txhim kho nws txoj kev tiv thaiv xeb.
Lub sijhawm tshaj tawm: Lub Ob Hlis-15-2023