Stainless tus hlau muaj tsawg kawg ntawm 10.5% chromium, uas tsim, thiab cov txheej txheem oxide nyob saum npoo ntawm cov hlau hu ua "txheej passive." Qhov passive txheej yog dab tsi ua rau stainless hlau zoo heev tiv taus rau xeb thiab corrosion.
Thaum cov hlau tau raug rau cov pa oxygen thiab noo noo, cov chromium nyob rau hauv cov pa hlau ntawm cov roj roj chromium ntawm cov hlau. Qhov no cov roj chromium oxide txheej yog qhov tiv thaiv heev, raws li nws ruaj khov thiab tsis tawg yooj yim. Raws li qhov tshwm sim, nws tau tiv thaiv cov hlau hauv qab nws los ntawm kev sib cuag nrog huab cua thiab ya raws, uas yog qhov tsim nyog rau kev xeb cov txheej txheem tshwm sim.
Cov txheej passive yog qhov tseem ceeb rau kev xeb tsis kam ntawm cov hlau stainless, thiab tus nqi ntawm chromium hauv cov hlau txiav txim siab tias nws muaj peev xwm tiv thaiv xeb thiab xeb. Cov ntsiab lus Chromium cov ntsiab lus tau tshwm sim hauv kev tiv thaiv passive txheej thiab zoo dua corrosion tsis kam. Tsis tas li ntawd, lwm yam xws li npib tsib xee, molybdenum, thiab nitrogen tseem tuaj yeem muab ntxiv rau cov hlau los txhim kho nws corrosion tsis kam.
Lub sijhawm Post: Feb-15-2023