Graphitized roj av coke-Zoo siab
Cov roj av coke graphitized yog ua los ntawm cov roj av coke zoo ntawm qhov kub ntawm 2500-3000 ° C. Ua tus neeg sawv cev carburizing zoo, nws muaj cov pa roj carbon ntau thiab cov sulfur tsawg. Cov tshauv tsawg, qhov nrawm nqus tau zoo thiab lwm yam. Nws tuaj yeem siv los tsim cov hlau zoo, hlau cam khwb cia thiab cov khoom sib xyaw, thiab tseem tuaj yeem siv ua cov khoom ntxiv rau cov yas thiab roj hmab.
