Raws li cov qauv siv lead ua ntawm cov pa roj carbon hauv cov carburizer, cov carburizer tuaj yeem faib ua amorphous state thiab crystalline state; Raws li daim ntawv uas muaj tam sim no ntawm cov pa roj carbon atom, nws tuaj yeem faib ua graphitized carburizing agent thiab non graphitized carburizing agent. Graphitized carburizers feem ntau suav nrog graphitized roj av coke thiab graphite electrode.
Graphitized roj av coke carburizer tau siv dav hauv kev tsim khoom lag luam. Nws cov txheej txheem tsim khoom yog txheej txheem kho cua sov kom sov uas cov khoom siv roj av coke tau ua kom sov ntawm 2200-2600 ℃ hauv qhov cub hluav taws xob kom hloov pauv cov txheej txheem tsis sib haum xeeb txheej txheej ntawm cov roj av coke rau hauv peb qhov kev txiav txim graphite siv lead ua, uas yog, txheej txheem graphitization kom ua tiav lub xeev graphitization.
Cov neeg ua haujlwm tsis siv cov graphitized feem ntau suav nrog cov roj av uas muaj cov coke, cov khoom siv raws li cov neeg ua haujlwm carburizing thiab lwm yam. Calcined roj av coke hais txog qhov tseeb tias roj av coke yog rhaub ntawm 1200, 1500 ℃ nrog kev kho mob kub thiab tsis hloov pauv cov qauv siv lead ua. Cov ntsiab lus tseem ceeb los ntsuas qhov zoo ntawm cov roj av yog cov ntsiab lus cov pa roj carbon, cov ntsiab lus sulfur, cov ntsiab lus hloov pauv, cov ntsiab lus tshauv, cov ntsiab lus nitrogen thiab cov dej. Tom qab graphitization ntawm qhov kub thiab txias, cov ntsiab lus sulfur thiab nitrogen ntawm graphitized carburizing tus neeg sawv cev yog qis dua li ntawm cov uas tsis yog graphitized carburizing tus neeg sawv cev.
