Hauv tag nrho cov txheej txheem ntawm kev nplua, vim yog kev kho tsis zoo los yog kev tso tawm thiab cov carburization ntau dhau, qee zaum cov ntsiab lus carbon nyob rau hauv cov hlau tsis tau raws li qhov yuav tsum tau ua. Lub sijhawm no, nws yog qhov yuav tsum tau ntxiv cov pa roj carbon monoxide ua rau desolvent. Cov hom carburizers yog carburized cam khwb cia hlau, hluav taws xob qib hmoov, roj av coke hmoov, hluav ncaig hmoov thiab coke hmoov. Cov roj av coke nrog cov khoom siv me me ntau yog siv los ua cov carburizer rau cov roj av nruab nrab thiab nruab nrab hauv cov hlau ua kom sov. Cov kev cai ntawm carburizer rau sab saum toj lub tshuab hluav taws xob hloov pauv hloov steelmaking yog tias cov pa roj carbon monoxide ruaj yuav tsum siab, tshauv, hloov pauv, sulfur, phosphorus, nitrogen thiab lwm cov ntsiab lus seem yuav tsum muaj tsawg, thiab qhuav, huv, cov faib loj me me yuav tsum muaj ntsis.
Muaj ntau hom khoom siv rau cov carburizers, thiab cov txheej txheem tsim tawm kuj tseem muaj qhov sib txawv, suav nrog cov ntoo carbon, cov pa roj carbon cov pa roj carbon, coke carbon, cov pa roj carbon monoxide siab, thiab lwm yam zoo. Nyob hauv qhov kub thiab txias txheem, qhov kev txiav txim ntawm oxygen atoms yog kev lag luam sab nraud cov duab ntawm siab purity graphite, yog li nws hu ua graphitization. Cov duab graphit tuaj yeem txo cov ntsiab lus ntawm cov khoom seem hauv carburizer, txhim kho cov pa roj carbon carburizer thiab txo cov ntsiab lus sulfur. Daim ntawv thov ntawm cov carburizer hauv forging tuaj yeem ua rau kom ntau ntawm cov hlau khib nyiab, kom txo cov hlau cam khwb cia lossis tsis muaj cov cam khwb cia hlau yog xav tau.
Kev siv cov graphite hmoov ua tus neeg saib xyuas carburizing thiab cov pa ntawm 40kg / T, nws tau kwv yees tias cov pa roj carbon ntsiab lus ntawm molten hlau tuaj yeem nce ntawm 2% mus rau 3%. Nrog rau qhov nce ntawm carbon cov ntsiab lus nyob rau hauv molten hlau, kev siv tus nqi ntawm cov pa roj carbon monoxide txo. Qhov kub ntawm hlau nchuav ua ntej carburization yog 1600 ℃, thiab tus nqi nruab nrab tom qab carburization yog 1299 ℃. Feem ntau, N2 yog siv los ua qhov nruab nrab rau graphite dav hlau carburization, tab sis nyob rau hauv kev lag luam cov qauv kev lag luam, nws yooj yim dua rau kev siv cua lim, thiab cov pa oxygen hauv cov cua compresses kom ua rau Co, qhov kub ntawm kev hloov pauv tshuaj tuaj yeem them rau ib feem ntawm qhov kub thiab txias poob, thiab cov pa rov qab ntawm CO yog qhov zoo rau kev txhim kho qhov tseeb tshwm sim ntawm carburization
