Fais arc rauv taws graphite hluav taws xob rau arc rauv

Graphite cov khoom lag luam electrode

Fais arc rauv taws (EAF) graph Cov hluav taws xob no tsis yog ib yam nkaus xwb tab sis cov neeg tuaj koom ua haujlwm hauv cov txheej txheem metallurgical, tsim los ua kom muaj txiaj ntsig zoo thiab cov khoom lag luam zoo.

​Lub luag haujlwm muaj nuj nqi hauv EAF​

​Arc tiam: Cov duab graphite, muab tso rau 30-50 cm saum toj no lub txaj ntawm txaj, pib ib qho arc uas melts tus nqi. Rau EAF loj ({200+ hons), 600-7 electrents kov yeej 80-120 {- kais lub sij hawm<60 minutes).

​Kev tswj cua sov: Graphite cov thermal conductivity tiv thaiv thoob plaws hauv zos overheating (uas erodes lub taub) thiab me me me me (uas tau melting). Tapered tsim (1-2 degree) kom ntseeg tau tam sim no, tseem ceeb rau cov khaub ncaws sib txawv kub (1,550-1650 degree).

​Slag - kev sib cuam tshuam hlau: Tam sim no ntws induces edces so hauv molten da dej, txhim kho kev sib xyaw ntawm cov hlau thiab slag. Qhov no accelerates desulfurization (s<0.005%) and deoxidation (C reacts with O), improving steel purity.

​Kev Ua Tshwj Xeeb​

​Qhov loj me - kev sib cuam tshuam tam sim no: 100-200 hli (10-30 KA, (lab); 300-500 hli (30-80 ka, nruab nrab - Eas rized EAFS); 500-750 hli (80-120 Ka, Mega- EAFS).

​Cov txheej txheem tsim khoom: Ntsuab electrodes (graphite hmoov binder) yog extruded, ci (100℃(1,500-3,000 degrance los txhim kho crystallinity). Isostatic nias ua kom muaj kev sib dhos kom zoo nkauj (1.65-1.75 g / cm³) thiab lub zog.