Graphitization txheej txheem hauv kev tsim cov khoom graphite

Graphitization yog hais txog cov txheej txheem kev kho cua kub kub uas cov khoom siv roj ua kom sov siab tshaj 2300 degree hauv kev tiv thaiv nruab nrab ntawm cov hluav taws xob kub kub kom hloov cov amorphous carbon nrog cov txheej txheem tsis zoo rau hauv peb-seem xaj graphite crystalline qauv. .

1. Lub hom phiaj thiab kev ua haujlwm ntawm graphitization

-Txhim kho cov hluav taws xob conductivity thiab thermal conductivity ntawm cov ntaub ntawv carbon (resistivity yog txo los ntawm 4-5 zaug, thiab thermal conductivity yog nce li ntawm 10 npaug);

-Txhim kho cov thermal vibration tsis kam thiab tshuaj lom neeg ruaj khov ntawm cov ntaub ntawv carbon (qhov linear expansion coefficient yog txo los ntawm 50-80 feem pua ​​);

-Ua kom cov khoom siv carbon muaj lubricity thiab tiv thaiv hnav;

-Tshem tawm cov impurities thiab txhim kho cov purity ntawm cov ntaub ntawv carbon (cov hmoov tshauv ntawm cov khoom raug txo los ntawm {{0}} 5-0.8 feem pua ​​​​rau txog 0.3 feem pua ​​).

2. Tnws realization ntawm cov txheej txheem graphitization

Lub graphitization ntawm cov ntaub ntawv carbon yog nqa tawm ntawm qhov kub siab ntawm 2300-3000 degree, yog li kev lag luam tsuas tuaj yeem pom tau los ntawm hluav taws xob cua sov, uas yog, hluav taws xob tam sim no ncaj qha dhau los ntawm cov khoom siv roasted,tnws roasted khoom nyob rau hauv lub cub tawg yog ob qho tib si ib tug conductor uas generates kub los ntawm hluav taws xob tam sim no thiab ib yam khoom uas yog rhuab mus rau high kub.

Tam sim no, lub tshuab hluav taws xob siv dav siv xws li Acheson graphitization rauv thiab sab hauv kub sib txuas (LWG) rauv. Cov yav tas los muaj cov zis loj, qhov kub thiab txias sib txawv thiab kev siv hluav taws xob siab, thaum lub sij hawm tom kawg muaj lub sij hawm cua sov luv, tsis tshua muaj hluav taws xob noj thiab tsis muaj zog, tab sis nws tsis yooj yim rau nruab cov pob qij txha.

Cov txheej txheem graphitization yog tswj los ntawm kev ntsuas qhov ntsuas kub los txiav txim siab lub zog hluav taws xob nkhaus haum rau qhov cua sov. Lub sijhawm fais fab tuag yog 50-80 teev rau lub qhov cub Acheson thiab 9-15 teev rau LWG rauv.

Graphitization siv hluav taws xob ntau, feem ntau yog 3200-4800KWh, thiab tus nqi ntawm cov txheej txheem suav txog li 20-35 feem pua ​​​​ntawm tag nrho cov nqi tsim khoom.

Kev tshuaj xyuas ntawm cov khoom siv graphitized: nto khob, ntsuas kev tiv thaiv.