1. Sai nrawm ua nrawm:Nyob rau hauv ib txwm muaj xwm txheej, cov kev ua tshuab ua ceev ntawm graphite tuaj yeem yog 2 txog 5 zaug sai dua tooj liab; Thaum lub sij hawm tso tawm kev ua haujlwm nrawm yog 2 txog 3 zaug sai dua li tooj liab, thiab cov khoom siv tsis tshua muaj txiaj ntsig: nws tau pom tseeb zoo hauv kev ua cov pob hluav taws xob nyias ntxiv; Qhov muag muag taw tes tooj liab yog ib ncig ntawm 1000 degrees, uas yog yooj yim deformed los ntawm tshav kub; Lub sublimation kub ntawm graphite yog 3650 degrees; Lub thermal expansion coefficient tsuas yog 1/30 ntawm tooj liab.
2. Lub teeb ci ntsa iab:Qhov ceev ntawm graphite tsuas yog 1/5 ntawm tooj liab. Thaum cov hluav taws xob loj yog siv rau kev ua hluav taws xob tso tawm, nws tuaj yeem txo lub nra siv hluav taws xob rau cov cuab yeej (EDM); Nws yog qhov tsim nyog rau cov ntawv thov hauv cov pwm loj.
3. Kev tawm zaub mov tawm me dua;Txij li thaum cov roj sib txawv kuj muaj c atoms, thaum lub sij hawm tso tawm, cov pa yeeb yaj kiab cov roj ntsha hauv lub ntsej muag, kev them nyiaj rau qhov ploj ntawm graphip electrode.
4. Tsis muaj burrs;Tom qab cov hluav taws xob tooj liab tau ua tiav, lawv tseem yuav tsum tau txiav manually kom tshem tawm burrs, hos cov nqi ntau thiab ua rau nws yooj yim kom paub cov kev tsim tawm paub.
5. Graphite yooj yim dua rau grind thiab Polish;Txij li thaum lub txiav tsis kam ntawm graphite tsuas yog 1/5 ntawm tooj liab, nws yog qhov yooj yim dua rau grind thiab polish manually.
6. Cov nqi khoom qis dua thiab cov nqi ruaj khov ntau;Vim tias qhov nce hauv tus nqi tooj liab nyob rau hauv xyoo tsis ntev los no, tus nqi ntawm isotropic graphite yog tam sim no qis dua tooj liab. Nyob rau tib lub ntim, tus nqi ntawm Toyo Tanso cov khoom lag luam thoob ntiaj teb yog 30% qis dua tus nqi tooj liab, thiab tus nqi tsawg dua {}} sij hawm tus nqi hloov.