Ua cov txheej txheem rau cov khoom siv graphite
1) Graphite immersed nyob rau hauv cov roj. Ua ntej ua cov khoom siv graphite, nws yuav tsum muab tso rau hauv cov roj cav rau ob peb teev kom tso cai rau cov roj kom nkag mus rau cov khoom siv graphite, kom cov hmoov tshauv yuav tsis ya thaum lub sijhawm machining thiab thaj chaw du tuaj yeem tau txais.
2) Xim kab. Tom qab cov electrode yog ntxhib-txheej txheem ntawm cov txheej txheem saum npoo, txheej txheej dawb ntawm cov xim dawb yog txau rau saum npoo ntawm kab sau ua ntej sau ntawv, kom cov kab ntawv tau meej thiab siv tshuab.
3) Ua haujlwm ntawm machining.