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Graphite Electrodes from Petroleum Coke and Pitch
Graphite electrodes carry the current that melts scrap steel in electric arc furnaces. They are made from petroleum coke mixed with coal tar pitch as a binder. The paste is extruded and shaped, baked to carbonise the pitch, and then graphitised by heating to nearly 3000 °C, where the carbon atoms arrange themselves into graphite. Industrial electrodes reach 3.5 m long and 75 cm across.
高级
Factory process
说明
1
1
Mix the paste
Mix the paste
Mix petroleum coke with coal tar pitch, the binder.
此步骤所需材料：
石油焦1 as required
煤焦油沥青1 as required所需工具：
炭素糊混捏机2
2
Extrude and shape
Extrude and shape
Extrude the paste and shape it into electrodes.
所需工具：
炭素糊挤压机3
3
Bake
Bake
Bake the shapes to carbonise the pitch binder.
所需工具：
炭素焙烧炉4
4
Graphitise
Graphitise
Heat the baked carbon to nearly 3000 °C. At that temperature the carbon atoms arrange themselves into graphite.
所需工具：
石墨化炉此蓝图制作
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