Electrode factory

#1
Prebaked carbon electrode
Prebaked carbon electrode , also called Carbon electrode are applied for the production of silicon metal and ferroalloys as they have peculiar characteristics.

Prebaked carbon electrode is used as electric current conductors in electric furnaces where silicon metal, nonferrous metals and ferroalloys are produced.

Requirements for carbon electrodes are:
- Good electrical conductivity: in order to withstand the high current density required by the metallurgical process.
- Good thermal conductivity: to minimize the temperature differences inside the electrodes when in use and, consequently to reduce internal stresses.
- Good mechanical strength: to withstand the stresses when in use.
- High level of chemical purity: to avoid polluting the end product.
- Reliable joint: to ensure current flow continuity in the electrode column.
- Easy mounting: to facilitate and speed up operations for the lengthening of the electrode column.
- Accurate machining on the external surface on the joints: to avoid problems when the joint passes through the holding clamps and the contact shoes and to facilitate the current flow from one electrode to the following one.

Peculiar characteristics of prebaked carbon electrode for silicon metal production are:
- Carry large amounts of electrical current.
- Withstand very high temperatures.
- Keeping good mechanical properties under above-described circumstances.
Technical specification:
Type S grade G grade
Bulk density g/cm3 (min) 1,58 1,58
Resistivity 碌惟路m (max) 35 30
Ash content % (max) 4,5 4,0
Compressive strength MPa (min) 6,5 6,5
CTE 10-6/鈩?/strong> (max) 4,5 4,0
Diameter mm Nominal Length Standard Length Short Length
max min max min
桅700/桅780/桅800/桅850 1950 +50 -50 -50 -200
桅870/桅900/桅920/桅960 1950 +50 -50 -50 -225
桅960/桅1020/桅1060/桅1140 2550 +100 -100 -100 -275
桅1060/桅1140/桅1272 2850 +100 -100 -100 -275
Diameter (mm)
S-Grade Carbon Electrode G-Grade Carbon Electrode
Allowable Current Load (A) Current Density
(A/CM2) Allowable Current Load (A) Current Density
(A/CM2)
700 25300 6.6 29200 7.6
780 32500 6.6 36200 7.6
800 33100 6.6 38100 7.6
850 36200 6.6 41900 7.4
870 38000 6.4 43900 7.4
900 40600 6.4 47000 7.4
920 42500 6.4 49100 7.4
960 46300 6.4 53500 7.4
1020 50600 6.2 57900 7.1
1060 54600 6.2 62600 7.1
1140 62200 6.1 71400 7.0
1146 62800 6.1 72100 7.0
2405 66100 5.8 76300 6.7
1272 73600 5.8 85100 6.7
1321 73900 5.4 84900 6.2
1400 80000 5.2 92300 6.0Electrode factory
website:http://www.hyyj-saf.com/electrode/