1.Introduction & Application
Aluminum cathode blocks :
Aluminum cathode material to distinguish between high -graphitic cathode carbon block and semi- graphitic cathode carbon block :
High graphitic cathode carbon blocks:
The high graphitic cathode carbon block high temperature electric calcined anthracite and artificial graphite pieces for the main raw material of the cathode carbon block , with characteristics of low resistance, conductive ability to adapt to the cathode conductive material in aluminum . based on the content of artificial graphite broken into GS -3 ( 30 %) , GS -5 ( 50 %) , GS -10 ( 100 %) and other products.
2.Physical and chemical properties of the high graphitic cathode carbon block :
| Model | Specification | |||||
| Real density (g/cm3) | Apparent density (g/cm3) | Electrical resistance (µΩ.m) | Ash (%) | Compressive strength (Mpa) | Standard | |
| ≥ | ≤ | ≥ | YS/T623-2007 | |||
| GS-3 | 1.94 | 1.56 | 33 | 5 | 24 | |
| GS-5 | 1.98 | 1.57 | 29 | 4 | 24 | |
| GS-10 | 2.08 | 1.59 | 21 | 2 | 26 | |
3.Semi- graphitic cathode carbon block
4.Introduction & Application
Semi-graphitic cathode carbon block use the high temperature calcined anthracite as main raw material , adding more than 20% graphite scrap ，then made of cathodes carbon block . With low resistivity, good conductivity and high strength, good resistance to erosion capability . Apply to do the cathode conductive material of the aluminum electrode slot.
5.Specification
| Model | Specification | ||||||
| Real density (g/cm3) | Apparent density (g/cm3) | Electrical resistance (µΩ.m) | Ash (%) | Compressive strength (Mpa) | Porosity (%) | Standard | |
| ≥ | ≤ | ≥ | ≤ | YS/T623-2007 | |||
| BSL-1 | 1.90 | 1.56 | 40 | 7 | 32 | 20 | |
| BSL-2 | 1.88 | 1.54 | 43 | 8 | 30 | 21 | |
