采用优质阴极碳块是完善和提高我国大型预焙槽炼铝技术，增强铝电解工业竞争力的关键因素之一。
To enhance the competitiveness of our aluminium industry, one of the key factors is to catch up the world advanced level of cathode technique and further improve our aluminium smelting technology.
在铝电解方面，氮化硅结合碳化硅远较阴极碳块耐腐蚀、抗氧化、电阻率高，是理想的电解槽侧壁内衬材料。
Compared with carbon, silicon nitride bonded silicon carbide has better oxidation resistance and bigger resistance ratio, which make it be a perfect line material of al electrolysis cell.
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