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Manufacturing Process Of Silicon Carbide

The production process, technical equipment and energy consumption per ton of silicon carbide smelting have reached the world's leading level. The quality level of black and green silicon carbide blocks is also world-class.

The gap between silicon carbide and the world's advanced level is mainly concentrated in four points:

1. Large-scale machinery and equipment are rarely used in the production process, many processes are completed by manpower, and the per capita silicon carbide output is low;

2. In the deep processing of silicon carbide products, the quality management of grain size sand and fine powder products is not precise enough, and the stability of product quality is not enough;

3. Carbon monoxide is directly discharged during smelting. Major foreign enterprises have basically realized closed smelting, while China's silicon carbide smelting is almost all open smelting, and all carbon monoxide is directly discharged.

4. There is a certain gap between the performance indicators of some cutting-edge products and similar products in developed countries;

In the smelting process, carbon monoxide is directly discharged, and foreign major enterprises have basically realized closed smelting, while silicon carbide smelting is almost all open smelting, and carbon monoxide is directly discharged. China has more than 200 silicon carbide smelting enterprises with an annual production capacity of more than 2.2 million tons (including 1.2 million tons of green silicon carbide and about 1 million tons of black silicon carbide).


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