Silicon Carbide Manufacturer

From the perspective of production technology, black silicon carbide is mainly made of quartz sand, petroleum coke and silica as raw materials, and then smelted in a resistance furnace at high temperature. The hardness of black silicon carbide is very high, and the hardness is between corundum and diamond. Black silicon carbide is widely used as abrasives and refractories due to its high hardness, good thermal conductivity and small expansion coefficient.

As a silicon carbide manufacturer, in order to produce high-quality black silicon carbide, in addition to mastering the correct smelting method, it is also necessary to strictly control the quality of raw materials. Black silicon carbide also has certain requirements for various production raw materials. For example, the silicon dioxide in siliceous raw materials should be slightly lower, and the content of fixed carbon in petroleum coke should be as high as possible. The ash content should be less than 1.2%, and the volatile content should be less than 12.0%. The particle size of petroleum coke should also be controlled between 2mm and 1.5mm. When producing black silicon carbide, the reason why wood chips are added is mainly to adjust the air permeability of the furnace charge with wood chips. However, the amount of sawdust should also be controlled. Generally, the amount of sawdust added is about 3% - 5%.

The above is to control the quality of raw materials during the production of black silicon carbide. Only by paying attention to the raw materials can we produce qualified black silicon carbide. Our company has been engaged in the production and sales of black silicon carbide for many years, with rich experience and mature production technology. If you want to buy black silicon carbide, please consult our company.