The use of silicon carbide in today's range is still very wide, especially in the vigorous development of the science and technology market, the credit of silicon carbide is not to be underestimated, its main applications and industrial industries, the following small series for everyone to analyze the service life of silicon carbide and the application of the industry, we have a better understanding of silicon carbide.
First, the service life of silicon carbide
1, high temperature silicon carbide material synthetic materials include silicon carbide electrode, silicon carbide mold and silicon carbide products of three kinds, the three kinds of materials in the silicon carbide at high temperatures, silicon carbide is easy to occur oxidation combustion reaction, resulting in the material surface rubber carbon layer porosity increase and loose structure, affecting the service life.
Silicon carbide electrode due to high temperature arc will occur partial sublimation oxidation, will cause the continuous consumption of silicon carbide products, and even fracture, damage.
The loss rate of silicon carbide products will reach 40-60%.
2, silicon carbide products after the anti-oxidation coating impregnation and brushing treatment, the high temperature ZS-1011 silicon carbide excessive coating liquid can penetrate into the pores of silicon carbide products, empty the residual air in silicon carbide products, in silicon carbide products and silicon carbide products to form a layer of anti-oxidation protective film.
It is this layer of protective film that can effectively isolate the air directly in contact with silicon carbide products and occur oxidation reaction, will not crack and fall off in the high temperature change, so as to effectively delay the oxidation of silicon carbide products and extend the service life of silicon carbide products.
Second, the use of silicon carbide industry
1. Metallurgical mineral processing industry
Silicon carbide hardness is second only to diamond, wear resistance, is the impeller, pump room, wear-resistant pipe, cyclone, the ideal material for the lining of the mine, and the wear resistance of silicon carbide is rubber, cast iron service life 5-20 times, is also one of the ideal materials for the runway.
2, non-ferrous metal smelting industry
Because of its high temperature resistance, high strength, good thermal conductivity and impact resistance, silicon carbide is used as a high temperature indirect heating material, such as retort furnace, distillation furnace tray, aluminum electrolytic cell, copper furnace lining, arc plate for zinc powder furnace, thermocouple protection tube.
3. The steel industry
Use silicon carbide corrosion resistance, thermal shock resistance and wear resistance.
And good heat conduction characteristics can improve the service life of large blast furnace lining.
4. Green energy saving
Silicon carbide uses good thermal conductivity and thermal stability as a heat exchanger, the fuel consumption is reduced by 20% to 35%, the productivity is increased by 20 to 30%, and the wear resistance is 6 to 7 times that of ordinary wear-resistant materials.
5, building materials ceramics, grinding wheel industry
Silicon carbide using its excellent thermal conductivity, thermal radiation and high thermal intensity can not only reduce the carrying capacity of kiln, but also improve the carrying capacity and product quality of kiln, shorten the production cycle.
It is an ideal indirect material for ceramic glaze firing and sintering.