What is the process of making silicon carbide rods?
Release time:
2022-07-06
Silicon carbide rods What is the process like?
Since the discovery of silicon carbide, it has been studied and learned by more and more people. With the development of science and technology and the upgrading of research, silicon carbide has been made into various silicon carbide products, and many sintering methods have been derived. Different sintering methods have different silicon carbide product properties. Silicon carbide rods are one of them, mainly used for high-temperature sintering of roller kilns for daily porcelain, sanitary porcelain, building porcelain, and magnetic materials. Today, I will mainly share with you silicon carbide rods and the advantages and disadvantages of several sintering methods of silicon carbide:
Processing of silicon carbide rods
For roller kilns Silicon carbide rods The technology is made of a mixture of green silicon carbide micropowder, carbon ink, graphite powder, and a high binder. It is made by metal silicon impregnation and can be cast, extruded, and press-formed. Silicon carbide rollers, with their unique formula and unique silicon carbide roller technology, are 3-5 times better than alumina rollers in terms of thermal shock resistance and high-temperature load resistance, and the price is only 20-20% of recrystallized silicon carbide.
What are the advantages and disadvantages of several sintering methods of silicon carbide?
The reaction sintering of silicon carbide is a green compact composed of -SiC and graphite powder in a certain proportion. After heating, it reacts with liquid Si or gaseous Si to generate -SiC. This method has a low sintering temperature (14001600), can produce complex products, but has 8% to 20% free silicon remaining in the blank. Therefore, manufacturers of silicon carbide linings believe that this limits the high-temperature mechanical properties of silicon carbide and its application in strong acids and strong alkalis;
Hot pressing and high-temperature isostatic pressing can prepare high-density silicon carbide ceramics. The sintering temperature is between 1500 and 2100. Therefore, manufacturers of silicon carbide linings find it difficult to manufacture products with complex shapes and high costs;
How to properly maintain silicon carbide desulfurization nozzles?
Silicon carbide desulfurization nozzles are generally used in operating environments below 1380 degrees Celsius. When the sheath material of the silicon carbide desulfurization nozzle is sprayed in oxygen at 1300 degrees Celsius, a layer of silicon compound protective layer will be formed on the crystal surface of the silicon carbide desulfurization nozzle. As the protective layer thickens, it can avoid the continuous bonding of the internal silicon carbide desulfurization nozzle, giving it better chemical bonding resistance.
Silicon carbide rods The factory introduces that the formed protective film has excellent application effects, so it can play an important role in acid resistance, alkali resistance, and composite resistance. During use, attention should also be paid to avoiding large impacts on it, and also avoid being scratched by sharp objects.
Silicon carbide rods: In daily use, only by doing a good job of maintaining and maintaining silicon carbide desulfurization nozzles can the reuse rate be better improved, the service life extended, the use cost reduced, and higher economic benefits brought to users.
That's all for today's introduction of silicon carbide rods. Thank you for watching, and see you next time.
