At present, with the continuous development of industrial technology, silicon nitride ceramics have been widely used. The powder preparation of silicon nitride ceramics requires high-purity raw materials silicon powder and nitrogen, and the nitriding process requires strict control of temperature, time and air pressure. The technical standards of the entire process are very high, and the quality management requirements are very high. Then some people will ask why silicon nitride ceramic structural parts are so expensive, so now come to understand the reason for the high price of silicon nitride ceramic structural parts with Jun Jie ceramics.
1, the cost of silicon nitride ceramic powder is high. Powder preparation requires high-purity raw materials silicon powder and nitrogen, and temperature, time and air pressure must be strictly controlled during nitriding. The finished powder is then ground at high energy. In this whole process, the technical requirements are quite high. The need to achieve high purity, nanoscale particle size, and a high proportion of phase purity, the equipment and technology and even quality management requirements are very high.
2 Silicon nitride ceramics cost high.
1) High sintering cost. There are generally three methods for sintering silicon nitride, reaction sintering, non-pressure sintering and pressure sintering. From the perspective of ceramic evaluation, the quality of the three methods increases in turn. Each of the three methods has its own advantages. The higher the quality of ceramics, the higher the requirements for equipment, technology and management, which are costs.
2) The main reason for the high processing cost of silicon nitride ceramics is because. Silicon nitride hardness is very high, need to use diamond abrasive processing, if you need special shape processing, need special equipment, which is the cost. So the price of silicon nitride products is more expensive. But the performance is also very powerful.
Powder preparation requires high-purity raw materials silicon powder and nitrogen, in the process of nitriding need to strictly control the temperature, time and air pressure, the technical standards of the entire process are very high, and the quality management requirements are very high. Silicon nitride finishing cost is high. Because the hardness of silicon nitride is too high, it needs to be processed with diamond abrasive, and special equipment is needed if special shape processing is required.
Therefore, the price of silicon nitride ceramic structural parts is expensive, but the performance is very stable, if it can be mass-produced, the cost can be greatly reduced. Silicon nitride ceramics have great potential in some special fields, and the market prospect is unlimited. For the reason of the high price of silicon nitride ceramic structural parts, Junjie Ceramics is finished for everyone to share, Junjie ceramics specializing in the production of alumina, titanium oxide, zirconia, silicon carbide special ceramic parts. The company takes high starting point, high quality as the standard, strict material selection and production process standardization, to ensure the stability of product quality, products are widely used in textile, electronics, electrical appliances, machinery, aviation, aerospace and other fields.
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