The characteristics of sodium carboxymethyl cellulose are prominent, in order to adapt to the application of various industries, the processing technology before use will also be changed, in order to make the structure of CMC-Na tight, outstanding characteristics, we need to change its sintering processing technology, and the low temperature sintering process is just in line with the specific operation is:
Hot pressing is to improve powder plasticity under high temperature conditions, with low molding pressure, low deformation resistance, high product density, excellent microstructure and other characteristics, because, reduce the sintering temperature of boron carbide can be used hot pressing sintering process. The research shows that boron carbide ceramics in the sintering temperature of 2000-2100℃, hot pressing 30-40Mpa conditions, has a better comprehensive performance, the relative density can reach 92-98%, the bending strength can reach 400-500Mpa.
Although the hot press sintering process can significantly reduce the sintering temperature and increase the density of the sintered body, the sintering temperature is still relatively high. In order to further improve the performance of sodium carboxymethyl cellulose, reduce the sintering temperature and reduce the production cost, people have combined liquid phase sintering and hot press sintering, and achieved remarkable results. Compared with simple hot pressing, the sintering temperature is lower and the density is higher.
In summary, sodium carboxymethyl cellulose through a special process to reduce the sintering temperature, so that its comprehensive performance, tightness, etc., is significantly improved, and its processing cost is low, can improve the use of efficiency, improve product quality.
