2018/11/01

【Chinatungsten】tungsten-copper-sol-gel-method


Introduction
Tungsten copper sol gel method with hydrolysis and polymerization basic reaction, which are in preparation of high purity at a low temperature, evenly distributed, high chemical activity of single and multi-component mixtures. It is a metal alkoxide and its compounds as raw materials, under certain conditions hydrolysis medium and catalyst - the polycondensation reaction solution into a gel, and then by drying and heat treatment method of obtaining synthetic materials.

Processing
Compared with conventional sintering method, sol gel method products with high uniformity and high purity, the temperature is 400~500 lower than conventional sintering method, the reaction process is easy to control, can greatly reduce the side effects of the new phase formed. At the same time, this kind of method solve the mechanical mixing powder prepared tungsten copper composite powder particle size is too large, mechanical impurities, tungsten copper mixing uneven and other issues.

No comments:

【Chinatungsten】tungsten copper electrolytic process

Processing In the process of electrolyzation, use a certain proportion of NaCl, KCl, Na2WO4 and CuO4 mixed solution and graphite as el...