Method for Producing Extra-coarse Tungsten Powder

The present invention belongs to the technical field of metallurgy, in particular to provide a process for producing ultra-coarse tungsten powder method.

Wherein the intermediate product is ammonium tungstate solution of sodium tungstate and tungsten hydrometallurgy as raw material, by mixing the two solutions, concentrated by evaporation and drying by heating to obtain precursor, adding a certain proportion of the precursor thin tungsten powder recycle material, subjected to a hydrogen reduction in a tube furnace, and then washed with water to remove the sodium ions by means of ultrasonic waves, filtered and dehydrated with industrial alcohol, and finally dried under vacuum and sieved to obtain extra coarse tungsten powder, screening out the fine tungsten powder Returns the raw material recycling. The present invention is a simple process equipment, reducing the temperature is low, the reduction time is short, high efficiency, low cost, can be prepared in a particle size of 60 ~ 150μm ultra coarse tungsten powder, crystallized complete, spherical, good formability, high purity.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

The above is reproduced from: Application Technology Network, if in doubt, please contact the content belongs website.

• < Prev
• Next >