Comparing BTO And VTO Hydrogen Reduction

Fine grain carbide due to its high toughness, high wear resistance and good high temperature strength, excellent performance in recent years, been increasingly widespread attention, the demand and applications continue to expand. Ultrafine tungsten powder, tungsten carbide powder is an important raw material for the production of fine-grain carbide powder particle size and uniformity strongly affect the performance of Carbide, how to produce a fine particle size and uniform ultrafine tungsten powder is made Take the key to ultra-fine grain carbide.

Performance tungsten oxide materials will directly affect the reduction behavior of tungsten powder and final product performance, therefore, the question about what kind of material most suitable for the production of ultra-fine tungsten powder materials science has always been of widespread concern workers. Although blue tungsten by hydrogen reduction process is currently taking the most widely used tungsten powder raw materials, as long as at low temperatures, dry hydrogen, high hydrogen flow conditions thin material layers, you can use hydrogen reduction process for the production of tungsten blue ultrafine tungsten powder, but too high hydrogen flow rate and the material layer is too thin will lead to increase in cost. Purple tungsten in recent years to develop a tungsten oxide product, its phase component WO2.72 or W18O49, due to its unique properties, in the production of ultra-fine tungsten powder reflects its superiority, many materials and metallurgy scholar have carried out their research.

Under the same conditions, the comparison of the performance difference between blue and purple tungsten tungsten production of hydrogen reduction of tungsten powder. The results show that: Compared with blue tungsten, tungsten powder size purple tungsten produced finer and more uniform, and tungsten powder particle size less affected by the amount of loading boats and hydrogen flow. And from the microscopic structure and mechanism of hydrogen reduction of raw materials analyzes the causes of both tungsten powder raw materials to produce different size and uniformity of the difference.

Tungsten Powder Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-powder.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

• < Prev
• Next >