Tungsten Powder: Applications and Methods of Production

Tungsten Powder

The powdered metal tungsten is called tungsten powder. Powdered tungsten products and tungsten alloys are manufactured using this raw material. Here is a list of five of the most commonly used tungsten powder applications in businesses and daily life.

Applications Tungsten Powder

It is an important raw material for making tungsten carbide powder, one of the most important applications for tungsten powder. Cemented carbides with ultra-fine grains that have appeared recently, for example, are excellent cutting tools for difficult materials including titanium alloys, nickel-based alloys, heat-resistant steels, and drill-based alloys, among others, and are commonly used for trying to turn tools, cutting tools, screwdrivers, and molds.

In addition to being able to form rods, wires, tubes, sheets, and other shaped products from tungsten powder, this powder can also be used to produce processing materials.

Combining powdered tungsten with other metal powders and following a specific forming procedure can produce various alloys of tungsten.

In the thermal spray welding technique, tungsten powder can also be employed as thermal spray tungsten powder. Even though it is difficult to directly melt tungsten metal powder with a gas-burning flame, the melted self-fusible alloy may securely connect the tungsten powder to the blank after the flame melted the added self-fusible alloy.

Sintered tungsten powder can be used in a variety of permeability filters.

Methods of Producing Tungsten Powder

Hydrogen Reduction Method

To make Tungsten Powder, hydrogen is used to reduce tungsten trioxide or ammonium para tungstate. The step is to prepare tungsten powder by hydrogen reduction technique is commonly divided into two stages:

Wrought iron trioxide is reduced to tungsten dioxide in the first step at a temperature of 500-700 ° C. Wrought iron is reduced to tungsten powder in the second step at temperatures ranging from 700 to 900 ° C. The reduction reaction is frequently carried out in an electric furnace, either tube-type or rotary.

Method of Carbon Reduction Using Tungsten Oxide

Aside from the hydrogen reduction technique, a tungsten oxide carbon reduction process was employed in the manufacturing of tungsten powder, with a reduction temperature of more than 1050°C. The purity of the tungsten powder achieved by this process is poor.

Further, there is a technical study underway examining ways to decrease tungsten oxide by utilizing calcium, aluminum, zinc, and other elements.