The Properties And Applications of Tungsten Powder

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Tungsten powder The raw material used for the preparation of tungsten processing products, tungsten alloys, and tungsten goods is powdered tungsten.

Tungsten Powder Properties

Among all metals, the hardness of tungsten rods is the highest. The hardness ranges from 200-250 for sintered rods, while that of rods passed through the rotary hammer ranges between 350-400. Tungsten is dissolved in an acid mixture of hydrofluoric, nitric and sulfuric acids. It is then melted using a sodium hydroxide and carbonate mixture.
Tungsten is a grayish-black metal that has a metallic sheen (cubic crystals with a body-centered). Tungsten powder has a slight solubility in nitric and sulfuric acids, as well as aqua regia. However, it is not soluble in water or hydrofluoric and potassium hydroxide.

Tungsten Powder Preparation

Tungsten is produced by hydrogen reduction. The preparation of tungsten powder using the hydrogen reduction method can be divided into two steps: in the first step, the tungsten dioxide is converted to tungsten dioxide at a temperature between 500 and 700; the second is done at 700-900. Tungsten is converted to tungsten. The reduction reaction takes place in an electric tube or rotary furnace.

The properties of reduced powder (such purity, particle sizes, particle size composition etc.) depend mainly on the reduction process. It is mainly determined by the reduction process. In a tube oven, when reducing the tungsten, the main process variables that affect the rate of reduction are the reduction temperatures, the loading of tungsten Oxide in the burning boat and the speed of the boat. The particle size increases as the temperature of reduction rises.

This method is used in addition to the hydrogen-reduction method. The tungsten obtained from this method has a low purity. A research project on the reduction tungsten with metals such as aluminum, calcium and zinc is also underway. Research is also underway. This method can produce ultra-fine tungsten particles with a particle size less than 0.05mm.

Tunsten Powder Applications

Tungsten is used mainly in the productions of ferro tungsten and cemented carbide. Tungsten, chromium molybdenum and cobalt are combined to form an alloy which is heat-resistant, wear-resistant, and used for gas turbine blades, combustion tubes and tooling. Tungsten, tantalum niobium molybdenum etc. This alloy is refractory.
High-density tungsten-nickel-copper alloy is used as a radiation shield. Metal tungsten wires, rods, sheets, etc. These are used for the production of electronic tubes, light bulbs and electrodes for welding. Tungsten can be sintered to create filters with different porosities.

Tungsten Powder is the main raw materials for powder metallurgy and alloys. Pure tungsten is processed into materials like wires and rods. It can also be used to make tubes, plates, and other products. Tungsten powder can be mixed with other metal powders to create various tungsten alloys, including tungsten and molybdenum alloys, tungsten and rhenium, tungsten and copper alloys, as well as high-density alloys. Another important use of tungsten is the preparation of cemented carbide products, such as milling tools, drill bits, and turning tools.

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