Views: 0 Author: Site Editor Publish Time: 2022-12-16 Origin: Site
Tungsten powder is widely used in industry and our daily life. As a kind of refractory alloy powder, how is Tungsten Alloy Powder produced?
l What is tungsten powder?
l How is tungsten powder produced?
l What is the use of tungsten powder?
Tungsten Alloy Powder is metal tungsten powder. It is the main raw material for processing powder metallurgy tungsten products and tungsten alloys. In this article, let's take a look at the uses and production methods of tungsten powder. Tungsten products are made from tungsten powder rather than through traditional melting and casting manufacturing processes. This is due to the extremely high melting point of the powder. The technique, known as tungsten powder metallurgy, involves pressing powder into parts, sintering it, and then machining it into the desired shape. High-quality powder is an important part of tungsten alloy production. The properties of the powder affect the properties in subsequent manufacturing processes, such as pressing and sintering. This affects the quality of the final tungsten alloy part.
1. Tungsten Alloy Powder is classified by chemical (purity), physical (shape, particle size, etc.) and process properties (density, fluidity, etc.). The properties of the powder may be affected and in some cases controlled by the production process.
2. tungsten powder is mainly obtained from high-purity tungsten oxide by hydrogen reduction. Oxides are produced using ammonium paratungstate (APT). Tungsten trioxide and tungsten oxide blue are often starting materials. This reduction takes place in the propulsion furnace. The powder is passed through the furnace in a boat or rotary furnace. These furnaces have many temperature zones, controlled between 600 and 1100°C. Hydrogen is a reducing agent and also removes the water formed.
3. The production of tungsten powder by reducing tungsten oxide with hydrogen is a unique process. It facilitates the production of any powder with an average particle size between 0.1 and 10 µm. Due to the chemical vapor transport of tungsten, individual tungsten particles are formed during the reduction process. This deposition process is responsible for the final powder properties.
1. Used as a raw material for the manufacture of tungsten carbide powder. This is one of the important uses of tungsten powder. The ultra-fine-grained cemented carbides that have appeared in recent years are good tools for cutting titanium alloys, heat-resistant steels, nickel-based, drill-based alloys and other difficult new materials, and are specially used for turning tools, milling tools, drills, and molds.
2. Pure tungsten powder can be made into materials suitable for processing, such as wire, rod, pipe, plate and other products with certain shapes.
3. Tungsten powder is mixed with other metal powders, and after a certain molding process, it can be made into various tungsten alloys, such as tungsten-molybdenum alloy, tungsten-rhenium alloy, tungsten-copper alloy, high-density tungsten alloy, etc.
4. Tungsten powder can also be used as thermal spray tungsten powder in thermal spray welding process. The principle is that although it is difficult to directly melt the metal tungsten powder with a gas burning flame, after the flame melts the added self-fluxing alloy, the molten self-fluxing alloy can firmly bond the tungsten powder to the billet.
5. Tungsten powder can be sintered into filters of various porosity.
If you are looking for a supplier of refractory alloy powder with good quality and reasonable price, Guangzhou Sailong Additive Manufacturing Co., Ltd. is a good choice.
