Tungsten Boat

Tungsten boats are mainly made of high-purity tungsten. This metal is known for its high melting point, high density, high strength, high hardness, and good corrosion resistance and wear resistance. The shape of the tungsten boat is usually a boat shape, and sometimes it is customized according to the specific application requirements. The structure typically includes one or more heating elements to provide the required heat during vacuum coating or other high temperature processes.

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Furnace accessories

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monfils.chen@mtwkj.com

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Product characteristics

High tungsten content: the tungsten content of tungsten boat is as high as 99.95, so it inherits most of the physical and chemical properties of metal tungsten.

2, high density: tungsten boat has a density of up to 19.3 g/cm, which makes it have a unique advantage in some applications.

3. High melting point: The melting point of the tungsten boat is very high, which makes it still maintain stable performance in high temperature environments.

4, high strength and large hardness: tungsten boat with high strength and large hardness, can withstand greater mechanical pressure and impact.

Low evaporation rate and low vapor pressure: The tungsten boat has a low evaporation rate and low vapor pressure, which makes it stable for a long time in a high temperature environment.

6, high temperature resistance: tungsten boat can work at extremely high temperature, and will not melt or deform.

7, wear resistance and corrosion resistance: tungsten boat has good resistance to a variety of corrosive media, and is not easy to be worn.

8. Good electrical and thermal conductivity: Tungsten boat has excellent electrical and thermal conductivity, which makes it widely used in the fields of electronics and vacuum coating.

Product use

Vacuum coating:

In the vacuum coating process, tungsten boats are usually used as evaporation sources. By placing the material to be plated (e. g. metal, alloy or compound) in a tungsten boat and heating it to its evaporation temperature, the material will evaporate into a gas and deposit on the substrate, forming the desired thin film. Tungsten boat is an ideal evaporation source material because of its high melting point, good electrical and thermal conductivity and low evaporation rate.

Tungsten boats are widely used in various vacuum coating processes, such as electron beam evaporation, resistance heating evaporation and laser evaporation. These processes are widely used in the preparation of optical films, decorative films, functional films, etc., involving optics, electronics, decoration and other industries.

High temperature heating:

Tungsten boats also have important applications in the field of high temperature heating. Due to its high melting point and high strength, the tungsten boat can withstand extremely high temperatures and maintain stable performance at high temperatures. This makes the tungsten boat an ideal heating element for high temperature furnaces, sintering furnaces and other equipment.

In the sintering process of ceramics, glass, metal and other materials, the tungsten boat can provide a stable high temperature environment, promote the densification and crystallization of the material, thereby improving the performance of the material.

Other Applications:

In addition to vacuum coating and high temperature heating, tungsten boats are also used in some special fields. For example, in nuclear fusion reactions, tungsten boats are used as neutron absorbing materials to capture and reduce neutron damage to equipment.

In addition, the tungsten boat can also be used as a catalyst carrier or reaction vessel for some special chemical reactions, and is favored for its good corrosion resistance and stability.