Types and properties of powder prepared by vacuum

by Izzy X. Product specialist

Thermal spraying is a surface strengthening technology. It uses a heat source in the form of electric arc, plasma arc, gas-oxygen, etc.

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Thermal spray powders are mostly alloy powders
High temperature alloy powder
Electrical contact material
Stainless steel powder, aluminum alloy powder, etc.
Solder

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Review on Types and properties of powder prepared by vacuum

Stainless steel powder, aluminum alloy powder, etc.
Almost all stainless-steel powders are produced by the atomization method. The stainless-steel powder atomized with nitrogen or hydrogen has a spherical shape, high loose packing density, good fluidity, and low oxygen content. Adopt special consolidation methods, such as hot isostatic pressing or hot injection extrusion process to obtain fully dense products. It is also used in injection molding and thermal spraying processes.
Because metal aluminum is extremely easy to oxidize, ordinary gas atomized powder spraying can easily cause the impurity content in the aluminum alloy powder to exceed the standard. Moreover, the aluminum powder has high activity and is very easy to ignite or explode. Therefore, vacuum smelting is generally used, and inert gas is used to protect powder.

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