what is tungsten carbide spray coating powder and how to spay

       

Spraying coat is a kind of coating method, which is applied on the surface of the coated object by spray gun or disc atomizer, dispersing into uniform and fine droplets by means of pressure or centrifugal force. It can be divided into air spraying, airless spraying, electrostatic spraying and various derivative ways of the above basic spraying forms, such as large flow low pressure atomization spraying, thermal spraying, automatic spraying, multi group spraying, etc.

Tungsten carbide powder (WC) is the main raw material for producing cemented carbide. It can be called wolfram carbide, or tungsten carbide. It is a black hexagonal crystal with metallic luster and similar hardness to diamond. It is a good conductor of electricity and heat. Tungsten carbide is insoluble in the mixed acid of water and hydrofluoric acid. Pure tungsten carbide is fragile, if a small amount of titanium, cobalt and other metals are added, the brittleness can be reduced. Tungsten carbide, which is used as steel cutting tool, is often added with titanium carbide, tantalum carbide or their mixture to improve the antiknock ability.

Specifications

Tungsten carbide powder formula: WC

Appearance: dark gray powder

Application: used for cemented carbide production materials; is widely used in high hardness and strength of industrial tools, wear-resistant parts. Such as metal cutting tools, drill bits, wear-resistant teeth, ceramic alloys, electronic contacts, etc.

Impurity content of WC powder: WC 10, WC 14, WC 18, WC 24, WC 30, WC40, WC 50, WC 70, WC 100, WC 140, WC 200

How to spray?

Before spraying, make preparations according to the chemical composition (coating grade, etc.) of tungsten carbide powder.

In engineering practice, tungsten carbide spraying is usually carried out in the form of layered operation.

In the process of operation, it is necessary to adjust or replace the mold in time due to the mechanical reasons. In the spraying process, the air supply, spraying speed, spraying quality and dosage should be judged or adjusted according to the actual situation.

Search for wococarbide for more information about spary coating powders.