How much is suitable for tungsten carbide spray coating?

With the rapid development of high technology, the aviation industry constantly puts forward various material performance requirements cermet? In fact, most of the metal ceramics mentioned by airlines are composite materials, and the process components are not yet clear. However, most of them contain tungsten components, such as tungsten tungstate, tungsten aluminum ceramics, and other negative thermal expansion materials, which have their advantages and disadvantages. Different, of course not omnipotent. Returning to our topic, existing coating processes include tungsten carbide supersonic flame coating, hard chromium electroplating, tungsten carbide physical vapor deposition, and tungsten carbide explosive spraying Although these applications have achieved success in certain fields, they also have their limitations.

Carbon tungsten materials have high hardness, wear resistance, high temperature resistance, corrosion resistance and other characteristics, and are widely used in aerospace, petroleum, metallurgy, machinery and other fields. In general industrial applications, we call it hard alloy coating, which is usually made of tungsten carbide/iron as raw material and sprayed at supersonic speed on the surface of nickel or iron-based materials to form a protective layer, thereby increasing their wear resistance stroma. service life. The implementation of such processes is not cheap in principle, but compared to the cost of damaging and replacing the entire component, it saves a considerable amount of money. Surface enhanced coating is one of the eye-catching technologies in the field of aerospace engine research and development.

The thickness of tungsten carbide spray coating is more suitable. We still need to consider our own processing requirements and detailed wear resistance requirements Now we can consider that this type of processing provides more manufacturers, but manufacturers can still make a comprehensive confirmation of what kind of processing methods and detailed capital we provide The thicker the thickness, the higher the natural processing cost, and the choice of processing technology will also affect the cost, so a good overall comparison is crucial.

The thickness of the hard alloy spray coating is still related to the processing technology. Generally speaking, if vacuum evaporation is used, the thickness will become thinner, but if special equipment is used for spraying, the basic aviation thickness can reach 1mm. However, traditional processing methods generally control the thickness at 0.3-0.5mm, which still depends on our actual requirements. If it is only a general spraying treatment, because the hardness of carbonization itself is already very high, basically 0.1mm can also ensure good wear resistance.

Any type of spray coating on the surface must have a certain range, and different methods need to be used according to the processing methods and characteristics of metal reactions. We also need to consider the influencing factors of spray coating process characteristics, processing requirements, and so on.