Supersonic Tungsten Carbide Coating for Injection Molding Machine Screws

The SX-8000 supersonic flame spraying system is a new type of HVOF system. Its basic principle involves atomizing kerosene thoroughly using an atomizing nozzle to produce a combustible mixture, which is then fed into the combustion chamber along with an oxidizer—oxygen. After being ignited by the ignition system, the high-temperature, high-pressure gas is further accelerated and burned through a Laval nozzle, generating a high-temperature, high-pressure supersonic flame jet. Meanwhile, the powder feeding system delivers powder materials from a low-pressure zone into the flame jet, where they are heated and accelerated before being sprayed onto the workpiece surface to form a high-quality coating.

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