Ejector TD treatment

HV：

2800-3200

Coating treatment is the abbreviation of thermal diffusion carbide coating treatment (r), the English abbreviation. Because this technology was first successfully developed and patented by Japan's Toyota Central Research Institute, it is also known as R or processing for short. It is also called molten salt infiltration metal in our country. Regardless of its name, its principle is to place the workpiece in a molten borax mixture, and form a metal carbide coating on the surface of the workpiece through high-temperature diffusion. The carbide coating can be carbide of vanadium, niobium, chromium, or It is its composite carbide, and the most widely used one at present is vanadium carbide coating.
The main characteristics of vanadium carbide coating are:
The hardness of the coating is high, which is much higher than that of nitriding and hard chromium plating, so it has much higher wear resistance and tensile resistance than these surface treatments. , corrosion resistance and other properties
Since it is formed by diffusion, the coating and the substrate have a metallurgical bond. The bonding force between the coating and the substrate is much higher than that of hard chromium plating and or coatings such as titanium plating. This point It is extremely important for applications in forming molds.