The TD mold surface super-hardening treatment technology of automobile mold adopts the principle of TD (Thermal Diffusion Carbide Coating Process), which is to put the workpiece in borax molten salt and its special medium at a certain processing temperature. The metal atoms in the molten salt react with the carbon and nitrogen atoms in the workpiece and diffuse on the surface of the workpiece to form a metal carbide layer of vanadium, niobium, chromium, titanium, etc., ranging from a few microns to more than 20 microns.
1. Significantly increase the service life of tools and molds or workpieces, and save production costs or operating costs.
2. Significantly improve the appearance of the product, increase the uniformity of the product size, and enhance the product quality.
3. Significantly save maintenance time and labor intensity, and reduce the loss caused by maintenance shutdown.
4. The friction coefficient is reduced, the anti-seizure performance is greatly improved, and there is no need for lubrication or reduction of lubrication or no need to use advanced lubrication products.
Features of TD processing for automobile molds:
With the development of society (automobile industry), people have higher requirements in all aspects. In order to meet this demand, the requirements for the safety performance of automobiles are getting higher and higher, and the steel used in automobiles is getting stronger and stronger, and the requirements for the quality of molds are constantly improving. The mold is easy to strain during the production process. In order to solve the problem of mold strain, we must strengthen the surface of the automobile mold. There are many types of enhanced processing, and TD processing is currently the most suitable and practical.
After the mold is processed by TD, it will greatly improve the wear resistance of the mold surface and the toughness of the base material. Under normal conditions, compared with ordinary molds, its service life will be increased by more than 8 times; at the same time, the defect rate of the product will be reduced by 10% The above; also saves the number of repeated mold repairs and mold installations, and more importantly reflects the savings in production costs from all aspects.