Q: What are the purposes and methods of hardening and strengthening the mold?

Answer 1: The purpose of mold hardening and strengthening is to increase the service life of the mold. The general method used is nitriding. The advantage of nitriding is that the mold has a low heating temperature and the mold is not easily deformed. In particular, some molds that have been tested before the heat treatment are particularly important. If the car mold is quenched as usual, the tried mold will not be assembled. This method is often used in die casting molds.

Answer 2: If your mold has been formed, fear that the production side will make a hole in the mold parting surface, I can give you the simplest method, that is, nitriding. The price is cheap and easy to use, but only if your mold has been formed and not processed.

Answer 3: Regardless of the various molds, the purpose of surface hardening and strengthening is to extend the life. The most common method now is surface bonfire treatment, but the effect is limited. Secondly, carburizing treatment can improve a lot. Then there is the surface coating effect. The best coating material that is currently widely used is titanium. The best coating for automotive molds is CVD. It is the ideal coating material for diamond hardness, but it is expensive.