The quality of the mold surface has a great impact on the service life of the mold and the appearance quality of the parts. Therefore, before the mold is used, it is also the final stage of mold manufacturing. Usually, grinding and polishing are required to improve the mold surface quality. After grinding and polishing, many mold manufacturers and mold users also use surface treatment technology to extend the service life of the mold, improve the processing quality of the workpiece, reduce the cost of mold use, and improve production efficiency.
At present, there are many kinds of surface treatment technologies on the market, and the formed surface coatings are also various. We select three types of representative coatings according to the history of surface treatment technologies and compare them as follows:
Important parameter description:
1. The film-forming temperature will affect the quality of the original steel. Higher temperatures will cause the steel to have an annealing or tempering effect and reduce the hardness and toughness of the substrate.
2. The film-forming technology determines whether the film is easy to fall off. Generally, newer technologies use ion implantation to embed the film on the surface of the substrate, thereby improving the adhesion of the film to the base.
3. The hardness of the film determines the wear resistance of the plated parts
4. The low friction coefficient of the film surface is beneficial to the lubrication of the surface of the workpiece and is also a factor to improve the wear resistance