The surface of precision stamping die coated with nano PVD coating can have very low friction coefficient and reduce processing force. The surface hardness of the mould coated with nano PVD coating can be increased by 5 to 10 times, and the surface wear can be greatly reduced, especially for high precision machining. The friction force of cold stamping and drawing die coated with nano coating can be significantly reduced, and the scratch and wear during processing can be significantly reduced. Therefore, the service life can be increased and the production cost can be greatly reduced.
advantage:
The friction coefficient decreases and the processing force decreases;
Improve the surface hardness and prolong the die life greatly;
Prevent product from scuffing and scratch and improve product quality;
It saves the trouble of unloading, polishing and reloading, and improves the efficiency;
Forming mould
Abrasive wear, adhesive wear and various forms of surface damage appear in metal forming production. In view of the above problems, Huijin technology selected suitable coatings to effectively solve the above problems. The coating has good lubricity and has achieved good results in metal forming industry.
Coating advantages
1. High hardness and high strength
The hard coating can achieve the hardness that traditional surface treatment can't reach, and effectively protect the mold surface with high wear resistance.
2. Good lubricity
Hard coating has very high hardness, but also has good lubricity and low friction coefficient. Excellent parameters help molding production to obtain ideal life.
In metal forming, the 'flow' of material in the mold will cause damage to the forming surface, and the good lubrication of the coating will reduce the wear of the important working area.
3. Repeat coating capability
After the coating reaches the expected life, the mold itself has no damage, and the coating can be repeated.
Nano PVD coating technology is a new technology between materials science, physics, electronics, chemistry, social and environmental science. The core technology is applied in metal processing, manufacturing and other aspects, which aims to promote the rapid development of modern cutting tools and manufacturing processing industry.
The PVD coating process used for different molds (plastic mold, metal stamping die, die casting mold, mold accessories, forming mold, etc.) and high requirements of mechanical wear-resistant and corrosion-resistant parts can significantly improve the surface hardness, wear resistance, corrosion resistance, heat resistance and lubrication of the products; Moreover, it can be convenient to remove film, greatly improve the quality (such as surface roughness, wear resistance, precision, etc.) and service life of molds and parts, so as to effectively play the potential of products.
In the process of using die, early failure often occurs. The failure factors are usually wear, corrosion, fusion, adhesion, etc. The problem is not only to delay the production cycle, but also greatly increase the production cost, thus affecting the competitiveness of enterprises. For this reason, the industry has launched different solutions, and PVD coating surface treatment technology is the most popular solution, which can solve the above problems most effectively.
PVD coating technology can be widely used in all kinds of wear, bite, corrosion, adhesion, fusion and other failure caused by tools, molds, mechanical parts, medical devices and so on. Among them, the failure products caused by wear (such as blanking, cold heading, powder forming, etc.) can increase the service life by more than 2-20 times after coating; the problems of the products or dies caused by occlusion (such as: drawing die, drawing die, flanging die, etc.) can be fundamentally solved after coating.
