The pressing process of automobile brake pads has great influence on product quality and production efficiency. At present, the traditional plate die and multi-cavity press are the most widely used in the production of disc brake pads, but neither of them can guarantee the uniform density of the product. The density is an essential parameter of the brake pad, and its error directly affects the brake performance, wear performance and brake noise, etc., therefore, these two methods have limited the rapid development of friction material products.
Type 1
One big cylinder from top moving down, multi-layer, multi-cavity flash mold Press, Products with less density consistency leading to less stable performance, more noise and shorter life.
Type 2
With one big cylinder from the bottom moving up, one big multi-cavity mold, the product’s consistency is better than Type1, but not ideal for optimal performance, noise and wear. 99% of so-called “Positive” in China use it.
According to the development of automobile friction material and the demand of customers at home and abroad, the new type disc brake pad equal pressure hot press is a disc brake pad production equipment with single cylinder, single cavity and equal pressure, it can satisfy all the technical requirements in the process of the brake pad pressing forming to the maximum extent, and realize the reduction of the density error of the brake pad, it is of great significance to improve the performance of brake pads, reduce brake noise and vibration.
Type 3
OEM Style Real Positive Technology: With 4 cylinders from the bottom moving up, each cylinder works against one cavity, ensuring the product’s SG is very consistent for optimal superior performance, noise-free, and long pad life.
1. The spring force sealing die technology can effectively prevent the overflow in the pressing process and improve the quality of the brake pads;
2. The mould is located on the outside of the four-column during manual operation to ensure the personal safety of the operators
3. The upper template adopts automatic clamping device, which is easy to change, and the time of changing the mould is not more than 5 minutes;
4. Automatic spraying of release agent on the upper template to reduce the labor intensity of workers;
5. Equipment multi-station arrangement and combination, linear arrangement or circular arrangement.
Yijing products are made with this positive molding technology. It not only reduces the complexity of mold replacement, improves the labor efficiency, but also effectively avoids the problem of inconsistent density of brake pad caused by feeding error.
