The company's existing German, American and other series of brake drums, the casting process all using advanced lost foam technology, greatly improving product quality and production efficiency, the product has won the trust of the majority of users. The lost foam casting process mainly has the following characteristics: 1. The surface of the casting is smooth and flat, without flashing edges and burrs. 2. Negative pressure casting is more conducive to the filling and feeding of liquid metal, which improves the microstructure density of the casting, reduces the internal defects of the casting, improves the tensile strength, and avoids the cracking phenomenon in use. 3. The shape and shape of the casting are accurate, the processing residual material is less, the weight distribution is more uniform, and it is not eccentric, which greatly reduces the probability of “eat the tire”.
