What is the purpose of the heat treatment in the case of the reducer?
The reduction case is generally annealed after casting in order to eliminate casting stress, improve mechanical properties and machinability.
3. Homogenizing annealing: an important reducer or other cast iron material reducer. In order to improve the mechanical properties, homogenizing annealing is needed because a lot of chemical segregation is formed during the casting process. The purpose is to ensure the mechanical properties of each section and improve the mechanical properties.4, there are other materials: Aluminum Alloy reducer, the heat treatment of cast iron with similar purpose is similar, but Aluminum Alloy important parts in need of solution treatment and aging to improve the mechanical properties, such as amphibious tanks inside a reducer parts must do.
1 、 remove stress annealing process: the purpose is to eliminate casting stress, improve mechanical properties and mechanical properties,2, graphitization annealing: if the reducer section size difference is bigger, in the thin cross section easy to form the chill, this must carry on the graphitization annealing. The purpose is to remove the chill.
The material of the reduction case is usually cast iron. According to different cast iron materials, the heat treatment after casting is different, and the specific problems are analyzed in detail.A general purpose reducer is usually made of gray iron and usually has a heat treatment after casting:
