The production equipment required for the entire process of producing high-quality screws generally includes cold heading machines, tooth rubbing machines, etc. What are the production processes?
1、 Cold Pier Heading
Cold heading is also known as head forming, which shapes raw materials through the interaction between molds. Cut the wire and upset it into a screw blank to form a head. Can be designed according to the actual needs of customers, can be countersunk head, round head, large flat head, outer hexagon, inner hexagon, and so on.
2、 Rubbing teeth
Tooth rubbing is also known as thread rubbing, which is to twist the preformed rod into the desired thread. A fixed die and a movable die are required. Mutual compression causes the product to undergo plastic deformation, forming the desired thread.
3、 Heat treatment
It is essential that high-quality bolts with strength requirements undergo heat treatment to maintain their mechanical properties. However, according to actual needs, not all screws need to undergo heat treatment, and hasty heat treatment can lead to excessive product quality and increased costs.
4、 Surface treatment
Surface treatment is the process of forming a coating layer on the surface of a workpiece, with the intention of imparting a product appearance and anti-corrosion effect.
After these several processes, the finished bolt will come out. If you have customized requirements for high-quality bolts, please contact us, and we will wholeheartedly serve you!