(1) the production efficiency of stamping is high, and the operation is convenient. It is easy to realize mechanization and automation. This is because the stamping dies and stamping equipment rely on to complete the processing, ordinary press trips per minute up to dozens of times, high pressure per minute up to hundreds or eve...[Detailed]

Heat treatment process of hot spring forming in this way is the most hot spring forming molding and heat treatment together, and it is most spiral spring and then heat-treated in hot forming. The heat treatment of spring steel quenching tempering heat treatment, the microstructure is tempered trooslite. The elastic limit of this...[Detailed]