Here to emphasize that the screw and the barrel of these two important parts, one is the elongated screw rod, one is relatively small diameter and long holes, their machining and heat treatment processes are more complex, the accuracy of the guarantee will be compared difficult. Therefore, the wear and tear of these...

Injection molding machine screw is a long time in the high temperature, high pressure, high mechanical torque and high friction environment to work. The first few factors are required for the process conditions and the friction losses are inevitable. General screw surface nitriding have been carried out to improve the ...