How to adjust the injection pressure of the silicone injection molding machine?

First, according to the specific situation, choose the appropriate injection pressure range. The choice of injection pressure should be determined according to the characteristics of the LSR material, the structure and size of the mold, the requirements of the product and other factors. Generally speaking, the injection pressure range of LSR injection molding is between 5-150MPa. Choosing the right injection pressure range can improve product quality and production efficiency.

Then, the specific steps to adjust the injection pressure as needed are as follows:

1. Adjust the speed of the oil pump. The speed of the oil pump determines the flow and pressure of the oil. Under normal circumstances, increasing the speed of the oil pump can increase the injection pressure, while reducing the speed of the oil pump can reduce the injection pressure. By adjusting the speed of the oil pump, the injection pressure can be quickly changed.

2. Adjust the pressure valve of the oil circuit. The pressure valve of the oil circuit can limit the pressure of the oil flow. According to the need, the opening pressure and closing pressure of the pressure valve can be adjusted, so as to adjust the injection pressure of the injection molding machine. Under normal circumstances, increasing the opening pressure of the pressure valve can increase the injection pressure, while reducing the opening pressure of the pressure valve can reduce the injection pressure.

3. Adjust the piston stroke of the injection cylinder. The piston stroke of the injection cylinder determines the injection amount and speed of the injection material. The injection pressure of the LSR injection molding machine can be adjusted by adjusting the piston stroke of the injection cylinder. Generally speaking, increasing the piston stroke can increase the injection pressure, while decreasing the piston stroke can reduce the injection pressure.

To sum up, adjusting the injection pressure of the LSR injection molding machine requires understanding the structure and working principle of the injection molding machine, and selecting the appropriate injection pressure range, which is achieved by adjusting the speed of the oil pump, the pressure valve of the oil circuit and the piston stroke of the injection cylinder. At the same time, it should be tested and adjusted according to the requirements of the product to ensure the stability of the injection pressure and the conformity of the quality. Through the above adjustment steps, the injection pressure of the LSR injection molding machine can be achieved in the best state, and the quality and production efficiency of the product can be improved.