How to adjust the injection mold opening pressure speed?

How to adjust the injection mold opening pressure speed?

The pressure and speed adjustment of injection mold opening is a very important link, which directly affects the quality of products, production efficiency and economic benefits.

Mainly from the following three aspects to adjust, the specific adjustment methods are as follows:

(1) Adjustment of injection speed:
Injection speed is divided into high speed and low speed, high speed can improve production efficiency, but too fast will lead to mold vibration and wear, and even white phenomenon. Low speed can ensure product quality, but too slow will increase production costs and prolong the production cycle. Therefore, it is necessary to choose the appropriate injection speed according to the actual situation.
In general, for large or complex injection parts, it is recommended to adjust by gradually increasing the injection speed to avoid excessive impact on the mold.

(2) Adjustment of injection pressure:
The size of injection pressure directly affects the quality and shape of injection parts. Injection pressure is too small, will lead to injection parts not full or defects; Excessive injection pressure will cause mold damage or produce too much waste. Therefore, it is necessary to choose the appropriate injection pressure according to the actual situation.
Generally speaking, for small or simple injection parts, higher injection pressure can be used; For large or complex injection parts, low injection pressure is needed to avoid excessive impact on the mold.

(3) Temperature regulation:
Temperature is a very important parameter in the process of injection mold opening, too high or too low temperature will affect the quality and performance of injection parts. Therefore, it is necessary to choose the appropriate temperature according to the actual situation.
In general, for thermoplastics, the temperature needs to be controlled between 180 ° C and 220 ° C; For thermosetting plastics, the temperature needs to be controlled between 90 ° C and 150 ° C.

To sum up, the pressure and speed adjustment of the injection mold need to be analyzed and solved according to the actual situation. Generally speaking, by gradually increasing the injection speed, selecting the appropriate injection pressure and temperature and other methods, the quality and production efficiency of injection parts can be effectively improved, while reducing the production cost and scrap rate.