PVC foam board machine mold mouth size how to adjust

First, adjust the temperature

The adjustment of temperature is a key factor in the adjustment of the foam board mold, which needs to be adjusted according to the specific material. In general, if the temperature is too low, it will cause the foam not to rise, while the temperature is too high, it will cause the foam to expand excessively, resulting in problems such as bubbles and raw edges. Therefore, when adjusting the temperature, it is necessary to gradually increase or decrease the temperature according to the actual situation until the best effect is achieved.

Second, adjust the pressure

The adjustment of foam plate mold also needs to pay attention to the adjustment of pressure. If the pressure is too large, it will lead to too many bubbles in the foam board, and lead to shrinkage problems; If the pressure is insufficient, it will lead to the foam board can not be fully filled, thus affecting the quality of the product. Therefore, when adjusting the pressure, it is necessary to make appropriate adjustments according to the characteristics of the specific materials and molds.

Three, adjust the time

The adjustment of foam plate mold also needs to pay attention to the adjustment of time. If the time is too short, it will lead to incomplete foaming of the material, while if the time is too long, it will lead to excessive foaming of the material, resulting in shrinkage and oil seepage. Therefore, when adjusting the time, it is necessary to gradually adjust according to the actual situation to find the best foaming time.

Iv. Other precautions

When adjusting the foam board mold, the following aspects also need to be paid attention to.

1. Select the appropriate mold and material.

2. Ensure that the mold is in a good forming state and check whether the state of the mold is reasonable.

3. According to the production process and requirements, adjust the mold opening time and closing time of the foam board.

4. Keep the mold clean, and maintain the mold regularly.