What are the effects of mold temperature on ejector pin?

What are the effects of mold temperature on ejector pin?

It is very important to control the temperature of the mold ejector pin during production. The temperature will have an impact on the size of the product. Here are three common situations.

1. Mold temperature affects the life of die casting mold.

In the continuous die-casting production process, every time die-casting, the mold temperature circulates once from high temperature to low temperature, and it is continuously heated and cooled, and thermal stress is generated inside the mold due to the temperature difference. Periodic thermal stress causes thermal fatigue and cracks in the mold. The mold temperature is too high, and the mold ejector pin is easy to deform;

2. Mold temperature affects the effect of release agent.

When the mold temperature is too high, the release agent volatilizes excessively at high temperatures, and a dense film cannot be formed, which is easy to cause mold sticking. If the mold temperature is too low, the film formed by the mold release agent contains unvolatile moisture, which makes the mold release effect poor, and also causes casting pores and cold barrier defects;

3. Mold temperature affects the quality of die castings.

When the mold temperature exceeds 250℃, the mechanical properties of the die-casting parts decrease significantly.

Mold ejector pin is a very important product, so understanding the above three points can reduce mold damage. Rebole has focused on mold technology for 10 years and has a good evaluation in the industry.