Solutions for die-casting mold sticking
Die casting molds sometimes have the phenomenon of sticking to the mold, and today I will introduce the method to solve this phenomenon.
1. Check whether the mold temperature is normal, and appropriately reduce the alloy liquid pouring temperature and mold temperature;
2. Check if the ratio of the release agent is abnormal, try to replace the release agent, adjust the spraying position and spraying amount;
3. Polish the surface of the die-casting mold, and carefully polish the mold that has been nitrided to prevent damage to the nitride layer on the surface, resulting in a situation that becomes more sticky as it is polished;
4. Improve the design structure of the gating system to avoid the alloy liquid from continuously scouring the cavity wall or core;
5. Modify the mold cooling system, adjust the die-casting process parameters, appropriately reduce the injection speed, and shorten the second-speed stroke.
6. Try to grind a few horizontal grooves on the movable mold, 0.2-0.3mm is enough, the die casting will appear to be drawn very bright and will not be damaged. This can increase a lot of tightness on the side of the movable mold and bring the die casting to the movable mold.
