Most Thermoforming Equipment will have an independent cooling system, what role does this play in the forming process?
Thermoforming products need to be cooled and shaped before forming, and the cooling efficiency is set according to the product in-mold temperature, which can better improve the production efficiency and ensure product quality.
If the cooling is not sufficient, deformation and bending will easily occur; if the cooling is excessive, the efficiency will be low, especially for punches with small slopes, which may cause difficulty in demolding.
There are two cooling methods. Internal cooling is to cool the initial product by cooling the mold. External cooling is to use air cooling (using fans or electric fans) or air, water mist, etc. to cool products. Separate water spray cooling is rarely used, because it is easy to cause defects in the products, and at the same time, it also causes inconvenient water removal. Ideally, both the inner and outer surfaces of the workpiece in contact with the mold are cooled. As PVC and other materials must be demoulded at a relatively low temperature after molding, it is better to use a mold with a cooling coil inside and a cooling system with air cooling and other forced cooling to complete the cooling of the products. For products such as polystyrene and ABS that can be shaped at a high temperature, the cooling coil can not be installed in the mold, and small products can be naturally cooled.
Post time: Aug-24-2022