Friends who are familiar with gravity casting know that in the daily production of gravity casting machines, only by keeping the temperature change of the mold constant can the stable quality of the castings produced be ensured. Do you know what methods are generally used to keep mold temperature changes constant? Kuntai Casting Machine tells you that in fact, every time a casting is produced, some methods will be used to cool the mold temperature before casting.

Because the natural cooling method takes too long and reduces production efficiency, forced cooling is used to cool gravity casting molds. There are three cooling methods, namely air cooling, indirect water cooling and direct water cooling. Air cooling is blowing cooling, which strengthens convection to achieve the heat dissipation effect. The advantage of this method is that it has a simple structure and is easy to make, but the effect is not good enough.

Indirect water cooling refers to placing a water jacket on the back or part of the mold for cooling. However, intense cooling cannot be used in the production of some castings, otherwise it will easily increase casting defects. Direct water cooling is to pass water directly into the water jacket for cooling, but this method is more expensive and is only suitable for mass production. Generally, manufacturers will make selections based on the applicable conditions of castings.