In the production of Die Cast parts, the control of thermal processes in the mould is an important factor.
Each Die Casting mould should be heated to the required temperature before starting the casting operation. In general, the service life of the mould increases and the mould is better protected when the temperature difference between the casting and the mould is as low as possible.
Die casting with a cold or insufficiently preheated form causes in high stresses at the mould surface and also results in loss of quality on the die cast parts.
An optimisation of the mould temperatures in terms of a uniform temperature distribution and a reduction on the peak temperature at the surface can delay early damages of the tool, especially in the form of heat checking cracks and significantly increase the service life of the mould.
The heat balance of the Die Cast mould plays a decisive role with regards to the quality of the parts and the cycle times. An insufficient mould temperature results in a high reject rate in the die cast.