Minimisation of release agent and water consumption

5 Permanent (metal) moulds and pressure die preparation 4.3.5.1 Minimisation of release agent and water consumption 

A water-based solution of release agent is sprayed on the open HPDC die before closing it. This allows cooling and coating of the die. Some simple process measures allow the minimisation of the release agent and water consumption. These will also prevent the formation of a mist. These measures are  

Automated spraying process Robotisation of the spraying process allows a careful control of the amount of release agent used and adaptation of the amount used to the local needs of the cast piece 

Minimisation of water and chemicals consumption. Prevention and/or reduction of (diffuse) emissions. 

This technique applies to HPDC foundries. The extent to which the minimisation can be applied depends on the t)q)e of castings and the machines used. 

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