Optimization of heat treatment of cast pistons in order to save energy

Abstract:

This paper presents the results of the effects of optimizing the heat treatment of cast pistons in order to save energy. The piston alloy castings of approximately eutectic composition (AlSi13Cu4Ni2Mg) were examined. Different temperatures and times of solution heat treatment (480 to 510 °C for 1 to 20 h) and of aging (150 to 200 °C for 1 to 20 h) were investigated. The results have shown that it is necessary to find optimal combinations of temperature and time of heat treatment in order to achieve the required performance and economic savings. Key words: cast piston, piston alloys, heat treatment, save energy