Process for heat treating a aluminum cast product used as vehicle parts, such as engine blocks and cylinder heads comprise solution calcining, cooling at a specified rate, and aging

摘要

Process for heat treating a aluminum cast product comprise solution calcining the product by heating and maintaining at a temperature of 480-515 deg C for 1-3 hours; cooling at a rate of 0.6 deg C/second; and aging by heating and maintaining at a temperature of 220-260 deg C for 1-2.5 hours. Preferred Features: The cast product is an aluminum-silicon-copper cast alloy. Cooling is carried out using a quenching agent.