前言 内燃机活塞的工作条件是十分苛刻的,一般总是直观地认为必须选用耐热性能高的材料。因此,用铝合金制造活塞时,耐热性格外受到重视。指导思想就是活塞用合金即是耐热合金。事实也确实如此,在铝铝合金活塞的开发初期,就是受这种指导思想所支配,但随着此后的发展,对活塞用铝合金所要求的特性也逐渐明朗化,至今已明确,耐热性只是重要的必要条件之一,但决不是充分条件。 Foreword Internal combustion engine piston working conditions are very harsh, generally always intuitively think that you must choose the material with high heat resistance. Therefore, the use of aluminum alloy piston, heat resistance has received special attention. The guiding principle is that the piston alloy is a heat-resistant alloy. The fact is true, in the early stages of the development of aluminum-aluminum piston, is subject to this guiding ideology, but with the subsequent development of the characteristics of the piston aluminum alloy has become clearer, it has been clear, heat Sex is but one of the important requirements, but by no means is it sufficient.