At the same time the vigorous development of the automotive industry, due to the need of environmental protection and energy saving, lightweight of automobile has become the development trend of the world automobile.
The relevant departments of evidence, the automotive aluminium demand of some 5.3 million-5.9 million tons 2020, the market prospect of light-weight aluminum can.

In the process of the implementation of lightweight aluminum alloy will play its natural advantages, is mainly used for the improvement and replacement of body material.

Lightweight of automobile can be divided into lightweight, The weight of the engine, The chassis lighter, Lightweight four kinds of heat exchange system, its purpose is to ensure that the premise of performance through the use of lighter materials to reduce vehicle weight, so as to realize the function of energy saving and environmental protection.