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七十年代以来,随着工业的发展,各种重型设备和超重型设备,特别是大型运输设备的需要量越来越大,品种也越来越多,同时,还要求重型设备本身具有操作方便,结构简单,重量轻等特点。铝合金既具有相当高结构强度,又具有单位体积重量小的特点,是制造重型运输设备理想材料之一。
Since the 1970s, with the development of industry, the demand of various heavy equipment and overweight equipment, especially large transport equipment, has been increasing and the variety is also increasing. At the same time, heavy equipment itself is required to be easy to operate The structure is simple, light weight and so on. Aluminum alloy not only has a very high structural strength, but also has the characteristics of small unit weight, is one of the ideal materials for manufacturing heavy transport equipment.