一、国外铝合金铸件的生产概况随着交通运输业及其它工业的发展,人们对轻合金的利用也愈加重视了,铸造铝合金也不例外.它已被广泛用于汽车、航空、船舶、机车车辆制造业等部门.特别是在汽车工业中,铝铸件的使用量占有极大的比重,主要是用来减轻发动机零件的重量. 近几年来,世界各国铝合金铸件产量的增长速度都很快(表1). First, the overview of the production of foreign aluminum castings With the development of transportation and other industries, people pay more attention to the use of light alloys, cast aluminum is no exception.It has been widely used in automobiles, aviation, shipping, Especially in the automotive industry, the use of aluminum castings account for a large proportion, mainly to reduce the weight of engine parts.In recent years, the world’s aluminum alloy castings production growth rate is very high Fast (Table 1).