Cast aluminum alloy has some advantages that are unmatched by other castings, such as beauty, light weight, corrosion resistance, etc., making it widely favored by users, especially since automobile lightweighting, cast aluminum alloy castings have been widely used in the automotive industry Applications.
The density of cast aluminum alloy is lower than that of cast iron and cast steel, and the specific strength is higher. Therefore, the use of aluminum alloy castings under the same load conditions can reduce the weight of the structure, so aluminum alloy castings are widely used in the aviation industry and the manufacture of power machinery and transportation machinery.
Cover aluminum castings: light weight and corrosion resistant
Aluminum alloy has good surface gloss and good corrosion resistance in the atmosphere and fresh water, so it has a wide range of uses in the manufacture of civilian utensils.
Pure aluminum has good corrosion resistance in oxidizing acid media such as nitric acid and acetic acid, so aluminum castings also have certain uses in the chemical industry. Pure aluminum and aluminum alloys have good thermal conductivity, and are placed in heat exchange devices used in chemical production, as well as parts requiring good thermal conductivity on power machinery, such as cylinder heads and pistons of internal combustion engines. They are also suitable for aluminum alloys. Manufacturing.
Aluminum alloy has good casting properties. Due to the low melting point (the melting point of pure aluminum is 660.230C, the casting temperature of aluminum alloy is generally about 730 ~ 750oC), it can be widely used casting methods such as metal mold and pressure casting to improve the inherent quality, dimensional accuracy and surface of the casting Smoothness and production efficiency.
Due to the large latent heat of solidification of aluminum alloys, under the same weight conditions, the solidification process of aluminum liquid lasts much longer than that of cast steel and cast iron, and it has good fluidity, which is beneficial for casting thin-walled and complex-structure castings.