Advantages, characteristics and applications of aluminum alloy die castings
Aluminum die casting is a kind of pressure casting, which uses the pressure casting mechanical die casting machine installed in the casting mold to pour the heated liquid aluminum or aluminum alloy into the feeding port of the die casting machine, and then die casting through the die casting machine, so that the Parts of aluminum or aluminum alloys, or their shape and size, are defined in a mold, and such parts are often referred to as aluminum die casting.
This makes aluminum alloy die casting more suitable for the production of various types of thin-walled castings with complex structures. Products are widely used in aviation, aerospace, ships, building materials, household appliances, automobiles, instrumentation and other industries. So what are the advantages and advantages of aluminum alloy die casting that we know? Its advantages are mainly reflected in five aspects:
Aluminum alloy die castings have good filling properties, but due to the large surface shrinkage of the castings, it is easy to produce large shrinkage holes during final solidification.
Aluminum alloy die castings have good thermal conductivity, electrical conductivity and cutting performance.
Aluminum alloy die-casting parts are easy to stick to the mold. Generally, the mass fraction of die-cast aluminum alloy iron is controlled within the range of 0.8% to 0.9%, which can reduce the phenomenon of mold sticking.
Aluminum alloy die castings have good corrosion resistance and oxidation resistance. Most aluminum alloy products have good corrosion resistance in fresh water, seawater, concentrated nitric acid, nitric acid, gasoline and various organic substances.
Aluminum alloy die castings have low density and high strength, and the ratio of tensile strength to density is 9~15. It can still maintain good mechanical properties under high temperature or low temperature.
