EKS(Xiamen)Precision Industry Co., Ltd
The Advantages of Aluminum Alloy Die Casting
May 26, 2017
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Aluminum is the first choice of the metal material for die casting. Why aluminum is the best choice? Because although other metals such as copper, zinc and magnesium can also be used, aluminum offers many advantages such as its brightness, low cost, flexible mechanical properties, etc., which can not be provided by other metals. First of all, aluminum alloy is a material with excellent application. It is a kind of material after special processing of modern technology. Its appearance is the result of the times' development, and it is the modern technology that gives it the advantageous performance. The value in use of aluminum alloy in the casting industry is very obvious. Aluminum alloy not only can be used as the die casting material, but also can be manufactured to parts of die casting machines. Aluminum alloy die casting parts are produced based on the specific requirements of die castings, having a certain impact on the quality and performance of die castings. Of course, since aluminum alloy as a material has so many advantages, they also have positive impacts on die castings, making them have lots of advantages as follows.
1. The aluminum alloy die castings have a wide range of production since they can have extended shapes and various sizes.
2. The aluminum alloy die castings have high dimensional accuracy and low surface roughness.
3. The aluminum alloy die castings have good thermal conductivity, electrical conductivity and cutting performance.
4. The aluminum alloy has small line shrinkage, thus it has good filling performance.
5. The aluminum alloy has small density but good strength, with tensile strength and density ratio of 9 to 15, and can maintain the same good mechanical properties when they work under high or low temperatures. This is because aluminum can have a variety of shapes as well as patterns and maintain its strength at high temperatures.
6. The aluminum alloy has good corrosion resistance and oxidation resistance, and most of the aluminum alloy has good corrosion resistance in fresh water, sea water, gasoline and various organics.
Various types of elements and their impacts on aluminum alloy in the aluminum alloy die casting:
Silicon: It is the main element in aluminum alloy, which can improve the casting performance. Silicon and aluminum can form solid solution.
Magnesium: It can improve the strength, yield limit, machinability and corrosion resistance.
Zinc: It can improve the mobility; increase the thermal brittleness; reduce corrosion resistance.
Iron: It can reduce the adhesion of mold when the iron content is less than 6%.
Manganese: It can reduce the harmful effects of iron.
Nickel: It can improve the strength and hardness and reduce corrosion resistance, which has the same effects of iron.
Titanium: It can refine the grain structure; improve the mechanical properties; reduce the heat cracking of the alloy.
1. The aluminum alloy die castings have a wide range of production since they can have extended shapes and various sizes.
2. The aluminum alloy die castings have high dimensional accuracy and low surface roughness.
3. The aluminum alloy die castings have good thermal conductivity, electrical conductivity and cutting performance.
4. The aluminum alloy has small line shrinkage, thus it has good filling performance.
5. The aluminum alloy has small density but good strength, with tensile strength and density ratio of 9 to 15, and can maintain the same good mechanical properties when they work under high or low temperatures. This is because aluminum can have a variety of shapes as well as patterns and maintain its strength at high temperatures.
6. The aluminum alloy has good corrosion resistance and oxidation resistance, and most of the aluminum alloy has good corrosion resistance in fresh water, sea water, gasoline and various organics.
Various types of elements and their impacts on aluminum alloy in the aluminum alloy die casting:
Silicon: It is the main element in aluminum alloy, which can improve the casting performance. Silicon and aluminum can form solid solution.
Magnesium: It can improve the strength, yield limit, machinability and corrosion resistance.
Zinc: It can improve the mobility; increase the thermal brittleness; reduce corrosion resistance.
Iron: It can reduce the adhesion of mold when the iron content is less than 6%.
Manganese: It can reduce the harmful effects of iron.
Nickel: It can improve the strength and hardness and reduce corrosion resistance, which has the same effects of iron.
Titanium: It can refine the grain structure; improve the mechanical properties; reduce the heat cracking of the alloy.
