Aluminum die casting is a widely used metal casting process, and the alloy composition is crucial to the performance and quality of the castings. This article will introduce the main components of aluminum die casting alloys and their impact on the properties of the castings.
The main components of aluminum die casting alloys include aluminum, silicon, magnesium, copper, zinc, and other elements. The content and proportion of these elements in aluminum alloys will have a significant impact on the mechanical properties, casting properties, and corrosion resistance of the alloy.
Aluminum is the main element in aluminum alloys, and its content is usually over 80%. The higher the aluminum content, the higher the strength and hardness of the alloy, but it will also reduce the plasticity and toughness of the alloy.
Silicon is one of the most important alloying elements in aluminum alloys, and its content is usually between 6% and 12%. Silicon can improve the fluidity and casting properties of aluminum alloys, and also can increase the strength and hardness of the alloy.
Magnesium is another important alloying element in aluminum alloys, and its content is usually between 0.2% and 1.5%. Magnesium can increase the strength and hardness of aluminum alloys, and also can improve the corrosion resistance of the alloy.
Copper is a commonly used alloying element in aluminum alloys, and its content is usually between 1% and 5%. Copper can increase the strength and hardness of aluminum alloys, and also can improve the Corrosive resistance and thermal stability of the alloy.
Zinc is a commonly used alloying element in aluminum alloys, and its content is usually between 1% and 3%. Zinc can improve the fluidity and casting properties of aluminum alloys, and also can increase the Corrosive resistance of the alloy.
In addition to the above main alloying elements, aluminum die casting alloys may also contain other elements such as manganese, titanium, and chromium to meet specific performance requirements.
The composition of aluminum die casting alloys is crucial to the performance and quality of the castings. Reasonable selection of alloy composition and proportion can obtain aluminum alloys with excellent mechanical properties, casting properties, and Corrosive resistance.
