First of all, cast aluminum is not pure aluminum, and usually contains aluminum, silicon, copper, zinc and other elements.
Cast aluminum is mainly composed of aluminum as the base material, and silicon (Si), copper (Cu), magnesium (Mg), zinc (Zn) and other elements are added. Some alloys also add rare earth elements. For example, Al-Si alloys use silicon as the main added element, while Al-Cu alloys use copper as a strengthening component.
An important reason why cast aluminum is not pure aluminum is that pure aluminum has relatively low strength and limited corrosion resistance. If aluminum products are made of pure aluminum, there will be problems such as fragility, deformation, and easy corrosion. Therefore, when casting aluminum products, it is necessary to add an appropriate amount of other elements. These elements can not only improve its strength and corrosion resistance, but also improve its processing performance and cost. Therefore, the composition of cast aluminum is different from that of pure aluminum.
Specific classification
Al-Si alloys: Common components include aluminum, silicon, and copper (a small amount), which are suitable for manufacturing complex-shaped parts such as engine casings and wheels.
Al-Cu alloy: With copper as the strengthening element, it is a high-strength alloy and is often used to manufacture high-load structural parts such as aircraft parts.
Al-Mg alloy: Contains magnesium elements and has high corrosion resistance, suitable for parts such as automobile cylinder heads.
Different alloy grades achieve performance optimization by adjusting the content of elements such as silicon, copper, and magnesium, such as ZL101 (Al-Si series), ZL30 (Al-Cu series) and more.
If you have a large-scale aluminum casting demand, you can choose to cooperate with Mulan Metal. Mulan Metal has 12 years of experience in metal custom casting processing, helping customers in more than 30 countries to complete custom casting processing business and gain unanimous recognition. Looking forward to your cooperation consultation.
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