What is the cast aluminum? Its type?

Cast aluminum alloy refers to a casting formed by melting aluminum alloy through a casting process, pouring it into a mold, and solidifying and cooling it. Cast aluminum alloy has a low melting point, good fluidity and plasticity, and is suitable for various casting processes, including low-pressure casting, gravity casting, die casting, etc.

There are many types of cast aluminum alloys.

Common cast aluminum alloys include:

Aluminum-Si alloy (Al-Si alloy): Al-Si alloy is one of the most common cast aluminum alloys. It has good fluidity, wear resistance and corrosion resistance, and is suitable for various casting processes. According to the different silicon content, aluminum-silicon alloys can be divided into super duralumin (silicon content exceeds 17%), duralumin (silicon content is about 12%) and soft aluminum (silicon content is about 6%).

Aluminum-copper alloy (Al-Cu alloy): Aluminum-copper alloy has high strength and hardness and good heat resistance. It is often used to manufacture parts that require high strength and wear resistance, such as engine parts, aircraft parts, etc.

Aluminum-magnesium alloy (Al-Mg alloy): Aluminum-magnesium alloy has low density and good strength, as well as good corrosion resistance and plasticity. It is widely used in aerospace, automotive and electronics fields.

Aluminum-zinc alloy (Al-Zn alloy): Aluminum-zinc alloy has high strength and hardness, as well as good corrosion resistance. It is commonly used in the manufacture of automotive parts, appliance casings, and building materials.

Aluminum-magnesium-silicon alloy (Al-Mg-Si alloy): Aluminum-magnesium-silicon alloy has good plasticity and weldability, as well as high strength and hardness. It is widely used in the automotive manufacturing, aerospace and construction industries.

In addition, there are other types of cast aluminum alloys, such as aluminum-lithium alloys, aluminum-titanium alloys, aluminum-zirconium alloys, etc., which have different characteristics and application fields.

Each cast aluminum alloy has unique characteristics and application ranges, and choosing the right aluminum alloy depends on the requirements of the casting, including strength, weight, corrosion resistance, thermal conductivity, etc. In actual applications, selection and design need to be carried out according to specific circumstances to meet the performance and quality requirements of the product.