Cast aluminum alloy classification knowledge

(1) Aluminum-silicon alloy, also known as "silicon aluminum" or "silicon aluminum". It has good casting performance and wear resistance, small thermal expansion coefficient, the most varieties and the largest amount of alloy in cast aluminum alloy, and the silicon content is 4%~13%. Sometimes 0.2%~0.6% magnesium silicon-aluminum alloy is widely used in structural parts, such as shells, cylinders, boxes and frames. Sometimes the right amount of copper and magnesium is added to improve the mechanical properties and heat resistance of alloys, which are widely used in the manufacture of pistons and other components.

(2) Aluminum-copper alloy, copper-containing 4.5%~5.3% alloy has the best strengthening effect, and the appropriate addition of manganese and titanium can significantly improve room temperature, high temperature strength and casting performance. It is mainly used to make sand castings that bear large dynamic and static loads and have uncomplicated shapes.

(3) Aluminum-magnesium alloy, the smallest density (2.55g/cm3), the highest strength (about 355MPa) cast aluminum alloy, containing 12% magnesium, the best strengthening effect. The alloy has good corrosion resistance in the atmosphere and seawater, and has good comprehensive mechanical properties and machinability at room temperature, and can be used as radar base, aircraft engine receiver, propeller, landing gear and other parts, and can also be used as decorative materials.

(4) Aluminum-zinc alloys, in order to improve performance, often add silicon and magnesium, often called "zinc silicon aluminum ming". Under casting conditions, the alloy has a quenching effect, that is, "self-quenching". It can be used without heat treatment, and after heat treatment with deterioration, the casting has higher strength. After stabilization, the size is stable, and it is often used to make models, pattern plates and equipment supports.

XTM Aluminum company are specialized in the production of aluminum extrusion profiles like aluminum tile trims, floor trims, edges, transitions, strips, partitions, sections, pipes, tubes, etc. They are applicable for stairs, floors, corners, office furniture, LED lighting, air vent diffusers, kitchen cabinets, wardrobes, partition screens, etc.  

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