Cast aluminum alloy products require 7% elongation, what kind of material to meet?
(4) aluminum zinc alloy, is often added to improve the performance of silicon, magnesium, often referred to as "zinc aluminosilicate Ming." In casting conditions, the alloy has a hardening effect that "self-quenching." Without heat treatment can be used to deterioration after the heat treatment, high strength castings. Stabilized after treatment, dimensionally stable, commonly used in the production model, plate and equipment such as stents.
(3) aluminum-magnesium alloy, the minimum density (2.55g / cm3), the highest intensity (about 355MPa) of cast aluminum, 12% magnesium, strengthening the best results. Alloy in the atmosphere and seawater good corrosion resistance, good mechanical properties and machinability at room temperature, can be used as a radar base, the aircraft's engine casing, propellers, landing gear and other parts, but also as a decorative material.
(2) aluminum-copper alloy, copper alloy of 4.5% ~ 5.3% strengthening effect the best, appropriate manganese and titanium can significantly improve the room temperature, high temperature strength and casting properties. Mainly for the production withstand large dynamic and static load and uncomplicated shapes sand casting.
specific:
(1) Al-Si alloys, also known as "aluminosilicate Ming" or "silicon aluminum Ming." Good casting properties and wear resistance, low coefficient of thermal expansion, in cast aluminum alloy in most varieties, the largest amount of alloy silicon content of 4% to 13%. Sometimes adding 0.2 to 0.6% silicon aluminum alloy of magnesium, are widely used in structural members, such as the housing, the cylinder block, the housing and framework. Sometimes adding an appropriate amount of copper and magnesium, can improve the mechanical properties and heat resistance of the alloy. Such alloys are widely used in the manufacture piston and other parts.
Cast aluminum alloy grades can generally meet the requirements of 7% elongation.
Process Note: Try to metal casting, low pressure casting process.
