Aluminum-magnesium alloys usually refer to aluminum alloys with magnesium as the main additive element. They have the advantages of high strength, low density, and good heat dissipation. They are widely used in electronics, automobiles, aerospace and other fields.
advantage
1. Low density. Magnesium metal is the metal with the lowest density among widely used metals. Calculated according to ρ=1.8g/cm3, magnesium alloy is 20% lighter than plastic and 30% lighter than aluminum.
2. High specific strength, that is, the ratio of strength to mass of magnesium alloy is high, and it has a certain bearing capacity.
3. Good heat dissipation performance, suitable for products with high heat dissipation requirements. The thermal conductivity is 100 times that of PP material.
4. Small elastic modulus, good rigidity, not easy to deform after long-term use, strong shock resistance.
5. Good resistance to electromagnetic interference and electromagnetic shielding.
6. The color is bright and beautiful, corrosion-resistant, and can maintain the appearance quality for a long time.
7. It is an environmentally friendly material, and its waste can be recycled.
shortcoming
1. The processing technology is difficult, the molten magnesium liquid is flammable and explosive, and the yield of die-casting parts is low.
2. There are more waste materials in the slag collection bag, runner and gating system, which is more than double the volume of the product.
3. The price of domestic materials is cheap, but the quality is poor.
4. Due to potential corrosion, it is necessary to avoid direct connection with other materials such as aluminum and steel, which makes assembly difficult.