In most cases, magnesium die castings produce products similar to other alloy die castings. Magnesium alloy die casting die is also similar to aluminum and zinc alloy die casting die. But due to some characteristics of magnesium alloy different from aluminum alloy, give consideration when designing die casting die, in order to design a reasonable die casting die, so as to produce magnesium alloy die casting efficiently and economically.
The characteristics of magnesium alloys
1, light magnesium specific gravity of only 1.8G/CM3, aluminum alloy specific gravity of 2.7G/CM3, magnesium alloy is 30% lighter than aluminum alloy, 80% lighter than steel. Therefore, the car and handheld electronic products in magnesium alloy has become the ideal material for parts manufacturing.
2, strength magnesium alloy in metal and plastic and other engineering materials, has a relatively good strength / weight ratio.
3, die-casting properties in maintaining good structural conditions, magnesium alloy allows the casting wall thickness can reach 0.6 MM, which is the same strength of plastic can not reach. Aluminum alloy die-casting performance also to be in 1.2-1.5MM above when compared with magnesium alloy. Magnesium alloy is easier to die-casting molding, suitable for high-volume die-casting production (production speed up to 1.5 times of aluminum). In addition, magnesium alloy mold wear is also lower than aluminum.
4, shock magnesium absorption has very good stagnation and shock absorption performance, can absorb vibration and noise, used as equipment housing can reduce noise transmission, free from impact and prevent dent damage.
5, rigid magnesium rigidity for aluminum 2 times and higher than most of the plastic. Magnesium has good resistance to stress resistance.
6, high electromagnetic interference magnesium alloy has a good function of blocking electromagnetic waves, suitable for the production of electronic products.
7, good cutting performance magnesium than aluminum and zinc have better cutting, so that magnesium becomes easier to cut and process metal materials.
8, the specific heat capacity of magnesium alloy is small, the cooling speed of the alloy liquid.
9, magnesium alloy and mold steel affinity is small, not easy to adhere to the mold.
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