Some characteristics different from those of aluminum alloy should be considered in the design of die casting die of magnesium alloy
Release time:2023-11-23
Some characteristics different from those of casting-china.com' target='_blank'>aluminum alloy should be considered in the design of die casting die of magnesium alloy
In most cases, magnesium alloy die casting produces products similar to other alloy die casting parts. Magnesium alloy die casting dies are also similar to aluminum and zinc alloy die casting dies. However, due to some characteristics of magnesium alloy different from aluminum alloy, it is necessary to give full consideration to the design of die casting mold, so as to design a reasonable die casting mold, so as to produce magnesium alloy die casting efficiently and economically.
1. Characteristics of magnesium alloy
The proportion of light magnesium is only 1.8G/CM3, the proportion of aluminum alloy is 2.7G/CM3, magnesium alloy is 30% lighter than aluminum alloy, 80% lighter than steel. Therefore, magnesium alloy has become an ideal material for parts manufacturing in automobiles and portable electronic products.
Magnesium alloy has an excellent strength/weight ratio in engineering materials such as metals and plastics.
Under the condition of maintaining a good structure, the magnesium alloy allows the casting wall thickness to reach a minimum of 0.6mm, which is impossible for plastics at the same strength. The die-casting performance of aluminum alloy can also be compared with magnesium alloy when it is above 1.2-1.5mm. Magnesium alloy is easier to die casting, suitable for mass die-casting production (production speed up to 1.5 times that of aluminum). In addition, the wear of magnesium alloy molds is also lower than that of aluminum.
④ Shock absorption magnesium has excellent hysteretic shock absorption performance, can absorb vibration and noise, used as equipment housing can reduce noise transmission, prevent impact and prevent sag damage.
⑤ The rigidity of rigid magnesium is 2 times that of aluminum and higher than most plastics. Magnesium has good stress resistance.
High electromagnetic interference barrier magnesium alloy has good electromagnetic wave blocking function, suitable for the production of electronic products.
⑦ Good machinability Magnesium has better machinability than aluminum and zinc, making magnesium a metal material that is easier to machinability.
The specific heat capacity of magnesium alloy is small, and the cooling speed of alloy liquid is fast.
⑨ The affinity of magnesium alloy and mold steel is small, and it is not easy to adhere to the mold.
