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众所周知,共析点的锌—铝二元合金,具有较高的阻尼(减震)性,但因其强度低而未被应用。作者开发了压铸用的锌—铝合金,其商标为Cosmal—Z,或称科斯马耳锌—铝合金。由于在此合金中添加了硅、铜和锰,提高了强度,但又不降低其固有的高阻尼性。这些合金中,ZM—11含Al 22%,ZM—3含Al 40%和超利斯马耳含Al 60%。ZM—1在室温时、ZM—3在高达100℃时、以及超科斯马耳在高达150℃时,均有很高的强度和振动阻尼特性。此外,这些合金在压铸时有很好的铸造性能,与现有的铝压铸合金相比,用科斯马耳高阻尼性合金生产薄壁压铸件是可能的。
It is well-known that the eutectoid point of zinc-aluminum binary alloy, with high damping (shock absorption) of sex, but because of its low strength has not been applied. The authors developed a zinc-aluminum alloy for die-casting, which is marketed as Cosmal-Z, or Cosmazole-Aluminum alloy. Due to the addition of silicon, copper and manganese to this alloy, the strength is increased without losing its inherent high damping. Among these alloys, ZM-11 contains 22% Al, ZM-3 40% Al, and 60% Alleulsil Al. ZM-1 has high strength and vibration damping characteristics at room temperature, ZM-3 up to 100 ° C, and supercosomax up to 150 ° C. In addition, these alloys have good casting properties when die-cast and compared to existing aluminum die-cast alloys, it is possible to produce thin-walled die-castings with Kosmir high-damping alloys.