The paper developed low-melting-Pointalloy cores, through die casting experiment, the cores hole deformed well.
自行研制的低熔点合金型芯，经压铸实验，铸件孔成形完好。
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The results indicate that the classical heat transfer mechanism is suitable for the medium wall load and the potential heat of the low-melting-pointalloy is useful for high wall load.
Though the analyzing of the upper part of oil box and the designing of the structure of the die, the article discusses the characters and advantage of the lowmeltingpointalloy die.