加锡是很重要的，因为它可以改进熔融合金的流动性，从而使其易于注入模具。
Tin is important as it imparts an improved "fluidity" to the molten alloy and helps in mold filling.
如果施振温度过低，熔融合金粘度就会增大，致使声空化和声流效应发挥不了应有的作用。
On the contrary, when melt temperature is too low, the melt viscidity becomes intensive, so cavitation and acoustic streaming are in no effect.
根据以前工作推导出的计算真空熔融合金中微量元素挥发速率的公式，对铁基合金制作了数表。
On the basis of former formula for calculating vaporization rate constant a digital table was made for iron based alloys.
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