【摘要】 本文研究了几种添加剂（Na₂C上O₃+C,K₂CO₃+C,CaCO₃+C,S,CaO+C,Ca）对铜铅合金凝固组织的影响,在实验工作中采用了三种实验方法（普通铸造法、颗粒感应加热熔,铸法和液淬法）。研究结果表明,几种添加剂都能有效地细化组织,其中少量 S,钙和钙的化合物使铅相呈点、块状分布,K₂CO₃C 和 Na₂CO₃C 使铅相形态呈半网状分布更多还原

【Abstract】 The effect of several additives on the solidified structure of copper-lead alloys was studied in the laboratory by three methods（the common casting method,the grain-induction heating-melting- casting method and the liquid-quenching method）.The results obtained are as follows:all of the addi- tives used in the study can refine the structnre of the copper-lead alloys;an addition of small amount of sulphur or calcium or calcarious compounds makes the lead phase in the copper-lead alloys dispersed evenly as isolated chunks.K₂CO₃+C or Na₂CO₃+C makes the lead phase in the form of network.更多还原