铜合金石墨型铸造

• 作 者: 闵鸿鸣
• 机 构: 求新造船厂
• 出 处: 铸造
• 发表日期: 1965年03期
• 关键词: 石墨型铸造 铜合金 结晶速度 合金组织 铸型材料 铸件结构 金属液 快速凝固 铸造合金 石墨化

一、石墨型铸造的优点石墨型铸造是硬型铸造的一种。同现在常用的铸型材料相比,有下列几个特点:1．石墨具有较高的导热系数、导温系数和热容量(见表1)。因而铸造合金在石墨型中结晶速度快,铸件得到了快速凝固,致使合金组织变细,提高了合金的致密性和机械性能;

First, the advantages of graphite casting Graphite casting is a hard casting. Compared with the commonly used casting materials, there are the following characteristics: 1. Graphite has a high thermal conductivity, thermal conductivity coefficient and heat capacity (see Table 1). Therefore, the casting alloy crystallizes rapidly in the graphite type, the castings are rapidly solidified, causing the alloy structure to be thinner and improving the compactness and mechanical properties of the alloy.