HPb59-1黄铜阀体铸造工艺试验研究  

Experimental Research of Casting Technology for HPb59-1 Brass Valve

作　　者：余龙[1] 陆明[1] 刘鹏[1] 黄钦[1] 

机构地区：[1]解放军理工大学,江苏南京210007

出　　处：《铸造技术》2009年第11期1385-1388,共4页Foundry Technology

摘　　要：为了消除HPb59-1黄铜阀体在生产中产生缩孔、缩松和组织粗大等铸造缺陷,通过铸造工艺试验确定:在阀体热节处加设形状适宜的补缩冒口,强化铸件的补缩并将缩孔移出阀体;采用微量硼作为变质添加剂,细化阀体组织,有效地消除了上述铸造缺陷。Casting defects, i.e., shrinkage cavity, porosity and coarse microstructure, were often found in the products of HPb59-1 brass valve body. Experimental studies show that the casting process can be determined. The feeding is improved and the shrinkage can be carried out of the valve using appropriate shape feeding riser in the thermal section of valve body. At the same time, using boron as modification additives, the microstructures can be refined significantly. The abovementioned casting defects could be effectively eliminated by the combination use of feeding riser and boron modifier.

关 键 词：HPB59-1黄铜 缩孔 细化变质 

分 类 号：TG291[金属学及工艺—铸造]