硅黄铜分配阀壳砂型铸造工艺  

Sand Casting Process of Silicon Brass Selector Valve Shell

作　　者：熊举化[1] 谢帮灵[2] 杨为勤 刘恒 XIONG Juhua;XIE Bangling;YANG Weiqin;LIU heng(Liuzhou Vocational and Technical College,Liuzhou 545006,China;Liuzhou City Vocational College,Liuzhou 545036,China;Wuchang Shipbuliding Industry Co.,Ltd.,Wuhan 430064,China;Liu Jing Polytron Technologies Inc,Guangxi,Liuzhou 545005,China)

机构地区：[1]柳州职业技术学院,广西柳州545006 [2]柳州城市职业学院,广西柳州545036 [3]武昌船舶重工集团有限公司,湖北武汉430064 [4]柳州市柳晶科技股份有限公司,广西柳州545005

出　　处：《铸造技术》2018年第7期1473-1476,共4页Foundry Technology

基　　金：广西科技攻关项目(桂科AB16380310);广西教育厅科研课题(KY2015YB479)

摘　　要：硅黄铜ZCuZn16Si4广泛用于制造泵壳、叶轮、水泵活塞和阀体等耐水压零件,渗漏是大型硅黄铜复杂阀体容易出现的问题。介绍了硅黄铜的特性,分析了大型分配阀壳的结构及可能产生的铸造缺陷,并给出了应对措施,探讨大型分配阀壳的砂型铸造工艺方案。结果表明,有效防止了冷隔夹层、缩裂疏松及氧化夹杂等缺陷产生,避免了分配阀壳渗漏情况,成功地进行了批量生产。Silicon brass ZCu Zn16 Si4 is widely used in the manufacture of pump casing,impeller,pump piston,valve body and other water-resistant parts,leakage is a common problem in complex valve bodies of large silicon brass.The characteristics of silicon brass was introduced,the structure of large selector valve shell and the possible casting defects was analyzed,and the countermeasures are given,and the sand casting process of large selector valve shell was discussed.The results show that the defects such as cold insulation interlayer,loose shrinkage crack and oxidation inclusion are effectively prevented.The leakage of selector valve shell is avoided,and the mass production was successfully carried out.

关 键 词：硅黄铜 分配阀壳 砂型铸造 缺陷的防止 

分 类 号：TG291[金属学及工艺—铸造]