锡青铜大口径薄壁导套的离心铸造及工艺改进  

Centrifugal Casting of Large Diameter and Thin Wall Tin Bronze Guide Sleeve and Its Process Improvement

作　　者：刘海娜 王彦婷 杨为勤 刘领兵 LIU Hai-na;WANG Yan-ting;YANG Wei-qin;LIU Ling-bing(Huanghe Jiaotong University,Jianzuo 454950,Henan,China;Wuchang Shipbuliding Industry Co.,Ltd.,Wuhan 430064,Hubei,China;Jiaozuo Taixin Machinery Manufacturing Co.,Ltd.,Jianzuo 454450,Henan,China)

机构地区：[1]黄河交通学院,河南焦作454950 [2]武昌船舶重工集团有限公司,湖北武汉430064 [3]泰鑫机械制造有限责任公司,河南焦作454450

出　　处：《铸造》2023年第12期1642-1648,共7页Foundry

基　　金：河南省智能制造技术与装备工程技术研究中心(编号:3118210370)。

摘　　要：大口径薄壁导套材质为ZCuSn5Pb5Zn5,质量要求较高,采用了大型滚轮式离心机生产。根据估算铸型最高温度,给出了对铸型是否需要采用水冷措施的判断条件。在大型滚轮式离心机上浇注直径大且长度短的套类时,铸型可采用垫空补足方法。对于大口径薄壁铸件,重点要防止铸件内产生夹杂。首件采用缝隙式浇道浇注,加工后产品因有夹杂而报废。经工艺改进后,采用双排雨淋式浇道,8件产品组织致密,无夹杂缺陷,质量良好。The large-diameter thin-walled guide sleeve,made of ZCuSn5Pb5Zn5,has high quality requirements,and was produced by a large roller centrifuge.According to the estimation of the maximum temperature of the mold,the judgment conditions of whether the mold needs to be water-cooled were given.When large diameter and short length sleeves on the equipment was casted,the method of flling up the gap can be used for the casting mold.For the large diameter and thin wall castings,it is important to prevent inclusions in the castings.The first piece was poured by slot pouring pipe,and the processed product was scrapped due to inclusion.After the process improvement,the double-row deluge pouring pipe was adopted,and the 8 products were compact in structure,free of inclusion defects and good in quality.

关 键 词：锡青铜 大口径薄壁导套 离心铸造 

分 类 号：TG249.4[金属学及工艺—铸造]