ZL205A薄壁异型铸件金属型铸造工艺研究  

Study on Metal Mould Casting Process of ZL205A Thin-walled Castings

作　　者：迟秀梅[1] 何凯[1] 肖旅[1] 

机构地区：[1]上海航天精密机械研究所,上海201600

出　　处：《航天制造技术》2015年第3期23-25,28,共4页Aerospace Manufacturing Technology

摘　　要：以ZL205A薄壁异型铸件为研究对象,结合铸件结构特点和工艺控制要点,制定了切实可行的铸造工艺方案,浇注了薄壁异型铝合金铸件。结果表明:合理的浇注系统和退让性好的芯砂,可有效防止裂纹缺陷;选择、设计合理的冷铁放置位置和厚度可降低疏松缺陷等级,防止缩裂缺陷的产生;陶瓷过滤网可有效地防止气孔和氧化夹杂缺陷。With ZL205 A thin-walled casting as the research project,combining with the characteristics of the casting structure and process control points,a practical scheme of casting process was formulated.The thin-walled abnormity aluminum alloy casting was poured.The results show that reasonable pouring system and the core sand with good deformability can prevent the crack defects effectively.Choosing reasonable position and thickness of cold iron can reduce loose defect levels and prevent shrinkage crack.Finally,ceramic filter can effectively prevent the pores and oxide inclusion defects.

关 键 词：ZL205A 铸造 冷铁 薄壁异型铸件 

分 类 号：TG292[金属学及工艺—铸造]