不同铸造方法对船用螺旋桨毂成型质量的影响  

Effect of casting method on the quality of marine propeller hubs

作　　者：曹志强[1] 任相诚 陈飞[1] 接金川[1] 王同敏[1] 曹安琪[1] 邹龙江[1] 李廷举[1] 

机构地区：[1]大连理工大学材料科学与工程学院,辽宁大连116024

出　　处：《武汉科技大学学报》2014年第1期9-13,共5页Journal of Wuhan University of Science and Technology

基　　金：国家自然科学基金资助项目(51071035@51375070);高等学校博士学科点专项科研基金资助项目(20100041110030);大连理工大学大学生创新训练项目

摘　　要：采用ZCuAl9Fe4Ni4Mn2铝青铜合金为结构材料,研究3种不同铸造方法对船用桨毂组织性能的影响。结果表明,重力铸造桨毂窗口下方有大量氧化夹渣存在;低压铸造容易获得组织致密、性能优良的桨毂,但工序较多;离心铸造可获得较为致密的桨毂断面组织,二次氧化夹渣状况较重力铸造得到明显改善,但离心转速超过150r/min时,容易产生缩孔和缩松。ZCuAl9Fe4Ni4Mn2 aluminum bronze alloy was used to investigate the effect of gravity ,cen-trifugal ,low-pressure casting methods on the structure and properties of marine propeller hubs .The experimental results show that there are a lot of oxidation slags under the window of marine propeller hub with gravity casting method ,while low-pressure casting method can yield hubs of compact struc-ture and perfect properties ,which ,however ,is complex and calls for huge investment in equipment . Centrifugal casting is beneficial for obtaining hubs of compact structure and can effectively remove secondary oxidation slags formed in gravity casting process ;however ,when the speed of centrifugal casting is more than 150 r/min ,shrinkage porosity and shrinkage cavity are likely to appear .

关 键 词：ZCuAl9Fe4Ni4M n2铝青铜 船用螺旋浆毂 重力铸造 离心铸造 低压铸造 

分 类 号：TG249.3[金属学及工艺—铸造] TG249.2