铝及铝合金晶粒细化剂变质相形貌的控制  

The Grain Refiner Appearance Controlling of Aluminum and Aluminum Alloys

作　　者：钟毅[1] 苏云生[1] 林大超[1] 

机构地区：[1]昆明理工大学金属材料系,昆明650093

出　　处：《昆明理工大学学报（理工版）》1999年第3期23-27,共5页Journal of Kunming University of Science and Technology(Natural Science Edition)

摘　　要：介绍熔盐化学反应法生产铝及铝合金晶粒细化剂变质相形貌的控制工艺．通过工艺研究指出，反应温度、时间、搅拌速度、静置温度和时间、加盐的比例、钛的加入量是控制变质相形貌尺寸的关键．优化工艺后获得的块状 Ｔｉ Ａｌ３ 变质相尺寸为７ ～１２５ μｍ ，较进口的 Ｌ Ｓ Ｍ 公司产品变质相１５ ～５０ μｍ 细．This paper presents the grain refiner appearance controlling technology of aluminum and of science and technology aluminum alloys by melt-salt chemical reactions.After the study of its technology it is pointed out that the reaction temperature,reaction time,stirring speed,holding time and holding temperature,the ratio of salt and sponge titanium are the key pcints of grain refiner appearance and dimension controlling.with mind technlogy,the dimension of block TiAl 3,7～12%5?μm, is 15～50?μm finner than,the dimension of block TiAl 3 of the LSM company's prodnct.

关 键 词：铝合金 晶粒细化剂 金相组织 铝 变质相形貌 

分 类 号：TG146.21[一般工业技术—材料科学与工程]