模压成型工艺对粘结NdFeB磁性能的影响  

Effect of die-upsetting technology for bonded NdFeB magnetism performance

作　　者：杨在志[1] 任慧平[1] 

机构地区：[1]内蒙古科技大学材料科学与工程学院,内蒙古包头014010

出　　处：《包头钢铁学院学报》2004年第3期254-257,共4页Journal of Baotou University of Iron and Steel Technology

基　　金：内蒙古科技攻关项目(20020202);教育部科学技术研究重点项目(地方02031)

摘　　要：通过熔体快淬工艺制备合金薄带。The effect of die-upsetting process for bonded NdFe magnetism performance was discussed through experiments.Films of alloy were obtained by the melt spinning technology.Scanning electron microscope (SEM) and X-ray diffraction were used for observing microstructure of alloy and analyzing tropism of crystal.As a result of the experiments,microstructure of films were made up of amorphous,column crystal and equal -axis crystal.A heat treatment technology was used at the temperature of 650 ℃ for 15 minutes,particles of small inches were gained and dispersed distribution.Tropism of crystal is (006), which accords with the texture of easy magnetization.Exchange coupled was strengthened and higher coercivity was gained.The techniques of mixture for additive and magnets powders were optimized,enhancing the density of magnets and making a great contribution for magnets properties in the permanent magnet alloys.The high-energy product is 65 kJ/m^3.

关 键 词：模压成型 晶化处理 添加剂 熔体快淬 

分 类 号：TG132.27[一般工业技术—材料科学与工程]