摘要
利用自主研发的高温微波窑工程样机,开展了锶铁氧体永磁工业化微波烧结试验,以研究大型微波烧结设备在永磁材料产业中应用的实际效果。介绍了试验采用的微波烧结设备和工艺,并就所烧产品的磁性能以及合格率等方面与传统电热窑炉进行了对比。结果表明,该窑炉能高效、稳定地运行,产品磁性能及一致性完全合格,同时表现出了烧结周期短、产品烧结及磨洗加工合格率都有所提高的特点。本文也指出了微波窑工程样机及此类设备在实际应用过程中有待解决的一些问题。
Recently, we have made trial runs on manufacture of M-type strontium ferrite magnets using a microwave sintering kiln, developed by ourselves, to prove feasibility of industrial application of microwave sintering method in a large-scale production. In this paper, the microwave processing equipment and sintering method are described in detail. In addition, the magnetic performance and yield of sintered ferrite products are compared to those in case of conventional sintering method. The results show that this prototype kiln is more energy-efficient, and has many advantages, such as better magnetic performance, higher product yield and shorter sintering cycle, in comparison with the electrical heating roller hearth kiln. Some issues regarding the microwave sintering kiln and the sintering process are also discussed.
出处
《真空电子技术》
2013年第6期18-22,27,共6页
Vacuum Electronics
基金
中国航天科工集团重大自主创新项目(2011-M-8)
关键词
锶铁氧体
微波烧结
工业应用
Strontium ferrite magnet, Microwave sintering, Industrial application
