日立金属非晶带材的发展

The development of Hitachi Metals amorphous ribbons

日立金属是世界第一大非晶带材生产商,2023年更名为博迈立铖(Proterial)。本文对其非晶带材的发展历史进行了回顾,对比了单炉间歇式和多炉连续式非晶制带工艺特点;多炉连续式非晶制带可以实现多炉连浇,带材连续卷取,可以大大提高生产效率和成材率,但对生产设备、工艺稳定性提出了更高的要求。最后介绍了该公司的非晶产品和在新用途、新标准方面的探索,包括开发的高磁感非晶产品HB1M和磁畴细化低铁损产品MaDC-A^(TM),可以有效降低铁心损耗;通过回收废旧非晶配变铁心作为非晶制带原料,可以实现原料成本降低和产品的循环利用;积极拓展其他领域应用,如非晶电机、太阳能发电用非晶电抗器铁心和Ni基非晶焊材等。

Hitachi Metals is the world's largest manufacturer of amorphous ribbons and renamed as Proterial in 2023.In this paper,the development of Hitachi metals amorphous ribbon was reviewed.The process features of single furnace production and continuous multi-furnaces production were compared.In the process of continuous multi-furnaces production,the realizable continuous casting and coiling can greatly enhance the production efficiency and yield,but require high stability of production equipment and process control.Furthermore the development of new products,new application field and new standards about amorphous ribbons were also introduced.The new production HB1M with high saturation induction and magnetic domain controlled low iron loss Fe-based amorphous alloys“MaDC-A^(TM)”can effectively reduce the core loss.A recycling plant to handle the amorphous metal cores used in amorphous transformers was established.The recyclings are used as raw materials for amorphous ribbons to achieve low production cost and recycling of products.They also expand in other areas of application such as amorphous motor,amorphous block core for solar power generation and Ni-based amorphous brazing materials.