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VACUUM ›› 2025, Vol. 62 ›› Issue (5): 86-90.doi: 10.13385/j.cnki.vacuum.2025.05.13

• Vacuum Metallurgy and Thermal Engineering • Previous Articles     Next Articles

Discussion on Non-Magnetic Yoke Vacuum Induction Furnace

SONG Jingsi, TENG Xinyu, LI Xiuzhang, CHEN Jiuqiang, ZUO Ye, ZHANG Zhekui   

  1. Shenyang Vacuum Technology Institute Co., Ltd., Shenyang 110042, China
  • Received:1999-11-30 Published:2025-09-29

Abstract: Currently, large vacuum induction furnaces commonly use coil structure designs with magnetic yokes, but this traditional configuration may have technical redundancy in smaller capacity furnace types. First, this paper systematically discusses the necessity and optimization path of magnetic yoke configuration for vacuum induction furnaces. Then, based on technical research on mainstream products at home and abroad,the technical characteristics and limitations of the magnetic yoke structure in practical applications are summarized. Subsequently, the feasibility of further expanding the concept of non-magnetic yoke design is explored, and an innovative design scheme of 1 000 kg level non-magnetic yoke coil system is proposed. Finally, the application value of the non-magnetic yoke structure in the 1 000 kg vacuum induction furnace is evaluated from the dimensions of equipment cost, operating efficiency, and maintenance convenience, providing theoretical basis and practical guidance for technological upgrades in related fields.

Key words: vacuum induction furnace, magnetic yoke, superalloy

CLC Number:  TF341.7

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