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VACUUM ›› 2018, Vol. 55 ›› Issue (5): 58-61.doi: 10.13385/j.cnki.vacuum.2018.05.12

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Progress in large-scale titanium alloy casting technology - vacuum arc skull investment casting equipment

SONG Qing-zhu, ZHANG Zhe-kui, SUN Zu-lai, E Dong-mei   

  1. Shenyang Vacuum Technology Institute Co., Ltd., Shenyang 110042, China
  • Received:2018-05-30 Online:2018-09-25 Published:2018-10-16

Abstract: The development status of vacuum arc skull investment casting equipment at home and abroad is described. The application of this kind of equipment and the technical characteristics of equipment development companies in various countries are briefly compared and analyzed. Focusing on the electrical parameter design of the core components of the vacuum arc skull casting equipment, the current density characteristics of different conductive structures are summarized and the special phenomena such as the uneven conduction and distribution of the vacuum arc around the electrode rod and molten pool are discussed and analyzed. Finally, several directions of the development of precision casting technology are introduced.

Key words: titanium alloy casting, high power, vacuum arc, arc skull, investment casting

CLC Number: 

  • TF13
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