Title:
METAL-MATERIAL-CHARGING DEVICE FOR VACUUM MELTING AND A METHOD FOR THE SAME
Document Type and Number:
WIPO Patent Application WO/2011/027928
Kind Code:
A1
Abstract:
The present invention relates to: a metal-material-charging device for vacuum melting, where a metal material is melted in a vacuum environment, whereby the metal material can be charged into a vacuum melting chamber in a stable fashion while keeping the degree of vacuum constant; and a method for the same. The metal-material-charging device for vacuum melting of the present invention comprises: a vacuum-melting chamber having an air-discharge tube on the upper side; a first material-introduction tube of which one end is connected to one side of the vacuum-melting chamber; a second material-introduction tube of which one end is connected to the other end of the first material-introduction tube, and which has an air-discharge tube on one side; a vacuum valve interposed between the first and second material-introduction tubes; a support plate which is integrally provided on the other end of the second material-introduction tube, and which has a material-introduction hole communicating with an internal passageway of the second material-introduction tube; a moving plate which is provided in such a way as to be able to travel forwards and backwards on the support plate in such a way as to make hermetic contact; and a charging plunger which is provided on the moving plate and is provided so as to travel forwards and backwards inside the first and second material-introduction tubes.
Inventors:
KO, Dong Geun (49-55, Gamcheon 1-dong Saha-gu, ilBusan 604-802, 604-802, KR)
Application Number:
KR2009/005483
Publication Date:
March 10, 2011
Filing Date:
September 25, 2009
Export Citation:
Assignee:
NTT CO., LTD. (265-17, Hakjang-dong Sasang-gu, Busan 617-844, 617-844, KR)
주식회사 엔티티 (부산광역시 사상구 학장동 265-17, 617-844 Busan, 617-844, KR)
주식회사 엔티티 (부산광역시 사상구 학장동 265-17, 617-844 Busan, 617-844, KR)
International Classes:
F27B14/04
Attorney, Agent or Firm:
LEE, Dong Ki (2F Bubong Bldg, 735-36 Yeoksam-dongGangnam-gu, Seoul 135-080, 135-080, KR)
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