Title:
VACUUM MELTING DEVICE FOR LIGHT METALS AND A VACUUM MELTING METHOD EMPLOYING THE SAME
Document Type and Number:
WIPO Patent Application WO/2011/027929
Kind Code:
A1
Abstract:
The present invention relates to a light-metal vacuum melting device and to a vacuum melting method therefor, and more specifically it relates to a light-metal vacuum melting device which melts light-metal starting materials highly effectively in a high-vacuum state and thus can not only enhance the melting efficiency, gas (bubble) eliminating efficiency and the like but can also produce a good quality melt pool, as well as to a vacuum melting method employing the same. The vacuum melting device of the present invention comprises: a vacuum melting chamber equipped with an air-discharge tube on the upper side; a melting furnace which is formed in the shape of a pipe of a predetermined length, and of which one end is connected obliquely at a predetermined angle to one side of the vacuum melting chamber; a plurality of heating units disposed in line along the outer circumferential surface of the melting furnace; a stopper which is disposed within the bore at one end of the melting furnace, and which has a plurality of melt-pool passing holes; a material-introduction tube which is connected to the other end of the melting furnace, and which is equipped with an air-discharge tube on one side; a first and a second vacuum valve respectively provided at the two ends of the material-introduction tube; a first melt-pool heat-preserving tube which connects through to the other side of the vacuum melting chamber; and a second melt-pool heat-preserving tube which connects through to the first melt-pool heat-preserving tube.
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Inventors:
KO, Dong Geun (49-55, Gamcheon 1-dong Saha-gu, ilBusan 604-802, 604-802, KR)
Application Number:
KR2009/005484
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-dong, Gangnam-gu, Seoul 135-080, 135-080, KR)
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