Title:
CRUCIBLE INDUCTION FURNACE
Document Type and Number:
Japanese Patent JP3176560
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To eliminate the metal with a low melting point in the molten bath of cast iron which is molten in a crucible induction furnace.
SOLUTION: In a crucible induction furnace which melts the raw material of cast iron containing the steel sheet plated with zinc or lead, the inactive gases of 10-16 normal liter/min per unit bath quantity are blown in, when eliminating the metal with a low melting point such as zinc in a molten bath by blowing inactive gases into the molten bath in a melting chamber. In this case, the inside of the melting chamber should be decompressed to 8,700-16,700 pascal by being exhausted to eliminate the metal with a low melting point. By this means, zinc or lead can be eliminated to the allowable content to obtain a high quality molten bath of cast iron between charging stock and draining the molten bath.
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Inventors:
Hiroshi Otsuka
Hiroshi Uemura
Sadahiro Ueno
Hidemi Hattori
Hiroshi Uemura
Sadahiro Ueno
Hidemi Hattori
Application Number:
JP4467797A
Publication Date:
June 18, 2001
Filing Date:
February 13, 1997
Export Citation:
Assignee:
SME General Enterprise
International Classes:
H05B6/02; C21C7/072; C21C7/10; C22B7/00; C22B19/12; F27B14/04; (IPC1-7): C21C7/072; C22B19/12
Domestic Patent References:
| JP7216438A | ||||
| JP490494A | ||||
| JP4232216A | ||||
| JP829064A |
Attorney, Agent or Firm:
Yoshihide Komada