Title:
CASTING METHOD AND APPARATUS
Document Type and Number:
Japanese Patent JP3308489
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To execute casting at the best timing of casting at the time of pouring metal into a mold by melting the metal with high frequency induction heating.
SOLUTION: The metal 4 in a crucible 2 is melted with the induction heating using the high frequency which is amplitude-modulated with low frequency and the phenomena, in which the molten metal is raised up in spherical shape at the time of impressing the high frequency to decrease the area in the horizontal plane and the molten metal is formed as flat disk shape at the time of non-impressing the high frequency to increase the area in the horizontal plane, are detected as image data with two-dimensional image sensor 5. The suitable casting timing is decided in a micro-computer 17 based on the area variation of the molten metal synchronized with the low frequency in the image data to execute the casting.
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Inventors:
Yoshiaki Komuro
Hidehisa Tachibana
Hidehisa Tachibana
Application Number:
JP8844298A
Publication Date:
July 29, 2002
Filing Date:
April 01, 1998
Export Citation:
Assignee:
Sansha Electric Co., Ltd.
International Classes:
B22D37/00; B22D2/00; B22D23/00; C22B9/22; F27B14/06; (IPC1-7): B22D23/00; B22D2/00; C22B9/22; F27B14/06
Domestic Patent References:
| JP6424387A | ||||
| JP635863A | ||||
| JP6142895A |
Attorney, Agent or Firm:
Hiroshi Tanaka (2 outside)