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Title:
DEGREASING FURNACE
Document Type and Number:
Japanese Patent JP2005232541
Kind Code:
A
Abstract:

To reduce the time required for degreasing while the generation ratio of defects accompanying the rapid rise in the temperature of a work is reduced.

The inside of a furnace body 1 is provided with temperature sensors 7a, 7b for measuring atmospheric temperature, and first and second temperature sensors 7c, 7d for measuring the temperature of a work W. A controller 10 judges that the rapid increase in the temperature of the work W is arisen based on the temperature difference between the atmospheric temperature measured with temperature sensors 7a, 7b and the surface temperature of the work W measured by the temperature sensors 7c, 7d, and suppresses the rapid rise in the temperature of the work W by the control of the pressure in the furnace body, the control of the concentration in oxygen or cooling with cooling gas.


Inventors:
SATO MASAHIRO
YOSHIDA HIROYUKI
Application Number:
JP2004043374A
Publication Date:
September 02, 2005
Filing Date:
February 19, 2004
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
B22F3/10; F27B17/00; F27D19/00; F27D21/00; (IPC1-7): B22F3/10; F27B17/00; F27D19/00; F27D21/00
Attorney, Agent or Firm:
Keisei Nishikawa
Atsuo Mori