Title:
TEMPERATURE CONTROL METHOD IN HIGH FREQUENCY HEATING
Document Type and Number:
Japanese Patent JP2002372382
Kind Code:
A
Abstract:
To enhance temperature control accuracy of a work, i.e., a steel band sprayed with powder, when the temperature of the work is controlled by the atmospheric temperature at the time of high frequency heating.
When an work 7 including a steel band is subjected to high frequency heating with an output controlled not lower than the Curie point of the steel band while traveling in a heating furnace at a controlled speed, light radiated from the work 7 is received by a radation thermometer 12 and the temperature is measured. The measured temperature is compared with a reference temperature (3) and the high frequency output is corrected depending on the temperature difference (2).
Inventors:
KAMIYA YASUNORI
SATO HIDETOMO
TSUZUKI TSUNEYA
KOBAYASHI HIROAKI
OTA AKIO
SATO HIDETOMO
TSUZUKI TSUNEYA
KOBAYASHI HIROAKI
OTA AKIO
Application Number:
JP2001181551A
Publication Date:
December 26, 2002
Filing Date:
June 15, 2001
Export Citation:
Assignee:
TAIHO KOGYO CO LTD
JAPAN AJAX MAGNETHERMIC CO LTD
JAPAN AJAX MAGNETHERMIC CO LTD
International Classes:
H05B6/06; B22F3/10; C21D1/00; F27D19/00; H05B6/10; (IPC1-7): F27D19/00; B22F3/10; C21D1/00; H05B6/06; H05B6/10
Domestic Patent References:
| JPH03193856A | 1991-08-23 | |||
| JPH08246122A | 1996-09-24 | |||
| JPH11197990A | 1999-07-27 | |||
| JP2002012902A | 2002-01-15 | |||
| JPS5578491A | 1980-06-13 | |||
| JPS6484589A | 1989-03-29 | |||
| JPH03281704A | 1991-12-12 | |||
| JPH04147596A | 1992-05-21 |
Attorney, Agent or Firm:
Murao Takuo
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