Title:
HEATING FURNACE, AND WORKPIECE TEMPERATURE ACQUIRING METHOD IN THE HEATING FURNACE
Document Type and Number:
Japanese Patent JP2019209338
Kind Code:
A
Abstract:
To provide a heating furnace and a workpiece temperature acquiring method in the heating furnace by which a temperature of a workpiece heated in a furnace can be acquired precisely.SOLUTION: A heating furnace includes a low reflection part 80 which is arranged on an outer surface of a heat exchanger W and of which reflectivity of an electromagnetic wave emitted by heat radiation is lower than predetermined reflectivity, and non-contact type thermometers 71-1-n. A temperature of the heat exchanger W is acquired by measuring a temperature of the low reflection part 80 by the thermometers 71-1-n. Thereby, the temperature of the heat exchanger W can be acquired in a state that effect of reflection of the electromagnetic wave emitted by the heat radiation from an electric heater 41 is small, and thus, the heat exchanger W can be heated securely to a target temperature by controlling output of the electric heater 41 or a rotation speed of a drive roller on the basis of the acquired temperature of the heat exchanger W, and bonding failure of the metal components of the heat exchanger W can be suppressed.SELECTED DRAWING: Figure 2
Inventors:
KATSUTA MASABUMI
YOSHIDA MAKOTO
SAOTOME YASUNORI
OSAWA TAKESHI
KADO HIROTAKA
YOSHIDA MAKOTO
SAOTOME YASUNORI
OSAWA TAKESHI
KADO HIROTAKA
Application Number:
JP2018104697A
Publication Date:
December 12, 2019
Filing Date:
May 31, 2018
Export Citation:
Assignee:
UNIV WASEDA
SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP
SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP
International Classes:
B23K1/00; B23K1/008; B23K31/02; F27B9/40; F27D21/00; G01J5/00; G01J5/02; G01J5/60
Attorney, Agent or Firm:
Ebisu International Patent Office