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Title:
ELECTROCONDUCTIVE HEATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/179865
Kind Code:
A1
Abstract:
This electroconductive heating device energizes and heats a metal pipe material, the electroconductive heating device being provided with: a first electrode that holds the metal pipe material; a second electrode that holds the metal pipe material; a power supply unit that provides an electric current between the first electrode and the second electrode while the metal pipe material is held by the first electrode and the second electrode; and a bypass unit that is connected to a first portion and a second portion of the metal pipe material at a position between the first electrode and the second electrode, and thus allows a portion of the electric current to bypass.

Inventors:
ISHIZUKA Masayuki (5-2, Sobiraki-cho, Niihama-sh, Ehime 88, 〒7928588, JP)
NOGIWA Kimihiro (5-2, Sobiraki-cho, Niihama-sh, Ehime 88, 〒7928588, JP)
IDE Akihiro (5-2, Sobiraki-cho, Niihama-sh, Ehime 88, 〒7928588, JP)
UENO Norieda (1-1, Osaki 2-chome, Shinagawa-k, Tokyo 25, 〒1416025, JP)
SAIKA Masayuki (5-2, Sobiraki-cho, Niihama-sh, Ehime 88, 〒7928588, JP)
Application Number:
JP2018/004070
Publication Date:
October 04, 2018
Filing Date:
February 06, 2018
Export Citation:
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Assignee:
SUMITOMO HEAVY INDUSTRIES, LTD. (1-1 Osaki 2-chome, Shinagawa-ku Tokyo, 25, 〒1416025, JP)
International Classes:
H05B3/00; B21D26/047; B21D37/16
Domestic Patent References:
WO2011045845A12011-04-21
Foreign References:
JP2003181556A2003-07-02
JPH06241376A1994-08-30
JP2014173148A2014-09-22
JPH0131276B21989-06-23
JPH0832926B21996-03-29
JPS51130942A1976-11-13
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (SOEI PATENT AND LAW FIRM, Marunouchi MY PLAZA 9th fl. 1-1, Marunouchi 2-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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