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Title:
THREE-DIMENSIONAL HOT-BENDING AND QUENCHING DEVICE AND THREE-DIMENSIONAL HOT-BENDING AND QUENCHING METHOD FOR STEEL PIPE
Document Type and Number:
WIPO Patent Application WO/2017/164016
Kind Code:
A1
Abstract:
This three-dimensional hot-bending and quenching device comprises: a sending device for sending a pipe body in an axial direction; an induction heating coil disposed in such a manner as to surround an extending line in the pipe body sending direction of the sending device; a cooling device disposed to be adjacent to the induction heating coil on the downstream side thereof in the pipe body sending direction of the sending device; and a processing force applying device for applying a processing force upon the pipe body. In this three-dimensional hot-bending and quenching device, the induction heating coil comprises bent portions, each having an inner surface that is bent, and a magnetic body member is disposed on each of the bent portions of the induction heating coil in such a manner as to cover each of the inner surfaces of the induction heating coil.

Inventors:
HAMADA, Ryuji (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
SHIMADA, Naoaki (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
UEMATSU, Kazuo (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
OKADA, Nobuhiro (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
Application Number:
JP2017/010277
Publication Date:
September 28, 2017
Filing Date:
March 14, 2017
Export Citation:
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Assignee:
NIPPON STEEL & SUMITOMO METAL CORPORATION (6-1 Marunouchi 2-chome, Chiyoda-ku Tokyo, 71, 〒1008071, JP)
International Classes:
H05B6/10; B21D7/16; C21D1/18; C21D9/08; C21D9/50
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (3-17, Shinjuku 4-chome Shinjuku-k, Tokyo 22, 〒1600022, JP)
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