Title:
HEATING COIL
Document Type and Number:
WIPO Patent Application WO/2016/021189
Kind Code:
A1
Abstract:
A heating coil is configured to inductively heat an inner surface of a tubular workpiece. The heating coil includes a head portion configured to be inserted into the workpiece and to inductively heat the inner surface of the workpiece, and a pair of lead portions connected to one end of the head portion and the other end of the head portion respectively. The head portion and the lead portions are configured as pipe members forming a series of flow channels through which coolant flows. A cross-sectional area of the flow channel inside each of the lead portion is greater than a cross-sectional area of the flow channel inside the head portion.
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Inventors:
YASUTAKE HIDEHIRO (JP)
Application Number:
PCT/JP2015/003926
Publication Date:
February 11, 2016
Filing Date:
August 04, 2015
Export Citation:
Assignee:
NETUREN CO LTD (JP)
International Classes:
H05B6/38; H05B6/10; H05B6/42
Foreign References:
| JP2013170287A | 2013-09-02 | |||
| US4698473A | 1987-10-06 | |||
| DE19843087A1 | 2000-03-23 | |||
| US3258573A | 1966-06-28 |
Attorney, Agent or Firm:
TAKAMATSU, Takeshi et al. (Toranomon East Bldg. 9F 7-13, Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, JP)
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