Title:
METHOD FOR PRODUCING PIPE HAVING BUILT-IN FIN, AND METHOD FOR PRODUCING DOUBLE-WALLED PIPE
Document Type and Number:
WIPO Patent Application WO/2018/088395
Kind Code:
A1
Abstract:
This method for producing a built-in fin-equipped pipe (30) in which a spiral-shaped fin (10) is provided inside a pipe (20) involves inserting a plate-shaped fin material (11) into the interior of the pipe (20), twisting the fin material (11) inside the pipe (20), and forming the spiral-shaped fin (10).
Inventors:
OONO HIROYUKI (JP)
Application Number:
PCT/JP2017/040114
Publication Date:
May 17, 2018
Filing Date:
November 07, 2017
Export Citation:
Assignee:
CALSONIC KANSEI CORP (JP)
International Classes:
F28F1/40; F28D7/10
Foreign References:
| GB1028000A | 1966-05-04 | |||
| JPS59145964U | 1984-09-29 | |||
| JP2010144970A | 2010-07-01 | |||
| JP2002318083A | 2002-10-31 | |||
| JPS6198760U | 1986-06-24 |
Other References:
See also references of EP 3508808A4
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
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