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Title:
HEAT TRANSFER PIPE, AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2015059716
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To secure a heat transfer property of a heat transfer pipe, and to reduce a manufacturing cost of the heat transfer pipe.SOLUTION: A manufacturing method of a heat transfer pipe 10 of the invention comprises: a powder contact process for making metal powder 32 contact with an internal face 12A of a pipe body 12; and a welding process for creating a molten pool by melting a part of the pipe body 12 and a part of the metal powder 32 by irradiating a high-energy beam 22 toward the pipe body 12 and the metal powder 32 from the outside of the pipe body 12 in a state that the metal powder 32 is made to contact with an internal face 12A of the pipe body 12, and for obtaining the heat transfer pipe 10 by integrally forming salient parts 14 salient toward the inside of the pipe body 12 at the pipe body 12 by solidifying the molten pool.

Inventors:
INAGAKI MAKOTO
MATSUMOTO HITOSHI
MATSUMOTO MASAMI
AMAKURA KOSUKE
Application Number:
JP2013194274A
Publication Date:
March 30, 2015
Filing Date:
September 19, 2013
Export Citation:
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Assignee:
TOKYO GAS CO LTD
PAPASU KK
International Classes:
F28F1/40; B23K15/00; B23K26/046; B23K26/34
Domestic Patent References:
JPS63189793A1988-08-05
JPS6114033A1986-01-22
JP2011183427A2011-09-22
JP2002322501A2002-11-08
JP2015058455A2015-03-30
JP2015058457A2015-03-30
JP2015059715A2015-03-30
JP2008523347A2008-07-03
JPH09239563A1997-09-16
JPH06109392A1994-04-19
JPS63189793A1988-08-05
JPS6114033A1986-01-22
JP2011183427A2011-09-22
JP2002322501A2002-11-08
JP2015058455A2015-03-30
JP2015058457A2015-03-30
JP2015059715A2015-03-30
JP2008523347A2008-07-03
Foreign References:
US20080251243A12008-10-16
US20080251243A12008-10-16
Attorney, Agent or Firm:
Patent business corporation solar international patent firm