Title:
TUBE FOR HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2014/115512
Kind Code:
A1
Abstract:
An inner post part (22) is brazed to the joint part (23) of a tube main body part (21) by means of brazing filler material (202). A flux (300) is provided on the brazed joint surface of the joint part (23) and the inner post part (22) to chemically remove oxidation film on the brazed joint surface. A brazing surface formation part (21a) forming the brazed joint surface in the joint part (23) is formed of a material other than the brazing filler material (202) and containing a reaction material that reacts with the flux (300). The brazing surface formation part (21a) is covered by a coating material (400) formed of a material other than the reaction material. Thus, it is possible to prevent deterioration in the ability to accomplish brazing to a joined member in a heat exchanger tube containing a material that degrades the brazing ability.
Inventors:
HONMA NOBUHIRO (JP)
YAMAMOTO MICHIYASU (JP)
TESHIMA SHOEI (JP)
TERAMOTO HAYAKI (JP)
YAMAMOTO MICHIYASU (JP)
TESHIMA SHOEI (JP)
TERAMOTO HAYAKI (JP)
Application Number:
PCT/JP2014/000174
Publication Date:
July 31, 2014
Filing Date:
January 16, 2014
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F28F21/08; B21D53/06; B23K1/00; B23K1/19; B23K1/20; F28F1/02; F28F19/06; B23K101/14; B23K103/10
Foreign References:
| JP2011520032A | 2011-07-14 | |||
| JP2002012935A | 2002-01-15 | |||
| JP2008189998A | 2008-08-21 | |||
| JP2005307252A | 2005-11-04 | |||
| JP2000026931A | 2000-01-25 | |||
| JPH11315337A | 1999-11-16 | |||
| JP2006226613A | 2006-08-31 | |||
| JP2009162447A | 2009-07-23 | |||
| US6234243B1 | 2001-05-22 |
Attorney, Agent or Firm:
KIN, Junhi (JP)
Gold Junki (JP)
Gold Junki (JP)
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