Title:
WELDING METHOD AND WELDING STRUCTURE OF THIN TUBE IN HEAT EXCHANGER
Document Type and Number:
Japanese Patent JP2001041669
Kind Code:
A
Abstract:
To obtain a TIG welding method and a welding structure for thin stainless tube in which the tube is prevented from melting and dripping during welding operation.
A first thin tube 1 is fitted, at the end part thereof, with a second thin tube 2 sufficiently thicker than the first thin tube 1. At the joint of both tubes, a part of the second thin tube 2 is welded annularly from the outer circumference by TIG welding and the inner surface of the second thin tube 2 is secured to the outer surface of the first thin tube 1.
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Inventors:
SAKAI TAIJI
Application Number:
JP21797499A
Publication Date:
February 16, 2001
Filing Date:
July 30, 1999
Export Citation:
Assignee:
TOYO RADIATOR CO LTD
International Classes:
F28F1/00; (IPC1-7): F28F1/00
Attorney, Agent or Firm:
Kubota Takumi