Title:
HEAT EXCHANGER TUBE
Document Type and Number:
WIPO Patent Application WO/2011/090059
Kind Code:
A1
Abstract:
A heat exchanger tube which comprises an extruded tube of an Al alloy and a flux layer that is formed on the outer surface thereof and that comprises Si powder, a Zn-containing flux, and a binder, characterized in that: the coating weight of the Si powder on the extruded tube is 1 to 5g/m2; the coating weight of the Zn-containing flux thereon is 3 to 20g/m2; and the Si powder has a 99% particle diameter (D99) of 5 to 20μm, and a content of coarse particles of less than 1ppm, said coarse particles being particles having diameters of not less than five times D99. D99 refers to a particle diameter at which the cumulative volume of particles having diameters of not more than that particle diameter accounts for 99% of the total particle volume.
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Inventors:
KATSUMATA MASAYA (JP)
HYOGO YASUNORI (JP)
WATANABE AKIRA (JP)
HYOGO YASUNORI (JP)
WATANABE AKIRA (JP)
Application Number:
PCT/JP2011/050832
Publication Date:
July 28, 2011
Filing Date:
January 19, 2011
Export Citation:
Assignee:
MITSUBISHI ALUMINIUM (JP)
KATSUMATA MASAYA (JP)
HYOGO YASUNORI (JP)
WATANABE AKIRA (JP)
KATSUMATA MASAYA (JP)
HYOGO YASUNORI (JP)
WATANABE AKIRA (JP)
International Classes:
B23K35/363; B23K35/22; C22C21/00; C22C21/02; F28F21/08
Foreign References:
JP2009106947A | 2009-05-21 | |||
JP2004330233A | 2004-11-25 | |||
JP2007275898A | 2007-10-25 | |||
JP2009184017A | 2009-08-20 | |||
JPH1034375A | 1998-02-10 | |||
JPH07227695A | 1995-08-29 |
Other References:
See also references of EP 2527078A1
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
Download PDF:
Claims:
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