BRAZING TUBE, METHOD FOR MANUFACTURING SAME, AND HEAT EXCHANGER

Title:

BRAZING TUBE, METHOD FOR MANUFACTURING SAME, AND HEAT EXCHANGER

Document Type and Number:

WIPO Patent Application WO/2020/196740

Kind Code:

A1

Abstract:

This brazing tube (22) is made from aluminum or an aluminum alloy and comprises a flat tube main body (12) with a front surface (12a), a back surface (12b), and short-side surfaces (12c), a brazing composition layer (16) being formed on the short-side surfaces (12c), wherein: the brazing composition layer is formed continuously, in the longitudinal direction of the tube main body (12), on the short-side surfaces (12c) with at least one uncoated section (17) interposed therebetween; and the width of the uncoated section (17), which follows the longitudinal direction of the tube main body, is 0.5–1 mm.

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Inventors:

UESUGI RYUJI (JP)
HYOGO YASUNORI (JP)
KUME HIDEO (JP)

Application Number:

PCT/JP2020/013631

Publication Date:

October 01, 2020

Filing Date:

March 26, 2020

Export Citation:

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Assignee:

MITSUBISHI MATERIALS CORP (JP)
MITSUBISHI ALUMINIUM (JP)

International Classes:

C22C21/00; B23K35/363; F28D1/053; F28F1/02; F28F1/32; F28F21/08

Domestic Patent References:

WO2013161792A1

2013-10-31

Foreign References:

JP2019011922A

2019-01-24

Attorney, Agent or Firm:

MATSUNUMA Yasushi et al. (JP)

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