Title:
BRAZING TUBE, METHOD FOR MANUFACTURING SAME, AND HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2020/196763
Kind Code:
A1
Abstract:
This brazing tube 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 being formed on the short-side surfaces (12c), wherein: first brazing composition layers (16) are formed 5–30 µm thick on the short-side surfaces; and second brazing composition layers (17) which are 0.5–15 µm thick are formed on front-surface-side corner portions extending from the front surface (12a) to the short-side surfaces (12c), and on back-surface-side corner portions of portions extending from the back surface (12b) to the short-side surfaces (12c).
Inventors:
UESUGI RYUJI (JP)
HYOGO YASUNORI (JP)
KUME HIDEO (JP)
HYOGO YASUNORI (JP)
KUME HIDEO (JP)
Application Number:
PCT/JP2020/013693
Publication Date:
October 01, 2020
Filing Date:
March 26, 2020
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
MITSUBISHI ALUMINIUM (JP)
MITSUBISHI ALUMINIUM (JP)
International Classes:
C22C21/00; B23K35/363; F28D1/053; F28F1/02; F28F1/32; F28F21/08
Domestic Patent References:
| WO2018147375A1 | 2018-08-16 | |||
| WO2013161792A1 | 2013-10-31 |
Foreign References:
| JP2019011922A | 2019-01-24 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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