Title:
HEAT EXCHANGER, HEAT EXCHANGER TUBE MATERIAL AND HEAT EXCHANGER FIN MATERIAL
Document Type and Number:
Japanese Patent JP2022099678
Kind Code:
A
Abstract:
To provide a heat exchanger which makes fins remain on a tube for a long period of time by suppressing an excessive Zn concentration to a fillet, and preventing fillet potential from being excessively low, and has excellent heat exchange performance and corrosion resistance performance, being a heat exchanger which can be obtained by using a single-layer brazing sheet fin material.SOLUTION: In a heat exchanger having an aluminum alloy-made tube in which a working fluid circulates, and aluminum alloy-made fins metallically joined to the tube, the tube is formed by using a heat exchanger tube material having a tube material main body composed of an aluminum alloy, and a Zn-containing film formed at an outer surface of the tube material main body, and containing Zn of 1.0 to 4.5 g/m2 at atom conversion, and the fins are composed of aluminum alloys, and formed by using heat exchanger fin materials having single layers and heat joining functions in a temperature at which a liquid phase rate reaches 5.0% or higher and 35.0% or lower.SELECTED DRAWING: Figure 2
Inventors:
SUZUKI TAICHI
HIGASHIMORI RYO
HIGASHIMORI RYO
Application Number:
JP2020213617A
Publication Date:
July 05, 2022
Filing Date:
December 23, 2020
Export Citation:
Assignee:
UACJ CORP
International Classes:
F28F1/32; B23K1/00; B23K1/19; F28F1/12; F28F19/06; F28F21/08
Attorney, Agent or Firm:
Patent Business Corporation Ashitaba International Patent Office