Heat exchanger, and fin material for said heat exchanger
Number of patents in Portfolio can not be more than 2000
United States of America
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Sep 10, 2019
Grant Date -
Apr 28, 2016
app pub date -
Jun 2, 2014
filing date -
Jun 2, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
There is provided a heat exchanger and a fin material for the heat exchanger that can suppress occurrence of hollow corrosion in a fin and hold cooling performance for a long period of time under a high corrosion environment. The heat exchanger includes an aluminum tube through which a working fluid circulates and an aluminum fin which is bonded to the tube. The fin has a region B around a grain boundary, and a region A around the region B. In the region B, 5.0×104 pieces/mm2 less of Al—Fe—Mn—Si based intermetallic compound, each of which has equivalent circle diameters of 0.1 to 2.5 μm, are present. In the region A, 5.0×104 pieces/mm2 to 1.0×107 pieces/mm2 of Al—Fe—Mn—Si based intermetallic compound, each of which has equivalent circle diameters of 0.1 to 2.5 μm, are present.
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