Method of manufacturing brazable pipes and heat exchanger
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United States of America Patent
Stats
-
Aug 7, 1990
Grant Date -
N/A
app pub date -
May 30, 1989
filing date -
Jul 14, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for producing brazeable pipes particularly for use in heat exchangers, the process comprising preparing a brazing sheet which comprises a core sheet coated with a brazing substance at least on one surface, forming a bulged portion of a semi-circular cross-section in the central section of the brazing sheet, providing apertures in the bulged portion for securing tube ends therein, and rolling the brazing sheet into a cylinder with its opposite ends being butt jointed to each other.
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