METHOD OF COATING A PART OF A HEAT EXCHANGER AND HEAT EXCHANGER
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United States of America Patent
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Issued Date -
Sep 26, 2013
app pub date -
Nov 30, 2011
filing date -
Nov 30, 2010
priority date (Note) -
Abandoned
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Abstract
A method of coating an internal surface of an assembled heat exchanger is provided. The heat exchanger comprising a first passage for a first heat exchange fluid, and a second passage for a second heat exchange fluid. The first and second passages are separated by at least one heat transfer element. The heat transfer element has a first surface facing the first passage. The method comprises; pre-treating the first surface by circulating at least one pre-treatment liquid through the first passage of the heat exchanger and a pre-treatment liquid storage separate from the heat exchanger, and electroless nickel plating the first surface by circulating a solution comprising nickel ions through the first passage of the heat exchanger and a solution container separate from the heat exchanger. A heat exchanger comprising a nickel plating is also disclosed.
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