SURFACE TREATMENT METHOD FOR HEAT EXCHANGER

Japanese Patent JP2015124390

A

PROBLEM TO BE SOLVED: To provide a heat exchanger surface treatment method capable of suppressing the adsorption of odorous components sufficiently.SOLUTION: A heat exchanger surface treatment method comprises: a chemical conversion coating step (1) of drying a heat exchanger made of an aluminum material by a noncorrosive flux brazing after being brought into contact with a zirconium chemical conversion coating agent; an anti-odor treatment step (2) of bringing an anti-odor treatment agent into contact with said heat exchanger after said chemical conversion coating step, and then drying the anti-odor treatment agent to form an anti-odor layer; and a hydrophilic water treatment step (3) of drying a hydrophilic treatment agent after the hydrophilic treatment agent is made to contact with said heat exchanger after said anti-odor treatment step.

WO/2004/035861	PICKLING OR BRIGHTENING/PASSIVATING SOLUTION AND PROCESS FOR STEEL AND STAINLESS STEEL
WO/2011/106304	CHROMIUM -FREE PASSIVATION PROCESS OF VAPOR DEPOSITED ALUMINUM SURFACES
JP2002146549	METHOD FOR PRODUCING FIN MATERIAL MADE OF ALUMINUM AND FIN MATERIAL MADE OF ALUMINUM PRODUCED BY THE METHOD

SAKATA YOSUKE
TAKAHASHI KEIGO
MATSUMOTO SATOSHI

JP2013267061A

July 06, 2015

December 25, 2013

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NIPPON PAINT CO LTD
KEIHIN THERMAL TECHNOLOGY CORP

C23C22/34; B05D7/14; B60H1/32; F28F1/32; F28F13/18

Masayuki Masabayashi
Hayashi Ichiyoshi

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