Title:
アルミニウム材製熱交換器の耐食処理方法
Document Type and Number:
Japanese Patent JP5794512
Kind Code:
B2
Abstract:
Disclosed is an anti-corrosion treatment method for a heat exchanger, in which even if an aluminum material-made heat exchanger having been flux-brazed by the NB process, in particular, an aluminum material-made heat exchanger to be used for automobile air conditioner is not subjected to a chemical conversion treatment in advance, not only corrosion resistance can be significantly enhanced without impairing hydrophilicity, but deodorizing properties can be enhanced. The anti-corrosion treatment method for an aluminum material-made heat exchanger includes bringing an aluminum material-made heat exchanger having been flux-brazed by the Nocolok brazing process into contact with a hydrophilic treatment liquid and then applying a baking treatment, thereby forming a hydrophilic film on the surface of the aluminum material-made heat exchanger, wherein the hydrophilic treatment liquid contains a hydrophilic resin and a lithium ion, and a lithium concentration in the hydrophilic film is from 0.05 to 25 % by mass.
Inventors:
Tokuzumi Matsui
Hiroko Okamura
Hiroko Okamura
Application Number:
JP2010232824A
Publication Date:
October 14, 2015
Filing Date:
October 15, 2010
Export Citation:
Assignee:
Nippon Paint Surf Chemicals Co., Ltd.
International Classes:
B05D7/14; B05D7/24; C23C22/00; C23C26/00; F28F13/18; F28F19/04
Domestic Patent References:
| JP200669197A | ||||
| JP5202313A | ||||
| JP2001164175A | ||||
| JP719776A | ||||
| JP6300482A | ||||
| JP2001141389A | ||||
| JP2004339539A | ||||
| JP201132309A | ||||
| JP748682A | ||||
| JP8267229A |
Attorney, Agent or Firm:
Tamotsu Otani
Mitsuo Tanaka
Mitsuo Tanaka
Previous Patent: オートタキシン測定による膵疾患の検査方法および検査薬
Next Patent: METHOD FOR CONSTRUCTING FURNACE BOTTOM OF CONVERTER
Next Patent: METHOD FOR CONSTRUCTING FURNACE BOTTOM OF CONVERTER