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Aluminum Fin Material

A technology of fins and plates, which is applied in the coating process of metal materials, lighting and heating equipment, tubular elements, etc., can solve the problems of condensed water scattering and heat exchange function reduction of heat exchangers, etc.

Inactive Publication Date: 2016-11-16
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the fins are clogged by condensed water in this way, it is known that the heat exchange function of the heat exchanger is further reduced and that condensed water is scattered to the outside of the air conditioner due to the wind pressure of the blower fan.

Method used

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  • Aluminum Fin Material
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0100] Next, about the aluminum fin material of this invention, the Example which satisfied the requirement of this invention and the comparative example which did not satisfy the requirement of this invention are demonstrated concretely.

[0101] An alloy of alloy number 1200 (sheet thickness: 0.1 mm) specified in JIS H 4000:2006 was used as the sheet material.

[0102] Phosphate chromate treatment for forming a base treatment layer was performed on one side of the aluminum plate. As the chemical conversion treatment solution, ALUSURF (registered trademark) 401 / 45, phosphoric acid, and chromic acid manufactured by Nippon Paint Co., Ltd. were used. Let the film thickness of the base treatment layer at this time be (The conversion value of Cr measured by X-ray fluorescence method is 20mg / m 2 ). Then, the coating material for the corrosion-resistant film layer shown in Table 1 was applied to the aluminum plate treated with phosphoric acid chromate or the aluminum plate witho...

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PUM

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Abstract

This aluminum fin material is provided with a substrate treatment layer comprising an inorganic oxide or an inorganic-organic composite compound, a corrosion-resistant film layer and a hydrophilic film layer in that order on a surface of a sheet comprising aluminum or an aluminum alloy, wherein the corrosion-resistant film layer comprises a resin composition containing a corrosion-resistant resin comprising a resin having an acrylic resin structure, and the hydrophilic film layer comprises a resin composition containing at least one among a monomer having at least one functional group selected from among sulfonic acid groups and alkali metal sulfonate groups, a polymer consisting of the aforementioned monomer and a copolymer containing the aforementioned monomer; the contact angle with water is 30o or less immediately after the hydrophilic film layer is formed; and the areal proportion of the hydrophilic film layer is 5% or less. The hydrophilicity of the surface of this aluminum fin material is maintained for a long time.

Description

technical field [0001] The present invention relates to an aluminum fin material used for heat exchangers and the like. Background technique [0002] Due to recent global warming and rising resource prices, etc., there has been an increasing demand for performance improvements such as high efficiency and miniaturization of air conditioners. In heat exchangers of air conditioners reflecting such demands, fins formed of aluminum plates (including aluminum alloy plates) excellent in thermal conductivity, workability, corrosion resistance, etc. are widely used. It should be noted that, in order to reduce the volume of the heat exchanger of the air conditioner, the fins are arranged in parallel at narrow intervals. [0003] When the temperature of the fin surface is below the dew point of the air during the operation of the air conditioner, condensed water condenses and adheres to the fin surface, reducing the heat exchange function of the heat exchanger. In addition, at this t...

Claims

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Application Information

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IPC IPC(8): C23C26/00F28F1/32F28F13/18
CPCC09D5/08C09D5/14C23C22/83F28F13/18F28F19/04F28F19/06F28F21/084F28F21/089F28F2245/02
Inventor 丰田祐介服部伸郎馆山庆太
Owner KOBE STEEL LTD