EP2119996B1 - Aluminum fin material for heat exchanger - Google Patents

Aluminum fin material for heat exchanger Download PDF

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Publication number
EP2119996B1
EP2119996B1 EP08711251.2A EP08711251A EP2119996B1 EP 2119996 B1 EP2119996 B1 EP 2119996B1 EP 08711251 A EP08711251 A EP 08711251A EP 2119996 B1 EP2119996 B1 EP 2119996B1
Authority
EP
European Patent Office
Prior art keywords
coating film
film layer
hydrophilic
fin material
resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08711251.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2119996A1 (en
EP2119996A4 (en
Inventor
Ota Yosuke
Shimizu Takahiro
Tateyama Keita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of EP2119996A1 publication Critical patent/EP2119996A1/en
Publication of EP2119996A4 publication Critical patent/EP2119996A4/en
Application granted granted Critical
Publication of EP2119996B1 publication Critical patent/EP2119996B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00—Removing ice or water from heat-exchange apparatus
    • F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F28F19/04—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of rubber; of plastics material; of varnish
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2245/00—Coatings; Surface treatments
    • F28F2245/02—Coatings; Surface treatments hydrophilic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2245/00—Coatings; Surface treatments
    • F28F2245/04—Coatings; Surface treatments hydrophobic

Definitions

  • a heat exchanger is utilized in various fields such as room air conditioners, package air conditioners, refrigerated display cases, refrigerators, oil coolers, and radiators.
  • room air conditioners and package air conditioners aluminum materials are used as the fin material because of excellent thermal conductivity and workability.
  • the surface of a fin material is subjected to a hydrophilic treatment for the purpose of enhancing fluidity of dew condensation water on the surface of the fin material. Furthermore, the surface of the fin material is subjected to a corrosion-resisting treatment for the purpose of preventing the occurrence of corrosion of fin material.
  • plasticizers such as diisooctyl phthalate
  • repelling materials such as lubricants for plastics (e.g. palmitic acid, stearic acid, paraffins, etc.)
  • odor materials such as acetaldehyde
  • JP3,383,914B discloses, as means for preventing adhesion of these pollutants, an aluminum fin material for a heat exchanger, in which a corrosion-resistant film made of an inorganic oxide or an organic-inorganic composite compound is formed on a substrate made of aluminum or an aluminum alloy and a hydrophilic film made of a polyacrylic acid or polyacrylate containing a water-soluble resin having a hydroxyl group in the molecule is formed thereon, and then a water-soluble resin film made of a water-soluble resin having a hydroxyl group in the molecule is formed thereon.
  • hydrophilicity of both the hydrophilic film and the water-soluble resin film is enhanced by mixing with the water-soluble resin.
  • fluidity of dew condensation water is enhanced and adhesion of pollutants is prevented.
  • it is hard to maintain hydrophilicity of both films since the water-soluble resin is dissolved in dew condensation water, and thus adhesion of pollutants could not be prevented for a long period. Adhesion of pollutants is promoted since pollutants deteriorate hydrophilicity of both films, thus causing a problem that odor emission and deterioration of hydrophilicity caused by pollutants cannot be sufficiently prevented.
  • JP 2007 040686 discloses an aluminum fin material consisting of a corrosion-resistant film, a corrosion-resistant resin film and a hydrophilic film provided in that order on a base plate of aluminum or aluminum alloy.
  • the corrosion-resistant resin film contains resin chosen from urethane resin, polyester type resin, epoxy resin and vinyl chloride-type resin, and contains zinc pyrithione.
  • the corrosion-resistant film contains inorganic oxide or organic-inorganic complex compound.
  • the film contains hydrophilic resin.
  • the present invention has been made and an object thereof is to provide a fin material for a heat exchanger, which can prevent odor emission and deterioration of hydrophilicity for a long period.
  • hydrophilicity of the aluminum fin material enhances and fluidity of dew condensation water on the surface of the aluminum fin material enhances. Consequently, if pollutants adhere on the surface of the aluminum fin material, pollutants are easily washed off (removed) with dew condensation water. Also, when the hydrophilic coating film layer is made of the hydrophilic resin having a sulfonic acid group or a sulfonic acid group derivative, polarity increases and, even if pollutants adhere thereon, pollutants are easily washed off with dew condensation water.
  • the second aspect of the invention is characterized in that the hydrophilic coating film layer is made of the hydrophilic resin containing an antibacterial agent added thereto.
  • the aluminum fin material for a heat exchanger according to the present invention includes the predetermined hydrophobic coating film layer and hydrophilic coating film layer, and thus odor is not emitted in the aluminum fin material and hydrophilicity of the aluminum fin material does not deteriorate. Also, mold and bacteria are not grown in the aluminum fin material by adding the antibacterial agent to the hydrophilic resin.
  • a fin material 1 comprises a substrate 2, a primer-treated layer 3 formed on the substrate 2, a hydrophobic coating film layer 4 formed on the primer-treated layer 3, and a hydrophilic coating film layer 5 formed on the hydrophobic coating film layer 4.
  • the expression “on the substrate 2" as used herein means one or both surfaces (not shown) of the substrate 2.
  • the primer-treated layer 3 preferably contains Cr or Zr in an amount within a range from 1 to 100 mg/m 2 .
  • the thickness of the primer-treated layer 3 is preferably from 10 to 1,000 ⁇ and may appropriately vary depending on the purposes. Adhesion between the substrate 2 and a hydrophobic coating film layer 4 described below is improved and also corrosion resistance of the fin material 1 is improved by forming the primer-treated layer 3.
  • the hydrophilic coating film layer 5 is made of a hydrophilic resin which has a sulfonic acid group or a sulfonic acid group derivative, and also has at least one kind of a carboxyl group, a carboxyl group derivative, a hydroxyl group and a hydroxyl group derivative, and the thickness is from 0.1 to 10 ⁇ m.
  • the sulfonic acid group derivative, the carboxyl group derivative and the hydroxyl group derivative include salts of monovalent metals such as sodium and potassium; salts of divalent metals such as calcium; and salts of an organic basic compound, such as ammonium salt.
  • the hydrophilic resin polymerized so as to control each existing ratio of S and O within the mentioned range is formed on the hydrophobic coating film layer 4 by a coating (coating, baking, etc.) operation described hereinafter.
  • the hydrophilic coating film layer 5 is preferably formed of a hydrophilic resin containing an organic crosslinking agent added thereto so as to improve durability of the hydrophilic coating film layer 5.
  • the hydrophilic coating film layer 5 is preferably formed of a hydrophilic resin containing a surfactant and an organic crosslinking agent added thereto so as to easily form the hydrophilic coating film layer 5 on the hydrophobic coating film layer 4 by coating.
  • the hydrophilic coating film layer 5 preferably has a surface which is as smooth as possible.
  • the surface of the hydrophilic coating film layer 5 has fine unevenness, the adsorption area of pollutants relatively increases and the amount of pollutants to be adsorbed (adhered) increases, and thus it becomes impossible to wash off pollutants with dew condensation water. Consequently, emission of odor is likely to be caused by pollutants.
  • the total mass of impurities is measured by the following procedure. First, the hydrophobic coating film layer 4 and the hydrophilic coating film layer 5 are removed from the substrate 2 (the primer-treated layer 3) using fuming nitric acid. Both coating film layers thus removed are completely burned and the residue is poured into pure water. The mass of an insoluble matter which is not dissolved in pure water is measured and is taken as the total mass of impurities.
  • a coating type zirconium treatment was carried out.
  • As a treating solution SURFCOAT ® 147/148 manufactured by NIPPON PAINT Co., Ltd. was used. At this time, the thickness of the primer-treated layer was 40 mg/m 2 in terms of Zr.
  • Fungicidal and antibacterial properties were evaluated by a test according to the glass ring method described in " Sadako YAMADA et al.: Quick Method for Antifungal Activity Test of Surface of Solid Material” (in Japanese), Antibacterial and Fungicidal Properties, Vol. 31, No. 11, PP.711-717 (2003 )".
  • a mixture of three kinds of molds such as black mold (Aspegillus niger), green mold (Penicillium chrysogenum) and black sooty mold (Cladosporium cladosporioides) was used as the mold. The results are evaluated by six grades shown in Table 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)
EP08711251.2A 2007-02-16 2008-02-14 Aluminum fin material for heat exchanger Not-in-force EP2119996B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007037167 2007-02-16
PCT/JP2008/052409 WO2008099868A1 (ja) 2007-02-16 2008-02-14 熱交換器用アルミニウムフィン材

Publications (3)

Publication Number Publication Date
EP2119996A1 EP2119996A1 (en) 2009-11-18
EP2119996A4 EP2119996A4 (en) 2012-06-06
EP2119996B1 true EP2119996B1 (en) 2016-06-29

Family

ID=39690095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08711251.2A Not-in-force EP2119996B1 (en) 2007-02-16 2008-02-14 Aluminum fin material for heat exchanger

Country Status (6)

Country Link
EP (1) EP2119996B1 (zh)
JP (1) JP2008224204A (zh)
CN (1) CN101568793B (zh)
AU (1) AU2008215475B2 (zh)
MY (1) MY147891A (zh)
WO (1) WO2008099868A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4191187A4 (en) * 2020-09-30 2024-09-11 Daikin Ind Ltd SEPARATING MEMBER FOR TOTAL HEAT EXCHANGE ELEMENTS, TOTAL HEAT EXCHANGE ELEMENT AND VENTILATION DEVICE

Families Citing this family (26)

* Cited by examiner, † Cited by third party
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JP5161746B2 (ja) * 2008-12-04 2013-03-13 株式会社神戸製鋼所 熱交換器用アルミニウムフィン材
JP2010203702A (ja) * 2009-03-04 2010-09-16 Kobe Steel Ltd 空気調和機
JP5469350B2 (ja) * 2009-03-09 2014-04-16 株式会社神戸製鋼所 アルミニウム製フィン材
JP2010223514A (ja) * 2009-03-24 2010-10-07 Kobe Steel Ltd 熱交換器用アルミニウムフィン材
JP2010223520A (ja) * 2009-03-24 2010-10-07 Kobe Steel Ltd 熱交換器用アルミニウムフィン材
WO2011037807A2 (en) * 2009-09-28 2011-03-31 Carrier Corporation Dual powder coating method and system
JP5643500B2 (ja) * 2009-10-29 2014-12-17 株式会社Uacj 熱交換器用アルミニウムフィン材
JP5060632B2 (ja) 2010-09-03 2012-10-31 株式会社神戸製鋼所 熱交換器用アルミニウム合金フィン材およびその製造方法
JP5653325B2 (ja) * 2010-09-08 2015-01-14 株式会社神戸製鋼所 アルミニウム製フィン材
JP2012076456A (ja) * 2010-09-08 2012-04-19 Kobe Steel Ltd アルミニウム製フィン材
JP5566835B2 (ja) * 2010-09-30 2014-08-06 株式会社神戸製鋼所 塗料組成物およびこれを用いたアルミニウムフィン材
JP5599763B2 (ja) * 2010-11-17 2014-10-01 株式会社神戸製鋼所 水溶性樹脂、これを用いた熱交換器用フィン材、および熱交換器
MY161709A (en) 2011-03-31 2017-05-15 Kobe Steel Ltd Combination pressable heat-exchanging aluminum alloy fin material and manufacturing method for the same
CN103459629B (zh) 2011-03-31 2016-05-18 株式会社神户制钢所 减薄拉伸冲压用换热器用铝合金翅片材及其制造方法
JP5712777B2 (ja) * 2011-05-10 2015-05-07 日本軽金属株式会社 アルミニウム又はアルミニウム合金からなる熱交換器
CN102368031A (zh) * 2011-06-28 2012-03-07 苏州方暨圆节能科技有限公司 具有薄膜的铝换热器板
JP6091758B2 (ja) 2012-02-27 2017-03-08 三菱重工業株式会社 熱交換器
JP5859895B2 (ja) * 2012-03-30 2016-02-16 株式会社神戸製鋼所 アルミニウムフィン材
WO2014034514A1 (ja) 2012-09-03 2014-03-06 三菱電機株式会社 防汚コーティング、それを備えた熱交換器及びその製造方法
WO2017163127A1 (en) * 2016-03-24 2017-09-28 The Hong Kong University Of Science And Technology Enhanced condensed water capture by alternate arrangement of heterogeneous wetting surfaces
JP2017180961A (ja) * 2016-03-30 2017-10-05 株式会社Uacj 親水性皮膜及びそれを用いた熱交換器用フィン並びに熱交換器
WO2018110644A1 (ja) * 2016-12-15 2018-06-21 三菱アルミニウム株式会社 防汚性高親水性焼付塗膜とその製造方法および熱交換器用アルミニウムフィン材と熱交換器および冷熱機器
JP6964489B2 (ja) * 2016-12-15 2021-11-10 三菱アルミニウム株式会社 防汚性高親水性焼付塗膜とその製造方法および熱交換器用アルミニウムフィン材と熱交換器および冷熱機器
JP6747488B2 (ja) * 2018-10-29 2020-08-26 ダイキン工業株式会社 熱交換器のフィンの製造方法
CN114222896B (zh) * 2019-08-20 2024-05-31 东丽株式会社 热交换元件用片材
JP7479340B2 (ja) 2021-12-06 2024-05-08 日本パーカライジング株式会社 空調機室内機用アルミニウム製フィン材およびその製造方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4191187A4 (en) * 2020-09-30 2024-09-11 Daikin Ind Ltd SEPARATING MEMBER FOR TOTAL HEAT EXCHANGE ELEMENTS, TOTAL HEAT EXCHANGE ELEMENT AND VENTILATION DEVICE

Also Published As

Publication number Publication date
CN101568793B (zh) 2012-02-15
AU2008215475A1 (en) 2008-08-21
EP2119996A1 (en) 2009-11-18
AU2008215475B2 (en) 2011-04-28
MY147891A (en) 2013-01-31
WO2008099868A1 (ja) 2008-08-21
JP2008224204A (ja) 2008-09-25
EP2119996A4 (en) 2012-06-06
CN101568793A (zh) 2009-10-28

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