JPS62186199A - Material of fin made of aluminum of aluminum alloy - Google Patents
Material of fin made of aluminum of aluminum alloyInfo
- Publication number
- JPS62186199A JPS62186199A JP2747586A JP2747586A JPS62186199A JP S62186199 A JPS62186199 A JP S62186199A JP 2747586 A JP2747586 A JP 2747586A JP 2747586 A JP2747586 A JP 2747586A JP S62186199 A JPS62186199 A JP S62186199A
- Authority
- JP
- Japan
- Prior art keywords
- fin
- property
- aluminum
- series
- hydrophilic
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 28
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 13
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract description 7
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims description 23
- 239000011248 coating agent Substances 0.000 claims description 16
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 abstract description 15
- 239000011347 resin Substances 0.000 abstract description 15
- 238000004132 cross linking Methods 0.000 abstract description 13
- 238000000465 moulding Methods 0.000 abstract description 7
- 238000005238 degreasing Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 229920000642 polymer Polymers 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract description 2
- 150000002148 esters Chemical class 0.000 abstract 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 description 16
- 230000007797 corrosion Effects 0.000 description 16
- 238000012360 testing method Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 239000010408 film Substances 0.000 description 10
- 239000000178 monomer Substances 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 6
- 229920000620 organic polymer Polymers 0.000 description 5
- 239000002952 polymeric resin Substances 0.000 description 5
- 125000000524 functional group Chemical group 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 3
- -1 acrylic ester Chemical class 0.000 description 3
- 150000001875 compounds Chemical group 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 2
- 229910001593 boehmite Inorganic materials 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- JHPBZFOKBAGZBL-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylprop-2-enoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)=C JHPBZFOKBAGZBL-UHFFFAOYSA-N 0.000 description 1
- 125000004849 alkoxymethyl group Chemical group 0.000 description 1
- 125000004202 aminomethyl group Chemical group [H]N([H])C([H])([H])* 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 150000007934 α,β-unsaturated carboxylic acids Chemical class 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はＡｌ又はＡｌ合金製（以下、単にＡｌ製と言う
こともある）フィン材に関し、詳細にはＡｌ製ラフイン
表面ｄ親水性や加工性の優れた有機被膜を形成したＡｌ
製フィン材に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fin material made of Al or an Al alloy (hereinafter also simply referred to as "made of Al"), and in particular, the rough-in surface of the Al made of hydrophilicity and processing. Al that forms an organic film with excellent properties
This relates to fin materials.
［従来の技術］
一般に、熱交換器特に空気調和機の蒸発器においては、
フィンの表面温度が大気の露点以下となる為、該フィン
の表面に水滴が付着する。この様な水滴の付着は、熱交
換器における通風抵抗を増大させて通風量を減少させる
ので、熱交換器の熱交換効率の低下を招く原因になる。[Prior Art] Generally, in a heat exchanger, especially an evaporator of an air conditioner,
Since the surface temperature of the fin is below the dew point of the atmosphere, water droplets adhere to the surface of the fin. Such adhesion of water droplets increases the ventilation resistance in the heat exchanger and reduces the amount of ventilation, which causes a decrease in the heat exchange efficiency of the heat exchanger.
この様な不都合は、熱交換器の性能向上及び小型化を図
ってフィンピッチを狭くした場合において特に顕著に現
われる。Such inconveniences become particularly noticeable when the fin pitch is narrowed in order to improve the performance and downsize the heat exchanger.
即ち熱交換効率はフィン表面の濡れ性に大きく影響を受
けるものであり、フィン表面の濡れ性が良いと付着した
水が水滴となり難くなり、前述の理由によって熱交換効
率が増大する。従って良好な熱交換効率を維持する為に
は、フィン表面の濡れ性（親水性）を良好な状態とし、
フィン表面に水滴が付着しない様にすることが必要であ
る。−万態交換器のフィン材としては加工性や経済性等
を考慮してＡｌ板が汎用されている。そしてＡｌ板表面
は元来濡れ性が良好であるが、Ａｌ板表面には腐食防止
の為に親水性被膜が形成されている。That is, the heat exchange efficiency is greatly influenced by the wettability of the fin surface, and if the fin surface has good wettability, attached water becomes less likely to form droplets, and the heat exchange efficiency increases for the above-mentioned reason. Therefore, in order to maintain good heat exchange efficiency, the wettability (hydrophilicity) of the fin surface should be kept in good condition.
It is necessary to prevent water droplets from adhering to the fin surface. - Al plates are commonly used as the fin material for universal exchangers in consideration of workability, economy, etc. Although the Al plate surface originally has good wettability, a hydrophilic coating is formed on the Al plate surface to prevent corrosion.
［発明が解決しようとする問題点］
上記の様な事情のもとで、Ａｌ製フィン表面に濡れ性の
良好な親木性被膜を形成する為に色々な技術が提案され
ている。例えばフィンとチューブを組み合わせて熱交換
器を構成した後に、これを溶液中に浸漬することによっ
て表面処理を施し、フィンの表面に水濡れ性の良い親水
性被膜を形成するという方法が提案されている。しかし
ながら、熱交換器に組み立てた後に表面処理を行なうと
いう上記技術であると、作業が非常に面倒なものとなる
と共に、非能率的であり、更に複雑な形状の場合には性
能にばらつきが生じるという問題があった。[Problems to be Solved by the Invention] Under the circumstances described above, various techniques have been proposed for forming a wood-loving film with good wettability on the surface of an Al fin. For example, a method has been proposed in which a heat exchanger is constructed by combining fins and tubes, and then surface treatment is performed by immersing the heat exchanger in a solution to form a hydrophilic film with good water wettability on the surface of the fins. There is. However, the above-mentioned technique of performing surface treatment after assembling the heat exchanger is extremely laborious and inefficient, and furthermore, in the case of complex shapes, performance may vary. There was a problem.
一方、熱交換器に組み立てる前の状態、即ちフィンの素
材であるコイル状Ａｌ薄板の段階で該薄板の表面に耐食
性被膜を形成し、この耐食性被膜の表面の水濡れ性を良
くする為に表面に水ガラス（アルカリ珪酸塩）、ベーマ
イト被膜、アルカリ珪酸塩等に有機化合物を混合した親
水性被膜等を形成する方法が提案されている。しかしな
がら水ガラス及びベーマイト被膜の様な無機質被膜は硬
質であるため、当該被膜を形成した素材をフィンに成形
する時のバーリング加工の際に、フィン屈曲部からクラ
ックが生じるという問題、或は又金型が摩耗し易いとい
う問題があった。また上記の様なりラックは使用中の寒
冷刺激等によって更に拡張されるという傾向があるから
、使用期間が長くなるにつれて親水性が減少していくと
いう問題もあった。更に、無機化合物の代りに有機化合
物を主体とした被膜も検討されたが、熱交換器として組
み立てた後に行なう脱脂工程において溶出し親水性が劣
化するどいフた別の問題が生じた。On the other hand, a corrosion-resistant coating is formed on the surface of the coiled aluminum thin plate that is the material of the fins before it is assembled into a heat exchanger, and a corrosion-resistant coating is formed on the surface of the coiled aluminum thin plate to improve water wettability on the surface of this corrosion-resistant coating. Methods have been proposed for forming hydrophilic films such as water glass (alkali silicate), boehmite film, and alkali silicate mixed with an organic compound. However, since inorganic coatings such as water glass and boehmite coatings are hard, there are problems such as cracks occurring at the bends of the fins during burring when the material on which the coatings are formed is formed into fins. There was a problem that the mold was easily worn out. Furthermore, as described above, the rack tends to expand further due to cold stimulation during use, so there is also the problem that the hydrophilicity decreases as the period of use increases. Furthermore, coatings based on organic compounds instead of inorganic compounds have been considered, but another problem arose in that the coatings would elute and deteriorate in hydrophilicity during the degreasing process that is carried out after assembly as a heat exchanger.
本発明は上記問題点を解決する為になされたものであっ
て、その目的とするところは、優れた親水性、耐食性、
耐脱脂性及び成形性を有し、しかも成形時のクラックや
金型の摩耗が非常に少ないＡｌ製フィン材を提供しよう
とするものである。The present invention has been made to solve the above problems, and its objectives are to provide excellent hydrophilicity, corrosion resistance,
The object of the present invention is to provide an Al fin material that has degreasing resistance and moldability, and has very little cracking and mold wear during molding.
［問題点を解決する為の手段］
上記問題点を解決し得た本発明の構成とは、Ａｌ又はＡ
ｌ合金製フィンの表面にポリアクリルアマイド系又はポ
リメタクリルアマイド系のポリマー或はこれらが更に架
橋されたものを親水性有機被膜として形成してなる点に
要旨を有するものである。[Means for solving the problems] The structure of the present invention that can solve the above problems is that Al or A
The gist is that a polyacrylamide-based or polymethacrylamide-based polymer, or a crosslinked product thereof, is formed as a hydrophilic organic coating on the surface of an L-alloy fin.
［作用］
本発明は上述の如く構成されるが、要はＡｌ性ラフイン
Ａｌ合金製フィンも含む、以下同じ）の表面に素材段階
、即ちフィンとして加工する前に親水性有機被膜を形成
することによって親木性、耐食性及び成形性に優れたＡ
ｌ製フィン材を実現し得たものである。ここで用いられ
るＡｌ製フィンの素材は、所要長さを有する平板状態の
ものであっても良いが、生産性等を考慮するとコイル状
に巻回された長尺物を用いて連続的に処理及び加工する
のが好適である。[Function] The present invention is configured as described above, but the key point is to form a hydrophilic organic film on the surface of the material (including rough-in Al alloy fins (the same applies hereinafter)) at the material stage, that is, before processing into fins. A with excellent wood affinity, corrosion resistance, and moldability
This made it possible to realize a fin material made of aluminum. The Al fin material used here may be in the form of a flat plate with the required length, but in consideration of productivity etc., it is continuously processed using a long material wound into a coil shape. and processing is suitable.
Ａｌ製フィンの表面に形成される親水性有機被膜は有機
高分子樹脂よりなるものである。ここで用いられる有機
高分子樹脂は、ポリアクリドアマイト系又はポリメタア
クリルアマイド系であり（以下、ポリアクリドアマイト
系で代表する）、アクリルアマイド及び／又はメタアク
リルアマイドを主要な構成５分として含有する水溶性或
は水分散性のビニル系重合体を総括したものである。The hydrophilic organic coating formed on the surface of the Al fin is made of organic polymer resin. The organic polymer resin used here is polyacrylamite-based or polymethacrylamide-based (hereinafter referred to as polyacrylamite-based), and acrylamide and/or methacrylamide are the main constituents. This is a general summary of water-soluble or water-dispersible vinyl polymers contained in
かかるポリアクリルアマイド系樹脂の具体例としては、
ポリアクリルアマイド、ポリメタアクリルアマイド等の
単独重合体やアクリルアマイド−メタアクリルアマイド
共重合体及びそれらの混合物又はそれらの変性物の他、
アクリルアマイド又はメタアクリルアマイドと他の共重
合性単量体との共重合体及びその変性物等を挙げること
ができる。アクリルアマイド（又はメタアクリルアマイ
ド）と共重合することのできる単量体としては、芳香族
系ビニル単量体、アクリル酸エステル系単量体（又はメ
タアクリル酸エステル系Ｊ＃量体）、α、β−不飽和カ
ルボン酸、ビニルエステル系車量体、アリル化合物等を
挙げることができるが、重合性２重結合をもつ他の単量
体であってもよい。Specific examples of such polyacrylamide resins include:
In addition to homopolymers such as polyacrylamide and polymethacrylamide, acrylamide-methacrylamide copolymers, mixtures thereof, and modified products thereof,
Examples include copolymers of acrylamide or methacrylamide and other copolymerizable monomers and modified products thereof. Monomers that can be copolymerized with acrylamide (or methacrylamide) include aromatic vinyl monomers, acrylic ester monomers (or methacrylic ester J#mers), α , β-unsaturated carboxylic acid, vinyl ester caramer, allyl compound, etc., but other monomers having a polymerizable double bond may also be used.
ポリアクリルアマイド系樹脂としては平均分子量が概ね
１万〜２００万のものを用いるのが好ましく、更に好ま
しくは平均分子量が５万〜１００万のものが用いられる
。又該樹脂の構成単量体に対して５〜８０モル％の架橋
基を有するポリアクリルアマイド系樹脂を用いるのが好
ましい。ポリアクリルアマイド系樹脂の分子量が１万未
満であると、架橋構造を付加しても耐水性が劣り水に濡
れると被膜が溶解脱落し、一方分子量が２００万を超え
ると樹脂の粘度が大きくなり過ぎ樹脂の製造上又は塗装
作業上の問題が生じ、更に取り扱いも困難になる。一方
ポリアクリルアマイド系樹脂に架橋基を導入するのは、
親木性有機被膜の耐水性を更に向上させる為である。本
発明は基本的にはＡｌ製ラフイン表面にポリアクリルア
マイド系の親水性有機被膜を形成することによって、親
水性、耐食性及び成形性に優れた熱交換器用フィン材を
得ようとするものであり、それだけでも十分な耐食性を
得られるものであるが、架橋基を導入することによって
耐食性を更に向上させることができるものである。即ち
架橋基をポリアクリルアマイド系樹脂に導入することに
よって、線状高分子化合物の分子相互が三次元の網状構
造高分子化合物を形成し、その結果として耐食性が更に
向上するものである。しかして導入される架橋基が５モ
ル％未満では架橋基を導入しただけの効果が得られず、
８０モル％を超えると逆に親水性官能基の量が少なくな
り、有機被膜の親水性が劣化する。As the polyacrylamide resin, one having an average molecular weight of approximately 10,000 to 2,000,000 is preferably used, and more preferably one having an average molecular weight of 50,000 to 1,000,000 is used. Further, it is preferable to use a polyacrylamide resin having 5 to 80 mol % of crosslinking groups based on the constituent monomers of the resin. If the molecular weight of the polyacrylamide resin is less than 10,000, the water resistance will be poor even if a crosslinked structure is added, and the film will dissolve and fall off when it gets wet with water. On the other hand, if the molecular weight exceeds 2 million, the viscosity of the resin will increase. Problems arise in manufacturing or painting the resin, and it also becomes difficult to handle. On the other hand, introducing a crosslinking group into polyacrylamide resin is
This is to further improve the water resistance of the wood-philic organic coating. The present invention basically aims to obtain a fin material for a heat exchanger that has excellent hydrophilicity, corrosion resistance, and formability by forming a polyacrylamide-based hydrophilic organic film on the surface of an Al rough-in. Although it is possible to obtain sufficient corrosion resistance by itself, the corrosion resistance can be further improved by introducing a crosslinking group. That is, by introducing a crosslinking group into the polyacrylamide resin, the molecules of the linear polymer compound form a three-dimensional network structure polymer compound, and as a result, the corrosion resistance is further improved. However, if the amount of crosslinking groups introduced is less than 5 mol%, the effect of introducing the crosslinking groups will not be obtained.
If it exceeds 80 mol%, the amount of hydrophilic functional groups decreases, and the hydrophilicity of the organic coating deteriorates.
ポリアクリルアマイド系樹脂中への架橋基の導入は、公
知の変性方法により或は架橋性官能基を有する単量体の
共重合により行なうことができる。かかる架橋基の具体
例としてはメチロール基、グリシシン基、アミノメチル
基及びアルコキシメチル基等を挙げることができる。又
ポリアクリルアマイド系樹脂中にカルボキシル基やアミ
ノ基或は水酸基等の官能基を導入し、これらの官能基と
反応性を有する多官能性化合物を架橋剤として配合した
架橋性組成物を用いることもできる。The crosslinking group can be introduced into the polyacrylamide resin by a known modification method or by copolymerization of a monomer having a crosslinkable functional group. Specific examples of such crosslinking groups include a methylol group, a glycicin group, an aminomethyl group, and an alkoxymethyl group. Alternatively, a crosslinkable composition may be used in which functional groups such as carboxyl, amino, or hydroxyl groups are introduced into a polyacrylamide resin, and a polyfunctional compound that is reactive with these functional groups is blended as a crosslinking agent. You can also do it.
上述した様な有機高分子樹脂よりなる被膜の厚みは、例
えば０．５〜１０μｍ程度であるのが好ましい。即ち被
膜の厚みが０．５μｍよりも薄い場合には樹脂被膜を形
成しただけの効果が少なく耐食性に問題が生じ、逆に厚
みが１０μｍよりも厚い場合にはＡｌ製ラフイン熱伝導
が阻害されると共に成形性も悪くなる。The thickness of the coating made of the organic polymer resin as described above is preferably about 0.5 to 10 μm, for example. That is, if the thickness of the coating is thinner than 0.5 μm, the effect of forming a resin coating will be less and a problem will arise in corrosion resistance, and if the thickness is thicker than 10 μm, the heat conduction of the Al rough-in will be inhibited. At the same time, moldability also deteriorates.
本発明におけるＡｌ製フィン材は、Ａｌ板の表面に有機
高分子樹脂よりなる耐食性、耐脱脂性。The Al fin material in the present invention is made of an organic polymer resin on the surface of the Al plate and has corrosion resistance and degreasing resistance.
成形性等の優れた親水性被膜が形成されてなるものであ
り、当該被膜は従来用いられていた無機質被膜より軟買
であるので所謂延性が良好であり、フィンの成形の際の
屈曲部にクラックが生じたりすることはなく、成形性が
優れている。しかも成形時における金型の摩耗も非常に
少ない。更に樹脂の高分子化を進め、又架橋反応を付加
することによって、脱脂時の溶出の防止及び脱脂後の親
水性の保持を図ることも可能である。It is formed by forming a hydrophilic coating with excellent moldability, etc. This coating is softer than conventionally used inorganic coatings, so it has good so-called ductility, and is suitable for bending parts when forming fins. No cracks occur and the moldability is excellent. Furthermore, there is very little wear on the mold during molding. Furthermore, by increasing the polymerization of the resin and adding a crosslinking reaction, it is possible to prevent elution during degreasing and maintain hydrophilicity after degreasing.
本発明に係るＡｌ製フィン材においては、フィンに付着
した水滴はその形状を即座に崩してフィン表面に膜状と
なって広がり、流下してほとんど除去される。又表面張
力によってフィンに残存した水分が存在しても薄い膜状
となる為、通風を防げる原因とはならない。従フて本発
明に係るＡｔ製フィン材を用いて熱交換器を構成すると
、水滴付着によって通風抵抗が増大する様な事はなく、
熱交換器の熱交換効率を良好に維持することができる。In the Al fin material according to the present invention, water droplets attached to the fins immediately lose their shape, spread as a film on the fin surface, flow down, and are almost completely removed. Furthermore, even if water remains on the fins due to surface tension, it forms a thin film and does not prevent ventilation. Therefore, if a heat exchanger is constructed using the At fin material according to the present invention, there will be no increase in ventilation resistance due to adhesion of water droplets.
It is possible to maintain good heat exchange efficiency of the heat exchanger.
本発明に係るＡｌ製フィン材は、カークーラ及びルー、
ムクーラの蒸発器或はその他の熱交換器等へ広範囲に適
用できる。The Al fin material according to the present invention can be used for car coolers, roofs,
It can be widely applied to Mukura evaporators or other heat exchangers.
［実施例］
実施例Ｉ
Ａｌ板として０．１ｔｘ １００’ｘ １５０ ’ ｍ
ｍのＪＩＳＡ−１１００）１２０４を用い、該Ａｌ板に
有機高分子樹脂よりなる各種の親水性有機被膜を形成し
たＮｏ、 １〜４の試験片を得た。得られた試験片Ｎ
ｏ、 １〜４について各種性能評価試験を行ない、本
発明に係るＡｌ製フィン材の有用性を調査した。その結
果を下記第１表に示す。第１表中には、比較例を試験片
Ｎ０１５〜７として示し、その性能評価試験結果をも併
記した。[Example] Example I 0.1tx 100'x 150'm as an Al plate
Test pieces Nos. 1 to 4 were obtained by forming various hydrophilic organic coatings made of an organic polymer resin on the Al plate using JISA-1100) 1204. Obtained test piece N
Various performance evaluation tests were conducted for Nos. 1 to 4 to investigate the usefulness of the Al fin material according to the present invention. The results are shown in Table 1 below. In Table 1, comparative examples are shown as test pieces Nos. 015 to 7, and their performance evaluation test results are also listed.
尚第１表中において、性能評価の各項目の基準は下記の
如くである。In Table 1, the criteria for each item of performance evaluation are as follows.
（１）親木性は、フィンの水濡れ性を測ることにより評
価した。(1) Wood affinity was evaluated by measuring the water wettability of the fins.
（２）耐食性は、塩水噴震試験１０日後におけるフィン
の表面状態を観察することにより評価した。(2) Corrosion resistance was evaluated by observing the surface condition of the fins 10 days after the salt water jet test.
（３）成形性は、フィン材にバーリング加工を施したと
きその屈曲部にクラックを生じるか否かで判定した。(3) Formability was determined by whether or not cracks were generated at the bent portions when the fin material was subjected to burring.
（４）金型摩耗性は、金型を用いて一定形状のフィンに
成形する際、所定枚数のフィンを成形したときの金型の
摩耗状態を観察することにより評価した。(4) Mold abrasion resistance was evaluated by observing the state of wear of the mold when a predetermined number of fins were molded using a mold.
前記第１表の結果から明らかな様に、本発明のＡｌ製フ
ィン材（試験片Ｎｏ、 １〜４）は従来のフィン（試
験片Ｎｏ、 ５〜７）と比べて非常に優れた成形性及び
金型摩耗性を有し、親水性及び耐食性においても申し分
ないものである。As is clear from the results in Table 1 above, the Al fin materials of the present invention (test specimens Nos. 1 to 4) have extremely superior formability compared to conventional fins (test specimens Nos. 5 to 7). and mold abrasion resistance, and also has satisfactory hydrophilicity and corrosion resistance.
実施例２
前記実施例１と同じＡｌ板を用い、該Ａｌ板の表面にポ
リアクリルアマイド系樹脂の分子量、架橋基の量及び膜
厚を種々変化させた親水性有機被膜を形成した試験片Ｎ
０１８〜１８を得た。得られた各試験片Ｎ０１８〜１８
について各種性能評価試験を行ない、本発明に係るＡｌ
製フィン材の有用性を調査した。その結果を下記第２表
に示す。Example 2 Test piece N in which the same Al plate as in Example 1 was used, and a hydrophilic organic coating was formed on the surface of the Al plate with various changes in the molecular weight of the polyacrylamide resin, the amount of crosslinking groups, and the film thickness.
018-18 was obtained. Each obtained test piece N018-18
Various performance evaluation tests were conducted on the Al
We investigated the usefulness of fin materials. The results are shown in Table 2 below.
尚第２表中において、本発明における好ましい分子量及
び架橋基の量の試験片Ｎｏ、 ８〜１３を実施例として
示し、それ以外の試験片Ｎｏ、１４〜１８を参考例とし
て示した。又性能評価試験における各項目の評価基準は
実施例１と同様である。In Table 2, test pieces Nos. 8 to 13 having preferred molecular weights and amounts of crosslinking groups in the present invention are shown as examples, and other test pieces Nos. 14 to 18 are shown as reference examples. Furthermore, the evaluation criteria for each item in the performance evaluation test were the same as in Example 1.
上記第２表から明らかな様に、分子量及び架橋基の導入
量を所定量にすることによって、得られるＡｌ製フィン
材の親水性、脱脂性及び耐食性を更に向上させることが
できる。As is clear from Table 2 above, by adjusting the molecular weight and the amount of crosslinking groups introduced to predetermined values, it is possible to further improve the hydrophilicity, degreasability, and corrosion resistance of the resulting Al fin material.
［発明の効果］
以上述べた如く本発明によれば、既述の構成を採用する
ことによって、優れた親水性、耐食性。[Effects of the Invention] As described above, according to the present invention, excellent hydrophilicity and corrosion resistance can be achieved by employing the above-described configuration.
及び成形性を有し、しかも成形時の金型の摩耗が非常に
少ないＡｌ又はＡｌ合金製フィン材が実現でき、従来の
問題点を一挙に解決し得たものである。It is possible to realize a fin material made of Al or Al alloy that has excellent moldability and very little wear on the mold during molding, thereby solving the problems of the conventional technology at once.
Claims (2)
ルアマイド系又はポリメタアクリルアマイド系の親水性
有機被膜を形成してなることを特徴とするＡｌ又はＡｌ
合金製フィン材。(1) Al or Al characterized by forming a polyacrylamide-based or polymethacrylamide-based hydrophilic organic coating on the surface of an Al or Al alloy fin.
Alloy fin material.
ポリアクリルアマイド系又は架橋されたポリメタアクリ
ルアマイド系の親水性有機被膜を形成してなることを特
徴とするＡｌ又はＡｌ合金製フィン材。(2) A fin made of Al or Al alloy, characterized in that a hydrophilic organic coating of crosslinked polyacrylamide or crosslinked polymethacrylamide is formed on the surface of the fin made of Al or Al alloy. Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2747586A JPS62186199A (en) | 1986-02-10 | 1986-02-10 | Material of fin made of aluminum of aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2747586A JPS62186199A (en) | 1986-02-10 | 1986-02-10 | Material of fin made of aluminum of aluminum alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62186199A true JPS62186199A (en) | 1987-08-14 |
Family
ID=12222139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2747586A Pending JPS62186199A (en) | 1986-02-10 | 1986-02-10 | Material of fin made of aluminum of aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62186199A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5350791A (en) * | 1992-07-02 | 1994-09-27 | Henkel Corporation | Hydrophilicizing treatment for metal objects |
| JP2013180496A (en) * | 2012-03-01 | 2013-09-12 | Furukawa-Sky Aluminum Corp | Aluminum coating material and precoated aluminum fin member using the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59118450A (en) * | 1982-12-24 | 1984-07-09 | 大同化学工業株式会社 | Fin material made of aluminum for heat exchanger |
-
1986
- 1986-02-10 JP JP2747586A patent/JPS62186199A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59118450A (en) * | 1982-12-24 | 1984-07-09 | 大同化学工業株式会社 | Fin material made of aluminum for heat exchanger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5350791A (en) * | 1992-07-02 | 1994-09-27 | Henkel Corporation | Hydrophilicizing treatment for metal objects |
| JP2013180496A (en) * | 2012-03-01 | 2013-09-12 | Furukawa-Sky Aluminum Corp | Aluminum coating material and precoated aluminum fin member using the same |
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