JPS63170492A - Processing of al fin material for heat exchanger - Google Patents
Processing of al fin material for heat exchangerInfo
- Publication number
- JPS63170492A JPS63170492A JP117387A JP117387A JPS63170492A JP S63170492 A JPS63170492 A JP S63170492A JP 117387 A JP117387 A JP 117387A JP 117387 A JP117387 A JP 117387A JP S63170492 A JPS63170492 A JP S63170492A
- Authority
- JP
- Japan
- Prior art keywords
- water
- fin material
- lubricant
- soluble resin
- fin
- 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 31
- 238000012545 processing Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000000314 lubricant Substances 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 11
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 10
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 10
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000008117 stearic acid Substances 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 229920006322 acrylamide copolymer Polymers 0.000 claims abstract description 5
- RNIHAPSVIGPAFF-UHFFFAOYSA-N Acrylamide-acrylic acid resin Chemical compound NC(=O)C=C.OC(=O)C=C RNIHAPSVIGPAFF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000003672 processing method Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 239000002335 surface treatment layer Substances 0.000 abstract description 10
- 239000011247 coating layer Substances 0.000 abstract 1
- 238000005238 degreasing Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 239000003960 organic solvent Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010409 ironing Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000012756 surface treatment agent Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
Description
【発明の詳細な説明】
（技術分野）
本発明は、熱交換器用Ａｌフィン材の加工方法に係り、
特に熱交換器用の親水性のＡ１フィン部品を製造するた
めのプレス加工時におけるオイリング（プレス油の塗布
）を実質的に不要と為し得る加工方法に関するものであ
る。Detailed Description of the Invention (Technical Field) The present invention relates to a method of processing an Al fin material for a heat exchanger,
In particular, the present invention relates to a processing method that can substantially eliminate the need for oiling (application of press oil) during press processing for manufacturing hydrophilic A1 fin parts for heat exchangers.
（従来技術とその問題点）
従来から、自動車用エアコン、家庭用エアコン等の空調
用機器や冷蔵庫等の熱交換器の熱交換部には、アルミニ
ウム（／ｌり若しくはその合金製のフィンが用いられて
いるが、そのようなＡｆｆフィンは、通常、プレス加工
手法によって、フィン形成用のＡ１３板素材を目的形状
のフィンに成形加工して、そしてそれをチューブと組み
合わせ、フィンコアとして組立てて、目的とする熱交換
器としているのである。(Prior art and its problems) Traditionally, fins made of aluminum or its alloy have been used in the heat exchange parts of air conditioning equipment such as automobile air conditioners and home air conditioners, and heat exchangers such as refrigerators. However, such Aff fins are usually made by molding an A13 plate material for fin formation into a fin of the desired shape using a press processing method, and then combining it with a tube and assembling it as a fin core. It is used as a heat exchanger.
一方、特開昭５３−１２５４３７号公報や特公昭５７−
４６０００号公報等に明らかにされているように、かか
るＡ１フィンには、冷房時における′Ｄ縮水等の付着に
よって通風抵抗が著しく増大して、熱交換効率が低下す
るのを避けるために、親水性表面を有しているものであ
ることが要請され、このために、そのような親水性表面
を得るべく、かかるＡｌフィンの表面に各種の親水性塗
膜を形成する手法が提案されてきている。On the other hand, Japanese Patent Application Publication No. 125437/1983 and
As disclosed in Japanese Patent No. 46000, etc., the A1 fins are made with hydrophilic material in order to avoid a significant increase in ventilation resistance due to the adhesion of condensed water during cooling and a decrease in heat exchange efficiency. Therefore, in order to obtain such a hydrophilic surface, methods of forming various hydrophilic coatings on the surface of such Al fins have been proposed. There is.
ところで、このような親水性塗膜の形成された表面を有
する熱交換器用の親木性Ａｌフィン材の加工工程におい
ては、所定の親水性塗膜が形成された薄板状のＡ１フィ
ン素材に対するプレス加工に先立って、かかる／ｌフィ
ン素材には、プレス加工時の潤滑のためにオイリングが
施され、そしてそのようなオイリングによって表面にプ
レス油が塗布された素材がプレス加工された後、所定の
チューブと組み合わせられて組み付けられ（拡管組立）
、目的とする熱交換器のフィンコアとされた後、フィン
表面に付着するプレス油を除去するために、脱脂処理（
トリクレン等の有機溶媒による洗浄）が実施され、そし
て製品検査に回されている。By the way, in the processing process of a wood-loving Al fin material for a heat exchanger having a surface on which a hydrophilic coating film is formed, a press is applied to a thin plate-shaped A1 fin material on which a predetermined hydrophilic coating film is formed. Prior to processing, this /l fin material is oiled for lubrication during pressing, and after the material whose surface is coated with press oil by such oiling is pressed, it is Assembled in combination with tube (tube expansion assembly)
After forming the fin core of the intended heat exchanger, degreasing treatment (
Cleaning with an organic solvent such as trichlene) is carried out, and the product is then sent for product inspection.
しかしながら、このような従来のフィン加工工程にあっ
ては、オイリングによるプレス油の塗布が必須の工程と
され、そしてそのために熱交換器の組立て後におけるト
リクレン等による脱脂工程が不可避とされているのであ
るが、そのような脱脂工程の採用には、幾つかの問題が
内在しているのである。即ち、このトリクレン等による
脱脂処理には、成る程度の大きさの装置が必要であり、
またその公害防止対策も講じられねばならず、更にはそ
れらの運転費も当然に必要となるところから、それらが
工場運営やコスト低減上から問題視されてきているので
ある。However, in such a conventional fin processing process, applying press oil by oiling is an essential process, and for this reason, a degreasing process using triclean, etc. after assembling the heat exchanger is considered unavoidable. However, there are some problems inherent in the adoption of such a degreasing process. In other words, this degreasing treatment using Triclean etc. requires a device of a certain size.
In addition, measures must be taken to prevent pollution, and furthermore, their operating costs are naturally required, which has been viewed as a problem from the perspective of factory management and cost reduction.
（解決手段）
ここにおいて、本発明は、かかる事情を背景にして為さ
れたものであって、その要旨とするところは、板状のＡ
６フィン素材の親水性塗膜の形成された表面に対して、
ステアリン酸若しくはフッ素樹脂等の微粉末状潤滑剤を
、水溶性樹脂をバインダとして薄層状に付着せしめた後
、所定のプレス加工を行なうようにしたことにあり、こ
れによって、従来の如きプレス加工工程に先立って実施
されていたオイリング操作を実質的に不要と為し、以て
熱交換器への組立て後におけるトリクレン等の有機溶媒
による脱脂工程も全く不要と為し得たのである。(Solution Means) Here, the present invention has been made against this background, and its gist is that a plate-shaped A
On the surface of the 6-fin material on which the hydrophilic coating was formed,
After applying a fine powder lubricant such as stearic acid or fluororesin in a thin layer using a water-soluble resin as a binder, a predetermined press process is performed. The oiling operation that had been carried out prior to the heat exchanger was substantially unnecessary, and the degreasing process using an organic solvent such as trichlene after assembly into the heat exchanger was also completely unnecessary.
（具体的構成）
ところで、かかる本発明手法において用いられるＡｌフ
ィン素材は、一般に熱交換器用として用いられているア
ルミニウム若しくはその合金からなる各種の薄板素材で
あって、一般に２５０μｍまでの厚さのものが適宜に選
定されることとなるが、また目的に応じて、それ以上の
厚さの素材も用いられ得るものである。(Specific configuration) By the way, the Al fin material used in the method of the present invention is a variety of thin plate materials made of aluminum or its alloy, which are generally used for heat exchangers, and generally have a thickness of up to 250 μm. is selected as appropriate, but depending on the purpose, a material with a greater thickness may also be used.
そして、このような板状のＡｌフィン素材に対して、公
知の手法に従って、例えば前記例示の公報に開示された
手法や、本願出願人の出願に係る特願昭６０−６８１１
１号や特願昭６０−６８１１２号の明細書に記載された
手法等に従って、親水性塗膜が形成されることとなる。Then, such a plate-shaped Al fin material is processed according to a known method, for example, the method disclosed in the above-mentioned publication, or the method disclosed in Japanese Patent Application No. 60-6811 filed by the present applicant.
A hydrophilic coating film is formed according to the method described in the specifications of No. 1 and Japanese Patent Application No. 60-68112.
この親水性塗膜は、一般に親水性塗料にて形成され、水
に対する親和性を有するものの、架橋硬化等の手法によ
って実質的に水不溶性とされた性質を有するものである
。This hydrophilic coating film is generally formed from a hydrophilic paint and has an affinity for water, but is rendered substantially water-insoluble by a method such as crosslinking and curing.
次いで、このようにして得られたＡ６フィン素材の親水
性塗膜の形成された表面に対して、本発明では、ステア
リン酸若しくはフン素樹脂（例えば、ポリテトラフルオ
ロエチレンの低分子量物等）等の微粉末状潤滑剤を、薄
層状に、水溶性樹脂をバインダとして付着せしめるので
ある。この付着操作は、一般に、水溶性樹脂の水溶液に
ステアリン酸若しくはフッ素樹脂等の微粉末状潤滑剤を
添加して分散液と為し、この分散液にて、前記、１フイ
ン素材を処理し、そして１００〜３００℃程度の温度で
焼付けることによって、有利に実施されることとなる。Next, in the present invention, stearic acid, fluorine resin (for example, low molecular weight polytetrafluoroethylene, etc.), etc. A fine powder lubricant is applied in a thin layer using a water-soluble resin as a binder. This adhesion operation is generally performed by adding a finely powdered lubricant such as stearic acid or fluororesin to an aqueous solution of a water-soluble resin to form a dispersion, and treating the above-mentioned fin material with this dispersion. This is advantageously carried out by baking at a temperature of about 100 to 300°C.
なお、その焼付時間としては、一般に１分以内、好まし
くは１０〜３０秒程度とされることとなる。The baking time is generally within 1 minute, preferably about 10 to 30 seconds.
また、かかるステアリン酸やフッ素樹脂等の微粉末状潤
滑剤をＡｌフィン素材の表面に付着、保持させるための
バインダとして機能する水溶性樹脂としては、下地の親
水性塗膜を阻害することのない公知の各種のものから選
定することが可能であるが、上記の如き焼付による付着
が行なわれる場合にあっては、そのような焼付条件に耐
え得るものであることが望ましいことは、言うまでもな
いところであり、また、ｌフィン素材の表面に付着せし
めた微粉末状潤滑剤は、プレス加工後においては除去さ
れることが望ましく、そのために、水溶性樹脂は、水浸
漬によって、或いは空調機用フィンにあってはその冷房
運転時の結露水に、溶解し得るものであることが望まし
い。この点からして、本発明で用いる水溶性樹脂として
は、水溶性のアクリル酸−アクリルアミド共重合物を選
定することが望ましいが、またポリビニルアルコールや
ポリアクリル酸若しくはその塩等の重合体であっても、
同様に使用可能である。In addition, the water-soluble resin that functions as a binder for adhering and retaining the fine powder lubricant such as stearic acid and fluororesin to the surface of the Al fin material is suitable for use in a water-soluble resin that does not inhibit the underlying hydrophilic coating film. It is possible to select from a variety of known materials, but it goes without saying that when the above-mentioned attachment is performed by baking, it is desirable that the material can withstand such baking conditions. In addition, it is desirable that the fine powder lubricant adhered to the surface of the fin material be removed after pressing, and for this reason, the water-soluble resin is soaked in water or applied to the air conditioner fin. If so, it is desirable that it be soluble in the condensed water during cooling operation. From this point of view, it is desirable to select a water-soluble acrylic acid-acrylamide copolymer as the water-soluble resin used in the present invention, but polymers such as polyvinyl alcohol, polyacrylic acid, or their salts may also be selected. Even though
It can be used as well.
そして、か（して得られた水溶性樹脂をバインダとして
、所定の微粉末状潤滑剤が付着せしめられてなる板状の
Ａｌフィン素材は、その表面に存在するステアリン酸や
フッ素樹脂等の潤滑剤によって、従来のオイリングによ
って与えられるプレス油と同様な潤滑作用を発揮して、
有効なプレス加工を可能ならしめるものであるところか
ら、従来の如きオイリング工程は全く不要となり、その
ままプレス加工に供され得るのである。なお、このよう
なフィン素材に対するプレス加工は公知の手法に従って
行なわれ、例えば特開昭６１〜２０６３１号公報等に開
示されているように、板面から筒状に突き出す構造のっ
ぽ付貫通部等が形成され、目的とする形状のフィンにプ
レス成形されることとなる。Then, the plate-shaped Al fin material, which is made by using the water-soluble resin obtained as a binder and a specified fine powder lubricant attached, is coated with lubricants such as stearic acid and fluororesin present on its surface. The agent exerts a lubricating effect similar to that of press oil provided by conventional oiling,
Since it enables effective press working, the conventional oiling process is completely unnecessary, and it can be used as is for press working. Incidentally, such press working on the fin material is carried out according to a known method. For example, as disclosed in Japanese Patent Application Laid-open No. 61-20631, etc., a penetrating part with a cylindrical structure protruding from the plate surface is formed. The fins are then press-molded into a fin of the desired shape.
また、このようにしてプレス成形されたフィンは、当然
のことながら、オイリング工程の不採用によって、その
表面にはプレス油が全く付着していないところから、従
来の如きトリクレン等の有機溶媒による脱脂工程が全く
不要となったのである。従って、これによって、脱脂装
置やその公害防止対策、運転費等を顧慮する必要がなく
なり、以て工場運営やコストの低減を効果的に果たし得
ることとなったのである。In addition, the fins press-formed in this way naturally do not undergo an oiling process, so there is no press oil attached to their surfaces, so they are degreased using organic solvents such as trichloride, unlike conventional methods. The process was completely unnecessary. Therefore, this eliminates the need to consider degreasing equipment, its pollution prevention measures, operating costs, etc., making it possible to effectively reduce factory operations and costs.
なお、本発明に従って加工して得られる／ｌフィンの表
面には、上記の如くプレス油は存在しないものの、ステ
アリン酸やフッ素樹脂等の微粉末状固体潤滑剤が親水性
樹脂からなるバインダにて付着せしめられてなる表面処
理層が存在することとなるが、そのような付着潤滑剤は
、熱交換器（フィンコア）として組立ての後等において
水洗すれば、そのような潤滑剤を含む表面処理層を容易
に、また略完全に除去することが出来るのであり、更に
空調用フィンとして用いる場合にあっては、冷房運転時
における結露水によっても、そのような表面処理層の水
溶性樹脂は容易に溶解せしめられ得るものであるところ
から、かかる結露水等によって、そのような表面処理層
を除去することが可能となるのである。As mentioned above, although there is no press oil on the surface of the /l fin obtained by processing according to the present invention, fine powder solid lubricant such as stearic acid or fluororesin is mixed with a binder made of hydrophilic resin. There will be a surface treatment layer formed by adhering the lubricant, but if such adhered lubricant is washed with water after assembly as a heat exchanger (fin core), the surface treatment layer containing such lubricant will be removed. Furthermore, when used as air conditioning fins, the water-soluble resin in the surface treatment layer can be easily and almost completely removed by dew condensation during cooling operation. Since the surface treatment layer can be dissolved, it is possible to remove such a surface treatment layer using such condensed water or the like.
また、かかる水洗後のフィン表面は、親水性塗膜に加え
て、僅かに残留する水溶性樹脂の存在によって、良好な
親水性を示すようになるのであり、これはフィン表面の
水濡れ性を向上せしめ、以て水滴の付着に基づく通風量
の低下、ひいては熱交換効率の低下を有利に改善し得る
のである。In addition to the hydrophilic coating, the fin surface after water washing exhibits good hydrophilicity due to the presence of a slight residual water-soluble resin, which improves the water wettability of the fin surface. This makes it possible to advantageously improve the reduction in airflow rate due to adhesion of water droplets, and thus the reduction in heat exchange efficiency.
そして、このようにして得られる本発明手法に従うＡｌ
フィン材（部品）は、その後、所定のチューブ等と組み
合わされて、目的とする熱交換器とされることとなるの
である。Then, Al according to the method of the present invention obtained in this way
The fin material (component) is then combined with a predetermined tube or the like to form the intended heat exchanger.
（実施例）
以下に、本発明の代表的な実施例を示し、本発明を更に
具体的に明らかにすることとするが、本発明が、そのよ
うな実施例の記載によって何等の制約をも受けるもので
ないことは、言うまでもないところである。(Examples) Below, typical examples of the present invention will be shown to clarify the present invention more specifically, but the present invention is not limited in any way by the description of such examples. It goes without saying that this is not something you should accept.
また、本発明には、以下の実施例の他にも、更には上記
の具体的記述以外にも、本発明の趣旨を逸脱しない限り
において、当業者の知識に基づいて種々なる変更、修正
、改良等を加え得るものであることが、理解されるべき
である。In addition to the following examples and the above-mentioned specific description, the present invention includes various changes, modifications, and changes based on the knowledge of those skilled in the art, as long as they do not depart from the spirit of the present invention. It should be understood that improvements and the like may be made.
実施例 １
特願昭６０−６８１１１号の明細書に開示の手法に従っ
て、親水性高分子化合物とアルカリケイ酸塩（架橋剤）
とからなる複合組成物の硬化皮膜からなる親水性塗膜を
有する、厚さが０．１１０＋ｎのＡｌ板材（Ａｔ １０
０−８２６）に対して、水溶性アクリル酸−アクリルア
ミド共重合体の水溶液に微粉末状のステアリン酸を分散
せしめてなる分散液（１５％）を用いて、バーコーター
＃８にて片面塗布した。次いで、この表面処理板に２０
０℃×３０秒間の焼付操作を施すことにより、ステアリ
ン酸粉末が水溶性樹脂からなるバインダにて薄層状態で
固定された表面処理層を、目的とするＡ１板材上に形成
した。Example 1 A hydrophilic polymer compound and an alkali silicate (crosslinking agent) were prepared according to the method disclosed in the specification of Japanese Patent Application No. 60-68111.
An Al plate material with a thickness of 0.110+n (At 10
0-826) was coated on one side with a bar coater #8 using a dispersion (15%) of finely powdered stearic acid dispersed in an aqueous solution of a water-soluble acrylic acid-acrylamide copolymer. . Next, this surface treated plate was coated with 20
By performing a baking operation at 0° C. for 30 seconds, a surface treatment layer in which stearic acid powder was fixed in a thin layer with a binder made of a water-soluble resin was formed on the target A1 plate material.
次いで、フレア性試験に使用する二側型のしごき金型を
使用して、そのポンチをカセイ洗浄（１０％ＮａＯＨ；
７０℃×３分）した後、ブレス油：ＡＦ−８をポンチ先
端に薄く塗布し、そして該金型に組み付けた後、Ａｌ素
板（未処理物）をパンチしくポンチｌ１００ｐ用；半角
８°）、シごきカラーの「首飛び」現象が発生した時点
で、上記の表面処理Ａｌ板に切り換えて、その首飛び現
象の発生の有無及び焼付の程度により、供試表面処理板
のしごき加工潤滑性を評価した。Next, the punch was caustic washed (10% NaOH;
70°C x 3 minutes), apply a thin layer of press oil: AF-8 to the tip of the punch, and after assembling it into the mold, punch the aluminum blank (untreated) with a punch for l100p; half-width 8°. ), at the point when the "neck-flying" phenomenon of the ironing collar occurs, switch to the above-mentioned surface-treated Al plate, and depending on whether the neck-skipping phenomenon occurs and the degree of seizure, ironing the test surface-treated plate. Lubricity was evaluated.
その結果、供試表面処理Ａｌ板は、「首飛び」現象の抑
制に著効を示した。即ち、未処理のＡｌ素板において発
生していた首飛び現象は、供試表面処理Ａｌ板に切り換
わると、直ちに発生しなくなった。また、焼付の程度も
著しく軽減した。なお、供試表面処理Ａｌ板は、上記の
如きプレス加工の後、水洗により、その表面処理層が除
去された後においても、良好な親水性を有していること
が認められた。As a result, the surface-treated Al plate under test showed remarkable effectiveness in suppressing the "neck-flying" phenomenon. That is, the head-off phenomenon that had occurred in the untreated Al blank plate immediately stopped occurring when the sample surface-treated Al plate was used. Additionally, the degree of seizure was significantly reduced. In addition, it was recognized that the sample surface-treated Al plate had good hydrophilicity even after the surface treatment layer was removed by washing with water after the press working as described above.
実施例 ２
表面処理剤を代える以外は、実施例Ｉと同様の実験を行
なった。そこで、表面処理剤としては、低分子量フン素
樹脂（ＰＴＦＥ）の水分散液（水２３０ｇにフッ素樹脂
の６０ｇと分散剤の３ｇを加え、攪拌して調製されたも
の）と、水溶性のアクリル酸−アクリルアミド共重合体
の水溶液とを用い、前者と後者の比が３＝１の分散液に
調製してなるものを使用し、実施例１と同様に、２００
℃×３０秒の焼付処理を施して、表面処理／ｌ板を作製
した。Example 2 An experiment similar to Example I was conducted except that the surface treatment agent was changed. Therefore, as surface treatment agents, we used an aqueous dispersion of low molecular weight fluororesin (PTFE) (prepared by adding 60 g of fluororesin and 3 g of dispersant to 230 g of water and stirring) and water-soluble acrylic resin. In the same manner as in Example 1, a dispersion prepared by preparing an aqueous solution of an acid-acrylamide copolymer with a ratio of the former to the latter of 3=1 was used.
A baking treatment was performed at ℃ for 30 seconds to produce a surface-treated/l plate.
このようにして得られた表面処理Ａｌ板のプレス加工に
おいては、従来の如きオイリングを施すことなく、その
ままプレス加工を有利に施すことが出来、以て目的とす
るＡ６フイン部品を有利に製造することが出来た。In the press working of the surface-treated Al plate obtained in this way, the press work can be advantageously performed as it is without applying oiling as in the conventional method, and the desired A6 fin parts can be advantageously manufactured. I was able to do it.
（発明の効果）
以上の説明から明らかなように、本発明に従う加工手法
によれば、フィン加工のためのプレス加工に先立つとこ
ろのオイリングが実質的に不要となり、従ってトリクレ
ン等の有機溶媒を用いた脱脂工程も不要となり、以て従
来からの脱脂装置の大きさ、その公害防止対策、運転費
等の点からの工場運営やコスト低減上の問題等が、悉く
解消されるに至ったのである。(Effects of the Invention) As is clear from the above explanation, according to the processing method according to the present invention, oiling prior to press processing for fin processing is substantially unnecessary, and therefore an organic solvent such as trichlene is not required. This eliminates the need for the degreasing process that previously existed, and all of the traditional problems with factory operation and cost reduction in terms of the size of degreasing equipment, pollution prevention measures, operating costs, etc., have been resolved. .
また、本発明に従って、親木性Ａｌフィン素材の表面に
形成された表面処理層、換言すれば水溶性樹脂からなる
バインダにて所定の微粉末状潤滑剤を薄層状に付着、固
定せしめてなる潤滑層は、必要に応じて、単なる水洗に
よって略完全に除去し得るものであり、そこに、大きな
工業的意義を見い出すことが出来るのである。例えば、
そのような表面処理層は、製品化の後において、結露水
等の水との出会いによって、簡単に除去せしめられるよ
うになるからである。Further, according to the present invention, a surface treatment layer formed on the surface of the wood-loving Al fin material, in other words, a predetermined fine powder lubricant is adhered and fixed in a thin layer with a binder made of water-soluble resin. The lubricating layer can be almost completely removed by simply washing with water, if necessary, and this has great industrial significance. for example,
This is because such a surface treatment layer can be easily removed by encountering water such as dew water after commercialization.
Claims (3)
表面に対して、ステアリン酸若しくはフッ素樹脂等の微
粉末状潤滑剤を、水溶性樹脂をバインダとして薄層状に
付着せしめた後、所定のプレス加工を行なうことを特徴
とする熱交換器用Ａｌフィン材の加工方法。(1) After applying a fine powder lubricant such as stearic acid or fluororesin in a thin layer to the surface of the plate-shaped Al fin material on which the hydrophilic coating has been formed, a water-soluble resin is used as a binder. A method for processing an Al fin material for a heat exchanger, which comprises performing a predetermined pressing process.
作によって行なわれる特許請求の範囲第１項記載の加工
方法。(2) The processing method according to claim 1, wherein the adhesion is performed by a baking operation at a temperature of 100 to 300°C.
ルアミド共重合物である特許請求の範囲第１項または第
２項記載の加工方法。(3) The processing method according to claim 1 or 2, wherein the water-soluble resin is a water-soluble acrylic acid-acrylamide copolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP117387A JPS63170492A (en) | 1987-01-07 | 1987-01-07 | Processing of al fin material for heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP117387A JPS63170492A (en) | 1987-01-07 | 1987-01-07 | Processing of al fin material for heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63170492A true JPS63170492A (en) | 1988-07-14 |
Family
ID=11494042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP117387A Pending JPS63170492A (en) | 1987-01-07 | 1987-01-07 | Processing of al fin material for heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63170492A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0379993A (en) * | 1989-08-22 | 1991-04-04 | Mitsubishi Alum Co Ltd | Heat exchanger and manufacture thereof |
| US5399192A (en) * | 1990-03-02 | 1995-03-21 | Nippon Paint Co., Ltd. | Chemicals and method for forming cured coat having lubricating and hydrophilic properties |
| GB2347144A (en) * | 1998-12-11 | 2000-08-30 | Ford Motor Co | Fluorocarbon-containing hydrophilic polymer coating composition |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4870658A (en) * | 1971-12-27 | 1973-09-25 | ||
| JPS53125437A (en) * | 1977-04-09 | 1978-11-01 | Nippon Paint Co Ltd | Method of treatment of aluminum or its alloy surface |
| JPS54142650A (en) * | 1978-04-28 | 1979-11-07 | Nippon Packaging Kk | Surface treatment method of heat exchanger in aluminium |
| JPS5765795A (en) * | 1980-10-08 | 1982-04-21 | Nippon Steel Corp | Lubricated metallic plate having excellent ddep drawability |
| JPS57198765A (en) * | 1981-05-30 | 1982-12-06 | Nippon Steel Corp | Coating compound composition of active energy curing type for forming lubricant film on metal plate |
| JPS61225044A (en) * | 1985-03-29 | 1986-10-06 | 住友軽金属工業株式会社 | Aluminum fin material for heat exchanger |
| JPS61227877A (en) * | 1985-03-29 | 1986-10-09 | Sumitomo Light Metal Ind Ltd | Surface treatment of aluminum fin for heat exchanger |
-
1987
- 1987-01-07 JP JP117387A patent/JPS63170492A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4870658A (en) * | 1971-12-27 | 1973-09-25 | ||
| JPS53125437A (en) * | 1977-04-09 | 1978-11-01 | Nippon Paint Co Ltd | Method of treatment of aluminum or its alloy surface |
| JPS54142650A (en) * | 1978-04-28 | 1979-11-07 | Nippon Packaging Kk | Surface treatment method of heat exchanger in aluminium |
| JPS5765795A (en) * | 1980-10-08 | 1982-04-21 | Nippon Steel Corp | Lubricated metallic plate having excellent ddep drawability |
| JPS57198765A (en) * | 1981-05-30 | 1982-12-06 | Nippon Steel Corp | Coating compound composition of active energy curing type for forming lubricant film on metal plate |
| JPS61225044A (en) * | 1985-03-29 | 1986-10-06 | 住友軽金属工業株式会社 | Aluminum fin material for heat exchanger |
| JPS61227877A (en) * | 1985-03-29 | 1986-10-09 | Sumitomo Light Metal Ind Ltd | Surface treatment of aluminum fin for heat exchanger |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0379993A (en) * | 1989-08-22 | 1991-04-04 | Mitsubishi Alum Co Ltd | Heat exchanger and manufacture thereof |
| US5399192A (en) * | 1990-03-02 | 1995-03-21 | Nippon Paint Co., Ltd. | Chemicals and method for forming cured coat having lubricating and hydrophilic properties |
| GB2347144A (en) * | 1998-12-11 | 2000-08-30 | Ford Motor Co | Fluorocarbon-containing hydrophilic polymer coating composition |
| US6245854B1 (en) | 1998-12-11 | 2001-06-12 | Visteon Global Technologies, Inc. | Fluorocarbon-containing hydrophilic polymer coating composition for heat exchangers |
| GB2347144B (en) * | 1998-12-11 | 2002-12-11 | Ford Motor Co | Fluorocarbon-containing hydrophilic polymer coating composition for heat exchangers |
| DE19946131B4 (en) * | 1998-12-11 | 2007-03-01 | Visteon Global Technologies, Inc., Dearborn | Fluorocarbon-containing composition for hydrophilic coatings and their use for heat exchangers |
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