JP3133607B2 - Resin-coated aluminum plate for molded parts of electric and electronic equipment with excellent press moldability - Google Patents
Resin-coated aluminum plate for molded parts of electric and electronic equipment with excellent press moldabilityInfo
- Publication number
- JP3133607B2 JP3133607B2 JP06134842A JP13484294A JP3133607B2 JP 3133607 B2 JP3133607 B2 JP 3133607B2 JP 06134842 A JP06134842 A JP 06134842A JP 13484294 A JP13484294 A JP 13484294A JP 3133607 B2 JP3133607 B2 JP 3133607B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- aluminum plate
- electronic equipment
- coated aluminum
- electric
- 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.)
- Expired - Fee Related
Links
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Casings For Electric Apparatus (AREA)
- Laminated Bodies (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は電気、電子機器成形部品
の製造工程でのプレス加工性に優れた樹脂被覆アルミニ
ウム又はアルミニウム合金板に関するものである。本明
細書において、アルミニウム又はアルミニウム合金板
は、以下単にアルミニウム板という。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin-coated aluminum or aluminum alloy sheet having excellent press workability in the process of manufacturing molded parts for electric and electronic equipment. In the present specification, an aluminum or aluminum alloy plate is hereinafter simply referred to as an aluminum plate.
【０００２】[0002]
【従来の技術】アルミニウム板は家電製品、ＯＡ機器、
各種容器等の分野で広く使用されており、これらの製造
工程においてプレス加工されることが多い。このプレス
加工の種類としては、深絞り成形、張出し成形、伸びフ
ランジ成形、曲げ成形等があり、潤滑油を塗布して加工
することが一般的である。ところが、潤滑油を使用して
プレス加工を行った場合には、以下に示す問題点があ
る。すなわち、（１）潤滑油はスプレーで塗布されるこ
とが多く、潤滑油が周囲に飛散し作業環境の悪化につな
がる（２）プレス加工後は潤滑油を除去するために洗浄
工程が必要であるが、ここで使用されるフロン、トリク
ロロエタン等の有機溶剤が、オゾン層破壊などの地球環
境問題で廃止されようとしている、という問題点があ
る。そこで潤滑油なしでプレス加工でき洗浄工程も省略
できるアルミニウム板の開発が望まれ、特開平３−２７
９７９２に開示されているようなアルミニウム表面に有
機樹脂を被覆した材料が開発されている。このような従
来の樹脂被覆したアルミニウム板によれば無潤滑油によ
るプレス加工が可能になった。しかしこの樹脂被覆アル
ミニウム板は加工性に限度があり前記のような様々のプ
レス加工に十分対応できず、これを用いた成形は生産性
が低かった。また加工変形の少ないものではよいが、加
工変形が大きい場合や、絞り加工や、しごき加工などの
加工条件の厳しい加工においては加工不良が発生するこ
とがある、という難点があり、満足しうるものではなか
った。2. Description of the Related Art Aluminum sheets are used for home appliances, office automation equipment,
It is widely used in the field of various containers and the like, and is often pressed in these manufacturing processes. Examples of the type of press working include deep drawing, stretch forming, stretch flange forming, bending, and the like, and processing is generally performed by applying a lubricating oil. However, when press working is performed using lubricating oil, there are the following problems. That is, (1) the lubricating oil is often applied by spraying, and the lubricating oil scatters around, leading to deterioration of the working environment. (2) After the press working, a cleaning step is required to remove the lubricating oil. However, there is a problem that organic solvents such as chlorofluorocarbon and trichloroethane used here are being abolished due to global environmental problems such as depletion of the ozone layer. Therefore, development of an aluminum plate which can be pressed without lubricating oil and can omit the washing step is desired.
A material in which an aluminum surface is coated with an organic resin as disclosed in 9792 has been developed. According to such a conventional resin-coated aluminum plate, press working with non-lubricating oil has become possible. However, this resin-coated aluminum plate is limited in workability and cannot sufficiently cope with various press workings as described above, and molding using the same has low productivity. In addition, it is good that the processing deformation is small, but there is a drawback that processing defects may occur when the processing deformation is large or in the processing with severe processing conditions such as drawing and ironing, which is satisfactory. Was not.
【０００３】[0003]
【発明が解決しようとする課題】このように、樹脂被覆
アルミニウム板について高加工を受ける製品にも対応で
きるようにさらなるプレス加工性の改善が望まれてい
る。したがって本発明は、上記の従来のものの難点を克
服した成形性に優れた電気、電子機器成形部品用樹脂被
覆アルミニウム板を提供することを目的とする。さらに
本発明はプレス加工性に優れ、成形加工の生産性を高め
ることができる電気、電子機器成形部品用樹脂被覆アル
ミニウム板を提供することを目的とする。As described above, there is a demand for further improvement in press workability so as to cope with a product which is subjected to high working of a resin-coated aluminum plate. Accordingly, it is an object of the present invention to provide a resin-coated aluminum plate for molded parts of electric and electronic equipment which is excellent in moldability and overcomes the above-mentioned disadvantages of the prior art. It is a further object of the present invention to provide a resin-coated aluminum plate for molded parts for electric and electronic equipment, which is excellent in press workability and can enhance productivity in forming work.
【０００４】[0004]
【課題を解決するための手段】本発明者らは上記の事情
に鑑み鋭意検討の結果、アルミニウム材の表面粗度を一
定値以下に規制するとともに、これに特定の組成の潤滑
剤を含有する有機樹脂層を形成したものが特にプレス成
形の加工性が優れ、電気、電子機器成形部品用として好
適であることを見い出し、この知見に基づき本発明をな
すに至った。すなわち本発明は、 （１）アルミニウム板の表面粗度を、Ｒａで０．８μｍ
以下で、かつＲｚで５μｍ以下に調整し、その表面に下
地化成処理層を介して有機樹脂１００重量部に対して粉
末状潤滑剤を１〜３０重量部含有する有機樹脂組成物に
より乾燥膜厚として５μｍ以下の有機樹脂層を設け、か
つ、前記粉末状潤滑剤は、平均粒径が１０μｍ以下であ
り、その平均粒径が前記乾燥膜厚の１〜１０倍であるこ
とを特徴とするプレス加工性に優れた電気、電子機器成
形部品用樹脂被覆アルミニウム板、及び （２）粉末状潤滑剤がワックスおよび／またはフッ素樹
脂である（１）項記載のプレス加工性に優れた電気、電
子機器成形部品用樹脂被覆アルミニウム板を提供するも
のである。Means for Solving the Problems The inventors of the present invention have conducted intensive studies in view of the above circumstances, and as a result, have restricted the surface roughness of an aluminum material to a certain value or less and contained a lubricant of a specific composition. It has been found that a material having an organic resin layer formed thereon has particularly excellent workability in press molding and is suitable for use in molded parts of electric and electronic devices, and the present invention has been accomplished based on this finding. That is, the present invention provides: (1) The surface roughness of an aluminum plate is 0.8 μm in Ra.
The dry film thickness is adjusted to 5 μm or less by Rz and the surface thereof is coated with an organic resin composition containing 1 to 30 parts by weight of a powdery lubricant with respect to 100 parts by weight of the organic resin via a base chemical conversion layer. A press, wherein an organic resin layer having a thickness of 5 μm or less is provided, and the powdery lubricant has an average particle size of 10 μm or less, and the average particle size is 1 to 10 times the dry film thickness. Resin-coated aluminum plate for molded parts of electric and electronic equipment excellent in processability, and (2) electric and electronic equipment excellent in press workability according to (1), wherein the powdery lubricant is wax and / or fluororesin. An object of the present invention is to provide a resin-coated aluminum plate for a molded part.
【０００５】[0005]
【作用】次に本発明を詳細に説明する。本発明の樹脂被
覆アルミニウム板において、アルミニウム素板の表面粗
度の範囲をＲａで０．８μｍ以下かつＲｚで５μｍ以下
としたのは、これらの値を越えるとプレス加工性が著し
く低下するためである。従来樹脂被覆アルミニウム板を
使用したプレス加工においては、表面粗度をなるべく大
きくすることが良いと考えられており、このような表面
粗度はＲａ１〜２μｍ、Ｒｚ６〜７μｍ程度であった。
尚このような板の表面粗度は、ロールに予めショットブ
ラストを行いこのロールで圧延することにより製造され
ていた。本発明のように、表面粗度をＲａ０．８μｍ、
Ｒｚ５μｍを境にしてこれ以下にすると加工性が顕著に
よくなるということは上記の事情からは予想外のことで
ある。また樹脂被覆したアルミニウム板の表面粗度と樹
脂との加工性についての相関関係については従来あまり
知られていない。本発明のアルミニウム素板の表面粗度
Ｒａ、Ｒｚの範囲は前述のとおりであるが好ましくはＲ
ａが０．１〜０．６μｍかつＲｚが０．５〜３μｍであ
り、より好ましくはＲａが０．１〜０．４μｍ、かつＲ
ｚが０．５〜２μｍである。本発明においては表面粗度
においてＲａ及びＲｚの両者が上記の条件を満足しなけ
ればならない。Ｒａ又はＲｚのいずれかが上記範囲より
大きくなると目的の成形性を達成することができない。
本発明で規定されている表面粗度は、樹脂塗装工程の直
前に確保されていることが望ましい。これは下地化成処
理後の粗度に相当するが、一般に下地化成皮膜層の厚さ
は５〜５０ｎｍ程度であるために、下地化成処理による
粗度の変化はほとんどない。そのため、この表面粗度は
圧延上りの素板状態、もしくは下地化成処理の前工程で
ある脱脂処理工程で確保されておれば何等問題ない。Next, the present invention will be described in detail. In the resin-coated aluminum plate of the present invention, the range of the surface roughness of the aluminum base plate is set to 0.8 μm or less in Ra and 5 μm or less in Rz because press workability is remarkably reduced when these values are exceeded. is there. Conventionally, in press working using a resin-coated aluminum plate, it has been considered that it is better to increase the surface roughness as much as possible, and such surface roughness was about Ra 1 to 2 μm and Rz 6 to 7 μm.
The surface roughness of such a plate has been manufactured by previously performing shot blasting on a roll and rolling with the roll. As in the present invention, the surface roughness is Ra 0.8 μm,
It is unexpected from the above-mentioned circumstances that the workability is remarkably improved when Rz is set to 5 μm or less. Also, the correlation between the surface roughness of the resin-coated aluminum plate and the workability of the resin has not been known so far. The range of the surface roughnesses Ra and Rz of the aluminum base plate of the present invention is as described above, but is preferably R
a is 0.1 to 0.6 μm and Rz is 0.5 to 3 μm, more preferably Ra is 0.1 to 0.4 μm and R
z is 0.5 to 2 μm. In the present invention, both Ra and Rz must satisfy the above conditions in terms of surface roughness. If either Ra or Rz is larger than the above range, the desired formability cannot be achieved.
It is desirable that the surface roughness specified in the present invention is secured immediately before the resin coating step. This corresponds to the roughness after the underlayer chemical conversion treatment, but since the thickness of the underlayer chemical conversion coating layer is generally about 5 to 50 nm, there is almost no change in roughness due to the underlayer chemical conversion treatment. For this reason, there is no problem if the surface roughness is ensured in the state of the raw plate after rolling or in the degreasing step which is a step prior to the base chemical conversion treatment.
【０００６】下地化成処理については、塗布型、反応
型、電解型等のクロメート処理やノンクロメート処理が
一般的に用いられており、これらを利用することができ
る。被覆される有機樹脂層の樹脂としては、エポキシ樹
脂、アルキッド樹脂、アクリル樹脂、ウレタン樹脂、フ
ェノール樹脂、メラミン樹脂、ポリビニルブチラール樹
脂、ポリエステル樹脂等の一種または二種以上の混合物
もしくは共重合体が好ましい。上記樹脂の中ではエポキ
シ、アクリル、ウレタンが好ましい。これら樹脂層の乾
燥膜厚を５μｍ以下に限定したのは、５μｍを越えると
加工時に皮膜の一部が剥離しやすくなり加工性を低下さ
せるためである。樹脂層の乾燥膜厚は好ましくは０．１
〜３μｍ、より好ましくは０．５〜３μｍの範囲であ
る。また０．０５μｍ未満では均一にアルミニウム表面
を被覆することが困難となり樹脂による加工性向上の効
果が少なくなることがある。[0006] As the undercoat chemical conversion treatment, a chromate treatment such as a coating type, a reaction type, and an electrolytic type and a non-chromate treatment are generally used, and these can be used.
You. As the resin of the organic resin layer to be coated, one or a mixture or copolymer of two or more of epoxy resin, alkyd resin, acrylic resin, urethane resin, phenol resin, melamine resin, polyvinyl butyral resin, polyester resin and the like is preferable. . Among the above resins, epoxy, acrylic and urethane are preferable. The reason why the dry film thickness of these resin layers is limited to 5 μm or less is that if it exceeds 5 μm, a part of the film is easily peeled off at the time of processing and the workability is reduced. The dry thickness of the resin layer is preferably 0.1
To 3 μm, more preferably 0.5 to 3 μm. If the thickness is less than 0.05 μm, it is difficult to uniformly coat the aluminum surface, and the effect of improving the workability by the resin may be reduced.
【０００７】粉末状潤滑剤としては、ワックスまたはフ
ッ素樹脂あるはこれらの混合物を用いるのが好ましい。
ワックスとしては天然ワックス、パラフィンワックス、
ポリオレフィンワックス（例えば、ポリエチレンワック
ス、ポリプロピレンワックス）、酸化あるいは変性ポリ
オレフィンワックス（例えば、酸化あるいは変性ポリエ
チレンワックス、酸化あるいは変性ポリプロピレンワッ
クス）が挙げられる。フッ素樹脂としては、例えばポリ
４フッ化エチレン樹脂、ポリフッ化ビニル樹脂、ポリフ
ッ化ビニリデン樹脂が挙げられる。これら潤滑剤の平均
粒径は１０μｍ以下、好ましくは８μｍ以下で、かつ前
記乾燥膜厚の１〜１０倍の範囲で用いるのがよく、潤滑
剤の平均粒径が前記乾燥膜厚に比べて過少では潤滑性が
不十分であり、また、逆に過大では加工時に潤滑剤の脱
落が起こりやすくなる。より好ましい範囲は乾燥膜厚の
１．５〜５倍である。また、粉末状潤滑剤は有機樹脂１
００重量部に対して１〜３０重量部、好ましくは５〜２
０重量部、より好ましくは１０〜２０重量部とする。潤
滑剤が有機樹脂１００重量部に対して１重量部未満の添
加では潤滑性向上の効果が十分ではなく、３０重量部を
越える添加では有機樹脂の凝集力を低下させる危険性が
ある。本発明に用いられるアルミニウム板の種類、規格
については特に制限はない。純アルミニウム系の他、い
ずれのアルミニウム合金系のものにも適用することがで
きる。本発明において、電気、電子機器成形部品とは家
電製品やＯＡ機器のケース、構造部材、フロッピーディ
スク等の各種電気、電子機器用の部品などを意味し、そ
の形状、種類に特に制限はない。また、本発明の樹脂被
覆アルミニウム板は、電気、電子機器用部品以外の化粧
品の容器、熱交換器のフィン材に適用できる。本発明の
電気、電子機器成形部品用樹脂被覆アルミニウム板が優
れた成形性を示すその理由の詳細についてはまだ定かで
はない。従来潤滑油又は樹脂を使用していた場合は、表
面の平滑性が高いと加工時に材料と金型との界面から油
又は樹脂が逃げてしまい、金属接触が起こりやすくなり
加工性が低下してしまう。そのため、前記のように表面
粗度が大きく表面に油又は樹脂を保持できる構造のもの
が用いられてきたが、これに対し本発明のように表面粗
度が小さく、しかも一定値以下にすることにより加工性
を著しく向上させることができたのは予想外のことであ
る。これは上記の有機樹脂の被覆が上記の表面粗度の条
件において有効に作用し、樹脂被覆の膜を保持しながら
材料全面でプレス力を受けられるように作用しているた
めと考えられる。As the powdery lubricant, it is preferable to use wax, fluororesin, or a mixture thereof.
Natural wax, paraffin wax,
Polyolefin wax (eg, polyethylene wax, polypropylene wax) and oxidized or modified polyolefin wax (eg, oxidized or modified polyethylene wax, oxidized or modified polypropylene wax). Examples of the fluorine resin include a polytetrafluoroethylene resin, a polyvinyl fluoride resin, and a polyvinylidene fluoride resin. The average particle size of these lubricants is 10 μm or less, preferably 8 μm or less, and is preferably used in the range of 1 to 10 times the dry film thickness, and the average particle size of the lubricant is too small compared to the dry film thickness. If the lubricating property is insufficient, on the other hand, if the lubricating property is excessive, the lubricant tends to drop off during processing. A more preferred range is 1.5 to 5 times the dry film thickness. The powdery lubricant is organic resin 1
1 to 30 parts by weight, preferably 5-2 to 100 parts by weight
0 parts by weight, more preferably 10 to 20 parts by weight. If the amount of the lubricant is less than 1 part by weight based on 100 parts by weight of the organic resin, the effect of improving the lubricity is not sufficient, and if the amount exceeds 30 parts by weight, the cohesive force of the organic resin may be reduced. The type and standard of the aluminum plate used in the present invention are not particularly limited. In addition to pure aluminum, any aluminum alloy can be used. In the present invention, electric and electronic equipment molded parts mean various electric and electronic equipment parts such as cases, structural members, floppy disks and the like of home electric appliances and OA equipment, and their shapes and types are not particularly limited. In addition, the resin-coated aluminum plate of the present invention can be applied to containers for cosmetics other than parts for electric and electronic devices, and fin materials for heat exchangers. The reason why the resin-coated aluminum plate for molded parts for electric and electronic equipment of the present invention exhibits excellent formability is not yet clear. Conventionally, when lubricating oil or resin was used, if the smoothness of the surface was high, oil or resin escaped from the interface between the material and the mold during processing, metal contact was likely to occur, and workability was reduced. I will. Therefore, a structure having a large surface roughness and capable of holding oil or resin on the surface has been used as described above. On the other hand, the surface roughness is small as in the present invention, and the surface roughness is set to a certain value or less. It was unexpected that workability could be remarkably improved. It is considered that this is because the coating of the organic resin works effectively under the conditions of the surface roughness described above, and acts so as to receive a pressing force over the entire surface of the material while holding the resin-coated film.
【０００８】[0008]
【実施例】以下、実施例に基づき本発明を詳細に説明す
る。 実施例１ ＪＩＳ Ａ１１００を用いて、圧延時のロール粗度を変
えることで種々の表面粗度に調整した板厚１ｍｍの試料
を作製した後、これらに下地化成処理としてリン酸クロ
メート処理を行い（付着量は皮膜中の金属Ｃｒ換算で２
０ｍｇ／ｍ2 ）、粉末状潤滑剤として平均粒径約２μｍ
のポリオレフィンワックスを樹脂１００重量部に対し１
５重量部含有するエポキシ樹脂を乾燥膜厚で０．５μｍ
になるように塗布した。これらの試料を図１に示す型を
用いてパンチ径４０ｍｍφ、絞り比２．０、しわ押さえ
力０．１ｋｇｆ／ｍｍ2 の条件にて円筒深絞り試験を行
い、絞り抜けたものを良（○）、破断が発生したものを
不良（×）とした。図１においてＳは試料、１はパン
チ、２は絞りダイス、３はしわ押えダイスである。その
結果を、表１に示す。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on embodiments. Example 1 Using JIS A1100, samples having a sheet thickness of 1 mm adjusted to various surface roughnesses by changing the roll roughness during rolling were prepared, and then subjected to phosphoric acid chromate treatment as a base chemical conversion treatment ( The adhesion amount is 2 in terms of metal Cr in the coating.
0 mg / m 2 ), average particle size about 2 μm as a powdery lubricant
Of polyolefin wax per 100 parts by weight of resin
0.5 μm dry epoxy film containing 5 parts by weight
It was applied so that These samples were subjected to a cylindrical deep drawing test using the mold shown in FIG. 1 under the conditions of a punch diameter of 40 mmφ, a drawing ratio of 2.0, and a wrinkle holding force of 0.1 kgf / mm 2 , and the samples which were drawn out were evaluated as good (○ ), And those in which breakage occurred were evaluated as defective (x). In FIG. 1, S is a sample, 1 is a punch, 2 is a drawing die, and 3 is a wrinkle holding die. Table 1 shows the results.
【０００９】[0009]
【表１】 [Table 1]
【００１０】表１から明らかなように、表面粗度が本発
明の規定の範囲にない実験Ｎｏ．７、Ｎｏ．８、Ｎｏ．
９や従来例Ｎｏ．１０では絞り抜けずに破断が発生して
いる。これに対し、本発明の、実験Ｎｏ．１〜６ではこ
のような不良発生がなく良好な成形性を示した。この実
験Ｎｏ．１〜６のものは絞り成形用として好適である。As is clear from Table 1, the results of Experiment No. 1 in which the surface roughness is not within the range specified in the present invention. 7, no. 8, no.
9 and Conventional Example No. 9. In No. 10, the fracture occurred without drawing out. On the other hand, in Experiment No. 1 of the present invention. Nos. 1 to 6 exhibited no such defects and showed good moldability. In this experiment no. Those having 1 to 6 are suitable for drawing.
【００１１】実施例２ 実施例１で使用したＮｏ．４の素板（Ｒａ：０．５７μ
ｍ、Ｒｚ：２．４４μｍ）を用いて、下地化成処理とし
てリン酸クロメート処理（付着量は皮膜中の金属Ｃｒ換
算で２０ｍｇ／ｍ2 ）を行った後、表２に示すような樹
脂膜厚、潤滑剤粒径、潤滑剤割合を変化させた試料を作
製した。これらを実施例１と同条件で成形試験を行い、
プレス加工性の評価を行った。評価は実施例１と同様に
絞り抜け（○）／破断（×）の区別と、加工後の外観観
察を目視により行った。その結果を、表２に示す。Example 2 No. 1 used in Example 1 4 (Ra: 0.57μ)
m, Rz: 2.44 μm), and subjected to phosphoric acid chromate treatment (the amount of adhesion is 20 mg / m 2 in terms of metal Cr in the film) as a base chemical conversion treatment. A sample was prepared in which the lubricant particle size and the lubricant ratio were changed. These were subjected to a molding test under the same conditions as in Example 1, and
The press workability was evaluated. In the evaluation, as in the case of Example 1, the discrimination between draw-out (O) / break (X) and the appearance after processing were visually observed. Table 2 shows the results.
【００１２】[0012]
【表２】 [Table 2]
【００１３】表２より明らかなように、樹脂膜厚が厚す
ぎる実験Ｎｏ．１１や潤滑剤粒径が大きすぎるＮｏ．１
２ではプレス加工性は良好であるが、加工時に樹脂の剥
離が起こり外観むらが発生していることがわかる。ま
た、潤滑剤粒径が樹脂膜厚に対して小さすぎるＮｏ．１
４では加工性の向上効果が認められず、潤滑剤の割合が
多すぎるＮｏ．１３ではやはり加工性の向上効果が認め
られず、合わせて外観むらが発生している。これに対し
て実験Ｎｏ．１〜１０に示す本発明の樹脂被覆アルミニ
ウム板はいずれも良好なプレス加工性を示し、加工後の
外観も良好である。この実験Ｎｏ．１〜１０の樹脂被覆
アルミニウム板は絞り成形用として好適である。As is clear from Table 2, in Experiment No. 1 in which the resin film thickness was too large. No. 11 or No. 11 in which the lubricant particle size is too large. 1
In the case of No. 2, the press workability is good, but it can be seen that the resin is peeled off at the time of working and uneven appearance occurs. Also, the lubricant particle size is too small for the resin film thickness. 1
In No. 4, no effect of improving workability was observed, and the ratio of the lubricant was too large. In No. 13, the effect of improving the workability was not recognized, and the appearance was uneven. On the other hand, in Experiment No. All of the resin-coated aluminum plates of the present invention shown in 1 to 10 show good press workability, and also have good appearance after working. In this experiment no. The resin-coated aluminum plates 1 to 10 are suitable for drawing.
【００１４】[0014]
【発明の効果】このように本発明の電気、電子機器成形
部品用樹脂被覆アルミニウム板は、プレス加工性に優
れ、加工変形の多い高加工の成形、例えば絞り加工を含
む成形においても優れた成形性を示す（厳しい加工条
件、例えば絞り比２．０を越えるような絞り加工も可能
である）。さらにこの樹脂被覆アルミニウム板はその製
造コストが比較的低廉であり、樹脂被覆を成形工程後脱
脂する必要がなく、これを用いれば成形工程の生産性も
高めることができ工業的に実施するのに好適である。ま
た潤滑油使用の場合のような作業環境の悪化、洗浄工程
の実施による様々の環境問題の発生などの問題を伴うこ
ともない。本発明は工業上顕著な効果を奏するものであ
る。As described above, the resin-coated aluminum plate for molded parts of electric and electronic equipment according to the present invention is excellent in press workability, and is excellent in high-forming forming with many working deformations, for example, forming including drawing. (Drawing processing that exceeds severe processing conditions, for example, drawing ratio of 2.0 is also possible). Furthermore, the production cost of this resin-coated aluminum plate is relatively low, and it is not necessary to degrease the resin coating after the molding process. It is suitable. Further, there is no problem such as deterioration of the working environment as in the case of using a lubricating oil and occurrence of various environmental problems due to the execution of the cleaning process. The present invention has industrially remarkable effects.
【図１】本発明の実施例１で行った深絞り試験に用いた
型の説明図である。FIG. 1 is an explanatory diagram of a mold used in a deep drawing test performed in Example 1 of the present invention.
Ｓ 試料 １ パンチ ２ 絞りダイス ３ しわ押えダイス S sample 1 punch 2 drawing die 3 wrinkle holding die
───────────────────────────────────────────────────── フロントページの続き (72)発明者 難波江 元広 東京都千代田区丸の内２丁目６番１号 古河電気工業株式会社内 (72)発明者 上杉 康治 千葉県千葉市中央区川崎町１番地 川崎 製鉄株式会社技術研究本部内 (72)発明者 西山 直樹 千葉県千葉市中央区川崎町１番地 川崎 製鉄株式会社技術研究本部内 (72)発明者 橋口 耕一 千葉県千葉市中央区川崎町１番地 川崎 製鉄株式会社技術研究本部内 (72)発明者 松本 義裕 千葉県千葉市中央区川崎町１番地 川崎 製鉄株式会社技術研究本部内 (56)参考文献 特開 平５−311454（ＪＰ，Ａ) 特開 昭63−143290（ＪＰ，Ａ) 特開 昭64−90744（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B32B 15/08 B21D 22/20 H05K 5/00 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Motohiro Nambae 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric Co., Ltd. (72) Koji Uesugi 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Kawasaki Steel Engineering Co., Ltd. (72) Naoki Nishiyama 1st Kawasaki-cho, Chuo-ku, Chiba City, Chiba Prefecture Kawasaki Steel Co., Ltd.Technology Research Headquarters (72) Koichi Hashiguchi 1, Kawasaki-cho, Chuo-ku Chiba (72) Inventor Yoshihiro Matsumoto 1st Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Prefecture Kawasaki Steel Engineering Research Headquarters (72) References JP-A-5-311454 (JP, A) JP-A-63-143290 (JP, A) JP-A-64-90744 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B32B 15/08 B21D 22/20 H05K 5/0 0
Claims (2)
０．８μｍ以下で、かつＲｚで５μｍ以下に調整し、そ
の表面に下地化成処理層を介して有機樹脂１００重量部
に対して粉末状潤滑剤を１〜３０重量部含有する有機樹
脂組成物により乾燥膜厚として５μｍ以下の有機樹脂層
を設け、かつ、前記粉末状潤滑剤は、平均粒径が１０μ
ｍ以下であり、その平均粒径が前記乾燥膜厚の１〜１０
倍であることを特徴とするプレス加工性に優れた電気、
電子機器成形部品用樹脂被覆アルミニウム板。1. The surface roughness of an aluminum plate is adjusted to 0.8 μm or less in Ra and 5 μm or less in Rz, and the surface of the aluminum plate is powdered with respect to 100 parts by weight of an organic resin via a base chemical conversion layer. An organic resin composition containing 1 to 30 parts by weight of a lubricant is provided with an organic resin layer having a dry film thickness of 5 μm or less, and the powdery lubricant has an average particle diameter of 10 μm.
m or less, and the average particle size is 1 to 10 of the dry film thickness.
Electricity with excellent press workability, characterized by being twice
Resin-coated aluminum plate for molded parts of electronic equipment.
フッ素樹脂である請求項１記載のプレス加工性に優れた
電気、電子機器成形部品用樹脂被覆アルミニウム板。2. The resin-coated aluminum sheet for molded parts of electric and electronic equipment excellent in press workability according to claim 1, wherein the powdery lubricant is wax and / or fluororesin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06134842A JP3133607B2 (en) | 1994-05-26 | 1994-05-26 | Resin-coated aluminum plate for molded parts of electric and electronic equipment with excellent press moldability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06134842A JP3133607B2 (en) | 1994-05-26 | 1994-05-26 | Resin-coated aluminum plate for molded parts of electric and electronic equipment with excellent press moldability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07314602A JPH07314602A (en) | 1995-12-05 |
| JP3133607B2 true JP3133607B2 (en) | 2001-02-13 |
Family
ID=15137745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06134842A Expired - Fee Related JP3133607B2 (en) | 1994-05-26 | 1994-05-26 | Resin-coated aluminum plate for molded parts of electric and electronic equipment with excellent press moldability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3133607B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4634747B2 (en) * | 2004-03-25 | 2011-02-16 | 古河スカイ株式会社 | High-performance resin-coated aluminum material with excellent heat dissipation |
| JP4451911B2 (en) * | 2008-07-11 | 2010-04-14 | 古河スカイ株式会社 | Method for producing resin-coated aluminum alloy plate |
| JP5237080B2 (en) * | 2008-12-19 | 2013-07-17 | 古河スカイ株式会社 | Pre-coated metal sheet for electronic and electrical equipment |
-
1994
- 1994-05-26 JP JP06134842A patent/JP3133607B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07314602A (en) | 1995-12-05 |
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