JP6049362B2 - Black aluminum material and manufacturing method thereof - Google Patents
Black aluminum material and manufacturing method thereof Download PDFInfo
- Publication number
- JP6049362B2 JP6049362B2 JP2012198635A JP2012198635A JP6049362B2 JP 6049362 B2 JP6049362 B2 JP 6049362B2 JP 2012198635 A JP2012198635 A JP 2012198635A JP 2012198635 A JP2012198635 A JP 2012198635A JP 6049362 B2 JP6049362 B2 JP 6049362B2
- Authority
- JP
- Japan
- Prior art keywords
- nickel
- aluminum material
- tin
- black
- black aluminum
- 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.)
- Active
Links
Landscapes
- Laminated Bodies (AREA)
- Electroplating Methods And Accessories (AREA)
Description
本発明は、黒色アルミニウム材及びその製造方法に関する。特に、厚み方向にも黒色表面方向にも高い導電性を有する黒色アルミニウム材及びその製造方法に関する。なお、本明細書、特許請求の範囲及び要約書において、「アルミニウム材」とは純アルミニウム材及びアルミニウム合金材を含むものとする。 The present invention relates to a black aluminum material and a method for producing the same. In particular, the present invention relates to a black aluminum material having high conductivity both in the thickness direction and in the black surface direction, and a manufacturing method thereof. In the present specification, claims and abstract, “aluminum material” includes pure aluminum material and aluminum alloy material.
近年、プラズマディスプレイ装置のカバー材や撮像装置の遮光体、高解像度の発光アレイ等において、金属光沢のない黒色金属材料が使用されている。黒色化の目的は視認性を下げるためや、吸熱性あるいは放熱性を向上するためである。 In recent years, a black metal material without metallic luster has been used in a cover material of a plasma display device, a light shielding body of an imaging device, a high-resolution light emitting array, and the like. The purpose of blackening is to reduce visibility and to improve heat absorption or heat dissipation.
そこで、特許文献１には、アルミニウムに劣らない熱伝導性を有する製品として、アルミニウム板からなる基板上に、基板側から亜鉛めっき、ニッケルめっきを形成させてなる着色表面処理アルミニウム板及びその製造方法が開示されている。着色表面処理としては、着色顔料を含有する水系ウレタン樹脂の塗布、または着色顔料とロジンを含有する水系アクリル樹脂の塗布があげられている。また、特許文献２には、アルミニウムに劣らない導電性を有する製品として、アルミニウムからなる部材の少なくとも一方の表面に、亜鉛、ニッケル、スズを順次めっきしてなるめっき層を設ける表面処理アルミニウム板及びその製造方法が開示されている。ここで、めっき層の表面全面に第三リン酸ソーダ溶液を付着させ、更にその表面に着色した有機被膜を形成することが開示されている。 Therefore, in Patent Document 1, as a product having thermal conductivity not inferior to aluminum, a colored surface-treated aluminum plate obtained by forming zinc plating and nickel plating from the substrate side on a substrate made of an aluminum plate and a method for manufacturing the same Is disclosed. Examples of the colored surface treatment include application of an aqueous urethane resin containing a color pigment, or application of an aqueous acrylic resin containing a color pigment and rosin. Patent Document 2 discloses a surface-treated aluminum plate in which a plated layer formed by sequentially plating zinc, nickel, and tin is provided on at least one surface of a member made of aluminum as a product having conductivity not inferior to aluminum. The manufacturing method is disclosed. Here, it is disclosed that a sodium phosphate tribasic solution is adhered to the entire surface of the plating layer, and further a colored organic film is formed on the surface.
現在では、黒色化しながらも表面導電性や厚み方向の導電性をも有する黒色金属材料も求められるような状況となっている。しかしながら、特許文献１や特許文献２に記載の技術においては、最外層が樹脂被膜であり導電性を有さない。導電性を呈するためにはその部分の樹脂被膜を剥がしたり、例えばはんだ付けなどによる熱によって分解除去する必要があった。 At present, black metal materials having surface conductivity and conductivity in the thickness direction while being blackened are in demand. However, in the techniques described in Patent Document 1 and Patent Document 2, the outermost layer is a resin film and does not have conductivity. In order to exhibit conductivity, it was necessary to peel off the resin film at that portion or to decompose and remove it by heat, for example, by soldering.
黒色化と導電性とを両立させる試みとして、樹脂による被膜中に炭素粉末や金属微粒子などの導電性フィラーを混入する方法もとられているが、その導電性は非常に低く、不十分なものであった。 As an attempt to achieve both blackening and electrical conductivity, a method in which conductive fillers such as carbon powder and metal fine particles are mixed in a resin film has been used, but the electrical conductivity is very low and insufficient. Met.
本発明は、かかる問題点に鑑みてなされたものであって、黒色表面方向にも厚み方向にも優れた導電性を有しつつ優れた黒色の外観を呈する黒色アルミニウム材及びその製造方法を提供することを目的とする。 The present invention has been made in view of such problems, and provides a black aluminum material that exhibits excellent black appearance while having excellent conductivity both in the black surface direction and in the thickness direction, and a method for producing the same. The purpose is to do.
上記目的を達成するために、本発明の第１の観点に係る黒色アルミニウム材は、
アルミニウム材の少なくとも一方の表面に設けられた金属中間層と、
該金属中間層の表面に設けられたニッケル−スズ合金被膜とを有し、
前記ニッケル−スズ合金被膜における合金比率は、ニッケル：スズがモル比で１：１〜２：１の範囲内である。
In order to achieve the above object, the black aluminum material according to the first aspect of the present invention comprises:
A metal intermediate layer provided on at least one surface of the aluminum material;
Nickel provided on the surface of the metal intermediate layer - and a tin alloy coating,
The alloy ratio in the nickel-tin alloy coating is in the range of 1: 1 to 2: 1 in terms of molar ratio of nickel: tin .
前記ニッケル−スズ合金被膜は、ニッケル−スズ合金めっき被膜であることが好ましい。 The nickel-tin alloy coating is preferably a nickel-tin alloy plating coating.
前記金属中間層は、亜鉛または亜鉛合金からなる層であることが好ましい。 The metal intermediate layer is preferably a layer made of zinc or a zinc alloy.
前記金属中間層の厚みは、１μｍ以下であることが好ましい。 The thickness of the metal intermediate layer is preferably 1 μm or less.
また、上記目的を達成するために、本発明の第２の観点に係る黒色アルミニウム材の製造方法は、
アルミニウム材の少なくとも一方の表面に金属中間層を形成する工程と、
前記金属中間層の表面にニッケル−スズ合金被膜を形成する工程と、
を含み、
前記ニッケル−スズ合金被膜における合金比率は、ニッケル：スズがモル比で１：１〜２：１の範囲内である。
In order to achieve the above object, a method for producing a black aluminum material according to the second aspect of the present invention includes:
Forming a metal intermediate layer on at least one surface of the aluminum material;
Forming a nickel-tin alloy coating on the surface of the metal intermediate layer;
Only including,
The alloy ratio in the nickel-tin alloy coating is in the range of 1: 1 to 2: 1 in terms of molar ratio of nickel: tin .
前記ニッケル−スズ合金被膜を形成する工程は、ニッケル−スズ合金被膜をめっきする工程であることが好ましい。 The step of forming the nickel-tin alloy coating is preferably a step of plating the nickel-tin alloy coating.
前記金属中間層を形成する工程は、亜鉛または亜鉛合金からなる層を形成する工程であることが好ましい。
前記ニッケル−スズ合金被膜を形成する工程において、ニッケル源として硫酸ニッケル化合物、スズ源として硫酸スズ化合物を用いることが好ましい。
前記ニッケル−スズ合金被膜を形成する工程において、ｐＨを１０．５〜１０．７の範囲内とすることが好ましい。
The step of forming the metal intermediate layer is preferably a step of forming a layer made of zinc or a zinc alloy.
In the step of forming the nickel-tin alloy coating, it is preferable to use a nickel sulfate compound as the nickel source and a tin sulfate compound as the tin source.
In the step of forming the nickel-tin alloy coating, it is preferable that the pH is in the range of 10.5 to 10.7.
本発明に係る黒色アルミニウム材は、アルミニウム材の表面に金属中間層を有し、その表面にニッケル−スズ合金被膜を有するため、黒色表面方向と厚み方向との両方にアルミニウム材単体と同等の優れた導電性を有するとともに、優れた黒色の外観を呈する。 Since the black aluminum material according to the present invention has a metal intermediate layer on the surface of the aluminum material and a nickel-tin alloy coating on the surface, the black aluminum material has the same superiority as the aluminum material alone in both the black surface direction and the thickness direction. In addition, it has an excellent black appearance.
本実施形態に係る黒色アルミニウム材の基板となるアルミニウム材としては、フォアナイン以上の純アルミニウム材、及びＪＩＳ規格の１０００系、２０００系、３０００系、５０００系、６０００系、７０００系のいずれのアルミニウム合金材も用いることができる。 Examples of the aluminum material used as the substrate of the black aluminum material according to this embodiment include pure aluminum material of phoanain or higher, and any aluminum of JIS standard 1000 series, 2000 series, 3000 series, 5000 series, 6000 series, and 7000 series. Alloy materials can also be used.
本実施形態に係る黒色アルミニウム材のニッケル−スズ合金被膜を形成する方法としては、無電解めっき、電気めっき、スパッタリング、ＰＶＤ（Ｐｈｙｓｉｃａｌ Ｖａｐｏｒ Ｄｅｐｏｓｉｔｉｏｎ）、ＣＶＤ（Ｃｈｅｍｉｃａｌ Ｖａｐｏｒ Ｄｅｐｏｓｉｔｉｏｎ）等がある。量産性とコストの面からは、電気めっきで形成することが好ましい。 As a method for forming a nickel-tin alloy film of a black aluminum material according to the present embodiment, there are electroless plating, electroplating, sputtering, PVD (Physical Vapor Deposition), CVD (Chemical Vapor Deposition), and the like. From the viewpoint of mass productivity and cost, it is preferable to form by electroplating.
本実施形態に係るニッケル−スズ合金被膜における合金比率としては、ニッケル：スズがモル比で１：１〜１０：１の範囲内であることが好ましい。より好ましくはニッケル：スズがモル比で１：１〜３：１の範囲内である。ニッケル：スズのモル比１：１よりスズが多いと黒色度が低下するおそれがあり、ニッケル：スズのモル比１０：１よりニッケルが多くても黒色度が低下し、耐食性も低下するおそれがある。 As an alloy ratio in the nickel-tin alloy coating film according to the present embodiment, it is preferable that nickel: tin is in a range of 1: 1 to 10: 1 by molar ratio. More preferably, nickel: tin is in the range of 1: 1 to 3: 1 by molar ratio. When there is more tin than nickel: tin molar ratio 1: 1, there is a possibility that blackness may fall, and even if there is more nickel than nickel: tin molar ratio 10: 1, blackness will fall and corrosion resistance may also fall. is there.
本実施形態に係るニッケル−スズ合金被膜を電気めっきで形成する場合の条件としては、水素イオン濃度（ｐＨ）が９〜１３の範囲内、めっき浴温度が２０℃〜５０℃の範囲内、めっき時間が１０秒〜１２０秒の範囲内、電流密度が０．１Ａ／ｄｍ２〜１０Ａ／ｄｍ２の範囲内であることが好ましい。 The conditions for forming the nickel-tin alloy film according to this embodiment by electroplating include a hydrogen ion concentration (pH) in the range of 9 to 13, a plating bath temperature in the range of 20 ° C. to 50 ° C., and plating. time in the range of 10 seconds to 120 seconds, it is preferred current density is in the range of 0.1A / dm 2 ~10A / dm 2 .
本実施形態に係る黒色アルミニウム材の金属中間層を構成する金属としては、亜鉛（Ｚｎ）、ニッケル（Ｎｉ）、スズ（Ｓｎ）、チタン（Ｔｉ）、バナジウム（Ｖ）、クロム（Ｃｒ）、マンガン（Ｍｎ）、鉄（Ｆｅ）、コバルト（Ｃｏ）、銅（Ｃｕ）、銀（Ａｇ）、金（Ａｕ）、白金（Ｐｔ）、鉛（Ｐｂ）、ジルコニウム（Ｚｒ）、タングステン（Ｗ）等の金属及びこれらの合金がある。密着性を増大する効果からは、亜鉛または亜鉛合金が好ましい。 As a metal constituting the metal intermediate layer of the black aluminum material according to the present embodiment, zinc (Zn), nickel (Ni), tin (Sn), titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), copper (Cu), silver (Ag), gold (Au), platinum (Pt), lead (Pb), zirconium (Zr), tungsten (W), etc. There are metals and their alloys. Zinc or zinc alloy is preferable from the effect of increasing adhesion.
本実施形態に係る黒色アルミニウム材の金属中間層を形成する方法としては、無電解めっき、電気めっき、スパッタリング、ＰＶＤ（Ｐｈｙｓｉｃａｌ Ｖａｐｏｒ Ｄｅｐｏｓｉｔｉｏｎ）、ＣＶＤ（Ｃｈｅｍｉｃａｌ Ｖａｐｏｒ Ｄｅｐｏｓｉｔｉｏｎ）等がある。量産性とコストの面からは、無電解めっきで形成することが好ましい。 As a method for forming the metal intermediate layer of the black aluminum material according to the present embodiment, there are electroless plating, electroplating, sputtering, PVD (Physical Vapor Deposition), CVD (Chemical Vapor Deposition) and the like. From the viewpoint of mass productivity and cost, it is preferable to form by electroless plating.
以下、本発明を実施例によりさらに具体的に説明するが、本発明は以下の実施例によって何ら限定されるものではない。 EXAMPLES Hereinafter, although an Example demonstrates this invention further more concretely, this invention is not limited at all by the following Examples.
以下に説明するように、本発明の実施例１〜４に係る黒色アルミニウム材の試料を製造し、評価を行った。また、比較のため、比較例１〜３の黒色アルミニウム材の試料を製造し、評価を行った。 As described below, samples of black aluminum materials according to Examples 1 to 4 of the present invention were manufactured and evaluated. Moreover, the sample of the black aluminum material of Comparative Examples 1-3 was manufactured and evaluated for the comparison.
（実施例１〜４）
本実施例では、厚さ１５μｍのアルミニウム箔（純アルミニウム系、合金呼称１Ｎ３０）と離型フィルム（リンテック（株）製 微粘着テープＳＲＬ−０７５３Ｂ）を貼り合わせた基材を被めっき物とした。まず、３２％苛性ソーダをイオン交換水で１０倍希釈したアルカリエッチング溶液を３０℃に加温し、上述の被めっき物を９０秒間浸漬して表面の酸化被膜を除去した。被めっき物を取り出した後、イオン交換水にて１分間洗浄した。その後、乾燥処理を行わずに、イオン交換水を溶媒として表１に示す配合で調液したジンケート浴を３０℃に加温して３分間揺動しながら浸漬して、アルミニウム箔表面に亜鉛合金膜を形成した。その後、被めっき物を取り出し、イオン交換水にて１分間洗浄し６０℃の温風で１分間乾燥して、黒色めっき前処理を完了した。
(Examples 1-4)
In this example, a substrate to which a 15 μm-thick aluminum foil (pure aluminum-based, alloy designation 1N30) and a release film (Lintech Co., Ltd., slightly adhesive tape SRL-0753B) were bonded was used as the object to be plated. First, an alkaline etching solution obtained by diluting 32% caustic soda 10 times with ion exchange water was heated to 30 ° C., and the above-mentioned plating object was immersed for 90 seconds to remove the oxide film on the surface. After the object to be plated was taken out, it was washed with ion exchange water for 1 minute. Thereafter, without performing a drying treatment, a zincate bath prepared with the composition shown in Table 1 using ion-exchanged water as a solvent was heated to 30 ° C. and immersed while swinging for 3 minutes to form a zinc alloy on the surface of the aluminum foil. A film was formed. Thereafter, the object to be plated was taken out, washed with ion-exchanged water for 1 minute, and dried with hot air at 60 ° C. for 1 minute to complete the black plating pretreatment.
次に、イオン交換水を溶媒として、表１に示す配合で実施例１〜４に係るニッケル−スズ合金電気めっき浴を調液した。すなわち、イオン交換水に、硫酸ニッケル・六水和物（ＮｉＳＯ４・６Ｈ２Ｏ）、硫酸スズ・二水和物（ＳｎＳＯ４・２Ｈ２Ｏ）、ピロリン酸カリウム、グリシン、グルコン酸ナトリウム及びＨＤＴＭＡ（塩化ヘキサデシルトリメチルアンモニウム）を配合した。このめっき浴を用いて、上述の前処理を施した被めっき物に表１に示した条件でそれぞれ電気めっき処理を行った。この電気めっき処理では、不溶性酸化イリジウム被覆電極を陽極として使用した。めっき処理を行った後、被めっき物を取り出しイオン交換水にて１分間洗浄し、６０℃の温風で乾燥した。その結果、アルミニウム箔上に密着性の高いめっき被膜が形成され、実施例１〜４に係る黒色アルミニウム材の試料を得た。これら黒色アルミニウム材の黒色層のニッケル：スズの合金比率は、モル比で実施例１が２：１、実施例２が１．５：１、実施例３が１．４：１、実施例４が１．２：１だった。 Next, nickel-tin alloy electroplating baths according to Examples 1 to 4 were prepared with ion-exchanged water as a solvent and the formulation shown in Table 1. That is, nickel sulfate hexahydrate (NiSO 4 .6H 2 O), tin sulfate dihydrate (SnSO 4 .2H 2 O), potassium pyrophosphate, glycine, sodium gluconate and HDTMA (Hexadecyltrimethylammonium chloride) was blended. Using this plating bath, an electroplating treatment was performed on the object to be plated which was subjected to the above-described pretreatment under the conditions shown in Table 1. In this electroplating process, an insoluble iridium oxide-coated electrode was used as the anode. After the plating treatment, the object to be plated was taken out, washed with ion exchange water for 1 minute, and dried with hot air at 60 ° C. As a result, a highly adhesive plating film was formed on the aluminum foil, and samples of black aluminum materials according to Examples 1 to 4 were obtained. The alloy ratio of nickel: tin in the black layer of these black aluminum materials is 2: 1 in Example 1, 1.5: 1 in Example 2, 1.4: 1 in Example 3, and 4 in Example. Was 1.2: 1.
（比較例１、２）
比較例においても、厚さ１５μｍのアルミニウム箔（純アルミニウム系、合金呼称１Ｎ３０）と離型フィルム（リンテック（株）製 微粘着テープＳＲＬ−０７５３Ｂ）を貼り合わせた基材を被めっき物とした。３２％苛性ソーダをイオン交換水で１０倍希釈したアルカリエッチング溶液を３０℃に加温し、上述の被めっき物を９０秒間浸漬して表面の酸化被膜を除去した。被めっき物を取り出した後、イオン交換水にて１分間洗浄した。その後、乾燥処理を行わずに、イオン交換水を溶媒として表２に示す配合で調液したジンケート浴を３０℃に加温して３分間揺動しながら浸漬して、アルミニウム箔表面に亜鉛合金膜を形成した。その後、被めっき物を取り出し、イオン交換水にて１分間洗浄し６０℃の温風で１分間乾燥して、黒色めっき前処理を完了した。
(Comparative Examples 1 and 2)
Also in the comparative example, a base material on which an aluminum foil having a thickness of 15 μm (pure aluminum type, alloy designation 1N30) and a release film (Lintech Co., Ltd., slightly adhesive tape SRL-0753B) were bonded together was used as the object to be plated. An alkaline etching solution obtained by diluting 32% caustic soda 10 times with ion exchange water was heated to 30 ° C., and the above-mentioned plating object was immersed for 90 seconds to remove the oxide film on the surface. After the object to be plated was taken out, it was washed with ion exchange water for 1 minute. Then, without performing the drying treatment, a zincate bath prepared with the composition shown in Table 2 using ion-exchanged water as a solvent was heated to 30 ° C. and immersed for 3 minutes while swinging, and the zinc alloy was immersed in the surface of the aluminum foil. A film was formed. Thereafter, the object to be plated was taken out, washed with ion-exchanged water for 1 minute, and dried with hot air at 60 ° C. for 1 minute to complete the black plating pretreatment.
次に、イオン交換水を溶媒として表２に示す配合で比較例１、２のニッケル電気めっき浴を調液した。すなわち、イオン交換水に、硫酸ニッケル・六水和物（ＮｉＳＯ４・６Ｈ２Ｏ）及びホウ酸を配合した。このめっき浴を用いて、上述の前処理を施した被めっき物に表２に示した条件でそれぞれ電気めっき処理を行った。電気めっき処理では、不溶性酸化イリジウム被覆電極を陽極として使用した。めっき処理を行った後、被めっき物を取り出しイオン交換水にて１分間洗浄し、６０℃の温風で乾燥した。このようにして、比較例１、２の黒色アルミニウム材の試料を得た。 Next, the nickel electroplating baths of Comparative Examples 1 and 2 were prepared with the composition shown in Table 2 using ion-exchanged water as a solvent. That is, nickel sulfate hexahydrate (NiSO 4 .6H 2 O) and boric acid were blended in ion exchange water. Using this plating bath, an electroplating treatment was performed on the object to be plated which was subjected to the above-described pretreatment under the conditions shown in Table 2. In the electroplating process, an insoluble iridium oxide-coated electrode was used as the anode. After the plating treatment, the object to be plated was taken out, washed with ion exchange water for 1 minute, and dried with hot air at 60 ° C. Thus, the sample of the black aluminum material of the comparative examples 1 and 2 was obtained.
（比較例３）
次に、表３に示す配合で比較例３の塗料を調液した。これらの塗料を、厚さ１５μｍのアルミニウム箔（純アルミニウム系、合金呼称１Ｎ３０）に、バーコーター（ＲＫコントロールコータ、ＲＫ Ｐｒｉｎｔ−Ｃｏａｔ Ｉｎｓｔｒｕｍｅｎｔ Ｌｔｄ．製）を使用して塗工した。塗工には、ワイヤ径０．１６ｍｍ、ウェット膜厚６μｍのコーティングバーを使用した。塗工後、被処理物を９０℃で３０分間乾燥して、比較例３の黒色アルミニウム材の試料を得た。
(Comparative Example 3)
Next, the paint of Comparative Example 3 was prepared with the formulation shown in Table 3. These paints were applied to a 15 μm thick aluminum foil (pure aluminum base, alloy designation 1N30) using a bar coater (RK control coater, manufactured by RK Print-Coat Instrument Ltd.). For coating, a coating bar having a wire diameter of 0.16 mm and a wet film thickness of 6 μm was used. After the coating, the object to be treated was dried at 90 ° C. for 30 minutes to obtain a black aluminum material sample of Comparative Example 3.
（明度測定）
各試料について、分光測色計（ＣＭ−２６００ｄ、コニカミノルタセンシング株式会社製）を用いて、ＳＣＩモード、ＳＣＥモードの両モードによる明度、すなわちＬ＊値を測定した。結果を表１乃至表３に示す。
(Brightness measurement)
About each sample, the brightness in both SCI mode and SCE mode, ie, L * value, was measured using a spectrocolorimeter (CM-2600d, manufactured by Konica Minolta Sensing Co., Ltd.). The results are shown in Tables 1 to 3.
（抵抗値測定）
各試料について、ＸＹ方向（黒色表面方向）とＺ方向（厚み方向）の導電性を評価した。導電性評価では離型フィルムからアルミニウム箔を剥離したものを測定した。ＸＹ方向の導電性測定では、試料上に測定用端子（金めっきを施した真鍮）を載せ、測定用端子を抵抗測定器（ミリオームハイテスター ＨＩＯＫＩ３５４０）に接続したケルビンクリップで挟み、表示抵抗値が安定したときの値を読み取った。Ｚ方向の導電性測定では、試料を測定用端子上に載せ、その上に別の測定用端子を試料上に静かに載せ、さらにアクリル板をおいて１０００ｇの重りを載せた。その後、試料上下の測定用端子を抵抗測定器に接続したケルビンクリップでそれぞれ挟み、表示抵抗値が安定したときの値を読み取った。結果を表１乃至表３に示す。
(Resistance measurement)
About each sample, the electroconductivity of XY direction (black surface direction) and Z direction (thickness direction) was evaluated. In the electrical conductivity evaluation, an aluminum foil peeled from a release film was measured. In the XY direction conductivity measurement, a measurement terminal (brass plated with gold) is placed on the sample, and the measurement terminal is sandwiched between Kelvin clips connected to a resistance measuring instrument (Milliohm Hitester HIOKI3540). The value when stable was read. In the conductivity measurement in the Z direction, a sample was placed on the measurement terminal, another measurement terminal was gently placed on the sample, and a 1000 g weight was placed on the acrylic plate. Thereafter, the measurement terminals at the top and bottom of the sample were sandwiched between Kelvin clips connected to a resistance measuring instrument, and the value when the display resistance value was stabilized was read. The results are shown in Tables 1 to 3.
表１に示されるように、実施例１〜４に係る試料についてはいずれもＬ＊値が４０未満であり、黒色度の高いめっき被膜が形成されている。さらに、これらのめっき被膜は抵抗値がＸＹ方向（黒色表面方向）、Ｚ方向（厚み方向）ともに非常に低い値を示した。被膜の厚みも２μｍ以下でアルミニウム箔の厚みに比べて十分薄い。 As shown in Table 1, all of the samples according to Examples 1 to 4 have an L * value of less than 40, and a plating film with high blackness is formed. Furthermore, these plating films showed very low resistance values in both the XY direction (black surface direction) and the Z direction (thickness direction). The thickness of the coating is also 2 μm or less, which is sufficiently thinner than the thickness of the aluminum foil.
これに対して、比較例１、２の試料については、抵抗値はＸＹ方向、Ｚ方向ともに低い値を示し導電性には優れるものの、いずれもめっき被膜のＬ＊値が４０以上で厚膜になるほど黒色度が低下している。また、比較例３の試料は、Ｌ＊値が低く黒色度に優れた外観になっているが、抵抗値がＸＹ方向、Ｚ方向ともに非常に高くなっており、実施例１〜４に係る試料と比較して導電性の面で著しく劣っている。 In contrast, the samples of Comparative Examples 1 and 2, the resistance value of the XY directions, although excellent in electrical conductivity indicates a lower value in the Z-direction both in a thick film in both the L * value of the plating film 40 or more The blackness is getting lower. The sample of Comparative Example 3 has an appearance with a low L * value and excellent blackness, but the resistance value is very high in both the XY direction and the Z direction, and the samples according to Examples 1 to 4 Compared to the above, the conductivity is remarkably inferior.
以上説明したように、本実施形態及び実施例に係る黒色アルミニウム材は、黒色表面方向にも厚み方向にも優れた導電性を有しつつ黒色の外観を呈する。したがって、導電性を必要とする黒色金属の応用分野で、好適に使用することができる。 As described above, the black aluminum material according to the present embodiment and examples exhibits a black appearance while having excellent conductivity both in the black surface direction and in the thickness direction. Therefore, it can be suitably used in the application field of black metal that requires electrical conductivity.
本発明は、本発明の広義の精神と範囲を逸脱することなく、様々な実施形態及び変形が可能とされるものである。また、上述した実施形態及び実施例は、本発明を説明するためのものであり、本発明の範囲を限定するものではない。 Various embodiments and modifications can be made to the present invention without departing from the broad spirit and scope of the present invention. The above-described embodiments and examples are for explaining the present invention and do not limit the scope of the present invention.
本発明に係る黒色アルミニウム材及びその製造方法は、高い導電性と遮光性が求められ、金属光沢が外観上好ましくないような素材、例えば液晶バックライトユニット用の遮光テープ部材などとして用いられる黒色アルミニウム材を提供するのに適している。 The black aluminum material and the method for producing the same according to the present invention are required to have high conductivity and light shielding property, and black aluminum used as a material whose metallic luster is not preferable in appearance, such as a light shielding tape member for a liquid crystal backlight unit. Suitable for providing material.
Claims (9)
該金属中間層の表面に設けられたニッケル−スズ合金被膜とを有し、
前記ニッケル−スズ合金被膜における合金比率は、ニッケル：スズがモル比で１：１〜２：１の範囲内である黒色アルミニウム材。 A metal intermediate layer provided on at least one surface of the aluminum material;
Nickel provided on the surface of the metal intermediate layer - and a tin alloy coating,
The alloy ratio in the nickel-tin alloy coating is a black aluminum material in which nickel: tin is in a molar ratio of 1: 1 to 2: 1 .
前記金属中間層の表面にニッケル−スズ合金被膜を形成する工程と、
を含み、
前記ニッケル−スズ合金被膜における合金比率は、ニッケル：スズがモル比で１：１〜２：１の範囲内である黒色アルミニウム材の製造方法。 Forming a metal intermediate layer on at least one surface of the aluminum material;
Forming a nickel-tin alloy coating on the surface of the metal intermediate layer;
Only including,
The alloy ratio in the said nickel- tin alloy film is a manufacturing method of the black aluminum material whose nickel: tin is in the range of 1: 1-2: 1 by molar ratio .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012198635A JP6049362B2 (en) | 2012-09-10 | 2012-09-10 | Black aluminum material and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012198635A JP6049362B2 (en) | 2012-09-10 | 2012-09-10 | Black aluminum material and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2014051729A JP2014051729A (en) | 2014-03-20 |
| JP6049362B2 true JP6049362B2 (en) | 2016-12-21 |
Family
ID=50610463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012198635A Active JP6049362B2 (en) | 2012-09-10 | 2012-09-10 | Black aluminum material and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6049362B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110062972B (en) * | 2016-12-02 | 2022-07-01 | 日产化学株式会社 | Film and undercoat foil for energy storage device electrode |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3074762B2 (en) * | 1991-03-26 | 2000-08-07 | ぺんてる株式会社 | Tin-nickel alloy electroplating solution composition |
| JP2001192889A (en) * | 1999-12-28 | 2001-07-17 | Osaka Gas Co Ltd | Member for compressor |
| ATE362818T1 (en) * | 2002-07-24 | 2007-06-15 | Corus Aluminium Walzprod Gmbh | BRAZING MATERIAL AND PRODUCTION PROCESS THEREOF USING A PLATING BATH |
| JP2006288727A (en) * | 2005-04-11 | 2006-10-26 | Sumitomo Electric Ind Ltd | Inner pot for cooker |
| JP5256880B2 (en) * | 2008-06-24 | 2013-08-07 | 凸版印刷株式会社 | Blackened shield mesh for plasma display front plate and manufacturing method thereof |
-
2012
- 2012-09-10 JP JP2012198635A patent/JP6049362B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014051729A (en) | 2014-03-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI489002B (en) | Surface treatment plating material and manufacturing method thereof, and electronic parts | |
| JP5346965B2 (en) | Silver plating material and method for producing the same | |
| WO2013137121A1 (en) | Silver plating material | |
| WO2013047628A1 (en) | Silver plating and production method therefor | |
| TWI449809B (en) | Electrical and electronic components for the use of composite materials and electrical and electronic components | |
| WO2015068825A1 (en) | Silver plating material and method for manufacturing same | |
| CN110114516A (en) | Finish materials and its manufacturing method and the part made using the finish materials | |
| JP5872492B2 (en) | Coatings and methods | |
| TW201812108A (en) | Tinned copper terminal material, terminal, and electrical wire end part structure | |
| JP4714945B2 (en) | Manufacturing method of product made of magnesium or magnesium alloy | |
| JP4859189B2 (en) | Titanium or titanium alloy material with precious metal plating | |
| CN110114515A (en) | Finish materials and the part made using the finish materials | |
| JP6620897B2 (en) | Tin-plated copper terminal material and terminal and wire terminal structure | |
| JP7187162B2 (en) | Sn-plated material and its manufacturing method | |
| JP5185759B2 (en) | Conductive material and manufacturing method thereof | |
| JP6049362B2 (en) | Black aluminum material and manufacturing method thereof | |
| WO2021261066A1 (en) | Composite material, composite material manufacturing method, and terminal | |
| JP2013189660A (en) | Magnesium or magnesium alloy formed body, and method for manufacturing the same | |
| JP6086531B2 (en) | Silver plating material | |
| JP4339669B2 (en) | Colored surface treatment aluminum plate | |
| JP5888977B2 (en) | Black coated product and method for producing the same | |
| Kwon et al. | Electrolytic chromate films prepared via pulse electrodeposition as a Cu-Epoxy adhesion promoter | |
| WO2024154375A1 (en) | Composite material, terminal, and terminal production method | |
| Dadvand et al. | Pulse electrodeposition of nanostructured silver-tungsten-COBALT oxide composite from a non-cyanide plating bath | |
| JP2013209708A (en) | Product coated with black film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20150902 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20160711 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20160802 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20160929 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20161025 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20161122 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6049362 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |