JPS61163231A - Aluminum alloy for electromagnetic wave shielding material - Google Patents
Aluminum alloy for electromagnetic wave shielding materialInfo
- Publication number
- JPS61163231A JPS61163231A JP305385A JP305385A JPS61163231A JP S61163231 A JPS61163231 A JP S61163231A JP 305385 A JP305385 A JP 305385A JP 305385 A JP305385 A JP 305385A JP S61163231 A JPS61163231 A JP S61163231A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum alloy
- electromagnetic shielding
- shielding material
- alloy
- electromagnetic wave
- 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.)
- Granted
Links
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- Conductive Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は、電磁波シールド材用アルミニウム合金に関し
、さらに詳しくは、電磁波シールド性に優れたアルミニ
ウム合金に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to an aluminum alloy for electromagnetic shielding materials, and more particularly to an aluminum alloy with excellent electromagnetic shielding properties.
［従来技術］
従来、ＴＶ、ラジオ、ゲーム機、コンピュータ等の電気
機器は、外装にＡＢＳ樹脂が使用されてきている。この
ことは、電気機器は使用中に雑電波を発生して他の電気
機器を誤動作させたり、また、使用している電気機器自
体も他の電気機器からの雑電波によって誤動作すること
を防止するためのものである。[Prior Art] Conventionally, ABS resin has been used for the exterior of electrical equipment such as TVs, radios, game consoles, and computers. This prevents electrical equipment from generating noise during use, causing other electrical equipment to malfunction, and preventing the electrical equipment itself from malfunctioning due to radio waves from other electrical equipment. It is for.
しかして、最近、これら電気機器から発生する雑電波に
よる問題を解決するため、米国および欧州においては電
気機器より雑電波を外部に出ないように、ＦＣＣ規制（
（３０ＭＨｚ〜２１００ＭＨｚで４０ｄＢ〜５６．９ｃ
ｌＢのシールド効果）やＦＴＺ規制を法制化し、従って
、電気機器はこれらの規制を満足する構成とする必要が
生じた。Recently, in order to solve the problems caused by the interference radio waves generated by these electrical devices, in the United States and Europe, the FCC regulations have been introduced to prevent the interference radio waves from emitting from electrical devices.
(40dB to 56.9c at 30MHz to 2100MHz
1B shielding effect) and FTZ regulations have been enacted, and it has therefore become necessary for electrical equipment to have a configuration that satisfies these regulations.
現在、このための手段として、 （１）ＡＢＳ樹脂の表面に金属被膜をつける。Currently, as a means to this end, (1) Apply a metal coating to the surface of ABS resin.
（２）ＡＢＳ樹脂の表面に導電性塗料を塗布する。(2) Apply conductive paint to the surface of ABS resin.
（３）ＡＢＳ樹脂の中に金属粉末やフレークを混入する
。(3) Mixing metal powder or flakes into ABS resin.
等のことが検討されている。etc. are being considered.
しかし、これらの方法では、
（１）低周波数域では殆んどシールド効果がなく、また
、高周波数域におけるシールド効果は小さい。However, these methods have the following problems: (1) There is almost no shielding effect in the low frequency range, and the shielding effect in the high frequency range is small.
（２）耐用寿命が短かい。(2) The service life is short.
（３）コストが高い。(3) Cost is high.
等の問題があって、未だ実用化には致っていない。Due to these problems, it has not yet been put into practical use.
また、電気機器に使用されている通常の金属材料の電磁
波シールド性は、Ａ Ｂ Ｓ Ｉｌｌ脂よりも優れてお
り、鉄が最も優れ、銅、アルミニウム、亜鉛の順となっ
ている。In addition, the electromagnetic shielding properties of ordinary metal materials used in electrical equipment are better than ABS II fats, with iron being the best, followed by copper, aluminum, and zinc.
これらの金属材料の電磁波シールド材の中でも、アルミ
ニウムが最も比重が小さく、現材使用されているＡＢＳ
樹脂に代替され得る材料であるが、電気機器の軽量化に
はＡＢＳ樹脂より比重が大ぎいために、できるだけ素材
の板厚を薄くする必要があるが、板厚が薄くなればそれ
だけ電磁波シールド性が低化する。Among these metal electromagnetic shielding materials, aluminum has the lowest specific gravity, and ABS, which is currently used,
Although it is a material that can be substituted for resin, in order to reduce the weight of electrical equipment, it has a higher specific gravity than ABS resin, so it is necessary to make the material board as thin as possible, but the thinner the board thickness, the better the electromagnetic shielding properties. decreases.
［発明が解決しようとする問題点］
本発明は上記に説明したように従来において使用されて
きている電磁波シールド材の種々の問題点を解決すべく
、本発明者が鋭意研究の結果、電気機器の軽量化のため
に薄くすることかで外、かつ、低周波数域から高周波数
域までの広い周波数域において高い電磁波シールド性を
有するアルミニウム合金を提供するものである。[Problems to be Solved by the Invention] As explained above, the present invention was developed as a result of intensive research by the present inventor in order to solve the various problems of electromagnetic shielding materials that have been used in the past. The purpose of the present invention is to provide an aluminum alloy that can be made thinner to reduce weight, and also has high electromagnetic shielding properties in a wide frequency range from low frequency ranges to high frequency ranges.
［問題点を解決するための手段１
本発明に係る電磁波シールド材用アルミニウム合金の特
徴とするところは、
Ｃｕ、Ｍｎ、Ｎｉ５Ｆｅ、Ｃｒ、Ｚｒ、Ｃｏ、Ｖ、Ｔｉ
のうちから選んだ１種または２種以上を合計で０．５〜
１０田ｔ％
を含有し、残部アルミニウムおよび不可避不純物からな
ることにある。[Means for Solving the Problems 1] The aluminum alloy for electromagnetic shielding material according to the present invention is characterized by: Cu, Mn, Ni5Fe, Cr, Zr, Co, V, Ti
A total of 0.5 or more of one or more of the following
10 t%, with the remainder consisting of aluminum and unavoidable impurities.
本発明に係る電磁波シールド材用アルミニウム合金につ
いて、以下詳細に説明する。The aluminum alloy for electromagnetic shielding material according to the present invention will be explained in detail below.
先ず、本発明に係る電磁波シールド材用アルミニウム合
金の含有成分および成分割合について説明する。First, the components and component ratios of the aluminum alloy for electromagnetic shielding material according to the present invention will be explained.
Ｃｕ、Ｍｎ、Ｎｉ５Ｆｅ、Ｃｒ％Ｚｒ、Ｃｏ、■、Ｔｉ
は、一般的な結晶粒の微細化や強度向上に寄与する他に
電磁波シールド効果を付与する元素であり、含有量が０
．！５ｕ＋ｔ％未満ではこれらの効果は少なく、また、
含有量が増す程効果は大とくなるが、１０ｕ＋ｔ％を越
える含有量では電磁波シールド効果は太きくなるが、現
状の合金製造技術では量産が困難である。なお、上記元
素を２種以上含有させても同様である。よって、Ｃｕ、
Ｍｎ、 Ｎｉ、 Ｆｅ、 Ｃｒ。Cu, Mn, Ni5Fe, Cr%Zr, Co, ■, Ti
is an element that not only contributes to general crystal grain refinement and strength improvement but also provides an electromagnetic wave shielding effect, and its content is 0.
．． ! Below 5u+t%, these effects are small, and
The effect increases as the content increases, but if the content exceeds 10u+t%, the electromagnetic shielding effect becomes stronger, but mass production is difficult with the current alloy manufacturing technology. Note that the same effect can be obtained even if two or more of the above elements are contained. Therefore, Cu,
Mn, Ni, Fe, Cr.
Ｚｒ、 Ｃｏ、Ｖ、Ｆｅのうちから選んだ１種または２
種以上を合計で０．５〜Ｈ）ｗｔ％とする。One or two selected from Zr, Co, V, and Fe
The total content of the above species is 0.5 to H)wt%.
［実 施 例］
次に、本発明に係る電磁波シールド材用アルミニウム合
金の実施例を説明する。[Example] Next, an example of the aluminum alloy for electromagnetic shielding material according to the present invention will be described.
実施例
第１表に示す含有成分および成分割合のアルミニウム合
金を通常の方法によって溶製して鋳造し、加工して供試
材を製作した。EXAMPLES Aluminum alloys having the components and proportions shown in Table 1 were melted and cast by a conventional method, and processed to produce test materials.
供試材の板厚は１＋ｎｍで、調質処理はＨであり、電磁
波シールド効果はＨ１タイプ、Ｈ２タイプ、Ｈ３タイプ
、Ｔ４およびＴ６処理の何れでも同じであるので、Ｈ処
理材を代表として使用した。The thickness of the sample material is 1+nm, the heat treatment is H, and the electromagnetic shielding effect is the same for H1 type, H2 type, H3 type, T4 and T6 treatment, so H treatment material is used as a representative. did.
シールド特性については第２表に示す。The shielding characteristics are shown in Table 2.
この第２表から明らかなように、本発明に係る電磁波シ
ールド材用アルミニウム合金は、汎用性のあるアルミニ
ウム合金の５０５２や純アルミニ＝４−
ラムより電磁波シールド性が優れていることがわかる。As is clear from Table 2, the aluminum alloy for electromagnetic shielding material according to the present invention is superior in electromagnetic shielding properties to the versatile aluminum alloys 5052 and pure aluminum 4-RAM.
また、比較合金４〜１０のように、Ｃｕ。Moreover, like comparative alloys 4 to 10, Cu.
Ｍｎ、Ｎｉ５Ｆｅ、Ｃｒ５Ｚｒ、Ｃｏ、Ｖ、Ｔｉの１種
または２種以上の合計の含有量が０．５ｗｔ％より少な
い場合も電磁波シールド性が劣っていることがわかる。It can be seen that the electromagnetic shielding property is also poor when the total content of one or more of Mn, Ni5Fe, Cr5Zr, Co, V, and Ti is less than 0.5 wt%.
また、アルミニウム合金板厚をさらに薄くし、５０５２
合金や純アルミニウムと同程度のシールド性として電気
機器に使用すれば、軽量化゛に寄与することができる。In addition, the aluminum alloy plate thickness has been further reduced to 5052
If used in electrical equipment with shielding properties comparable to those of alloys or pure aluminum, it can contribute to weight reduction.
なお、Ａｌ−Ｍｇ系合金、Ａｌ−Ｃｕ系合金、Ａ１−Ｍ
ｎ系合金、ＡＩ Ｓｉ系合金、Ａｌ−Ｍｇ−８ｉ系合
金、Ａｌ−Ｚｎ−Ｍｇ系合金、Ａｌ−Ｍｇ−Ｚｎ系合金
においても、本発明に係る電磁波シールド材用アルミニ
ウム合金に含有される各元素を特定の成分割合において
含有させると、電磁波シールド性を向上させることがで
きる。In addition, Al-Mg alloy, Al-Cu alloy, A1-M
In the n-based alloy, AI-Si-based alloy, Al-Mg-8i-based alloy, Al-Zn-Mg-based alloy, and Al-Mg-Zn-based alloy, each contained in the aluminum alloy for electromagnetic shielding material according to the present invention. When elements are contained in a specific component ratio, electromagnetic shielding properties can be improved.
［発明の効果］
以上説明したように、本発明に係る電磁波シールド材用
アルミニウム合金は上記の構成を有しているものである
から、１關程度の薄い板厚であっでも、電磁波シールド
効果は優れており、従って、ＦＣＣ規制やＦＴＺ規制を
充分に満足させることができ、かつ、低周波数域から高
周波数域の広い範囲の雑電波から電気機器を守ることが
できる。[Effects of the Invention] As explained above, since the aluminum alloy for electromagnetic shielding material according to the present invention has the above structure, even if the plate thickness is about 1 inch, the electromagnetic shielding effect is high. Therefore, it can fully satisfy FCC regulations and FTZ regulations, and can protect electrical equipment from noise radio waves in a wide range from low frequency ranges to high frequency ranges.
Claims (1)
のうちから選んだ１種または２種以上を合計で０．５〜
１０ｗｔ％ を含有し、残部アルミニウムおよび不可避不純物からな
ることを特徴とする電磁波シールド材用アルミニウム合
金。[Claims] Cu, Mn, Ni, Fe, Cr, Zr, Co, V, Ti
A total of 0.5 or more of one or more of the following
An aluminum alloy for electromagnetic shielding material, characterized in that the aluminum alloy contains 10 wt% of aluminum and the remainder consists of aluminum and unavoidable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP305385A JPS61163231A (en) | 1985-01-11 | 1985-01-11 | Aluminum alloy for electromagnetic wave shielding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP305385A JPS61163231A (en) | 1985-01-11 | 1985-01-11 | Aluminum alloy for electromagnetic wave shielding material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61163231A true JPS61163231A (en) | 1986-07-23 |
| JPS6330388B2 JPS6330388B2 (en) | 1988-06-17 |
Family
ID=11546577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP305385A Granted JPS61163231A (en) | 1985-01-11 | 1985-01-11 | Aluminum alloy for electromagnetic wave shielding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61163231A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63164419A (en) * | 1986-12-26 | 1988-07-07 | 日立エーアイシー株式会社 | Electric double-layer capacitor case and manufacture of the same |
-
1985
- 1985-01-11 JP JP305385A patent/JPS61163231A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63164419A (en) * | 1986-12-26 | 1988-07-07 | 日立エーアイシー株式会社 | Electric double-layer capacitor case and manufacture of the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6330388B2 (en) | 1988-06-17 |
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