JP2000212664A - Automotive electric conductor made of aluminum alloy - Google Patents
Automotive electric conductor made of aluminum alloyInfo
- Publication number
- JP2000212664A JP2000212664A JP1469599A JP1469599A JP2000212664A JP 2000212664 A JP2000212664 A JP 2000212664A JP 1469599 A JP1469599 A JP 1469599A JP 1469599 A JP1469599 A JP 1469599A JP 2000212664 A JP2000212664 A JP 2000212664A
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- alloy
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電気自動車の電池
群、電気機器（インバータ、モータ等）間を電気的に接
続したり、各電池間の接続、インバータ内の回路等の大
電流を通電するために用いられるＡｌ合金製自動車用導
電体に関するものである。なお、本明細書においては、
Ａｌ合金組成はすべてｗｔ％を意味するが、これを単に
％と記した。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for electrically connecting a battery group of an electric vehicle and electric devices (inverters, motors, etc.), connecting between batteries, and supplying a large current to a circuit in the inverter. The present invention relates to a conductive material for an automobile made of an Al alloy, which is used for the following. In this specification,
All Al alloy compositions mean wt%, which is simply described as%.
【０００２】[0002]
【従来の技術】電気自動車には、電池群、インバータ、
モータ等の各種の電気機器が使用されている。従来この
電池群と電気機器間、各電池間、インバータ内の回路等
を電気的に接続する導電母材（平角状や板状等の導体で
以下導電体という）としては、純銅材が多用され、主と
してボルト締めで接続されている。2. Description of the Related Art Electric vehicles include a battery group, an inverter,
Various electric devices such as motors are used. Conventionally, a pure copper material is often used as a conductive base material (a conductor having a rectangular shape or a plate shape and hereinafter referred to as a conductor) for electrically connecting a battery group and electric devices, between batteries, circuits in an inverter, and the like. , Mainly connected by bolts.
【０００３】しかしながら、近年、燃費の軽減のため自
動車の軽量化が求められており、前記の従来の銅製の導
電体を、軽量であるＡｌ又はＡｌ合金製としたいという
要望が強い。一方、地上の配電設備等の導電用Ａｌ及び
Ａｌ合金材としては、従来、１０６０（Al分99.60%以上
の純Ａl ）、６１０１(Al-0.5%Si-0.5%Mg 合金) 、６０
６３(Al-0.4%Si-0.7%Mg 合金) 、６０６１(Al-0.6%Si-
1.0%Mg-0.3%Cu-0.2%Cr 合金)が知られている（JIS H 41
80) 。これらの合金組成及び導電率を表１に示す。However, in recent years, there has been a demand for lighter automobiles in order to reduce fuel consumption, and there is a strong demand that the above-mentioned conventional copper conductor be made of lightweight Al or Al alloy. On the other hand, as conductive Al and Al alloy materials for distribution equipment on the ground, etc., conventionally, 1060 (pure Al having an Al content of 99.60% or more), 6101 (Al-0.5% Si-0.5% Mg alloy), 60
63 (Al-0.4% Si-0.7% Mg alloy), 6061 (Al-0.6% Si-
1.0% Mg-0.3% Cu-0.2% Cr alloy) (JIS H 41
80) Table 1 shows the composition and conductivity of these alloys.
【０００４】[0004]
【表１】 [Table 1]
【０００５】前記の従来の銅製の導電体をアルミニウム
製に置き換える場合、銅の比重が８．８９であり、アル
ミニウムの比重が２．７０であること、又純銅の導電率
を１００％IACSとした場合の純アルミニウム１０６０の
導電率が６１％IACS以上であることから、銅と同一電気
抵抗の導体とした場合の断面積は銅の１６０％となって
増加するが重量は５０％となり大幅に減少する。また、
銅と同一電流容量の導体とした場合の断面積は１２５％
となって増加するが重量は４０％にすぎない。これらの
ことから、銅製と同等な電気的条件の導体としてアルミ
ニウムを使用すれば、銅の場合の１／２又はそれ以下の
重量で足りることになる。When the conventional copper conductor is replaced with aluminum, the specific gravity of copper is 8.89, the specific gravity of aluminum is 2.70, and the conductivity of pure copper is 100% IACS. Since the conductivity of pure aluminum 1060 in this case is 61% IACS or more, when the conductor has the same electric resistance as copper, the cross-sectional area increases to 160% of copper but increases to 50% and the weight decreases significantly. I do. Also,
The cross-sectional area of a conductor with the same current capacity as copper is 125%
But the weight is only 40%. From these facts, if aluminum is used as a conductor under the same electrical conditions as copper, it will suffice to weigh 1/2 or less than copper.
【０００６】表２に、１０６０（純Ａｌ）、６１０１、
銅（純Ｃｕ）の室温における代表的機械的性質を示す。Table 2 shows that 1060 (pure Al), 6101,
4 shows typical mechanical properties of copper (pure Cu) at room temperature.
【表２】 [Table 2]
【０００７】表１、表２に示す如く、純アルミニウムの
１０６０は、アルミニウム導体の中で導電率が最も高い
が常温における機械的強度は低い。合金系（Ａｌ−Ｍｇ
−Ｓｉ系）の導体である６１０１−Ｔ６の常温における
機械的強度は、銅−１／２・Ｈと同等であり、導電率も
５５％IACS以上でＡｌ合金の中で最も高い。従って、銅
に代わるアルミニウム導体としては、強度と導電率に優
れた６１０１合金相当材が最も適していると考えられ
る。As shown in Tables 1 and 2, pure aluminum 1060 has the highest conductivity among aluminum conductors, but has low mechanical strength at room temperature. Alloy (Al-Mg
The mechanical strength at room temperature of 6101-T6, which is a conductor of (Si-based), is equivalent to that of copper -1 / 2.H, and the electrical conductivity is 55% IACS or more, which is the highest among Al alloys. Therefore, it is considered that a material equivalent to 6101 alloy having excellent strength and electrical conductivity is most suitable as an aluminum conductor instead of copper.
【０００８】また、従来、地上の配電設備等に使用する
前記のＡｌ及びＡｌ合金製導電体は、表面処理なしで裸
で使用される場合が大部分である。しかしながら、腐食
環境の厳しい箇所及び長期に渡って耐食性が要求される
電気機器内で使用される導電体は、Cu＋Agメッキ、Sn-Z
n 合金半田( 摩擦半田) メッキ等の表面処理を施して使
用される場合もある。また、これらのＡｌ及びＡｌ合金
製導電体の接続は、接続部表面の酸化膜をワイヤブラシ
で除去した後（メッキを施してある場合は、単に布で汚
れを拭き取った後）、接続コンパウンドを塗布して、ボ
ルト・ナットで接続するのが一般的である。Conventionally, Al and Al alloy conductors used for power distribution facilities on the ground are mostly used without any surface treatment. However, conductors used in severely corrosive environments and in electrical equipment that requires long-term corrosion resistance are Cu + Ag plated, Sn-Z
n Alloy solder (friction solder) It may be used after surface treatment such as plating. Further, the connection of these conductors made of Al and Al alloy is performed by removing the oxide film on the surface of the connection portion with a wire brush (if plating has been applied, simply wiping off dirt with a cloth). It is common to apply and connect with bolts and nuts.
【０００９】[0009]
【発明が解決しようとする課題】自動車用の導電体に、
前記の銅製導体に代えて純Ａｌ又はＡｌ合金を用いる場
合、純Ａｌは導電率が６１％IACS以上と高いが機械的強
度が低く、又６０６３、６０６１合金は機械的強度が比
較的高いが導電率が５５％IACS未満で低い。従って、自
動車用Ａｌ合金製導電体としては、前述のごとく６１０
１合金相当材が、強度及び導電率（５５％IACS以上）の
点で妥当と考えられるが、自動車用という用途に応じた
いくつかの点についての検討が必要となる。SUMMARY OF THE INVENTION A conductor for automobiles has
When pure Al or an Al alloy is used in place of the copper conductor, pure Al has a high electrical conductivity of 61% IACS or more, but low mechanical strength, and alloys 6063 and 6061 have relatively high mechanical strength but high electrical conductivity. The rate is low at less than 55% IACS. Therefore, as a conductor made of an Al alloy for automobiles, 610 is used as described above.
One alloy equivalent material is considered to be appropriate in terms of strength and electrical conductivity (55% IACS or more), but it is necessary to consider several points depending on the application for automobiles.
【００１０】即ち、前記のＡｌ合金材を自動車用の用途
に適用する場合、通電時での温度の上昇（例えば１００
℃前後）とその温度の低下という熱サイクルを伴うこ
と、また長期に渡って使用されることから、ボルト締
めつけ部の材料が変形しにくいこと、即ち耐クリープ性
が従来の銅材と同等以上で優れていること、接続部や
接続部以外の部分で耐食性が良好であること、接続部
の電気特性（接触抵抗）が良好であること等の要件を満
たす必要がある。従って導電用のＡｌ合金材料として
は、高温下での耐クリープ性が従来の銅材と同等以上で
あり、導電率が出来るだけ高いこと(55%IACS以上) が望
ましい。また、使用環境によって、導電体に特に耐食性
等が要求される場合はＡｌ合金材上に好ましい表面処理
を行うことによって解決する必要がある。本発明の課題
は、ボルトの締めつけによる応力荷重下において、通電
時の発熱により変形しにくい即ち耐クリープ性が良好
で、導電率を低下させないＡｌ合金製自動車用導電体を
提供することであり、また特に耐食性等が要求される場
合のＡｌ合金製導電体の好ましい表面処理方法を見出す
ことである。That is, when the above-mentioned Al alloy material is applied to an application for automobiles, the temperature rise during energization (for example, 100
℃) and its temperature decreases, and it is used for a long time, so the material of the bolted part is not easily deformed, that is, the creep resistance is equal to or higher than that of the conventional copper material. It is necessary to satisfy requirements such as being excellent, having good corrosion resistance in the connection portion and other portions other than the connection portion, and having good electrical characteristics (contact resistance) of the connection portion. Therefore, it is desirable that the Al alloy material for electric conductivity has a creep resistance at a high temperature equal to or higher than that of a conventional copper material and has an electric conductivity as high as possible (55% IACS or more). In addition, when the conductor is required to have particularly corrosion resistance or the like depending on the use environment, it is necessary to solve the problem by performing a preferable surface treatment on the Al alloy material. An object of the present invention is to provide an Al alloy automotive conductor that is not easily deformed by heat generation during energization, that is, has good creep resistance, and does not reduce conductivity under a stress load due to bolt tightening. Another object of the present invention is to find a preferable surface treatment method for an Al alloy conductor particularly when corrosion resistance or the like is required.
【００１１】[0011]
【課題を解決するための手段】前記の課題を解決するた
めの請求項１の発明は、Ｓｉ０．３〜０．８％、Ｍｇ
０．３５〜１．０％、Ｆｅ０．１〜０．６％、Ｃｕ０．
１２〜０．５％を含有し、残部がＡｌと不可避的不純物
からなるＡｌ合金であり、且つその調質がＴ６材もしく
はＴ８材又はＴ５材であることを特徴とするＡｌ合金製
自動車用導電体である。According to a first aspect of the present invention, there is provided a semiconductor device comprising: 0.3% to 0.8% of Si;
0.35-1.0%, Fe 0.1-0.6%, Cu0.
An aluminum alloy containing 12 to 0.5%, the balance being Al and an unavoidable impurity, and the tempering of which is a T6 material, a T8 material, or a T5 material, wherein the conductive material is made of an Al alloy. Body.
【００１２】また、請求項２の発明は、Ｓｉ０．３〜
０．８％、Ｍｇ０．３５〜１．０％、Ｆｅ０．１〜０．
６％、Ｃｕ０．１２〜０．５％を含有し、さらにＭｎ
０．１〜０．３％、Ｚｒ０．１〜０．３％の１種又は２
種を含有し、残部がＡｌと不可避的不純物からなるＡｌ
合金であり、且つその調質がＴ６材もしくはＴ８材又は
Ｔ５材であることを特徴とするＡｌ合金製自動車用導電
体である。Further, the present invention according to claim 2 is characterized in that
0.8%, Mg 0.35 to 1.0%, Fe 0.1 to 0.
6%, Cu 0.12-0.5%, and further Mn
One or two of 0.1 to 0.3% and Zr 0.1 to 0.3%
Al containing seeds, with the balance being Al and unavoidable impurities
An aluminum alloy automotive conductor characterized by being an alloy and having a temper made of T6 material, T8 material or T5 material.
【００１３】さらに、請求項３の発明は、前記請求項１
又は請求項２に記載のＡｌ合金材の表面に、第１層とし
て厚さ３〜１０μｍのＮｉメッキ被膜を有し、その上に
第２層として厚さ２〜１０μｍのＳｎメッキ被膜を有す
ることを特徴とするＡｌ合金製自動車用導電体である。Further, the invention according to claim 3 is the invention according to claim 1.
Or a surface of the Al alloy material according to claim 2 having a Ni plating film having a thickness of 3 to 10 μm as a first layer, and a Sn plating film having a thickness of 2 to 10 μm as a second layer thereon. It is a conductor for automobiles made of Al alloy characterized by the following.
【００１４】[0014]
【発明の実施の形態】以下、前記の各発明について、そ
の構成、作用効果及び具体的な実施の形態等について、
詳細に説明する。 （１）請求項１の発明は、前記のごとく所定の合金組成
からなるＡｌ合金であって、所定の調質材とすることを
特徴とするＡｌ合金製自動車用導電体である。このよう
にすることによって、所定の成形性（曲げ加工性等）と
導電率（５５％ＩＡＣＳ以上）を維持しながら、耐クリ
ープ性（高温強度）を従来の純Ｃｕ材や６１０１合金材
以上とすることができる。請求項１の発明を前記のごと
く限定した理由は、次のとおりである。Ａｌ合金中の元
素Ｓｉ、Ｍｇは、材料強度を高め、導電用材料として用
いたときの変形などを防止する作用を果たす。Ｓｉ、Ｍ
ｇによる材料強度を高める作用の一つは、主にアルミニ
ウムマトリックスに固溶することによる固溶硬化であ
る。それぞれの成分範囲の下限未満で添加された場合に
は、固溶量が少ないために十分な効果が得られず、成分
範囲の上限を越えて添加した場合には導電率が低下し導
電材としての性能が低下する。また、ＳｉとＭｇは、Ｍ
ｇ2 Ｓｉ粒子として微細に析出して、析出硬化の作用が
ある。ＳｉとＭｇのそれぞれが規定値未満ではＭｇ2 Ｓ
ｉ粒子の析出が少なく十分な強度が得られない。また、
多く添加しすぎた場合には、Ｍｇ2 Ｓｉ粒子が大きくな
り、成形性を低下させる。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, with respect to each of the above-mentioned inventions, the structure, operation, effects and specific embodiments are described.
This will be described in detail. (1) The invention according to claim 1 is an Al alloy-made automobile conductor, which is an Al alloy having a predetermined alloy composition as described above, and is used as a predetermined heat treatment material. By doing so, the creep resistance (high temperature strength) is maintained at a level higher than that of the conventional pure Cu material or 6101 alloy material while maintaining the predetermined formability (bending workability, etc.) and conductivity (55% IACS or more). can do. The reason for limiting the invention of claim 1 as described above is as follows. The elements Si and Mg in the Al alloy serve to increase the material strength and prevent deformation when used as a conductive material. Si, M
One of the effects of increasing the material strength due to g is solid solution hardening by mainly dissolving in an aluminum matrix. When added below the lower limit of each component range, a sufficient effect cannot be obtained because the amount of solid solution is small, and when added beyond the upper limit of the component range, the conductivity is reduced and the conductive material is used. Performance is reduced. Si and Mg are M
It precipitates finely as g 2 Si particles and has the effect of precipitation hardening. If each of Si and Mg is less than the specified value, Mg 2 S
Precipitation of i-particles is small and sufficient strength cannot be obtained. Also,
If too much is added, the size of the Mg 2 Si particles becomes large and the formability is reduced.
【００１５】本発明に係わるＡｌ合金は、前記のＳｉ、
Ｍｇのほかに、さらに所定量のＦｅ、Ｃｕを含有したも
のである。Ｆｅは、Ａｌと金属間化合物を形成し、分散
強化により材料の強度を向上させる。添加量が少ない場
合はその効果が得られず、多い場合には成形性が低下す
る。また、微細に析出したこれら金属間化合物が亜結晶
粒組織や再結晶粒組織を安定化させ、通電時の発熱によ
る組織内の歪みの回復を阻害することにより耐クリープ
性を向上させる。Ｃｕは、アルミニウムマトリックスに
固溶することによって材料を強化するものであるが、通
電時の材料の耐クリープ性を向上させる。成分範囲の下
限未満では、その効果が充分に発揮されず、上限を越え
ると成形性が低下する。The Al alloy according to the present invention comprises the above-mentioned Si,
It contains a predetermined amount of Fe and Cu in addition to Mg. Fe forms an intermetallic compound with Al and improves the strength of the material by dispersion strengthening. When the amount is small, the effect cannot be obtained, and when the amount is large, the moldability decreases. In addition, the finely precipitated intermetallic compounds stabilize the sub-crystal grain structure and the recrystallized grain structure, and improve the creep resistance by inhibiting the recovery of strain in the structure due to heat generation during energization. Although Cu strengthens the material by forming a solid solution in the aluminum matrix, Cu improves the creep resistance of the material during energization. When the amount is less than the lower limit of the component range, the effect is not sufficiently exhibited, and when the amount exceeds the upper limit, the moldability decreases.
【００１６】次に、本発明に係わるＡｌ合金材（圧延
材、押出材）は、調質がＴ６材もしくはＴ８材又はＴ５
材である。このようにするのは、所定の強度を得るため
である。調質をＴ６材もしくはＴ８材又はＴ５材とする
ことによって、所定の強度や、所定の耐クリープ性（高
温強度）を得ることができる。この調質は、後に好まし
い製造方法として詳しく述べるが、Ｔ６、Ｔ８は、圧延
材及び押出材のいずれにも適用され、Ｔ５は押出材のみ
に適用される。調質Ｔ６は、材料の終わりの製造工程に
おいて、溶体化処理（焼き入れ）後続いて時効硬化処理
を施すものであり、調質Ｔ８は溶体化処理後冷間加工続
いて時効硬化処理を施すものである。また、調質Ｔ５
は、特別の溶体化処理（焼き入れ）工程を省いて、所定
の断面寸法に熱間押出後冷却（焼き入れ）、続いて時効
硬化処理を施すものである。Next, the Al alloy material (rolled material, extruded material) according to the present invention has a temper of T6 material, T8 material or T5 material.
Material. This is to obtain a predetermined strength. By using a T6 material, a T8 material, or a T5 material for the refining, a predetermined strength and a predetermined creep resistance (high-temperature strength) can be obtained. This refining will be described later in detail as a preferred production method. T6 and T8 are applied to both rolled and extruded materials, and T5 is applied to only extruded materials. Temper T6 is for performing an age hardening process after solution treatment (quenching) in the manufacturing process at the end of the material, and temper T8 is for performing an age hardening process after cold working after the solution treatment. It is. In addition, tempering T5
Is a method in which a special solution treatment (quenching) step is omitted, and cooling (quenching) is performed after hot extrusion to a predetermined cross-sectional dimension, followed by age hardening.
【００１７】（２）次に、請求項２の発明は、所定の合
金組成からなるＡｌ合金であって、所定の調質材とした
ことを特徴とするＡｌ合金製自動車用導電体であり、請
求項１のＡｌ合金に、さらにＭｎ０．１〜０．３％、Ｚ
ｒ０．１〜０．３％の１種又は２種を含有させることに
よって、耐クリープ性を更に向上させたものである。請
求項２の発明に係わるＡｌ合金材を前記のごとく限定し
た理由は、次のとおりである。合金元素のＳｉ、Ｍｇ、
Ｆｅ、Ｃｕは、前記の請求項１と同様である。(2) Next, a second aspect of the present invention is an Al alloy-made automotive conductor, which is an Al alloy having a predetermined alloy composition and is used as a predetermined tempering material. The Al alloy according to claim 1, further comprising Mn 0.1 to 0.3%, Z
The creep resistance is further improved by containing one or two kinds of r 0.1 to 0.3%. The reason for limiting the Al alloy material according to the second aspect of the present invention as described above is as follows. Alloying elements Si, Mg,
Fe and Cu are the same as in the first aspect.
【００１８】また、合金元素Ｍｎ、Ｚｒは、Ａｌと金属
間化合物を形成し、分散強化により材料を強化する。添
加量がその範囲の下限未満では十分な強化が得られず、
また上限を越えると粗大析出物を形成し、材料の成形性
を低下させる。また、微細に析出したこれら金属間化合
物が亜結晶粒組織や再結晶粒組織を安定化させ、通電時
の発熱による組織内の歪みの回復を阻害することにより
耐クリープ性を向上させる。次に、本発明に係わるＡｌ
合金材（圧延材、押出材）は、請求項１と同様に調質が
Ｔ６材もしくはＴ８材又はＴ５材であるが、この内容に
ついては、前記の請求項１の発明で述べたことと同様で
ある。Further, the alloy elements Mn and Zr form an intermetallic compound with Al and strengthen the material by dispersion strengthening. If the addition amount is less than the lower limit of the range, sufficient strengthening cannot be obtained,
If the upper limit is exceeded, coarse precipitates are formed, and the formability of the material is reduced. In addition, the finely precipitated intermetallic compounds stabilize the sub-crystal grain structure and the recrystallized grain structure, and improve the creep resistance by inhibiting the recovery of strain in the structure due to heat generation during energization. Next, according to the present invention,
The alloy material (rolled material, extruded material) is T6 material, T8 material or T5 material as in the case of the first aspect, but the contents thereof are the same as those described in the first aspect of the invention. It is.
【００１９】参考までに、請求項１に係わるＡｌ合金材
（Al-Si-Mg-Fe-Cu合金材) の各調質毎の室温における機
械的性質の代表値を示すと、以下の通りである。なお、
この値は、一例であって、実際には幅を有するものであ
り、以下の値に限定されるものではない。 引張強さ（kgf ／mm2) 耐力(kgf／mm2) 伸び(%) Ｔ６材 ２６ ２４ １３ Ｔ８材 ２８ ２６ １１ Ｔ５材 １８ １６ １４ また、請求項２に係わるＡｌ合金材（Al-Si-Mg-Fe-Cu-M
n,Zr合金材) の各調質毎の室温における機械的性質は、
上記よりわずかに高い値である。即ち、引張強さ及び耐
力がいずれも上記より１kgf ／mm2 程度高く、伸びは上
記と同等である。For reference, representative values of the mechanical properties at room temperature for each temper of the Al alloy material (Al-Si-Mg-Fe-Cu alloy material) according to claim 1 are shown as follows. is there. In addition,
This value is merely an example, and actually has a width, and is not limited to the following value. Tensile strength (kgf / mm 2 ) Yield strength (kgf / mm 2 ) Elongation (%) T6 material 26 24 13 T8 material 28 26 11 T5 material 18 16 14 Further, the Al alloy material (Al-Si- Mg-Fe-Cu-M
n, Zr alloy material) at room temperature for each temper
This is slightly higher than the above. That is, both the tensile strength and the proof stress are higher by about 1 kgf / mm 2 than the above, and the elongation is equivalent to the above.
【００２０】前記のような本発明のＡｌ合金製自動車用
導電体は、後に詳しく述べる製造例から明らかなごと
く、所定の寸法の圧延材もしくは押出材として製造され
る。これらの素材は、所定の寸法に切断され、必要に応
じて、曲げ成形、穴開等の加工を行い、無処理の状態の
棒状もしく板状の導電体として使用される。なお、これ
らの無処理の状態のＡｌ合金製導電体の接続は、接続部
表面の酸化膜をワイヤブラシで除去した後、接続コンパ
ウンドを塗布して、ボルト・ナットで接続するのが好ま
しい。The aluminum alloy conductor for an automobile of the present invention as described above is manufactured as a rolled or extruded material having a predetermined size, as is apparent from a manufacturing example described later in detail. These materials are cut to a predetermined size, subjected to a process such as bending and drilling as necessary, and used as an untreated rod-shaped or plate-shaped conductor. In connection with these untreated Al alloy conductors, it is preferable to remove the oxide film on the surface of the connection portion with a wire brush, apply a connection compound, and connect with a bolt and nut.
【００２１】（３）請求項３の発明は、前記の請求項１
又は請求項２に記載のＡｌ合金材の表面に、第１層とし
て厚さ３〜１０μｍのＮｉメッキ被膜を有し、その上に
第２層として厚さ２〜１０μｍのＳｎメッキ被膜を有す
ることを特徴とするＡｌ合金製自動車用導電体である。
Ａｌ合金材の表面にこのような２層からなるメッキを施
すことにより、優れた耐食性と電気特性（接続部の電気
の接触抵抗）を有する導電体とすることができる。本発
明の導電体は、電気機器内で長期に渡って使用される場
合や、腐食環境の悪い場所に使用する場合に適用され
る。(3) The third aspect of the present invention is the first aspect of the present invention.
Or a surface of the Al alloy material according to claim 2 having a Ni plating film having a thickness of 3 to 10 μm as a first layer, and a Sn plating film having a thickness of 2 to 10 μm as a second layer thereon. It is a conductor for automobiles made of Al alloy characterized by the following.
By performing such two-layer plating on the surface of the Al alloy material, a conductor having excellent corrosion resistance and electrical characteristics (electrical contact resistance of the connection portion) can be obtained. The conductor of the present invention is applied to a case where the conductor is used for a long time in an electric device or a case where the conductor is used in a place having a bad corrosive environment.
【００２２】本発明におけるＮｉメッキは、Ａｌ合金製
導電体全体の耐食性を向上させるためであり、またＳｎ
メッキは、特に接続部の電気特性を確保するためであ
る。本発明においては、Ｎｉメッキの厚さは、３〜１０
μｍとする。３μｍ未満のような薄い場合には充分な耐
食性を維持することができなく、また１０μｍを越える
ような厚い場合には、Ｎｉメッキが割れやすくなると共
にメッキコストが高くなるからである。Ｓｎメッキの厚
さは、２〜１０μｍとする。２μｍ未満の薄い場合には
電気的接触を充分確保できなく、１０μｍを越えるよう
な厚い場合には特性に影響しなく、必要以上の厚さはコ
スト高となるからである。なお、メッキ被膜厚さのより
好ましい範囲は、上記の特性とコストの点から、Ｎｉメ
ッキの厚さは３〜７μｍであり、Ｓｎメッキの厚さは２
〜８μｍである。The Ni plating in the present invention is intended to improve the corrosion resistance of the entire Al alloy conductor,
The plating is particularly for securing the electrical characteristics of the connection part. In the present invention, the thickness of the Ni plating is 3 to 10
μm. If the thickness is less than 3 μm, sufficient corrosion resistance cannot be maintained, and if the thickness is more than 10 μm, the Ni plating is easily broken and the plating cost increases. The thickness of the Sn plating is 2 to 10 μm. If the thickness is less than 2 μm, sufficient electrical contact cannot be ensured. If the thickness is more than 10 μm, the characteristics are not affected, and the thickness more than necessary increases the cost. In addition, a more preferable range of the plating film thickness is, in view of the above characteristics and cost, the thickness of the Ni plating is 3 to 7 μm, and the thickness of the Sn plating is 2 μm.
８8 μm.
【００２３】本発明に係わるＡｌ合金製自動車用導電体
は、前述のごとく主として電気自動車の電池群、インバ
ータ、モータ等の各種の電気機器間の電気的な接続、各
電池間、インバータ内の回路等の電気的な接続のための
導体として使用される。従って、使用される導電体の形
状は、平角材（例えば断面が２ｍｍ×２０ｍｍ等）若し
くは板材（例えば厚さ２ｍｍ×２００ｍｍ×２００ｍｍ
等）であり、これらは、使用に適した形状に切断、打抜
き加工、曲げ加工、穴開け加工等を行い、更に必要な場
合は、前記のメッキを施し、電気機器等の接続のための
導電体となる。As described above, the aluminum alloy conductor for an automobile according to the present invention mainly includes an electric vehicle battery group, an electrical connection between various electric devices such as an inverter and a motor, a circuit between the batteries, and a circuit in the inverter. Etc. are used as conductors for electrical connection. Therefore, the shape of the conductor to be used is a rectangular material (for example, a cross section of 2 mm × 20 mm or the like) or a plate material (for example, a thickness of 2 mm × 200 mm × 200 mm).
These are cut, punched, bent, drilled, etc., into shapes suitable for use, and if necessary, plated as described above to provide conductive materials for connection to electrical equipment and the like. Be a body.
【００２４】（４）前記の導電体の素材である平角材若
しくは板材は、ＡＬ合金の圧延加工または押出加工によ
って製造することができる。以下に、この好ましい製造
方法について詳細に説明する。まず、前記のＡｌ合金材
を圧延加工によって製造する場合は、前記の合金組成か
らなるＡｌ合金鋳塊を半連続鋳造法等の常法により製造
し、これを５００〜５４０℃の温度で保持した後熱間圧
延を行い、その後所定の板厚まで冷間圧延を行うが、そ
の際に、前記の冷間圧延前または冷間圧延の途中若しく
は冷間圧延後において、５００℃以上の温度に保持した
後冷却（２００℃までは１℃／ｓｅｃ以上の冷却速度で
冷却）する〔溶体化処理〕。続いて必要に応じて所定の
冷間圧延を行い、最後に１５０〜２５０℃で保持する人
工時効硬化の熱処理を施すものである。上記の製造方法
を別の言い方をすると、熱間圧延又は冷間圧延→溶体化
処理（焼き入れ）→冷間圧延→人工時効硬化の工程とす
る（Ｔ８処理）か若しくは熱間圧延又は冷間圧延→溶体
化処理（焼き入れ）→人工時効硬化の工程とする（Ｔ６
処理）。(4) The rectangular material or the plate material, which is the material of the conductor, can be manufactured by rolling or extruding an AL alloy. Hereinafter, this preferred manufacturing method will be described in detail. First, when the above-mentioned Al alloy material is manufactured by rolling, an Al alloy ingot having the above-described alloy composition is manufactured by a normal method such as a semi-continuous casting method, and this is held at a temperature of 500 to 540 ° C. Post-hot rolling is performed, and then cold rolling is performed to a predetermined plate thickness. At that time, the temperature is kept at 500 ° C. or higher before the cold rolling, during the cold rolling, or after the cold rolling. After that, cooling (cooling at a cooling rate of 1 ° C./sec or more up to 200 ° C.) [solution treatment]. Subsequently, predetermined cold rolling is performed as necessary, and finally, a heat treatment of artificial age hardening maintained at 150 to 250 ° C. is performed. In other words, the above-mentioned manufacturing method is a step of hot rolling or cold rolling → solution treatment (quenching) → cold rolling → artificial age hardening (T8 treatment) or hot rolling or cold rolling. Rolling → solution treatment (quenching) → artificial age hardening process (T6
processing).
【００２５】熱間圧延前に鋳塊を５００〜５４０℃の温
度に保持するのは、添加元素の固溶量を高めるためで、
５００℃未満では十分に固溶しなく、また５４０℃を越
えると鋳塊が部分的に溶融する恐れがあるからである。
また、冷間圧延前または冷間圧延の途中若しくは冷間圧
延後に５００℃以上の温度に保持した後冷却（２００℃
までは１℃／ｓｅｃ以上の冷却速度で冷却）するのは、
保持温度が５００℃未満でも冷却速度が１℃／ｓｅｃ未
満でも添加元素の固溶が不十分となるからである。続い
て行う１５０〜２５０℃に保持するのは、過剰に固溶し
たＭｇ、Ｓｉ、Ｃｕ成分元素がＭｇ2 ＳｉやＣｕ化合物
として析出して導電材の強度をより向上させるためであ
る。前記の処理温度が１５０℃未満では析出が不足して
十分な強度が得られず、２５０℃を越えると粗大な析出
物が発生し、やはり十分な強度が得られない。従って、
本発明に係わるＡｌ合金材の圧延加工による製造は、前
記の製造方法を採用するのが好ましい。The reason why the ingot is maintained at a temperature of 500 to 540 ° C. before hot rolling is to increase the amount of added elements in solid solution.
If the temperature is lower than 500 ° C., the solid solution is not sufficiently formed. If the temperature exceeds 540 ° C., the ingot may be partially melted.
Further, the temperature is maintained at 500 ° C. or more before cold rolling, during cold rolling or after cold rolling, and then cooled (200 ° C.).
Cooling at a cooling rate of 1 ° C./sec or more until
This is because, even when the holding temperature is less than 500 ° C. and the cooling rate is less than 1 ° C./sec, the solid solution of the added element becomes insufficient. The subsequent holding at 150 to 250 ° C. is for the purpose of further improving the strength of the conductive material by causing the Mg, Si, and Cu component elements excessively dissolved to precipitate out as Mg 2 Si and Cu compounds. If the treatment temperature is lower than 150 ° C., sufficient strength cannot be obtained due to insufficient precipitation, and if it exceeds 250 ° C., coarse precipitates are generated, and sufficient strength cannot be obtained. Therefore,
For the production of the Al alloy material according to the present invention by rolling, it is preferable to employ the above-described production method.
【００２６】次に、このＡｌ合金材を押出加工で製造す
る場合は、前記の合金組成からなるＡｌ合金鋳塊（ビレ
ット）を半連続鋳造法等の常法により製造し、これを５
００〜５４０℃の温度で保持した後熱間押出を行い、そ
の後所定の断面寸法に冷間引抜を行うが、その際に、前
記冷間引抜前または冷間引抜の途中若しくは冷間引抜後
に５００℃以上の温度で保持した後冷却（２００℃まで
は１℃／ｓｅｃ以上の冷却速度で冷却）する。続いて必
要に応じて所定の冷間引抜を行い、最後に１５０〜２５
０℃で保持する人工時効硬化の熱処理を施すものであ
る。上記の製造方法を別の言い方をすると、熱間押出又
は冷間引抜→溶体化処理（焼き入れ）→冷間引抜→人工
時効硬化処理の工程とする（Ｔ８処理）か若しくは熱間
押出又は冷間引抜→溶体化処理（焼き入れ）→人工時効
硬化処理の工程とする（Ｔ６処理）。また、特別の溶体
化処理（焼き入れ）工程を省いて、所定の断面寸法に熱
間押出後冷却（２００℃までは１℃／ｓｅｃ以上の冷却
速度で冷却）→人工時効硬化処理とすることもできる
（Ｔ５処理）。Next, when this Al alloy material is manufactured by extrusion, an Al alloy ingot (a billet) having the above-described alloy composition is manufactured by a conventional method such as a semi-continuous casting method, and this is manufactured by a conventional method.
After holding at a temperature of 00 to 540 ° C., hot extrusion is performed, and then cold drawing is performed to a predetermined cross-sectional dimension. At this time, 500 mm before or during or after the cold drawing. After the temperature is maintained at a temperature of not less than 200 ° C., cooling (cooling is performed at a cooling rate of 1 ° C./sec or more up to 200 ° C.) Subsequently, predetermined cold drawing is performed as necessary, and finally 150 to 25
The heat treatment for artificial age hardening is carried out at 0 ° C. In other words, the above manufacturing method is a step of hot extrusion or cold drawing → solution treatment (quenching) → cold drawing → artificial age hardening treatment (T8 treatment) or hot extrusion or cold drawing. It is a process of thinning → solution treatment (quenching) → artificial age hardening treatment (T6 treatment). In addition, a special solution treatment (quenching) step is omitted, and after hot extrusion to a predetermined cross-sectional dimension, cooling (cooling at a cooling rate of 1 ° C./sec or more up to 200 ° C.) → artificial age hardening. (T5 processing).
【００２７】鋳塊の均質化処理である熱間押出前に鋳塊
を５００〜５４０℃の温度に保持する理由、及び溶体化
処理を５００℃以上の温度で保持した後冷却（２００℃
までは１℃／ｓｅｃ以上の冷却速度で冷却）する理由、
人工時効硬化処理を１５０〜２５０℃に保持する理由
は、前記の圧延板の製造方法で述べた理由と同様であ
る。The reason why the ingot is kept at a temperature of 500 to 540 ° C. before hot extrusion as a homogenization treatment of the ingot, and the solution treatment is kept at a temperature of 500 ° C. or more and then cooled (200 ° C.)
Up to 1 ° C / sec or more).
The reason why the artificial age hardening treatment is maintained at 150 to 250 ° C. is the same as the reason described in the method for producing a rolled plate.
【００２８】本発明に係わるＡｌ合金素材は、前記のご
とく製造することによって、優れた導電性、強度及び耐
クリープ性を得ることができる。また、このようにして
製造したＡｌ合金素材の表面に、更に前記のＮｉメッキ
とＳｎメッキの２層からなるメッキを施すことによっ
て、優れた耐食性と電気特性を有する導電体とすること
ができる。By manufacturing the Al alloy material according to the present invention as described above, excellent conductivity, strength and creep resistance can be obtained. In addition, a conductor having excellent corrosion resistance and electrical characteristics can be obtained by further plating the surface of the Al alloy material thus manufactured with the two layers of Ni plating and Sn plating.
【００２９】[0029]
【実施例】以下に本発明の実施例を、比較例等とともに
より詳細に説明する。 〔実施例１〕表３に記載の本発明に係わる合金組成範囲
内のＡｌ合金材と範囲外の比較Ａｌ合金材について、導
電体用の板材を製造した。即ち表３に記載の合金組成に
溶解鋳造後、この鋳塊を５４０℃で均質化熱処理（ソー
キング）し、これを熱間圧延し、続いて冷間圧延して板
厚５ｍｍの板材とした。この板材について、５４０℃で
溶体化処理を施した後、２００℃まで２０℃／ｓｅｃの
冷却速度で冷却し、その後２００℃で２時間の時効硬化
処理を施して供試材No.1、No.3〜No.13 （Ｔ６材）とし
た。また、供試材No.2は、熱間圧延後、板厚７ｍｍまで
冷間圧延し、上記の溶体化処理を施した後、板厚５ｍｍ
まで冷間圧延し、上記の時効硬化処理を施して供試材
（Ｔ８材）とした。EXAMPLES Examples of the present invention will be described below in more detail together with comparative examples. [Example 1] A plate material for a conductor was produced for an Al alloy material within the alloy composition range according to the present invention shown in Table 3 and a comparative Al alloy material outside the range. That is, after melting and casting to the alloy composition shown in Table 3, this ingot was subjected to a homogenizing heat treatment (soaking) at 540 ° C., and this was hot-rolled and subsequently cold-rolled to obtain a sheet material having a sheet thickness of 5 mm. This sheet material was subjected to a solution treatment at 540 ° C., then cooled to 200 ° C. at a cooling rate of 20 ° C./sec, and then subjected to an age hardening treatment at 200 ° C. for 2 hours, thereby obtaining test pieces No. 1 and No. .3 to No.13 (T6 material). The test material No. 2 was hot-rolled, then cold-rolled to a thickness of 7 mm, subjected to the solution treatment described above, and then processed to a thickness of 5 mm.
Cold-rolled and subjected to the above age hardening treatment to obtain a test material (T8 material).
【００３０】[0030]
【表３】 [Table 3]
【００３１】これらの供試材について室温で導電率を測
定して表３に記した。また、これらの供試材の高温状態
におけるボルト締め接続部の耐クリープ性をみるため、
次の試験を行った。即ち、板材サンプル５ｍｍ×２０ｍ
ｍ×２０ｍｍの表面に定圧荷重（1.2ton/cm2）を負荷
し、この状態で加熱して１２０℃で３時間保持した。次
にこれを室温まで冷却して元の板厚５ｍｍの変化量（減
少量）を測定して、材料の変化率（％）求め、材料の耐
クリープ性を評価した。この結果を表３に併記した。The electrical conductivity of these test materials was measured at room temperature and is shown in Table 3. In addition, in order to check the creep resistance of the bolted connection in the high temperature state of these test materials,
The following tests were performed. That is, a sheet material sample 5 mm x 20 m
A constant pressure load (1.2 ton / cm 2 ) was applied to the surface of mx 20 mm, heated in this state, and kept at 120 ° C for 3 hours. Next, this was cooled to room temperature, and the change (decrease) of the original plate thickness of 5 mm was measured, the change rate (%) of the material was obtained, and the creep resistance of the material was evaluated. The results are shown in Table 3.
【００３２】なお、参考のため、基準となる従来の銅材
（１／２・Ｈ）及び純Ａｌ（１０６０−Ｈ１４）につい
ても、同様に試験して、導電率と耐クリープ性を評価し
て表３に併記した。表３から明らかなごとく、本発明に
係わるＡｌ合金製導電体（No.1〜5)は、高温状態におけ
る変形量が従来の銅材( No.15)や６１０１合金( No.8)
よりも少なく耐クリープ性に優れ、導電率も５５％ＩＡ
ＣＳ以上であることがわかる。なお、比較用のＡｌ合金
材は、高温状態における変形量が大きいか又は導電率が
５５％ＩＡＣＳ未満である。For reference, a conventional copper material (1 / 2.H) and pure Al (1060-H14), which serve as references, were also tested in the same manner to evaluate their electrical conductivity and creep resistance. Also shown in Table 3. As is clear from Table 3, the Al alloy conductors (Nos. 1 to 5) according to the present invention have a large amount of deformation in a high-temperature state by a conventional copper material (No. 15) or 6101 alloy (No. 8).
Less creep resistance and electrical conductivity of 55% IA
It turns out that it is CS or more. In addition, the Al alloy material for comparison has a large deformation amount in a high temperature state or a conductivity of less than 55% IACS.
【００３３】〔実施例２〕本発明のＡｌ合金材（実施例
１の表３のNo.1〜5 ）であり、ボルト用穴径８ｍｍを有
する５ｍｍ（厚さ）×３０ｍｍ×１００ｍｍの板材につ
いて、表４に示すような各種のメッキ処理を施して供試
材とした( なお、表４には、結果は同様であるので、N
o.1のＡｌ合金材のみ記した) 。これらの各種のメッキ
処理について、処理コストを比較して表４に記した。ま
た、これらの供試材を２枚を合わせ（合わせ部１０ｍ
ｍ）、定圧荷重が1.2ton/cm2となるようにボルトで締め
つけた（ボルトの締めつけトルク１．２ｋｇ・ｍ）。な
お、締めつけボルトは、ボルト径が６ｍｍで、フランジ
付ボルト、ナット（フランジ部の径１２ｍｍ）である。
また、このボルトはステンレス製で、Ｃｒメッキが施さ
れたものである。Example 2 A 5 mm (thickness) × 30 mm × 100 mm plate material which is an Al alloy material of the present invention (No. 1 to 5 in Table 3 of Example 1) and has a bolt hole diameter of 8 mm. The specimens were subjected to various plating treatments as shown in Table 4 (note that the results are the same in Table 4;
o.1 Al alloy material only). Table 4 shows a comparison of the processing costs for these various plating processes. In addition, these two test materials were joined together (joining part 10 m
m) and tightened with bolts so that the constant pressure load was 1.2 ton / cm 2 (bolt tightening torque 1.2 kg · m). The tightening bolt has a bolt diameter of 6 mm, a flanged bolt and a nut (diameter of the flange portion is 12 mm).
This bolt is made of stainless steel and is plated with Cr.
【００３４】このように締めつけた供試材について、１
２０℃で１２時間保持後、室温で１２時間保持（１サイ
クル）の熱サイクル試験を２４０時間（１０サイクル、
１０日）実施した。この試験の前後の電気的接触抵抗を
測定して、その結果を表４に記した。また、この熱サイ
クル試験後のサンプルについて、耐食性試験を行った。
この試験は、塩水噴霧試験により、９６時間（４日）行
い、ボルトでの加圧接続部（その近傍も含む）と接続部
以外の腐食状況を観察して、その結果を表４に記した。For the test material thus tightened, 1
After holding at 20 ° C. for 12 hours, a heat cycle test of holding at room temperature for 12 hours (1 cycle) was performed for 240 hours (10 cycles,
10th). The electrical contact resistance before and after this test was measured, and the results are shown in Table 4. Further, the sample after the heat cycle test was subjected to a corrosion resistance test.
This test was performed for 96 hours (4 days) by a salt spray test. The corrosion state of the pressurized connection portion (including the vicinity thereof) with bolts and the corrosion state other than the connection portion was observed, and the results are shown in Table 4. .
【００３５】[0035]
【表４】 [Table 4]
【００３６】表４から明らかなごとく、発明の範囲内の
サンプル（Ｎｉメッキ厚さ３〜１０μｍ、Ｓｎメッキ厚
さ２〜１０μｍ）は、メッキ処理コスト、熱サイクル試
験前後の電気的接触抵抗、耐食性のいずれも良好であっ
た。発明の範囲外のサンプルは、処理コスト、接触抵
抗、耐食性のいずれかで劣ることがわかる。As is clear from Table 4, the samples within the scope of the present invention (Ni plating thickness: 3 to 10 μm, Sn plating thickness: 2 to 10 μm) have the plating treatment cost, electrical contact resistance before and after the thermal cycle test, and corrosion resistance. Were good. It can be seen that samples outside the scope of the invention are inferior in processing cost, contact resistance and corrosion resistance.
【００３７】[0037]
【発明の効果】以上詳述したように、本発明に係わるＡ
ｌ合金製自動車用導電体は、従来の銅製の導電体に比し
かなりの軽量化が可能となる。また導電率を５５％ＩＡ
ＣＳ以上に維持しながら、温度上昇時の耐クリープ性に
も優れている。更に、本発明のメッキ被覆導電体は、自
動車用のように長期間使用する電気機器や腐食環境の厳
しい場所においても、優れた耐食性と接続の際の電気特
性を有する。これらのことから、本発明の導電体は、自
動車用導電体として工業上顕著な効果を有するものであ
る。As described in detail above, A according to the present invention
The 1-alloy conductor for automobiles can be considerably reduced in weight compared to a conventional copper conductor. The conductivity is 55% IA
While maintaining CS or higher, it also has excellent creep resistance when the temperature rises. Furthermore, the plating-coated conductor of the present invention has excellent corrosion resistance and electrical characteristics at the time of connection, even in electrical equipment used for a long period of time, such as for automobiles, or in places where corrosive environments are severe. From these facts, the conductor of the present invention has industrially remarkable effects as a conductor for automobiles.
フロントページの続き (72)発明者 小林 隆雄 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 萩原 卓三 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 Ｆターム(参考） 4K024 AA03 AA07 AB02 BA06 BB02 BB09 GA04 GA16 5G301 AA03 AA08 AA09 AA12 AA13 AA14 AA19 AA20 AA24 AB01 AB08 AB13 AB20 AD10 5G307 BA04 BA07 BB03 BC06 BC09Continued on the front page (72) Inventor Takao Kobayashi Furukawa Electric Co., Ltd. 2-6-1 Marunouchi, Chiyoda-ku, Tokyo (72) Inventor Takuzo Hagiwara 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric 4K024 AA03 AA07 AB02 BA06 BB02 BB09 GA04 GA16 5G301 AA03 AA08 AA09 AA12 AA13 AA14 AA19 AA20 AA24 AB01 AB08 AB13 AB20 AD10 5G307 BA04 BA07 BB03 BC06 BC09
Claims (3)
と記す）、Ｍｇ０．３５〜１．０％、Ｆｅ０．１〜０．
６％、Ｃｕ０．１２〜０．５％を含有し、残部がＡｌと
不可避的不純物からなるＡｌ合金であり、且つその調質
がＴ６材もしくはＴ８材又はＴ５材であることを特徴と
するＡｌ合金製自動車用導電体。1. Si 0.3-0.8 wt% (hereinafter simply referred to as%
0.35 to 1.0% of Mg, and 0.1 to 0.1% of Fe.
An Al alloy containing 6% of Cu and 0.12 to 0.5% of Cu, the balance being an Al alloy composed of Al and unavoidable impurities, and having a temper of T6, T8, or T5. Alloy conductor for automobiles.
１．０％、Ｆｅ０．１〜０．６％、Ｃｕ０．１２〜０．
５％を含有し、さらにＭｎ０．１〜０．３％、Ｚｒ０．
１〜０．３％の１種又は２種を含有し、残部がＡｌと不
可避的不純物からなるＡｌ合金であり、且つその調質が
Ｔ６材もしくはＴ８材又はＴ５材であることを特徴とす
るＡｌ合金製自動車用導電体。2. 0.3% to 0.8% of Si, 0.35% of Mg
1.0%, Fe 0.1-0.6%, Cu 0.12-0.
5%, Mn 0.1-0.3%, Zr0.
It is characterized in that it is an Al alloy containing 1 to 0.3% of one or two kinds, the balance being Al and unavoidable impurities, and the refining is a T6 material, a T8 material, or a T5 material. Aluminum alloy conductor for automobiles.
材の表面に、第１層として厚さ３〜１０μｍのＮｉメッ
キ被膜を有し、その上に第２層として厚さ２〜１０μｍ
のＳｎメッキ被膜を有することを特徴とするＡｌ合金製
自動車用導電体。3. A surface of the Al alloy material according to claim 1 or 2 having a Ni plating film having a thickness of 3 to 10 μm as a first layer, and a Ni plating film having a thickness of 2 to 2 as a second layer. 10 μm
A conductor made of an Al alloy for automobiles, comprising a Sn plating film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01469599A JP3557116B2 (en) | 1999-01-22 | 1999-01-22 | Power supply conductor made of Al alloy mounted on automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01469599A JP3557116B2 (en) | 1999-01-22 | 1999-01-22 | Power supply conductor made of Al alloy mounted on automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000212664A true JP2000212664A (en) | 2000-08-02 |
| JP3557116B2 JP3557116B2 (en) | 2004-08-25 |
Family
ID=11868335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01469599A Expired - Fee Related JP3557116B2 (en) | 1999-01-22 | 1999-01-22 | Power supply conductor made of Al alloy mounted on automobile |
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| JP2002313138A (en) * | 2001-04-18 | 2002-10-25 | Furukawa Electric Co Ltd:The | Aluminum alloy conductor for electric vehicle |
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| JP2005011775A (en) * | 2003-06-23 | 2005-01-13 | Furukawa Electric Co Ltd:The | Aluminum flat cable |
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