JP3156381B2 - Wire conductor for crimp connection - Google Patents
Wire conductor for crimp connectionInfo
- Publication number
- JP3156381B2 JP3156381B2 JP21271692A JP21271692A JP3156381B2 JP 3156381 B2 JP3156381 B2 JP 3156381B2 JP 21271692 A JP21271692 A JP 21271692A JP 21271692 A JP21271692 A JP 21271692A JP 3156381 B2 JP3156381 B2 JP 3156381B2
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- wire
- conductor
- weight
- wire conductor
- present
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Description
【0001】[0001]
【産業上の利用分野】この発明は、自動車の配線用電線
導体等に用いられ、特に、接続のために端子を圧着して
使用する電線導体に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire conductor for use in automobile wiring, and more particularly to an electric wire conductor used by crimping terminals for connection.
【0002】[0002]
【従来の技術】従来、自動車の配線用電線として、主に
JIS C 3102に規定されるような軟銅線、また
はこれに錫メッキ等を施した線を撚り合わせた撚線を導
体とし、この導体に塩化ビニール、架橋ポリエチレン等
の絶縁体を同心円状に被覆した電線が使用されてきた。2. Description of the Related Art Conventionally, as a wiring wire for an automobile, a conductor is mainly composed of a soft copper wire specified in JIS C 3102 or a stranded wire obtained by twisting a wire plated with tin or the like. An electric wire in which an insulator such as vinyl chloride or cross-linked polyethylene is coated concentrically has been used.
【0003】近年、自動車の高性能化に伴って、各種の
制御回路の増加等により自動車内における配線箇所が多
くなり、またそれらに要求される信頼性も一層高まって
きている。[0003] In recent years, as the performance of automobiles has become higher, the number of wiring locations in automobiles has increased due to the increase in various control circuits and the like, and the reliability required for them has been further increased.
【0004】ところで、特に自動車配線回路において
は、制御用等の信号電流回路の占める割合が高まり、使
用する電線重量が増加してきた。[0004] By the way, especially in an automobile wiring circuit, a ratio of a signal current circuit for control or the like is increasing, and the weight of an electric wire used is increasing.
【0005】一方、省エネルギの立場等からは、自動車
重量の軽減化が要求されるようになってきた。そして、
その対策の一つとして、電線導体の細径化による重量軽
減化が求められている。On the other hand, from the standpoint of energy saving, it has been required to reduce the weight of automobiles. And
As one of the countermeasures, it is required to reduce the weight by reducing the diameter of the wire conductor.
【0006】しかしながら、従来の電線導体では、通電
容量には十分余裕があるにもかかわらず、電線導体自体
およびその端子圧着部の機械的強度が弱いため細径化す
ることは困難であった。However, in the conventional wire conductor, it is difficult to reduce the diameter of the wire conductor because the mechanical strength of the wire conductor itself and the terminal crimping portion thereof is weak even though the current carrying capacity has a sufficient margin.
【0007】そこで、このような電線導体を細径化する
ことなしに重量を軽減化する試みとして、電線導体のア
ルミニウム化(合金を含む)も一部で検討されてきた。[0007] In order to reduce the weight without reducing the diameter of the wire conductor, aluminum wire (including an alloy) of the wire conductor has been studied in part.
【0008】[0008]
【発明が解決しようとする課題】しかしながら、アルミ
ニウムは一般に強度が弱く、十分な強度を確保するには
電線導体の外径を太くするとか、撚線本数を多くするな
どの方策が必要となり、その結果絶縁体をかえって多く
使用することになってしまう。このように、電線導体を
アルミニウム化しても配線スペースを多く必要とするほ
か、重量軽減化の効果も十分には期待できず、また絶縁
体コストがかさむなど問題が多かった。However, aluminum is generally weak in strength, and to ensure sufficient strength, it is necessary to take measures such as increasing the outer diameter of the wire conductor or increasing the number of stranded wires. As a result, many insulators are used instead. As described above, even if the wire conductor is made of aluminum, a large wiring space is required, the effect of reducing the weight cannot be expected sufficiently, and there are many problems such as an increase in insulator cost.
【0009】本発明は、上記のような課題を解消するた
めになされたものであって、従来の電線導体に劣らない
電線強度および端子圧着部強度を保持し、かつ細径化に
よって重量が軽減化できる圧着接続用電線導体を提供す
ることを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and maintains wire strength and terminal crimping portion strength not inferior to those of conventional wire conductors, and reduces the weight by reducing the diameter. It is an object of the present invention to provide a wire conductor for crimping connection that can be formed.
【0010】[0010]
【課題を解決するための手段】第1の発明に係る圧着接
続用電線導体は、1.5〜4.0重量%のNiおよび
0.4〜0.6重量%のSiを含み、残部が銅から本質
的になる複数の素線を、導体断面積が0.03〜0.3
mm2となるように撚り合せてなり、引張り強さが45
kgf/mm2以上90kgf/mm2未満であり、破断
時の伸び率が9%以上20%未満であり、かつ20℃に
おける導電率が50%以上であることを特徴としてい
る。第1の発明に係る圧着接続用電線導体は、たとえ
ば、次のようにして製造することができる。1.5〜
4.0重量%のNiおよび0.4〜0.6重量%のSi
を含み、残部が銅から本質的になる溶湯を調整し、この
溶湯から鋳造により鋳造材を製造する。さらに製造した
鋳造材を次工程において冷間鍛造した後、所定の温度で
溶体化処理を施し、焼き入れ材を製造する。製造した焼
き入れ材を所定の直径サイズにまで伸線し、伸線した線
材を複数本撚り合わせて撚線とする。この撚線を真空中
所定の温度で加熱することにより時効処理を施し、圧着
接続用電線導体を接続する。According to a first aspect of the present invention, there is provided a wire conductor for crimping connection comprising 1.5 to 4.0% by weight of Ni and
A plurality of wires each containing 0.4 to 0.6 % by weight of Si and the balance consisting essentially of copper were obtained by using conductors having a cross-sectional area of 0.03 to 0.3.
mm 2 and the tensile strength is 45
kgf / mm 2 or more 90 kgf / mm is less than 2, and wherein the elongation at break is less than 20% 9% or more and conductivity at 20 ° C. is 50% or more. The wire conductor for crimp connection according to the first invention can be manufactured, for example, as follows. 1.5-
4.0 wt% Ni and 0.4-0.6 wt% Si
Is prepared, and a cast material is produced from the molten metal by casting. Further, after the manufactured cast material is cold forged in the next step, a solution treatment is performed at a predetermined temperature to manufacture a quenched material. The manufactured quenched material is drawn to a predetermined diameter size, and a plurality of drawn wires are twisted into a stranded wire. The stranded wire is heated at a predetermined temperature in a vacuum to perform aging treatment, and the wire conductor for crimp connection is connected.
【0011】この際、圧着接続用電線導体の引張り強さ
が最終的に45kgf/mm2以上90kgf/mm2未
満となり、破断時の伸び率が9%以上20%未満とな
り、かつ20℃における導電率が50%以上となるよう
に合金組成に合わせて適宜素線の直径、溶体化処理にお
ける熱処理条件、時効処理における加工度および熱処理
条件等が調整されることが望ましい。At this time, the tensile strength of the wire conductor for crimping connection finally becomes 45 kgf / mm 2 or more and less than 90 kgf / mm 2 , the elongation at break becomes 9 % or more and less than 20%, and the conductivity at 20 ° C. It is desirable to appropriately adjust the diameter of the wire, the heat treatment conditions in the solution treatment, the degree of work in the aging treatment, the heat treatment conditions, and the like according to the alloy composition so that the rate becomes 50% or more.
【0012】第2の発明に係る圧着接続用電線導体は、
1.5〜4.0重量%のNi、0.3〜1.0重量%の
Si、および0.1〜1.0重量%のAgを含み、残部
が銅から本質的になる複数の素線を、導体断面積が0.
03〜0.3mm2 となるように撚り合せてなり、引張
り強さが45kgf/mm2 以上90kgf/mm2未
満であり、破断時の伸び率が8%以上20%未満であ
り、かつ20℃における導電率が53%以上であること
を特徴としている。According to a second aspect of the present invention, there is provided a wire conductor for crimping connection.
A plurality of elements comprising 1.5-4.0% by weight of Ni, 0.3-1.0% by weight of Si, and 0.1-1.0% by weight of Ag, with the balance consisting essentially of copper Wires with a conductor cross section of 0.
It by twisting so as to be 03~0.3Mm 2, tensile strength is less than 45 kgf / mm 2 or more 90 kgf / mm 2, an elongation less than 20% more than 8% at break, and 20 ° C. Is characterized by having a conductivity of 53% or more.
【0013】第2の発明に係る圧着接続用電線導体は、
たとえば、次のようにして製造することができる。1.
5〜4.0重量%のNi、0.3〜1.0重量%のSi
および0.1〜1.0重量%のAgを含み、残部が銅か
ら本質的になる溶湯を調製し、この溶湯から鋳造により
鋳造材を製造する。さらに製造した鋳造材を次工程にお
いて冷間鍛造した後、所定の温度で溶体化処理を施し、
焼き入れ材を製造する。製造した焼き入れ材を中間の直
径サイズにまで伸線し、この中間サイズの線材を所定の
温度で加熱し中間時効処理を施す。この中間時効処理を
施すことで、Agの添加による電線導体の電線強度、端
子圧着部強度の低下を抑えることができる。中間時効処
理後、再度所定の直径サイズまで伸線し、伸線した線材
を複数本撚り合わせて撚線とする。その後、この撚線を
真空中所定の温度で加熱することにより最終時効処理を
施し、圧着接続用電線導体を製造する。According to a second aspect of the present invention, there is provided an electric wire conductor for crimping connection.
For example, it can be manufactured as follows. 1.
5 to 4.0 wt% Ni, 0.3 to 1.0 wt% Si
And a molten metal containing 0.1 to 1.0% by weight of Ag and the balance consisting essentially of copper is prepared, and a casting is produced from the molten metal by casting. Furthermore, after cold-forging the manufactured cast material in the next step, it is subjected to a solution treatment at a predetermined temperature,
Manufacture hardened materials. The manufactured quenched material is drawn to an intermediate diameter size, and the intermediate size wire is heated at a predetermined temperature and subjected to an intermediate aging treatment. By performing the intermediate aging treatment, it is possible to suppress a decrease in the wire strength of the wire conductor and the terminal crimping portion strength due to the addition of Ag. After the intermediate aging treatment, the wire is drawn again to a predetermined diameter size, and a plurality of drawn wires are twisted into a stranded wire. Thereafter, the stranded wire is subjected to a final aging treatment by heating it at a predetermined temperature in a vacuum to produce a wire conductor for crimp connection.
【0014】この際、圧着接続用電線導体の引張り強さ
が最終的に45kgf/mm2 以上90kgf/mm2
未満となり、破断時の伸び率が8%以上20%未満とな
り、かつ20℃における導電率が53%以上となるよう
に合金組成に合わせて適宜素線の直径、溶体化処理にお
ける熱処理条件、中間および最終時効処理における加工
度および熱処理条件が調節されることが望ましい。At this time, the tensile strength of the wire conductor for crimp connection is finally 45 kgf / mm 2 or more and 90 kgf / mm 2.
The diameter of the wire, the heat treatment conditions in the solution treatment, and the intermediate temperature are appropriately adjusted according to the alloy composition so that the elongation at break is 8% or more and less than 20% and the conductivity at 20 ° C. is 53% or more. It is desirable that the degree of work and the heat treatment conditions in the final aging treatment are adjusted.
【0015】[0015]
【作用】第1の発明において、1.5〜4.0重量%の
Niおよび0.4〜0.6重量%のSiを含み、残部が
銅から本質的になる合金組成としたのは、以下の実施例
で示すように、導体の引張り強さが45kgf/mm2
以上90kgf/mm2未満であり、破断時の伸び率が
9%以上20%未満であり、かつ20℃における導電率
が50%以上であるような圧着接続用電線導体を実現す
る上で最も適当な合金組成であることを見出したからで
ある。In the first invention, an alloy composition containing 1.5 to 4.0 % by weight of Ni and 0.4 to 0.6 % by weight of Si and the balance essentially consisting of copper is As shown in the following examples, the tensile strength of the conductor is 45 kgf / mm 2
Is less than 90 kgf / mm 2 and the elongation at break is
This is because it has been found that the alloy composition is most suitable for realizing a wire conductor for crimping connection in which the electric conductivity at 9 ° C. is less than 20% and the electric conductivity at 20 ° C. is 50% or more.
【0016】また、第2の発明において、1.5〜4.
0重量%のNi、0.3〜1.0重量%のSi、および
0.1〜1.0重量%のAgを含み、残部が銅から本質
的になる合金組成としたのは、以下の実施例で示すよう
に、導体の引張り強さが45kgf/mm2 以上90k
gf/mm2 未満であり、破断時の導体の伸び率が8%
以上20%未満であり、さらに20℃における導電率が
向上され、53%以上であるような圧着接続用電線導体
を実現する上で、最も適当な合金組成であることを見出
したからである。Further, in the second invention, 1.5 to 4.
The alloy composition containing 0% by weight of Ni, 0.3 to 1.0% by weight of Si, and 0.1 to 1.0% by weight of Ag, with the balance consisting essentially of copper, was as follows: As shown in the examples, the tensile strength of the conductor is 45 kgf / mm 2 or more and 90 k
gf / mm 2 , and the elongation percentage of the conductor at break is 8%
This is because it has been found that the alloy composition is most suitable for realizing a wire conductor for crimping connection in which the electric conductivity at 20 ° C. is less than 20% and the electric conductivity at 20 ° C. is 53% or more.
【0017】本発明において、導体断面積が0.03〜
0.3mm2 となるようにしたのは、導体断面積が0.
03mm2 未満であればハーネス等の加工時に、端子を
圧着する加工が困難となってしまうからであり、また導
体断面積が0.3mm2 を越えれば重量軽減化の目的に
そぐわなくなってしまうからである。In the present invention, the conductor cross section is 0.03 to 0.03.
The reason why the diameter is set to 0.3 mm 2 is that the conductor cross-sectional area is 0.1 mm.
If it is less than 03Mm 2 during processing of the harness, it is because the machining of crimping the terminal becomes difficult, and because the conductor cross-sectional area becomes Soguwanaku the purpose of weight reduction of it exceeds the 0.3 mm 2 It is.
【0018】また、本発明において、導体の引張り強さ
が45kgf/mm2 以上90kgf/mm2 未満とな
るようにしたのは、導体の引張り強さが45kgf/m
m2未満であれば、細径化した場合自動車用電線として
使用するには十分な強度が得られないからであり、導体
の引張り強さが90kgf/mm2 以上になれば、導体
の伸び率が8%以上20%未満であり、しかも20℃に
おける導電率が50%以上となるように時効処理を施す
ことが工業的に非常に困難となってしまうためである。In the present invention, the reason that the tensile strength of the conductor is 45 kgf / mm 2 or more and less than 90 kgf / mm 2 is that the tensile strength of the conductor is 45 kgf / m 2.
If it is less than m 2, it is because sufficient strength can not be obtained for use as an automotive wire case of smaller diameter, if the tensile strength of the conductor is 90 kgf / mm 2 or more, conductors elongation Is 8% or more and less than 20%, and it is industrially very difficult to perform aging treatment so that the electrical conductivity at 20 ° C. becomes 50% or more.
【0019】さらに、本発明において、破断時の伸び率
が8%以上20%未満となるようにしたのは、導体の伸
び率が8%未満であれば、自動車用電線として用いる際
に必要とされる衝撃に対する電線強度および端子圧着部
強度が得られず、また導体の伸び率が20%以上になれ
ば、導体の引張り強さが45kgf/mm2 未満となっ
てしまうからである。Further, in the present invention, the elongation at break is set to be 8% or more and less than 20%, if the elongation of the conductor is less than 8%, it is necessary to use it as an electric wire for automobiles. This is because the wire strength and the terminal crimping portion strength against the applied shock cannot be obtained, and if the elongation percentage of the conductor is 20% or more, the tensile strength of the conductor becomes less than 45 kgf / mm 2 .
【0020】このように、本発明の圧着接続用電線導体
においては、導体の引張り強さを45kgf/mm2 以
上90kgf/mm2 未満とすることで、自動車用電線
として使用するのに必要とされる十分な強度が提供さ
れ、かつ破断時の伸び率を8%以上20%未満とするこ
とで、所望の電線強度および端子圧着部強度が提供され
る。また、20℃における導体の導電率を50%以上と
することで、自動車用電線として使用するのに必要とさ
れる電気的特性を確保することができる。As described above, in the wire conductor for crimping connection of the present invention, by setting the tensile strength of the conductor to 45 kgf / mm 2 or more and less than 90 kgf / mm 2 , it is necessary to use it as an automobile wire. By providing sufficient strength and elongation at break of 8% or more and less than 20%, desired wire strength and terminal crimping portion strength are provided. Further, by setting the conductivity of the conductor at 20 ° C. to 50% or more, it is possible to secure electrical characteristics required for use as an automobile electric wire.
【0021】本発明においては、Ni−Si−Cu合金
が公知のように時効型合金であるため、1.5〜4.0
重量%のNiおよび0.4〜0.6重量%のSiを含
み、残部が銅から本質的になる合金組成において、時効
処理における加工度および熱処理条件を適宜調整するこ
とによって、所望の機械的特性および電気的特性を兼ね
備えた圧着接続用電線導体を得ることができる。In the present invention, since the Ni--Si--Cu alloy is an aging alloy as is well known, it is 1.5 to 4.0.
In an alloy composition containing 2.5 % by weight of Ni and 0.4 to 0.6 % by weight of Si, with the balance being essentially copper, by appropriately adjusting the workability and heat treatment conditions in the aging treatment, the desired mechanical properties can be obtained. An electric wire conductor for crimp connection having both characteristics and electrical characteristics can be obtained.
【0022】さらに、第2の発明に係る圧着接続用電線
導体では、特に、1.5〜4.0重量%のNi、0.3
〜1.0重量%のSiに加えて、0.1〜1.0重量%
のAgが含まれることで、電線導体の導電率を低下させ
ることなしに、導体の引張り強さをさらに強化すること
ができるようになる。また、中間時効処理を施せば、電
気的特性を高く維持すると同時に、衝撃に対する電線強
度および端子圧着部強度等の機械的特性がさらに改良さ
れた圧着接続用電線導体を得ることができる。Further, in the wire conductor for crimp connection according to the second invention, in particular, 1.5 to 4.0% by weight of Ni, 0.3% by weight.
0.1 to 1.0% by weight in addition to 1.0 to 1.0% by weight of Si
By containing Ag, the tensile strength of the conductor can be further enhanced without lowering the electrical conductivity of the electric wire conductor. Further, by performing the intermediate aging treatment, it is possible to obtain a wire conductor for crimp connection in which electrical characteristics are maintained at a high level and mechanical properties such as the strength of the wire against impact and the strength of the terminal crimp portion are further improved.
【0023】[0023]
実施例1 図3の表中に重量%で示される組成のNi−Si−Cu
合金を溶解、鋳造し、鋳塊とした。直径16mmまで冷
間鍛造した後、950℃で2時間加熱して溶体化処理を
施し、水中焼き入れを行なった。このようにして得られ
た焼き入れ材を所定の直径サイズまで伸線し、素線を作
製した。その後素線を7本撚り合わせ撚線とし、この撚
線を真空中460℃で2時間加熱することにより時効処
理を行い、図1に示すような電線導体を試作した。Example 1 Ni—Si—Cu having a composition shown by weight% in the table of FIG.
The alloy was melted and cast to form an ingot. After cold forging to a diameter of 16 mm, a solution treatment was performed by heating at 950 ° C. for 2 hours, and quenching in water was performed. The quenched material thus obtained was drawn to a predetermined diameter size to prepare a strand. Thereafter, seven strands were twisted into a stranded wire, and the stranded wire was heated at 460 ° C. for 2 hours in a vacuum to perform aging treatment, thereby producing a prototype wire conductor as shown in FIG.
【0024】図3の表中において、本発明例に従う組成
のNi−Si−Cu合金からなる電線導体については本
発明例1〜8に、それ以外の組成のNi−Si−Cu合
金からなる電線導体については比較例1〜4に示した。
また、比較のため従来から自動車用電線として用いられ
ている軟銅を用いたものを従来例として示した。In the table of FIG. 3, the wire conductors made of the Ni--Si--Cu alloy having the composition according to the present invention are shown in Examples 1 to 8 of the present invention, and the electric wires made of the Ni--Si--Cu alloy having the other compositions. The conductors are shown in Comparative Examples 1 to 4.
For comparison, a conventional example using soft copper conventionally used as an automobile electric wire is shown.
【0025】すべての電線導体に対して導体断面積、重
量、導体の引張り強さ、破断時の撚線伸び、20℃にお
ける導電率、電線衝撃値、および端子部衝撃値を測定
し、その結果を図3の表中に示した。Conductor cross-sectional area, weight, conductor tensile strength, stranded elongation at break, conductivity at 20 ° C., electric wire impact value, and terminal impact value were measured for all electric wire conductors. Are shown in the table of FIG.
【0026】図3に示した結果より、本発明例1〜8に
従う電線導体は、細径化されているにもかかわらず、従
来例および比較例1〜4に従う電線導体に比べて、電線
衝撃値および端子部衝撃値が大きくなっており、優れた
電線強度および端子部圧着強度を備えていることがわか
る。From the results shown in FIG. 3, the wire conductors according to Examples 1 to 8 of the present invention are smaller in diameter than the wire conductors according to the conventional example and Comparative Examples 1 to 4 despite having a smaller diameter. Values and terminal part impact values are large, and it can be seen that they have excellent electric wire strength and terminal part crimping strength.
【0027】また、本発明例1〜8に従う電線導体で
は、導電率が50%以上に維持される一方で、導体の引
張り強さが従来例に従う電線導体に比べて大幅に強化さ
れている。このように、本発明例1〜8に従う電線導体
は比較例に従う電線導体に比べて重量が軽減化されてお
り、しかも機械的特性が大幅に改善されている。Further, in the wire conductors according to Examples 1 to 8 of the present invention, while the electrical conductivity is maintained at 50% or more, the tensile strength of the conductor is greatly enhanced as compared with the wire conductor according to the conventional example. As described above, the wire conductors according to Examples 1 to 8 of the present invention are lighter in weight than the wire conductors according to the comparative examples, and the mechanical properties are significantly improved.
【0028】実施例2 本発明に従うNi−Si−Cu合金は公知のように時効
型合金であるため、同一組成でも時効処理における加工
度および熱処理条件を変えることで、電線導体の機械的
特性および電気的特性が変化する。Example 2 Since the Ni-Si-Cu alloy according to the present invention is an aging alloy as is well known, the mechanical properties and the electrical characteristics of the electric wire conductor can be improved by changing the workability and the heat treatment conditions in the aging treatment even with the same composition. The electrical characteristics change.
【0029】そこで、実施例2においては、時効処理に
おける加工度および熱処理条件の影響を見るため、2.
4重量%Niおよび0.6重量%Siを含み、残部がC
uからなる合金を用いて異なる特性に調質した電線導体
を試作した。Therefore, in Example 2, in order to see the effects of the working degree and the heat treatment conditions in the aging treatment, the following were used.
4% Ni and 0.6% Si by weight, with the balance being C
An electric wire conductor tempered to have different characteristics using an alloy made of u was manufactured as a trial.
【0030】すべての電線導体に対して導体断面積、重
量、導体の引張り強さ、破断時の撚線伸び、20℃にお
ける導電率、電線衝撃値、および端子部衝撃値について
測定し、その結果を図4の表中に示した。Conductor cross-sectional area, weight, conductor tensile strength, stranded elongation at break, conductivity at 20 ° C., electric wire impact value, and terminal impact value were measured for all electric wire conductors. Are shown in the table of FIG.
【0031】図4の表中において、導体の引張り強さが
45kgf/mm2 以上90kgf/mm2 未満であ
り、破断時の伸び率が8%以上20%未満であり、かつ
導電率が50%以上である電線導体を本発明例1〜3と
し、それ以外の電線導体を比較例1〜2として示した。In the table of FIG. 4, the tensile strength of the conductor is 45 kgf / mm 2 or more and less than 90 kgf / mm 2 , the elongation at break is 8% or more and less than 20%, and the conductivity is 50% or less. The wire conductors described above are shown as Examples 1 to 3 of the present invention, and the other wire conductors are shown as Comparative Examples 1 and 2.
【0032】本発明例1に従う電線導体は、実施例1と
同じ工程で作製されたものであり、撚線で行なう最終時
効処理の温度を460℃にすることにより得られた。The electric wire conductor according to Example 1 of the present invention was produced in the same process as in Example 1, and was obtained by setting the temperature of the final aging treatment performed by stranded wire to 460 ° C.
【0033】本発明例2に従う電線導体は、撚線までは
実施例1と同じ工程で作製されたものであり、撚線で行
なう最終時効処理の温度を420℃に変更することによ
り得られた。また、本発明例3に従う電線導体は、撚線
までは実施例1と同じ工程で作製されたものであり、撚
線で行なう最終時効処理の温度を500℃に変更するこ
とにより得られた。The wire conductor according to Example 2 of the present invention was manufactured in the same process as in Example 1 up to the stranded wire, and was obtained by changing the temperature of the final aging treatment performed on the stranded wire to 420 ° C. . Further, the wire conductor according to Example 3 of the present invention was manufactured in the same process as in Example 1 up to the stranded wire, and was obtained by changing the temperature of the final aging treatment performed on the stranded wire to 500 ° C.
【0034】図4に示した結果から明らかなように、同
一組成の合金からなる電線導体においても、時効処理に
おける加工度および熱処理条件により、導体の引張り強
さ、破断時の撚線伸び、導電率、電線衝撃値、および端
子部衝撃値が異なり、比較例1〜2に従う電線導体では
重量は軽減化されるものの、電線衝撃値および端子部衝
撃値が従来の電線導体並に低い値に留められている。As is clear from the results shown in FIG. 4, even in a wire conductor made of an alloy having the same composition, the tensile strength of the conductor, the stranded wire elongation at break, Rate, wire impact value, and terminal portion impact value are different, and although the weight is reduced in the wire conductors according to Comparative Examples 1 and 2, the wire impact value and the terminal portion impact value are kept as low as the conventional wire conductor. Have been.
【0035】これに対して、本発明例1〜3に従う電線
導体では、引張り強さを45kgf/mm2 以上90k
gf/mm2 未満とし、破断時の伸び率を8%以上20
%未満とすることで、より大きな電線衝撃値および端子
部衝撃値が得られており、優れた電線強度および端子圧
着部強度を備えていることがわかる。On the other hand, the wire conductors according to Examples 1 to 3 of the present invention have a tensile strength of 45 kgf / mm 2 or more and 90 kF or more.
gf / mm 2 and the elongation at break is 8% or more and 20% or less.
%, A larger wire impact value and a terminal portion impact value are obtained, and it can be seen that the wire has excellent wire strength and terminal crimping portion strength.
【0036】実施例3 次に、導体材料へのAg添加による影響を見るため、
2.4重量%Niおよび0.6重量%Siを含み、残部
がCuからなる合金を用いて、表3に示すようにAgの
添加量を変化させて電線導体を試作した。電線導体作製
時の製造条件(時効処理における加工度および熱処理条
件)は実施例1と同様とした。Example 3 Next, to see the effect of adding Ag to the conductor material,
Using an alloy containing 2.4 wt% Ni and 0.6 wt% Si and the balance being Cu, a wire conductor was prototyped by changing the addition amount of Ag as shown in Table 3. The manufacturing conditions (working degree and heat treatment conditions in the aging treatment) during the production of the wire conductor were the same as those in Example 1.
【0037】図5の表中に示した本発明例1〜4のすべ
ての電線導体に対して導体の引張り強さ、破断時の撚線
伸び、導電率、電線衝撃値、および端子部衝撃値を測定
し、その結果を同表中に示した。With respect to all the wire conductors of Examples 1 to 4 of the present invention shown in the table of FIG. 5, the tensile strength of the conductor, the elongation of the stranded wire at break, the conductivity, the wire impact value, and the terminal impact value Was measured, and the results are shown in the table.
【0038】図5に示した結果からわかることは、Ag
を添加した本発明例1〜3に従う電線導体では、Agを
添加しない本発明例4に比べて、電線衝撃値または端子
部衝撃値がやや小さくなるものの、導体の引張り強さが
さらに強化されている。It can be seen from the results shown in FIG.
In the wire conductors according to Inventive Examples 1 to 3 to which Ag is added, although the wire impact value or the terminal impact value is slightly smaller than that of Inventive Example 4 to which Ag is not added, the tensile strength of the conductor is further enhanced. I have.
【0039】また、本発明例1〜3に従う電線導体で
は、Agが添加されていることで、導体の引張り強さが
強化される一方で、また導電率がAgを添加しない本発
明例4に従う電線導体並に高く維持されている。このよ
うに、Agを少量添加することで、良好な電気的特性を
保ちながら、従来よりさらに機械的特性が向上された電
線導体を得ることができる。In addition, in the wire conductors according to Examples 1 to 3 of the present invention, the addition of Ag enhances the tensile strength of the conductor, while the conductivity is in accordance with Example 4 of the present invention in which Ag is not added. It is kept as high as the wire conductor. As described above, by adding a small amount of Ag, it is possible to obtain a wire conductor with improved mechanical properties as compared with the conventional one while maintaining good electrical properties.
【0040】実施例4 実施例3における電線導体は、実施例1と同じ製造条件
下で作製されたものであり、Agを添加した本発明例1
〜3の導体では、Agを添加しない本発明例4の電線導
体と比べて、Agの添加量が増えるに伴って電線衝撃値
および端子部衝撃値がやや低下する傾向が見られた。Example 4 The electric wire conductor in Example 3 was manufactured under the same manufacturing conditions as in Example 1, and Example 1 of the present invention containing Ag was added.
In the conductors of Nos. 1 to 3, the electric wire impact value and the terminal portion impact value tended to slightly decrease with an increase in the amount of Ag added, as compared with the electric wire conductor of Inventive Example 4 in which Ag was not added.
【0041】そこで、時効処理における加工度および熱
処理条件を変えた場合の導体材料へのAg添加による影
響を見るため、実施例3と同一組成の合金を用いて、図
6の表中に示すようにAgの添加量を変化させて電線導
体を試作した。Therefore, in order to see the effect of the addition of Ag to the conductor material when the working ratio and the heat treatment conditions in the aging treatment were changed, an alloy having the same composition as in Example 3 was used, as shown in the table of FIG. A wire conductor was prototyped by changing the amount of Ag added.
【0042】このときの電線導体作製時の製造条件は次
のとおりとした。表4に重量%で示される量のAgを添
加したNi−Si−Cu合金を溶解、鋳造し、鋳塊とし
た。この鋳塊を直径16mmまで冷間鍛造した後、溶体
化処理を施した。溶体化処理は950℃、2時間加熱
後、水中焼き入れを行なった。このようにして得られた
焼き入れ材をまず0.9mmの直径サイズまで伸線し、
この中間サイズの線材を450℃で2時間加熱すること
により中間時効処理を行なった。その後、再度0.18
mmの直径サイズまで伸線し、伸線した線材を7本撚り
合わせ撚線とした。この撚線を真空中460℃で2時間
加熱することにより最終時効処理を行い、電線導体を試
作した。The manufacturing conditions at the time of producing the electric wire conductor were as follows. A Ni-Si-Cu alloy to which Ag was added in an amount shown in Table 4 by weight% was melted and cast to obtain an ingot. After cold forging the ingot to a diameter of 16 mm, a solution treatment was performed. The solution treatment was performed at 950 ° C. for 2 hours, followed by quenching in water. The quenched material thus obtained was first drawn to a diameter of 0.9 mm,
An intermediate aging treatment was performed by heating the intermediate-sized wire at 450 ° C. for 2 hours. After that, 0.18 again
The wire was drawn to a diameter of mm, and seven drawn wires were stranded to form a stranded wire. This stranded wire was subjected to final aging treatment by heating at 460 ° C. for 2 hours in a vacuum, and a wire conductor was prototyped.
【0043】図6の表中において、上記のようにして得
られた電線導体を本発明例1〜3に示した。また、比較
のため、Agを添加しない電線導体については、実施例
1と同じ製造条件下で作製したものを本発明例4に示し
た。In the table of FIG. 6, the wire conductors obtained as described above are shown in Examples 1 to 3 of the present invention. For comparison, an electric wire conductor to which Ag was not added is shown in Example 4 of the present invention under the same manufacturing conditions as in Example 1.
【0044】図6に示した結果から明らかなように、中
間時効処理を施すことで、Agを添加した本発明例1〜
3に従う電線導体の電線衝撃値および端子部衝撃値が、
Agを添加しない本発明例4に従う電線導体の水準もし
くはそれ以上に向上されている。このように、Agを添
加し、さらに、時効処理における加工度および熱処理条
件を変えることで、高い導電率を保持しかつ引張り強
さ、電線強度、および端子圧着部強度がさらに強化され
た電線導体を得ることができる。As is evident from the results shown in FIG. 6, Examples 1 to 5 of the present invention in which Ag was added by performing an intermediate aging treatment.
The wire impact value and the terminal portion impact value of the wire conductor according to
It is improved to the level of or higher than that of the wire conductor according to Example 4 of the present invention without adding Ag. As described above, by adding Ag, and further changing the degree of work and the heat treatment conditions in the aging treatment, a wire conductor that maintains high electrical conductivity and further enhances tensile strength, wire strength, and terminal crimping portion strength Can be obtained.
【0045】本実施例1〜4に係る電線導体では、引張
り強さ、導電率、電線衝撃値、および端子部衝撃値が向
上されることで、従来の軟銅撚線電線に取って変わる十
分使用可能な電線(図2参照)を提供することができ
る。In the wire conductors according to Examples 1 to 4, the tensile strength, electrical conductivity, wire impact value, and terminal portion impact value are improved, so that the wire conductor can be sufficiently used instead of the conventional soft copper stranded wire. A possible electric wire (see FIG. 2) can be provided.
【0046】[0046]
【発明の効果】以上説明したように、本発明に従う圧着
接続用電線導体は、電線強度および端子圧着部強度が強
化されていることで、導体の細径化により電線重量の軽
減化を図ることができる。As described above, in the wire conductor for crimping connection according to the present invention, the strength of the wire and the strength of the terminal crimping portion are enhanced, thereby reducing the weight of the wire by reducing the diameter of the conductor. Can be.
【0047】本発明に従う圧着接続用電線導体を用いれ
ば、電線重量を軽減化できるだけでなく電線および端子
圧着部に対する衝撃的な荷重に対しても破断しにくい電
線を容易に提供することができる。By using the wire conductor for crimping connection according to the present invention, not only the weight of the wire can be reduced, but also a wire that is hard to be broken by an impact load on the wire and the terminal crimp portion can be easily provided.
【0048】加えて、本発明に従う圧着接続用電線導体
は、Agが添加されることで電気的特性を劣化すること
なくさらに機械的特性が強化されている。したがって、
本発明の圧着接続用電線導体を用いれば、自動車の組立
工程等の苛酷な使用環境にも耐え得る自動車用電線を提
供することができる。In addition, the mechanical properties of the wire conductor for crimping connection according to the present invention are further enhanced by adding Ag without deteriorating the electrical properties. Therefore,
By using the wire conductor for crimping connection of the present invention, it is possible to provide an automobile electric wire that can withstand a severe use environment such as an automobile assembling process.
【図1】本実施例に従う電線導体の断面図である。FIG. 1 is a sectional view of an electric wire conductor according to the present embodiment.
【図2】図1に示した電線導体を絶縁被膜して得られる
電線の断面図である。FIG. 2 is a sectional view of an electric wire obtained by insulatingly coating the electric wire conductor shown in FIG.
【図3】実施例1の電線導体の成分構成とそれに対応す
る性能特性とを表形式にして示した図である。FIG. 3 is a diagram showing, in a table form, a component configuration of a wire conductor of Example 1 and performance characteristics corresponding thereto.
【図4】実施例2の電線導体の成分構成とそれに対応す
る性能特性とを表形式にして示した図である。FIG. 4 is a diagram showing, in a table form, a component configuration of a wire conductor of Example 2 and performance characteristics corresponding thereto.
【図5】実施例3の電線導体の成分構成とそれに対応す
る性能特性とを表形式にして示した図である。FIG. 5 is a diagram showing, in a tabular form, a component configuration of a wire conductor of Example 3 and performance characteristics corresponding thereto.
【図6】実施例4の電線導体の成分構成とそれに対応す
る性能特性とを表形式にして示した図である。FIG. 6 is a diagram showing, in a table form, a component configuration of a wire conductor of Example 4 and performance characteristics corresponding thereto.
1 電線導体 2 素線 1 electric wire conductor 2 strand
───────────────────────────────────────────────────── フロントページの続き (72)発明者 南条 和弘 大阪市此花区島屋一丁目1番3号 住友 電気工業株式会社 大阪製作所内 (56)参考文献 特開 平3−162539(JP,A) 特開 平1−168832(JP,A) 実開 昭58−133215(JP,U) 特公 昭60−30043(JP,B2) (58)調査した分野(Int.Cl.7,DB名) H01B 5/00 - 5/16 C22C 9/00 - 9/10 H01B 1/02 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuhiro Nanjo 1-3-1 Shimaya, Konohana-ku, Osaka Sumitomo Electric Industries, Ltd. Osaka Works (56) References JP-A-3-162539 (JP, A) Kaihei 1-168832 (JP, A) Japanese Utility Model Showa 58-133215 (JP, U) JP-B 60-30043 (JP, B2) (58) Fields investigated (Int. Cl. 7 , DB name) H01B 5 / 00-5/16 C22C 9/00-9/10 H01B 1/02
Claims (2)
4〜0.6重量%のSiを含み、残部が銅から本質的に
なる複数の素線を、導体断面積が0.03〜0.3mm
2となるように撚り合せてなり、引張り強さが45kg
f/mm2以上90kgf/mm2未満であり、破断時の
伸び率が9%以上20%未満であり、かつ20℃におけ
る導電率が50%以上であることを特徴とする圧着接続
用電線導体。1. 1.5 to 4.0% by weight of Ni and 0.1% by weight .
A plurality of wires each containing 4 to 0.6 % by weight of Si and the balance being essentially made of copper, having a conductor cross-sectional area of 0.03 to 0.3 mm
Twisted to make 2 and the tensile strength is 45kg
a wire conductor for crimp connection, having an elongation at break of 9 % or more and less than 20% and an electrical conductivity at 20 ° C. of 50% or more, which is f / mm 2 or more and less than 90 kgf / mm 2. .
1.0重量%のSi、および0.1〜1.0重量%のA
gを含み、残部が銅から本質的になる複数の素線を、導
体断面積が0.03〜0.3mm2となるように撚り合
せてなり、引張り強さが45kgf/mm2以上90k
gf/mm2未満であり、破断時の伸び率が8%以上2
0%未満であり、かつ20℃における導電率が53%以
上であることを特徴とする圧着接続用電線導体。2. 1.5% to 4.0% by weight of Ni, 0.3% to
1.0 wt% Si, and 0.1-1.0 wt% A
comprises g, a plurality of wires and the balance being essentially copper, the conductor cross-sectional area is by twisting so as to be 0.03 to 0.3 mm 2, a tensile strength of 45 kgf / mm 2 or more 90k
gf / mm 2 , and the elongation at break is 8% or more 2
An electric wire conductor for crimping connection, wherein the electric conductivity is less than 0% and the electric conductivity at 20 ° C. is 53% or more.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21271692A JP3156381B2 (en) | 1992-08-10 | 1992-08-10 | Wire conductor for crimp connection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21271692A JP3156381B2 (en) | 1992-08-10 | 1992-08-10 | Wire conductor for crimp connection |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0660722A JPH0660722A (en) | 1994-03-04 |
JP3156381B2 true JP3156381B2 (en) | 2001-04-16 |
Family
ID=16627250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21271692A Expired - Fee Related JP3156381B2 (en) | 1992-08-10 | 1992-08-10 | Wire conductor for crimp connection |
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Country | Link |
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JP (1) | JP3156381B2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5306591B2 (en) * | 2005-12-07 | 2013-10-02 | 古河電気工業株式会社 | Wire conductor for wiring, wire for wiring, and manufacturing method thereof |
JP5520438B2 (en) * | 2006-09-05 | 2014-06-11 | 古河電気工業株式会社 | Wire manufacturing method and wire manufacturing apparatus |
JP5128109B2 (en) * | 2006-10-30 | 2013-01-23 | 株式会社オートネットワーク技術研究所 | Electric wire conductor and manufacturing method thereof |
EP2219193A4 (en) | 2007-11-01 | 2012-07-04 | Furukawa Electric Co Ltd | Conductor material for electronic device and electric wire for wiring using the same |
JPWO2009154239A1 (en) * | 2008-06-17 | 2011-12-01 | 古河電気工業株式会社 | Wire conductor for wiring, wire for wiring, and method for manufacturing wire conductor for wiring |
-
1992
- 1992-08-10 JP JP21271692A patent/JP3156381B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JPH0660722A (en) | 1994-03-04 |
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