JP3036726B2 - Wire harness electric wire - Google Patents
Wire harness electric wireInfo
- Publication number
- JP3036726B2 JP3036726B2 JP6245125A JP24512594A JP3036726B2 JP 3036726 B2 JP3036726 B2 JP 3036726B2 JP 6245125 A JP6245125 A JP 6245125A JP 24512594 A JP24512594 A JP 24512594A JP 3036726 B2 JP3036726 B2 JP 3036726B2
- Authority
- JP
- Japan
- Prior art keywords
- wire
- copper
- wire harness
- diameter
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 26
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 229910000881 Cu alloy Inorganic materials 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 239000002245 particle Substances 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- 239000005751 Copper oxide Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910000431 copper oxide Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Conductive Materials (AREA)
- Non-Insulated Conductors (AREA)
- Insulated Conductors (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はワイヤハーネス用電線、
特に径が０．５mm以下の銅の細線を撚り合わせて得られ
るワイヤハーネス製造用に適した可撓性絶縁被覆電線に
関する。BACKGROUND OF THE INVENTION The present invention relates to an electric wire for a wire harness,
In particular, the present invention relates to a flexible insulated wire suitable for manufacturing a wire harness obtained by twisting fine copper wires having a diameter of 0.5 mm or less.
【０００２】[0002]
【従来の技術】自動車の機能や性能が改良されるに伴っ
て、内部の機器に対する電力配線の他各種の計器や制御
用機器を接続するための信号配線が多量に使用されるに
至っており、これらの各種の配線をまとめて一定の形状
に成形したワイヤハーネスも複雑化が進んでいる。そし
てまた、自動車の軽量化の要求が高まるにつれてワイヤ
ハーネスの軽量化の必要性も高まり、従来よりも一層細
くて引張強度や屈曲強度が高く、かつ高導電率の電線が
求められている。2. Description of the Related Art As the functions and performance of automobiles have been improved, a large amount of signal wiring for connecting various instruments and control devices in addition to power wiring for internal devices has been used. Wire harnesses in which these various wirings are collectively formed into a certain shape are becoming more complicated. Further, as the demand for reducing the weight of automobiles increases, the necessity of reducing the weight of wire harnesses also increases, and there is a demand for wires that are thinner, have higher tensile strength and bending strength, and have higher electrical conductivity than before.
【０００３】ところで細線としても高い強度を維持する
ために銅の合金を使用する方法があるが、銅合金は高純
度の銅に比べて一般に導電率が低下する傾向があって望
ましくない。これに対して補強材を分散させることによ
って材料の強度を高める方法が提案されており、例えば
特公昭５５−３９６１７号には微細に分散した耐熱性金
属酸化物によって母体金属を補強する技術が開示されて
いる。[0003] Incidentally, there is a method of using a copper alloy to maintain a high strength even for a fine wire, but a copper alloy generally has a tendency to lower the conductivity as compared with high-purity copper, which is not desirable. On the other hand, a method of increasing the strength of a material by dispersing a reinforcing material has been proposed. For example, Japanese Patent Publication No. 55-39617 discloses a technique of reinforcing a base metal with a finely dispersed heat-resistant metal oxide. Have been.
【０００４】しかしこの技術によって酸化アルミニウム
で銅を補強した材料は、伸線に際して断線し易いため細
線に引くことが困難であり、通常径が１mm程度までしか
実用化されていない。そして製造能率が低くて断線し易
いことを無視して径が０．８mm以下の電線を製造したと
しても可撓性が不十分であり、ワイヤハーネスとして用
いることができない。そこで電線の可撓性を高めるため
に焼鈍すると引張強度が著しく低下してしまい、結局ワ
イヤハーネスの軽量化という要求に応えうる性能を持つ
細い電線は得られないとされていた。[0004] However, a material reinforced with copper by aluminum oxide by this technique is easily broken at the time of wire drawing, so it is difficult to draw a thin wire, and its diameter is usually only practically about 1 mm. Even if an electric wire having a diameter of 0.8 mm or less is manufactured ignoring that the manufacturing efficiency is low and the wire is easily broken, the flexibility is insufficient and the wire cannot be used as a wire harness. Therefore, if the wire is annealed to increase its flexibility, the tensile strength is remarkably reduced, and as a result, a thin wire having a performance capable of meeting the demand for reducing the weight of the wire harness cannot be obtained.
【０００５】[0005]
【発明が解決しようとする課題】このように従来の技術
では、ワイヤハーネスを製造するための電線を更に細線
化しながら導電性を低下させず、それと同時に電線の強
度と可撓性とを向上させることはできなかった。そこで
本発明は、ワイヤハーネス用電線として使用するに適し
た導電性と強度と可撓性と併せ有し、且つ径が０．５mm
以下の細銅線を提供することを目的とした。As described above, in the prior art, the electric wire for manufacturing the wire harness is made thinner without lowering the conductivity, and at the same time, the strength and flexibility of the electric wire are improved. I couldn't do that. Therefore, the present invention has both conductivity, strength and flexibility suitable for use as a wire harness electric wire, and has a diameter of 0.5 mm.
The purpose was to provide the following fine copper wire.
【０００６】[0006]
【課題を解決するための手段】本発明のワイヤハーネス
用電線は、径が０．５mm以下であって０．２〜１．２重
量％の微細分散酸化アルミニウムを含有する強化銅細線
からなることを特徴とする。The wire for a wire harness according to the present invention comprises a reinforced copper fine wire having a diameter of 0.5 mm or less and containing 0.2 to 1.2% by weight of finely dispersed aluminum oxide. It is characterized by.
【０００７】かかる本発明のワイヤハーネス用電線を製
造するには、特公昭５５−３９６１７号に記載された方
法に準じた改良方法を利用することができる。すなわ
ち、先ず少量のアルミニウムを含有する銅の粉末を酸化
処理してその粒子の表面に酸化銅の層を生成させ、次い
でこの粉末を不活性雰囲気中で熱処理することによりア
ルミニウムによって酸化銅を銅に還元すると同時に微細
に分散した酸化アルミニウムを生成させ、更にこうして
得た酸化アルミニウム含有銅粉末を加圧成形したのち銅
で被覆し、押出加工することにより電線とするものであ
る。In order to manufacture the wire for a wire harness of the present invention, an improved method according to the method described in Japanese Patent Publication No. 55-39617 can be used. That is, first, copper powder containing a small amount of aluminum is oxidized to form a copper oxide layer on the surface of the particles, and then this powder is heat-treated in an inert atmosphere to convert copper oxide into copper with aluminum. At the same time as the reduction, finely dispersed aluminum oxide is formed, and the thus obtained aluminum oxide-containing copper powder is molded under pressure, coated with copper, and extruded to obtain an electric wire.
【０００８】このようにして製造される本発明のワイヤ
ハーネス用電線において、細線の径を０．５mm以下とす
るためには、通常の電線に要求される導電特性の他に特
に強度や伸び特性と製線時の加工性とが重要であり、そ
のために酸化アルミニウムの含量が０．２〜１．２重量
％の範囲内にあることが必要である。酸化アルミニウム
の含量が０．２重量％以下では電線の強度が低下してワ
イヤハーネス用としての要求性能を満たすことが難しく
なり、また酸化アルミニウムの含量が１．２重量％を超
えると伸びが低下するほか細線加工性が著しく悪化し、
効率的な細線の生産が実施できなくなる。[0008] In the wire for a wire harness of the present invention thus manufactured, in order to reduce the diameter of the fine wire to 0.5 mm or less, in addition to the conductive properties required for ordinary wires, particularly strength and elongation properties are required. And the workability at the time of wire drawing are important, and therefore, the content of aluminum oxide needs to be in the range of 0.2 to 1.2% by weight. When the content of aluminum oxide is 0.2% by weight or less, the strength of the electric wire is reduced, and it becomes difficult to satisfy the required performance for a wire harness. When the content of aluminum oxide exceeds 1.2% by weight, elongation is reduced. In addition, fine wire processability deteriorates remarkably,
Efficient thin wire production cannot be implemented.
【０００９】また本発明の細いワイヤハーネス用電線を
製造するためには、前記の押出加工に際して、先ず押出
し比（材料の押出し前断面積と押出し後断面積の比）を
少なくとも２７以上として熱間押出することが必要であ
る。押出し比がこれより小さい場合には、押出し製品の
硬度や物理特性などには大きな差は見られないものの、
更に細線加工するに際して生産効率の点で満足できる加
工性を有する銅粗引き線は得られない。Further, in order to produce the thin wire harness electric wire of the present invention, in the above-mentioned extrusion processing, first, the extrusion ratio (the ratio of the cross-sectional area before the extrusion to the cross-sectional area after the extrusion) is set to at least 27 or more. Extrusion is required. If the extrusion ratio is smaller than this, there is no significant difference in the hardness or physical properties of the extruded product,
Further, when processing fine wires, a copper rough drawn wire having workability satisfactory in terms of production efficiency cannot be obtained.
【００１０】[0010]
【作用】本発明のワイヤハーネス用電線は、断面積が小
さくても充分な導電性を保持しており、また小型のコネ
クタ端子を結合固定して狭小な空間に配索するのに充分
対応できる強度と可撓性とを備えており、軽量化ワイヤ
ハーネスの製造に適した性能を有するものである。The electric wire for a wire harness of the present invention retains sufficient conductivity even if the cross-sectional area is small, and can sufficiently cope with connecting and fixing a small connector terminal in a narrow space. It has strength and flexibility and has performance suitable for manufacturing a lightweight wire harness.
【００１１】[0011]
（実施例１）高純度の銅に対してアルミニウムを配合し
て、０．３５重量％のアルミニウムを含有する銅合金を
得、これを溶融してジェット水流により粉末化し平均粒
径が約２０μｍの粉末銅合金を得た。次いでこの粉末銅
合金を大気中で３００〜３５０℃、１０分間加熱して粉
末粒子の表面を酸化させ、更に酸素分圧が５×１０-5To
rr以下の窒素雰囲気中で７００〜７５０℃、１時間加熱
してアルミニウムをアルミナに転化した。(Example 1) Aluminum was mixed with high-purity copper to obtain a copper alloy containing 0.35% by weight of aluminum, which was melted and powdered by a jet water stream to have an average particle size of about 20 µm. A powdered copper alloy was obtained. Next, the powdered copper alloy is heated in the air at 300 to 350 ° C. for 10 minutes to oxidize the surface of the powder particles, and further, when the oxygen partial pressure is 5 × 10 −5 To
The aluminum was converted to alumina by heating at 700 to 750 ° C. for 1 hour in a nitrogen atmosphere of rr or less.
【００１２】こうして得たアルミナ含有銅粉末を一旦粉
砕し、水素雰囲気中で５００℃、１時間加熱して銅中に
残る酸素を除去したのち、６ｇ／cm3 の密度となるよう
にプレスして成形体とした。そしてこの成形体を真空中
で５００℃で加熱して、水分や吸着ガス等を除去すると
共に焼結し、次いでこの焼結体を無酸素銅製の筒内に挿
入して真空密閉して押出成形用ビレットを得た。The alumina-containing copper powder thus obtained is once pulverized, heated in a hydrogen atmosphere at 500 ° C. for 1 hour to remove oxygen remaining in the copper, and then pressed to a density of 6 g / cm 3. A molded article was obtained. Then, the molded body is heated at 500 ° C. in a vacuum to remove moisture, adsorbed gas, etc., and then sintered. Then, the sintered body is inserted into an oxygen-free copper cylinder, vacuum-sealed, and extrusion molded. A billet was obtained.
【００１３】次に、このビレットを８５０℃に加熱し
て、ダイス温度３００℃、押出し比２７で熱間押出し成
形し、銅粗引き線を得た。こうして得た銅粗引き線を径
１mmまで常法により伸線した銅線について、引張強さ
（N/mm2 ）、伸び（％）、及び導電率（％IACS）を測定
した。また更にこの径１mmの銅線を延伸して径０．４mm
の細線を製造したときの加工性を、断線発生度で評価し
た。これらの結果をまとめて表１に示した。Next, this billet was heated to 850 ° C. and hot-extruded at a die temperature of 300 ° C. and an extrusion ratio of 27 to obtain a copper rough drawn wire. The tensile strength (N / mm 2 ), elongation (%), and electrical conductivity (% IACS) of the copper wire obtained by drawing the rough copper wire thus obtained to a diameter of 1 mm by a conventional method were measured. Further, this copper wire having a diameter of 1 mm is further extended to a diameter of 0.4 mm.
The workability at the time of producing the fine wire was evaluated by the degree of disconnection occurrence. These results are summarized in Table 1.
【００１４】（実施例２）アルミニウム含量が０．３５
重量％のアルミニウム銅合金に代えて、アルミニウム含
量がそれぞれ０．０５、０．１５、０．６０、及び１．
００重量％であるアルミニウム銅合金を用い、実施例１
と同様の方法により銅粗引き線を製造し、更にこれを伸
線して得た径１mmの銅線について実施例１と同様な評価
を行った。その結果を表１に併せて示した。(Example 2) Aluminum content is 0.35
The aluminum content is 0.05, 0.15, 0.60, and 1, respectively, in place of the aluminum copper alloy by weight.
Example 1 using an aluminum copper alloy of 00% by weight
A copper rough drawn wire was manufactured in the same manner as described above, and a copper wire having a diameter of 1 mm obtained by drawing the same was evaluated in the same manner as in Example 1. The results are shown in Table 1.
【００１５】[0015]
【表１】 [Table 1]
【００１６】この結果から、酸化アルミニウムの含量が
０．２重量％より少ないと引張強さが不十分となり、ま
た１．２重量％を超えると伸びが少なくなるほか、更に
細線加工性も低下して径０．５mm以下の細銅線の効率的
な製造が困難となることがわかる。From these results, it can be seen that if the content of aluminum oxide is less than 0.2% by weight, the tensile strength becomes insufficient, and if it exceeds 1.2% by weight, the elongation is reduced and the fine wire processability is further reduced. It can be seen that it is difficult to efficiently manufacture a fine copper wire having a diameter of 0.5 mm or less.
【００１７】本発明は、「径が０．５ｍｍ以下であって
０．２〜１．２重量％の微細分散酸化アルミニウムを含
有する強化銅細線からなるワイヤハーネス用電線」を必
須の構成要件に有することによって、「ワイヤハーネス
用電線として用いるのに適した導電性と強度と可撓性と
を兼ね備えた径が０．５ｍｍ以下の銅細線を提供するこ
とができ、そして、かかる０．５ｍｍ以下の銅細線から
なるワイヤーハーネス用銅電線を高生産性で製造でき、
経済的である」という顕著な効果を奏する。According to the present invention, "an electric wire for a wire harness comprising a reinforced copper fine wire having a diameter of 0.5 mm or less and containing 0.2 to 1.2% by weight of finely dispersed aluminum oxide" is an essential component. By having, it is possible to provide a copper fine wire having a diameter of 0.5 mm or less having both conductivity, strength and flexibility suitable for use as a wire harness electric wire, and such a 0.5 mm or less Copper wire for wire harness consisting of fine copper wire can be manufactured with high productivity,
It is economical. "
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭57−194228（ＪＰ，Ａ) 特公 昭55−39617（ＪＰ，Ｂ２) 特公 平４−19287（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) H01B 7/00 301 C22C 9/00 H01B 1/02 H01B 5/02 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-194228 (JP, A) JP-B-55-39617 (JP, B2) JP-B 4-19287 (JP, B2) (58) Field (Int.Cl. 7 , DB name) H01B 7/00 301 C22C 9/00 H01B 1/02 H01B 5/02
Claims (1)
２重量％の微細分散酸化アルミニウムを含有する強化銅
細線からなることを特徴とするワイヤハーネス用電線。1. The method according to claim 1, wherein the diameter is 0.5 mm or less and 0.2 to 1.
An electric wire for a wire harness, comprising a reinforced copper fine wire containing 2% by weight of finely dispersed aluminum oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6245125A JP3036726B2 (en) | 1994-09-02 | 1994-10-11 | Wire harness electric wire |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20964994 | 1994-09-02 | ||
| JP6-209649 | 1994-09-02 | ||
| JP6245125A JP3036726B2 (en) | 1994-09-02 | 1994-10-11 | Wire harness electric wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08124426A JPH08124426A (en) | 1996-05-17 |
| JP3036726B2 true JP3036726B2 (en) | 2000-04-24 |
Family
ID=26517579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6245125A Expired - Lifetime JP3036726B2 (en) | 1994-09-02 | 1994-10-11 | Wire harness electric wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3036726B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001101929A (en) | 1999-09-30 | 2001-04-13 | Yazaki Corp | Flexible high-strength lightweight conductor |
| JP3978301B2 (en) | 1999-09-30 | 2007-09-19 | 矢崎総業株式会社 | High strength lightweight conductor, stranded wire compression conductor |
| JP3742539B2 (en) | 1999-09-30 | 2006-02-08 | 矢崎総業株式会社 | Metal-coated composite wire manufacturing method and metal-coated composite wire |
| JP4956266B2 (en) * | 2006-08-04 | 2012-06-20 | 住友電気工業株式会社 | Dispersion strengthened copper and manufacturing method thereof, wire drawing material, automotive wire harness |
| JP5295659B2 (en) * | 2008-06-30 | 2013-09-18 | 矢崎総業株式会社 | Wire harness manufacturing jig and method of manufacturing wire harness |
| JP5295660B2 (en) * | 2008-06-30 | 2013-09-18 | 矢崎総業株式会社 | Wire harness manufacturing jig and method of manufacturing wire harness |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5539617B2 (en) | 2006-11-13 | 2014-07-02 | ハウニ・マシイネンバウ・アクチエンゲゼルシヤフト | Storage device and method for reducing local pressure in a storage device |
-
1994
- 1994-10-11 JP JP6245125A patent/JP3036726B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5539617B2 (en) | 2006-11-13 | 2014-07-02 | ハウニ・マシイネンバウ・アクチエンゲゼルシヤフト | Storage device and method for reducing local pressure in a storage device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08124426A (en) | 1996-05-17 |
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