JPH0356633A - Copper alloy for trolley wire - Google Patents

Copper alloy for trolley wire

Info

Publication number
JPH0356633A
JPH0356633A JP19215489A JP19215489A JPH0356633A JP H0356633 A JPH0356633 A JP H0356633A JP 19215489 A JP19215489 A JP 19215489A JP 19215489 A JP19215489 A JP 19215489A JP H0356633 A JPH0356633 A JP H0356633A
Authority
JP
Japan
Prior art keywords
less
50ppm
trolley wire
20ppm
copper alloy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP19215489A
Other languages
Japanese (ja)
Other versions
JP2677875B2 (en
Inventor
Masato Asai
真人 浅井
Shigeo Shinozaki
篠崎 重雄
Kadomasa Sato
佐藤 矩正
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP1192154A priority Critical patent/JP2677875B2/en
Publication of JPH0356633A publication Critical patent/JPH0356633A/en
Application granted granted Critical
Publication of JP2677875B2 publication Critical patent/JP2677875B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To obtain the copper alloy for a trolley wire having excellent current collecting-sliding wear resistance, heat resistance, heat radiating properties and strength by specifying the compsn. constituted of Zr, Cr and Cu and furthermore restricting the content of inevitable impurities such as Sn and Si. CONSTITUTION:The compsn. contg., by weight, 0.001 to 0.15% Zr and 0.01 to 0.30% Cr, furthermore contg., at need, total <=0.5% of one or more kinds among <=0.3% Mg, <=0.5% Zn, <=0.2% Ag and <=0.5% Cd and the balance Cu with inevitable impurities in which the content of Sn is restricted to <=50ppm, Si to <=50ppm, P to <=30ppm, Fe to <=50ppm, Ni to <=50ppm, Pb to <=20ppm, As to <=20ppm, Sb to <=20ppm, Bi to <=20ppm and S to <=10ppm is formed, by which the copper alloy for a trolley wire having various excellent characteristics can be obtd. By using the alloy, a trolley wire suitable to the application at high speed with large capacity can be obtd.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、耐集電摺動磨耗性、耐熱性、放熱性及び強度
が優れたトロリー線用銅合金に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a copper alloy for trolley wires that has excellent current collection sliding wear resistance, heat resistance, heat dissipation properties, and strength.

〔従来の技術〕[Conventional technology]

従来電車線等を代表する運搬輸送用トロリー線としては
、タフピッチ銅を代表とする純銅が用いられてきたが、
高速輸送化の傾向からAg入銅やSn入銅が用いられる
ようになった。しかしながら新叶線を代表とする高速化
した大容量交通手段の発達に伴って、従来材料では機械
的、熱的にトロリー線の損傷、磨耗が著しく、高速集電
性能、高速集電音、保守経費等の而から、その改善が求
められている。
Traditionally, pure copper, typically tough pitch copper, has been used for trolley wires for transportation, such as electric train lines.
Due to the trend toward high-speed transportation, Ag-containing copper and Sn-containing copper have come to be used. However, with the development of high-speed, large-capacity means of transportation, such as the Shinkansen Line, conventional materials have caused significant mechanical and thermal damage and wear to the trolley wire, resulting in high-speed current collection performance, high-speed current collection noise, and maintenance. Improvements are required due to costs and other reasons.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

従来より用いられているAg入銅は、その耐磨粍住の点
で現状の高速化に対応しきれず、また一般に用いられて
いるSn入銅は、耐磨耗性の点でAg入銅より優れてい
るが、高速化、大容量化による磨耗の増加や発熱に伴う
耐熱強度が劣るため、より優れたトロリー線用材料が望
まれている。
The conventionally used Ag-containing copper cannot cope with the current high speeds due to its wear resistance, and the commonly used Sn-containing copper is superior to Ag-containing copper in terms of wear resistance. However, there is a need for a better material for trolley wires because of increased wear due to higher speeds and larger capacities, and poor heat resistance due to heat generation.

[課題を解決するための手段] 本発明はこれに鑑み種々検討の結果、集電摺動磨耗、耐
熱強度、放熱性等に優れた、高速、大容量化に適したト
ロリー線用銅合金を開発したものである。
[Means for Solving the Problems] In view of this, the present invention has developed a copper alloy for trolley wires that has excellent current collection sliding wear, heat resistance strength, heat dissipation properties, etc. and is suitable for high speed and large capacity. It was developed.

即ち本発明合金の一つは、Zr0.001〜0.15w
1%(以下W(%を%と略記) 、C r 0. Of
〜0、30%を含み、残部CuとS n 50ppm以
下、Si50ppm以下、P 30111111以下、
F e 50ppm以下、N i 50ppl以下、p
 b 20ppm以下、A 8 20ppm以下、Sb
2θppnt以下、B i 20ppm以下、SIOp
pm以下に制限した不可避的不純物からなることを特長
とするものである。
That is, one of the alloys of the present invention contains Zr0.001 to 0.15w
1% (hereinafter W (abbreviated as %), C r 0. Of
~0.30%, the remainder Cu and Sn 50ppm or less, Si 50ppm or less, P 30111111 or less,
Fe 50ppm or less, Ni 50ppl or less, p
b 20ppm or less, A 8 20ppm or less, Sb
2θppnt or less, B i 20ppm or less, SIOp
It is characterized by consisting of unavoidable impurities limited to pm or less.

また本発明合金の他の一つは、Zr0.001〜0.1
5%、C r 0. 01〜0. 3%を含み、更にM
g03%以下、Zn0.5%以下、Ag(1.2%以下
、Cd0.5%以下の範囲内で何れか1種又は2種以上
を合計0.5%以下含み、残部CuとSn50ppm以
下、S i 50ppm以下、P 30ppm以下、F
 e 50ppm以下、N i 5Qppm以下、P 
b 20ppn以下、A s 20ppm以下、S b
 20ppm以下、Bi20ppm以下、8 1011
11111以下に制限した不可避的不純物からなること
を特徴とするものである。
Another alloy of the present invention is Zr0.001-0.1
5%, C r 0. 01~0. Contains 3% and further M
G03% or less, Zn0.5% or less, Ag (1.2% or less, Cd 0.5% or less, including any one or more of them in a total of 0.5% or less, the balance being Cu and Sn 50ppm or less, Si 50ppm or less, P 30ppm or less, F
e 50ppm or less, N i 5Qppm or less, P
b 20ppn or less, A s 20ppm or less, S b
20ppm or less, Bi20ppm or less, 8 1011
It is characterized by consisting of unavoidable impurities limited to 11111 or less.

[作 用」 本発明において合金組成を上記の如く限定したのは次の
理山によるものである。
[Function] The reason why the alloy composition in the present invention is limited as described above is due to the following Rizan.

Zr含有量を0. 001 〜0. 15%、Cr含T
=r ffiを0.0l〜0.30%と限定したのは、
Zr,Cr共に銅中に分散粒子として存在することによ
り、耐磨耗性及び耐ハ強度を向上するも、下限未満では
その効果が見られず、上限を越えると耐磨耗性及び耐熱
強度は向上するも、90%1^CS以上の高い導電率が
得られないためである。尚本発明の範囲内では、その分
散粒子が非常に微細に高密度で存在するため、その効果
は高い。
Zr content is 0. 001 ~0. 15%, Cr-containing T
= r ffi was limited to 0.0l~0.30% because
Both Zr and Cr improve abrasion resistance and heat-resistant strength by existing as dispersed particles in copper, but the effect is not seen below the lower limit, and when the upper limit is exceeded, the abrasion resistance and heat-resistant strength decrease. This is because, although it improves, a high conductivity of 90% 1^CS or higher cannot be obtained. Note that within the scope of the present invention, the effect is high because the dispersed particles are very fine and present in high density.

次に不可避的不純物中S n 50ppm1以下、Si
50ppm以下、P 30pllffi以下、F e 
soptn以下、N i 50ppm以下、p b 2
0ppm以下、A s 20ppm以下、S b 20
ppm以下、B i 20ppm以下、Slftppm
以下と制限したのは、本発明の特徴とする高い放熱性を
得るためであり、上記範囲内においては、その影響が少
ないがこれを越えて含ITすると、放熱性を低下するば
かりか、Si,Pは本発明成分のCrと粗大析出物を形
成しやすく、耐摩耗性に寄与するCrfftを減少させ
、その効果を低下させる。またPbSAs,Sb,Bi
SSは、銅中に粗大粒子として存在したり、粒界に濃縮
する事により、熱間加工時の再熱割れや熱間加工割れを
生じたり、トロリー線表面の健全性を損ねる。
Next, in the unavoidable impurities, S n 50 ppm1 or less, Si
50 ppm or less, P 30 pllffi or less, Fe
soptn or less, Ni 50ppm or less, p b 2
0ppm or less, A s 20ppm or less, S b 20
ppm or less, B i 20ppm or less, Slftppm
The reason for limiting it to the following is to obtain high heat dissipation, which is a feature of the present invention. Within the above range, the influence is small, but if IT is included beyond this range, not only will the heat dissipation decrease, but also Si , P tend to form coarse precipitates with Cr, which is a component of the present invention, and reduce Crfft, which contributes to wear resistance, thereby reducing its effectiveness. Also, PbSAs, Sb, Bi
SS exists as coarse particles in copper or concentrates at grain boundaries, causing reheat cracking or hot working cracking during hot working, and impairing the integrity of the surface of the trolley wire.

更にMg0.396以下、Zn0.5%以下、Ag0.
2%以下、Cd[l.5%以下の範囲内で何れか1種又
は2種以上を合計0.5%以下添加するのは、枚熱性を
余り低下させることなく、トロリー線のライフサイクル
を高めるためであり、特にMg,Ag,Cdは耐熱強度
や磨耗性を向上し、Znは耐食性や耐アーク特性を良好
にする。
Furthermore, Mg 0.396 or less, Zn 0.5% or less, Ag 0.
2% or less, Cd[l. The reason for adding one or more of them in a total amount of 0.5% or less within the range of 5% or less is to increase the life cycle of the trolley wire without significantly reducing sheet heat properties. In particular, Mg, Ag and Cd improve heat resistance and abrasion resistance, and Zn improves corrosion resistance and arc resistance.

しかして上銀を越える含百では、その効果が小さく、ま
たfllt意味に放熱性を低下させる。
However, if the content exceeds that of upper silver, the effect will be small and the heat dissipation will be significantly reduced.

尚本発明は熱間による水中押出し法や水冷鋳型を用いた
連続鋳造法により、間接的若しくは直接的に銅合金固溶
体とした後、トロリー線としての加工や軌処理等を施す
In the present invention, a copper alloy solid solution is formed indirectly or directly by a hot underwater extrusion method or a continuous casting method using a water-cooled mold, and then processed into a trolley wire, track treated, etc.

〔実施例〕〔Example〕

以下本発明を実施例により詳細に説明する。 The present invention will be explained in detail below with reference to Examples.

Ar雰囲気中で銅を溶解し、続いてMg,Zn,Ag,
Cdを添加し、更にCrとZrを添加後、十分に撹拌溶
解し、第1表に示す組成の銅合金からなる直径2 0 
O I!lmφの鋳塊に鋳造した。これを約980℃に
加熟し、0.5時問保持した後、熱間水冷押出しを行な
って直径25mmφの荒引線とした。これに表面研削と
冷問伸線と時効熱処理を順次繰り返し行い、断而積17
〇一の溝付トロリー線に加工した。
Copper is melted in an Ar atmosphere, and then Mg, Zn, Ag,
After adding Cd and further adding Cr and Zr, they were sufficiently stirred and dissolved to form a copper alloy with a diameter of 20 mm having the composition shown in Table 1.
O I! It was cast into an ingot of lmφ. This was heated to about 980° C. and held for 0.5 hours, and then hot water-cooled extrusion was performed to obtain a rough wire having a diameter of 25 mmφ. Surface grinding, cold wire drawing, and aging heat treatment are repeated in sequence, resulting in a total of 17
Processed into 〇1 grooved trolley wire.

このトロリー線について、引張強さ、耐熱性、集電摺動
磨耗性及び耐アークf/kを調べた。その結果を第2表
に示す。
This trolley wire was examined for tensile strength, heat resistance, current collection sliding abrasion resistance, and arc resistance f/k. The results are shown in Table 2.

引張強さは、II322241+.:基づき室温(20
℃)で測定した。
The tensile strength is II322241+. :Based on room temperature (20
℃).

放熱性は、その代用特性として導電性をIISH057
5に基づいて測定した。
For heat dissipation, conductivity is used as a substitute for IISH057.
Measured based on 5.

集電摺動磨耗は、供試材を直径5mの円板に環状に設置
し、すり板として銅系焼結合企を取付けたパンタグラフ
を5 kg lの押上げ力により接触させ、交流+00
Aを通電しながら50km/’h+の速度で無潤滑状態
で摺動させ、10万パンタ後の磨耗量を測定した。
Current collector sliding wear was measured by placing the test materials in an annular shape on a disk with a diameter of 5 m, and contacting them with a pantograph equipped with a copper-based sintered composite as a sliding plate with a pushing force of 5 kg l.
A was slid at a speed of 50 km/'h+ without lubrication while energizing, and the amount of wear after 100,000 strokes was measured.

耐アーク性は、銅系焼結合金すり板と供試材間に定常電
流AC50Aを通電し、接触と離線を200回繰り返し
行い、アークを発生させてその時の磨耗量を測定した。
Arc resistance was determined by passing a steady current of 50 A AC between the copper-based sintered metal contact plate and the test material, repeating contact and disconnection 200 times, generating an arc, and measuring the amount of wear at that time.

第1表及び第2表から明らかなうように、本発明合金か
らなるトロリー線は、従来合金からなるトロリー線と比
較し、ほぼ同等の導TX↑ノ1を示し、その他の特性は
はるかに優れていることが分る。
As is clear from Tables 1 and 2, the trolley wire made of the alloy of the present invention exhibits almost the same conductivity TX↑no1 as the trolley wire made of the conventional alloy, and the other characteristics are far superior. I know it's excellent.

これに対し本発明合金の組成範囲から外れる比較方金か
らなるトロリー線では、強度、耐熱ヤし等は優れている
も、導電性が劣る。
On the other hand, a trolley wire made of comparative gold outside the composition range of the alloy of the present invention has excellent strength, heat resistance, etc., but is inferior in electrical conductivity.

[発明の効果] このように本発明によれば、高速、大容徹化に対し集電
摺動耐磨耗性、耐熱性更には族熱性や強度に優れたトロ
リー線を提供できるもので、工業上顕著な効果を奏する
ものである。
[Effects of the Invention] As described above, according to the present invention, it is possible to provide a trolley wire that has excellent current collection sliding wear resistance, heat resistance, heat resistance, and strength for high speed and large capacity. This has a remarkable industrial effect.

Claims (2)

【特許請求の範囲】[Claims] (1)Zr0.001〜0.15wt%、Cr0.01
〜0.30wt%を含み、残部CuとSn50ppm以
下、Si50ppm以下、P30ppm以下、Fe50
ppm以下、Ni50ppm以下、Pb20ppm以下
、As20ppm以下、Sb20ppm以下、Bi20
ppm以下、S10ppm以下に制限した不可避的不純
物からなることを特長とするトロリー線用銅合金。
(1) Zr0.001-0.15wt%, Cr0.01
~0.30wt%, balance Cu and Sn 50ppm or less, Si 50ppm or less, P 30ppm or less, Fe50
ppm or less, Ni50ppm or less, Pb20ppm or less, As20ppm or less, Sb20ppm or less, Bi20
A copper alloy for trolley wires characterized by containing unavoidable impurities limited to ppm or less and S10 ppm or less.
(2)Zr0.001〜0.15wt%、Cr0.01
〜0.30wt%を含み、更にMg0.3wt%以下、
Zn0.5wt%以下、Ag0.2wt%以下、Cd0
.5wt%以下の範囲内で何れか1種又は2種以上を合
計0.5wt%以下含み、残部CuとSn50ppm以
下、Si50ppm以下、P30ppm以下、Fe50
ppm以下、Ni50ppm以下、Pb20ppm以下
、As20ppm以下、Sb20ppm以下、Bi20
ppm以下、S10ppm以下に制限した不可避的不純
物からなることを特長とするトロリー線用銅合金。
(2) Zr0.001-0.15wt%, Cr0.01
~0.30wt%, further Mg0.3wt% or less,
Zn 0.5wt% or less, Ag 0.2wt% or less, Cd0
.. Contains a total of 0.5 wt% or less of any one or more types within a range of 5 wt% or less, the balance being Cu and Sn 50 ppm or less, Si 50 ppm or less, P 30 ppm or less, Fe50
ppm or less, Ni50ppm or less, Pb20ppm or less, As20ppm or less, Sb20ppm or less, Bi20
A copper alloy for trolley wires characterized by containing unavoidable impurities limited to ppm or less and S10 ppm or less.
JP1192154A 1989-07-25 1989-07-25 Copper alloy for trolley wire Expired - Lifetime JP2677875B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1192154A JP2677875B2 (en) 1989-07-25 1989-07-25 Copper alloy for trolley wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1192154A JP2677875B2 (en) 1989-07-25 1989-07-25 Copper alloy for trolley wire

Publications (2)

Publication Number Publication Date
JPH0356633A true JPH0356633A (en) 1991-03-12
JP2677875B2 JP2677875B2 (en) 1997-11-17

Family

ID=16286597

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1192154A Expired - Lifetime JP2677875B2 (en) 1989-07-25 1989-07-25 Copper alloy for trolley wire

Country Status (1)

Country Link
JP (1) JP2677875B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569036A2 (en) * 1992-05-08 1993-11-10 Mitsubishi Materials Corporation Wire for electric railways and method of producing the same
US5705125A (en) * 1992-05-08 1998-01-06 Mitsubishi Materials Corporation Wire for electric railways
EP0888924A2 (en) * 1997-06-30 1999-01-07 Phelps Dodge Industries Inc. Copper trolley wire and a method of manufacturing copper trolley wire
EP0779372B1 (en) * 1995-10-20 2002-06-05 Siemens Aktiengesellschaft Overhead contact wire for high speed electrical railways and process for manufacturing the same
CN104630545A (en) * 2015-02-04 2015-05-20 上海理工大学 High-temperature sliding contact line copper alloy and manufacturing method thereof
WO2021005923A1 (en) * 2019-07-10 2021-01-14 三菱マテリアル株式会社 Copper alloy trolley wire

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56102537A (en) * 1980-01-16 1981-08-17 Toshiba Corp Copper alloy member

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56102537A (en) * 1980-01-16 1981-08-17 Toshiba Corp Copper alloy member

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569036A2 (en) * 1992-05-08 1993-11-10 Mitsubishi Materials Corporation Wire for electric railways and method of producing the same
EP0569036A3 (en) * 1992-05-08 1994-01-19 Mitsubishi Materials Corp
US5391243A (en) * 1992-05-08 1995-02-21 Mitsubishi Materials Corporation Method for producing wire for electric railways
US5705125A (en) * 1992-05-08 1998-01-06 Mitsubishi Materials Corporation Wire for electric railways
EP0779372B1 (en) * 1995-10-20 2002-06-05 Siemens Aktiengesellschaft Overhead contact wire for high speed electrical railways and process for manufacturing the same
US6077364A (en) * 1997-06-30 2000-06-20 Phelps Dodge Industries, Inc. Copper trolley wire and a method of manufacturing copper trolley wire
EP0888924A3 (en) * 1997-06-30 1999-10-06 Phelps Dodge Industries Inc. Copper trolley wire and a method of manufacturing copper trolley wire
US6258187B1 (en) 1997-06-30 2001-07-10 Phelps Dodge Industries, Inc. Copper trolley wire and a method of manufacturing copper trolley wire
EP0888924A2 (en) * 1997-06-30 1999-01-07 Phelps Dodge Industries Inc. Copper trolley wire and a method of manufacturing copper trolley wire
CN104630545A (en) * 2015-02-04 2015-05-20 上海理工大学 High-temperature sliding contact line copper alloy and manufacturing method thereof
WO2021005923A1 (en) * 2019-07-10 2021-01-14 三菱マテリアル株式会社 Copper alloy trolley wire
JP2021014604A (en) * 2019-07-10 2021-02-12 三菱マテリアル株式会社 Copper alloy trolley wire
CN114072530A (en) * 2019-07-10 2022-02-18 三菱综合材料株式会社 Copper alloy overhead line
US20220259701A1 (en) * 2019-07-10 2022-08-18 Mitsubishi Materials Corporation Copper alloy trolley wire

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