JPH0210525B2 - - Google Patents
Info
- Publication number
- JPH0210525B2 JPH0210525B2 JP1243882A JP1243882A JPH0210525B2 JP H0210525 B2 JPH0210525 B2 JP H0210525B2 JP 1243882 A JP1243882 A JP 1243882A JP 1243882 A JP1243882 A JP 1243882A JP H0210525 B2 JPH0210525 B2 JP H0210525B2
- Authority
- JP
- Japan
- Prior art keywords
- copper
- alloy
- core material
- outer covering
- corrosion resistance
- 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
Links
- 239000000463 material Substances 0.000 claims description 32
- 239000011162 core material Substances 0.000 claims description 23
- 230000007797 corrosion Effects 0.000 claims description 22
- 238000005260 corrosion Methods 0.000 claims description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 21
- 239000002131 composite material Substances 0.000 claims description 21
- 229910045601 alloy Inorganic materials 0.000 claims description 19
- 239000000956 alloy Substances 0.000 claims description 19
- 239000004020 conductor Substances 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 229910000570 Cupronickel Inorganic materials 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910017813 Cu—Cr Inorganic materials 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 229910000599 Cr alloy Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- PLZFHNWCKKPCMI-UHFFFAOYSA-N cadmium copper Chemical compound [Cu].[Cd] PLZFHNWCKKPCMI-UHFFFAOYSA-N 0.000 description 1
- ZTXONRUJVYXVTJ-UHFFFAOYSA-N chromium copper Chemical compound [Cr][Cu][Cr] ZTXONRUJVYXVTJ-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- XTYUEDCPRIMJNG-UHFFFAOYSA-N copper zirconium Chemical compound [Cu].[Zr] XTYUEDCPRIMJNG-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Description
【発明の詳細な説明】
本発明は導電性と耐食性に優れた複合導体に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite conductor with excellent electrical conductivity and corrosion resistance.
海水、塩酸、苛性ソーダ等が付着する苛酷な腐
食環境、例えば海岸、工業地帯に対する耐食性に
優れた金属材料としては、従来チタン、ステンレ
ス鋼、キユプロニツケル合金等の材料が挙げられ
た。 Materials such as titanium, stainless steel, and cypronic alloys have conventionally been used as metal materials with excellent corrosion resistance in harsh corrosive environments where seawater, hydrochloric acid, caustic soda, etc. adhere, such as coasts and industrial areas.
しかし導電架線などのような線材として用いる
ためには、チタンは伸線加工性が悪く、高価格で
あり、又ステンレス鋼やキユプロニツケル合金で
は、導電率が銅線に比べて大略1/10以下であり、
導電目的で使用するには、経済的にも、又架線太
さを考えた工事作業性などの点からも不適当であ
つた。 However, in order to use it as a wire material such as a conductive overhead wire, titanium has poor wire drawability and is expensive, and stainless steel and Cypronickel alloy have an electrical conductivity of approximately 1/10 or less than that of copper wire. can be,
It was unsuitable for use for conductive purposes, both economically and in terms of ease of construction work considering the thickness of the overhead wire.
一方、例えば導電率が大略50％IACS以上の導
電性に優れた銅基合金では、いずれも銅線（タフ
ピツチ銅線、無酸素銅線等の電気用銅線を指す）
に比べて、かりに耐食性が改善されたとしても僅
かであり、銅線に比べて導電率が劣ることを考慮
すると、工業的には実用し難いものであつた。 On the other hand, for example, copper-based alloys with excellent conductivity, with a conductivity of approximately 50% IACS or higher, are copper wires (referring to electrical copper wires such as tough pitch copper wires and oxygen-free copper wires).
Even if the corrosion resistance was improved, it was only slight, and considering that the conductivity was inferior to that of copper wire, it was difficult to put it into practical use industrially.
次に、一般に耐食性を向上させる目的で素材に
めつきしたりする場合には、表面のめつき材料に
耐食性の優れた材料を用いる方法と、表層材料を
犠牲陽極として機能させる方法とがある。前者の
方法では、めつき層がそれ自身耐食性に優れてい
ても、一般には微視的に多孔性であるため、又傷
などによつて著しく耐食性が損なわれることがあ
るため、使用環境が苛酷な場合、実用し難い問題
を有していた。又後者の方法では、経時変化が著
しいため、信頼性に欠けることがあつた。 Next, when plating a material for the purpose of improving corrosion resistance, there are two methods: using a material with excellent corrosion resistance as the surface plating material, and using the surface material as a sacrificial anode. In the former method, even if the plating layer itself has excellent corrosion resistance, it is generally microscopically porous and the corrosion resistance may be significantly impaired by scratches, etc., so the use environment is harsh. In such cases, there were problems that made it difficult to put it into practical use. In addition, the latter method sometimes lacks reliability due to significant changes over time.
本発明は、上述の問題点を解決するため成され
たもので、芯材と外被材の特殊な組合せにより、
苛酷な腐食環境に対して、耐食性と導電性を兼ね
そなえた複合導体を提供せんとするものである。 The present invention was made to solve the above-mentioned problems, and by a special combination of core material and outer covering material,
The objective is to provide a composite conductor that has both corrosion resistance and conductivity in a severe corrosive environment.
先ず耐食性の良好な金属により、導電性の中心
構成材料（芯材）を被覆する方法に着目して見る
と、この場合に考慮しなければならない要因とし
て、次のようなものが挙げられる。 First, focusing on a method of covering a conductive central constituent material (core material) with a metal having good corrosion resistance, the following factors must be taken into consideration in this case.
芯材導体材料と外被耐食材料の金属的な密
着：
芯材と外被材の完全な密着が得られないと、
疲労強度等に著しい低下を来す。又この時芯材
と外被材が反応して金属間化合物を生成して
も、複合材料の延性を失なうなどの結果を招
く。 Metallic adhesion between the core conductor material and the outer sheathing material: If complete adhesion between the core conductor material and the outer sheathing material is not achieved,
This causes a significant decrease in fatigue strength, etc. Furthermore, even if the core material and the sheathing material react to form an intermetallic compound at this time, this results in a loss of ductility of the composite material.
芯材導電材料と外被耐食材料の電食：
芯材と外被材の腐食電位が余りに異なると、
複合材料の端面、接続部、不可避的に発生した
傷部などに著しい電食が発生する。 Electrolytic corrosion of conductive core material and corrosion-resistant outer covering material: If the corrosion potentials of the core material and outer covering material are too different,
Significant electrolytic corrosion occurs on the end faces of composite materials, connections, and unavoidable scratches.
複合材料の加工性：
芯材と外被材の変形抵抗などが著しく異なつ
たりすると、複合材料の加工性が劣る。又不適
切な組合せであるような場合、材料加工時に異
常な残留応力を発生し、応力腐食割れなどの問
題を発生する恐れを生じたりする。 Workability of composite materials: If the deformation resistance etc. of the core material and the outer covering material are significantly different, the workability of the composite material will be poor. In addition, if the combination is inappropriate, abnormal residual stress may be generated during material processing, which may lead to problems such as stress corrosion cracking.
複合材料の接続性：
複合材料構成材料が接続性に乏しいと、架線
などの製造上作業性に劣る。 Connectivity of composite materials: If the constituent materials of composite materials have poor connectivity, workability in manufacturing overhead wires etc. will be poor.
本発明者は上述の要因を考慮して、芯材と外被
材の種々の組合せについて検討した結果、本発明
の組合せが最適であることを見出した。 The inventors of the present invention have studied various combinations of core materials and outer covering materials in consideration of the above-mentioned factors, and have found that the combination of the present invention is optimal.
即ち、本発明は、導電率が80％IACS以上の銅
又は銅合金より成る芯材と、その周りに全体に対
する断面積比で５％以上被覆されたニツケル８重
量％以上を含有するキユプロニツケル合金より成
る外被材とより成ることを特徴とする耐食性複合
導体である。 That is, the present invention is made of a Cupro-nickel alloy containing a core material made of copper or copper alloy with an electrical conductivity of 80% IACS or more, and 8% by weight or more of nickel coated around the core material with a cross-sectional area ratio of 5% or more relative to the whole. This is a corrosion-resistant composite conductor characterized by comprising an outer covering material consisting of:
本発明において、芯材を構成する銅又は銅合金
は、導電率が80％IACS以上の、例えばタフピツ
チ銅、無酸素銅、脱酸銅等の銅、又は例えば銀入
銅、カドミウム銅、クロム銅、ジルコニウム銅等
の銅合金である。芯材の導電率が80％IACS未満
では、複合材料としての導電率がさらに低下する
ため、導体材料として好ましくなくなる恐れが生
じる。 In the present invention, the copper or copper alloy constituting the core material is copper having an electrical conductivity of 80% IACS or higher, such as tough pitch copper, oxygen-free copper, deoxidized copper, or silver-containing copper, cadmium copper, chromium copper, etc. , copper alloys such as zirconium copper. If the electrical conductivity of the core material is less than 80% IACS, the electrical conductivity of the composite material will further decrease, and there is a possibility that it will not be suitable as a conductive material.
本発明において、キユプロニツケル合金中のニ
ツケルを８重量％以上と規定したのは、ニツケル
含有量が８重量％未満では、耐食性改善効果が少
なく、複合導体の外被材として不安があるためで
ある。 In the present invention, the reason why the nickel content in the Cypronickel alloy is specified to be 8% by weight or more is because if the nickel content is less than 8% by weight, the effect of improving corrosion resistance is small and there is concern as an outer covering material for a composite conductor.
又外被材の割合を全体に対する断面積比で５％
以上と規定したのは、５％未満では、外被材の厚
さが薄く、不可避的なキズの発生などにより、耐
食性が十分保証できなくなる恐れを生じるためで
ある。 In addition, the proportion of outer covering material is 5% in terms of cross-sectional area of the whole.
The reason for specifying the above value is that if it is less than 5%, the thickness of the outer covering material will be too thin, and there is a risk that corrosion resistance will not be sufficiently guaranteed due to the occurrence of inevitable scratches.
第１図および第２図はそれぞれ本発明の実施例
を示す断面図である。第１図に示すものは、電気
用タフピツチ銅芯材１の周りに、キユプロニツケ
ル合金外被材２を被覆したものであり、第２図に
示すものは、Cu−Cr合金芯材３の周りにキユプ
ロニツケル合金外被材４を被覆したものである。 FIG. 1 and FIG. 2 are sectional views each showing an embodiment of the present invention. The one shown in FIG. 1 has a Cu-Cr alloy outer covering material 2 coated around an electrical tough pitch copper core material 1, and the one shown in FIG. 2 has a Cu-Cr alloy core material 3 wrapped around it. It is coated with a Cupronickel alloy outer covering material 4.
実施例 １
10mmのタフピツチ銅線（導電率100％）に厚
さ0.8mmのNi10.2％を含有するキユプロニツケル
合金（JIS H3251規格、合金番号C7060相当品）
テープを溶接して被覆し、これに伸線と中間軟化
を施して2.6mmに加工し、第１図に示すような
本発明による複合導体を作成した。Example 1 Cypronickel alloy containing 10.2% Ni with a thickness of 0.8 mm in a 10 mm tough pitch copper wire (100% conductivity) (JIS H3251 standard, alloy number C7060 equivalent)
The tape was welded and covered, and then wire-drawn and intermediately softened to form a wire of 2.6 mm, thereby producing a composite conductor according to the present invention as shown in FIG.
この複合導体は、タフピツチ銅芯材１とキユプ
ロニツケル合金外被材が伸線と中間軟化時の加熱
により、完全に密着し、導電率83.5％IACS、引
張強さ45.2Kg／mm2の耐食性に富んだ複合導体であ
つた。外被材２の断面積比は25.7％であつた。 This composite conductor has a tough pitch copper core material 1 and a Cupronickel alloy outer sheath material that are completely bonded together through wire drawing and heating during intermediate softening, and has excellent corrosion resistance with an electrical conductivity of 83.5% IACS and a tensile strength of 45.2 Kg/ mm2 . It was a composite conductor. The cross-sectional area ratio of outer covering material 2 was 25.7%.
実施例 ２
10mmの焼入れ処理したCu−0.7％Cr合金線を
肉厚１mmのNi31.2％を含有するキユプロニツケル
合金（JIS H3251規格、合金番号C7150相当品）
管に挿入し、これを伸線し、途中段階でCu−0.7
％Cr合金の時効と複合材密着のための焼鈍を行
ない、さらに伸線して1.6mmに加工し、第２図
に示すような本発明による複合導体を作成した。Example 2 A 10 mm hardened Cu-0.7% Cr alloy wire with a wall thickness of 1 mm made of a Cypronickel alloy containing 31.2% Ni (JIS H3251 standard, alloy number C7150 equivalent)
Insert it into a pipe, draw it, and add Cu−0.7 in the middle.
The composite conductor according to the present invention as shown in FIG. 2 was produced by aging the %Cr alloy and annealing it to make it adhere to the composite material, and then drawing the wire to 1.6 mm.
この複合導体は導電率63.5％IACS、引張強さ
50.1Kg／mm2の耐食性と耐軟化性に優れた複合導体
であつた。外被材４の断面積比は30.6％であつ
た。又計算より求めた芯材の導電率は89.5％
IACSであつた。 This composite conductor has a conductivity of 63.5% IACS and a tensile strength of
It was a composite conductor with excellent corrosion resistance and softening resistance of 50.1Kg/mm 2 . The cross-sectional area ratio of the outer covering material 4 was 30.6%. Also, the conductivity of the core material determined by calculation is 89.5%.
It was IACS.
以上述べたように、本発明複合導体は、芯材が
導電率80％IACS以上の銅又は銅合金より成るか
ら、導電率が優れ、又その周りに被覆された外被
材が、全体に対する断面積比５％以上で、ニツケ
ル８重量％以上を含有するキユプロニツケル合金
より成るから、海水、塩酸、苛性ソーダ等が付着
する苛酷な環境に対する耐食性が優れ、その上銅
又は銅合金芯材とキユプロニツケル合金外被材の
金属的な密着が容易に得られ、耐疲労性等の機械
的特性が良いので、耐食性と導電性が共に優れ、
かつ製造容易な複合導体を提供する利点があり、
例えば海岸、工業地帯等の導電架線などに最適の
導体を提供するものである。 As described above, the composite conductor of the present invention has excellent electrical conductivity because the core material is made of copper or copper alloy with an electrical conductivity of 80% IACS or higher, and the outer sheath material surrounding the core material has a high electrical conductivity. Since it is made of a Cypronickel alloy with an area ratio of 5% or more and nickel content of 8% or more by weight, it has excellent corrosion resistance in harsh environments where seawater, hydrochloric acid, caustic soda, etc. adhere, and it also has a copper or copper alloy core material and a Cypronickel alloy other than the Cupronickel alloy. It can easily form a metallic adhesion to the material, has good mechanical properties such as fatigue resistance, and has excellent corrosion resistance and conductivity.
It also has the advantage of providing a composite conductor that is easy to manufacture.
For example, it provides an optimal conductor for conductive overhead lines on coastlines, industrial areas, etc.
第１図および第２図はそれぞれ本発明の実施例
を示す断面図である。
１……電気用タフピツチ銅芯材、２，４……キ
ユプロニツケル合金外被材、３……Cu−Cr合金
芯材。
FIG. 1 and FIG. 2 are sectional views each showing an embodiment of the present invention. 1...Electrical tough pitch copper core material, 2, 4...Cupronickel alloy outer covering material, 3...Cu-Cr alloy core material.
Claims (1)
成る芯材と、その周りに全体に対する断面積比で
５％以上被覆されたニツケル８重量％以上を含有
するキユプロニツケル合金より成る外被材とより
成ることを特徴とする耐食性複合導体。1 A core material made of copper or copper alloy with an electrical conductivity of 80% IACS or more, and an outer covering material made of a Cypronickel alloy containing 8% by weight or more of nickel, which is coated around it with a cross-sectional area ratio of 5% or more to the whole. A corrosion-resistant composite conductor characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1243882A JPS58128604A (en) | 1982-01-27 | 1982-01-27 | Composite conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1243882A JPS58128604A (en) | 1982-01-27 | 1982-01-27 | Composite conductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58128604A JPS58128604A (en) | 1983-08-01 |
| JPH0210525B2 true JPH0210525B2 (en) | 1990-03-08 |
Family
ID=11805303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1243882A Granted JPS58128604A (en) | 1982-01-27 | 1982-01-27 | Composite conductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58128604A (en) |
-
1982
- 1982-01-27 JP JP1243882A patent/JPS58128604A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58128604A (en) | 1983-08-01 |
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