JP2007077505A - Cu-Ag ALLOY WIRE, AND Cu-Ag ALLOY WIRE FOR COAXIAL CABLE - Google Patents
Cu-Ag ALLOY WIRE, AND Cu-Ag ALLOY WIRE FOR COAXIAL CABLE Download PDFInfo
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本発明は、銅合金線の直径が０．０８ｍｍ以下の超極細銅合金線、銅合金撚線導体、極細同軸ケーブル、および超極細銅合金線の製造方法に関し、特に、引張強度、伸線性および屈曲性に優れた超極細銅合金線、銅合金撚線導体、極細同軸ケーブル、および超極細銅合金線の製造方法に関する。 The present invention relates to a method for producing an ultrafine copper alloy wire, a copper alloy twisted wire conductor, an ultrafine coaxial cable, and an ultrafine copper alloy wire having a diameter of a copper alloy wire of 0.08 mm or less, and in particular, tensile strength, wire drawability and The present invention relates to a method for producing a super extra fine copper alloy wire, a copper alloy twisted wire conductor, an extra fine coaxial cable, and a super extra fine copper alloy wire having excellent flexibility.
電子機器、ＩＣテスタ、医療機器の小型化に伴い、それらに適用されている機器電線も細径化が進んでいる。特に、医療機器用電線には、ケーブルの外径は従来と同等で線芯数を多くしたケーブルが求められている。現在、実用化されている導体は、４０ＡＷＧ（７／０．０３）が主流であり、不純物濃度が１０ｐｐｍ程度の無酸素銅（ＯＦＣ）をべースにＳｎを微量添加した銅合金線が広く適用されている。 With the miniaturization of electronic devices, IC testers, and medical devices, device wires applied to them are also becoming thinner. In particular, cables for medical devices are required to have a cable with an outer diameter equivalent to that of conventional cables and a larger number of wire cores. Currently, 40 AWG (7 / 0.03) is the mainstream conductor in practical use, and copper alloy wires with a small amount of Sn added to oxygen-free copper (OFC) with an impurity concentration of about 10 ppm are widely used. Has been applied.
従来からダイス加工で線材を伸線する場合、異物による断線と延性破壊による断線が問題となる。 Conventionally, when wire is drawn by die processing, disconnection due to foreign matter and disconnection due to ductile fracture become problems.
異物が原因で断線したサンプルを詳細に分析してみると、異物の混入原因は大きく２つに分けられる。１つは伸線工程中に外部から混入した異物、もう１つは溶解、鋳造時に素材である銅や添加元素に含まれる介在物、あるいはルツボや鋳型の成分であるＳｉＣ、ＳｉＯ2、ＺｒＯ2などの耐火材が剥離して生じる異物である。前者の異物を低減するためには、伸線工程をクリーン化すれば解決できる。しかし、後者の異物を低減するためには、母材を高品質化しなければならない。一方、延性破断については、加工度と密接な関係があることが知られている。加工度が大きい場合、変形抵抗が大きく塑性変形しにくくなるため、延性破断が起こり易くなる。しかし、加工限界に達していない範囲では強度が大きい材料の方が延性破断が起こりにくいため、強度が大きい材料が望まれている。以上のように、超極細線を製造する場合、各工程において細心の注意を払う必要がある。 When the sample that is disconnected due to the foreign matter is analyzed in detail, the cause of the foreign matter is roughly divided into two. One is foreign matter mixed from the outside during the wire drawing process, the other is melting, inclusions contained in copper and additive elements as a material at the time of casting, or SiC, SiO 2 , ZrO 2 as components of crucible and mold It is a foreign material generated by peeling off refractory materials. In order to reduce the former foreign matter, it can be solved by cleaning the wire drawing process. However, in order to reduce the latter foreign matter, the quality of the base material must be improved. On the other hand, it is known that ductile fracture has a close relationship with the processing degree. When the degree of work is large, the deformation resistance is large and plastic deformation is difficult, so that ductile fracture is likely to occur. However, a material having a high strength is desired because a material having a high strength is less susceptible to ductile fracture within a range not reaching the processing limit. As described above, when manufacturing ultrafine wires, it is necessary to pay close attention to each process.
異物による断線の解決を図った従来の極細導体として、例えば、特開平１１−２９３３６５号公報に示されるものがある。 For example, Japanese Patent Application Laid-Open No. 11-293365 discloses a conventional ultrafine conductor that has solved wire breakage due to foreign matter.
この極細導体は、Ａｇを１〜４．５重量％含み、残部がＣｕと不可避不純物からなり、極細導体内に含まれる異物の径を極細導体の径に対して所定の値以下とするものである。これにより、伸線加工や巻線加工で断線しにくい引張強度、伸線性および巻線性を有する極細導体を提供することができる。例えば、極細導体の径が２０μｍの場合は、異物の径を１２μｍ以下にすればよい。 This ultrafine conductor contains 1 to 4.5% by weight of Ag, the remainder is made of Cu and inevitable impurities, and the diameter of the foreign matter contained in the ultrafine conductor is set to a predetermined value or less with respect to the diameter of the ultrafine conductor. is there. As a result, it is possible to provide an ultrafine conductor having tensile strength, wire drawability, and winding properties that are hard to be disconnected by wire drawing or winding. For example, when the diameter of the ultrafine conductor is 20 μm, the diameter of the foreign material may be 12 μm or less.
しかし、従来の極細導体によると、除外すべき異物を径で規定しているため、その規定された径以下の異物の量が多い場合は、伸線加工時に断線し易くなり、屈曲性にも劣る。 However, according to the conventional fine conductor, the diameter of the foreign material to be excluded is specified, so if there is a large amount of foreign material less than the specified diameter, it will be easy to break during wire drawing and bendability Inferior.
従って、本発明の目的は、引張強度、伸線性および屈曲性に優れた超極細銅合金線、銅合金撚線導体、極細同軸ケーブル、および超極細銅合金線の製造方法を提供することにある。 Accordingly, an object of the present invention is to provide a method for producing an ultrafine copper alloy wire, a copper alloy twisted wire conductor, an ultrafine coaxial cable, and an ultrafine copper alloy wire excellent in tensile strength, wire drawability and flexibility. .
本発明は、上記目的を達成するため、０．０８ｍｍ以下の線径を有する超極細銅合金線において、不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度Ｃｕに、純度９９．９９ｍａｓｓ％以上のＡｇを１．０〜５．０ｍａｓｓ％添加した銅合金線によって構成されることを特徴とする超極細銅合金線を提供する。
線径を０．０８ｍｍ以下に規定しているのは、線径が０．０８ｍｍよりも大きい場合、従来の無酸素銅（ＯＦＣ）を母材としても安定して製造できるからである。不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度Ｃｕを用いることにより、母材中に断線の原因となる異物が最小限に抑えられる。高純度ＣｕにＡｇを添加することにより、Ｓｎと比較して導電率をあまり低下させずに引張強度を向上させることができ、延性破壊が起こりにくくなる。Ａｇの純度を９９．９９ｍａｓｓ％以上とすることにより、マトリックスのＣｕの汚染を最小限にすることができる。Ａｇの濃度を１．０〜５．０ｍａｓｓ％に限定したのは、Ａｇ濃度が１．０ｍａｓｓ％未満では、共晶相の晶出量が極めて少ないことから強度の向上効果が乏しいためであり、５．０ｍａｓｓ％を超えると、加工硬化が著しく直径０．０２ｍｍ以下の超極細導体を伸線する場合に中間で熱処理を入れないと加工できなくなるためである。
In order to achieve the above object, the present invention provides an ultra-fine copper alloy wire having a wire diameter of 0.08 mm or less, high purity Cu having a total of inevitable impurities of 1 mass ppm or less, and Ag having a purity of 99.99 mass% or more. Provided is an ultrafine copper alloy wire comprising a copper alloy wire added with 1.0 to 5.0 mass%.
The reason why the wire diameter is regulated to 0.08 mm or less is that when the wire diameter is larger than 0.08 mm, the conventional oxygen-free copper (OFC) can be stably produced even as a base material. By using high-purity Cu having a total of inevitable impurities of 1 mass ppm or less, foreign substances that cause disconnection in the base material can be minimized. By adding Ag to high-purity Cu, the tensile strength can be improved without significantly reducing the electrical conductivity compared to Sn, and ductile fracture is less likely to occur. By making the purity of Ag 99.99 mass% or more, contamination of Cu in the matrix can be minimized. The reason why the Ag concentration is limited to 1.0 to 5.0 mass% is that when the Ag concentration is less than 1.0 mass%, the crystallization amount of the eutectic phase is extremely small, and thus the effect of improving the strength is poor. This is because if it exceeds 5.0 mass%, the work hardening becomes remarkably difficult when the ultrafine conductor having a diameter of 0.02 mm or less is drawn, without being heat-treated in the middle.
本発明は、上記目的を達成するため、０．０８ｍｍ以下の線径を有する超極細銅合金線において、不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度Ｃｕに、純度９９．９９ｍａｓｓ％以上のＡｇを１．０〜５．０ｍａｓｓ％、および純度９９．９ｍａｓｓ％以上のＭｇを０．０１〜０．５ｍａｓｓ％添加した銅合金線によって構成されることを特徴とする超極細銅合金線を提供する。
Ａｇの他に純度９９．９ｍａｓｓ％以上のＭｇを０．０１〜０．５ｍａｓｓ％添加してもよい。Ｍｇを添加したのは、Ａｇは高価であるため、導電率をあまり低下させない添加元素Ｍｇで置きかえることによりＡｇ濃度を低減させるためである。Ｍｇの純度を９９．９ｍａｓｓ％以上に限定したのは、マトリックスのＣｕの汚染を最小限にするためである。Ｍｇの濃度を０．０１〜０．５ｍａｓｓ％に限定しているのは、０．０１ｍａｓｓ％未満では、十分な添加効果が得られないためであり、０．５ｍａｓｓ％を超えると、加工効果が著しく超極細導体を伸線する場合に中間で熱処理を入れないと加工できなくなるためである。
In order to achieve the above object, the present invention provides an ultra-fine copper alloy wire having a wire diameter of 0.08 mm or less, high purity Cu having a total of inevitable impurities of 1 mass ppm or less, and Ag having a purity of 99.99 mass% or more. Provided is an ultrafine copper alloy wire comprising a copper alloy wire added with 0.01 to 0.5 mass% of Mg having a purity of 1.0 to 5.0 mass% and a purity of 99.9 mass% or more.
In addition to Ag, Mg having a purity of 99.9 mass% or more may be added in an amount of 0.01 to 0.5 mass%. The reason why Mg is added is that, because Ag is expensive, the Ag concentration is reduced by replacing it with an additive element Mg that does not significantly lower the conductivity. The reason why the purity of Mg is limited to 99.9 mass% or more is to minimize contamination of the matrix with Cu. The reason why the Mg concentration is limited to 0.01 to 0.5 mass% is that a sufficient addition effect cannot be obtained if the concentration is less than 0.01 mass%. This is because, when a very fine conductor is remarkably drawn, it cannot be processed unless heat treatment is performed in the middle.
本発明は、上記目的を達成するため、０．０８ｍｍ以下の線径を有する超極細銅合金線において、不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度Ｃｕに、純度９９．９９ｍａｓｓ％以上のＡｇを１．０〜５．０ｍａｓｓ％、および純度９９．９９ｍａｓｓ％以上のＩｎを０．０１〜０．３ｍａｓｓ％添加した銅合金線によって構成されることを特徴とする超極細銅合金線を提供する。
Ａｇの他に純度９９．９９ｍａｓｓ％以上のＩｎを０．０１〜０．３ｍａｓｓ％添加してもよい。Ｉｎを添加したのは、Ａｇは高価であるため、導電率をあまり低下させない添加元素Ｉｎで置きかえることによりＡｇ濃度を低減させるためである。Ｉｎの純度を９９．９９ｍａｓｓ％以上に限定したのは、マトリックスのＣｕの汚染を最小限にするためである。Ｉｎの濃度を０．０１〜０．３ｍａｓｓ％に限定したのは、０．０１ｍａｓｓ％未満では、十分な添加効果が得られないためであり、０．３ｍａｓｓ％を超えると、加工効果が著しく超極細導体を伸線する場合に中間で熱処理を入れないと加工できなくなるためである。
In order to achieve the above object, the present invention provides an ultra-fine copper alloy wire having a wire diameter of 0.08 mm or less, high purity Cu having a total of inevitable impurities of 1 mass ppm or less, and Ag having a purity of 99.99 mass% or more. Provided is an ultrafine copper alloy wire comprising a copper alloy wire added with 0.01 to 0.3 mass% of In having a purity of 1.0 to 5.0 mass% and a purity of 99.99 mass% or higher.
In addition to Ag, 0.01 to 0.3 mass% of In having a purity of 99.99 mass% or more may be added. The reason why In is added is that Ag is expensive, and thus the Ag concentration is reduced by replacing it with an additive element In that does not lower the electrical conductivity so much. The reason why the purity of In is limited to 99.99 mass% or more is to minimize contamination of the matrix with Cu. The reason why the concentration of In is limited to 0.01 to 0.3 mass% is that a sufficient addition effect cannot be obtained if the concentration is less than 0.01 mass%. This is because when an ultrafine conductor is drawn, it cannot be processed unless heat treatment is performed in the middle.
前記銅合金線は、Ｓｎめっき、Ａｇめっき、Ｎｉめっき、ＳｎＰｂはんだめっき、Ｓｎ−Ａｇめっき、Ｓｎ−Ｃｕめっき、Ｓｎ−Ａｇ−Ｃｕめっき、あるいはＳｎ−Ａｇ−Ｃｕ−Ｂｉめっきが施されたものでもよい。これにより、合金線が機器電線として使用される場合、耐食性、端末接続性が良好となる。 The copper alloy wire is subjected to Sn plating, Ag plating, Ni plating, SnPb solder plating, Sn-Ag plating, Sn-Cu plating, Sn-Ag-Cu plating, or Sn-Ag-Cu-Bi plating But you can. Thereby, when an alloy wire is used as an apparatus electric wire, corrosion resistance and terminal connectivity become favorable.
本発明は、上記目的を達成するため、０．０８ｍｍ以下の線径を有する複数の銅合金線を撚り合わせた銅合金撚線導体において、前記銅合金線は、不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度Ｃｕに、純度９９．９９ｍａｓｓ％以上のＡｇを１．０〜５．０ｍａｓｓ％添加したことを特徴とする銅合金撚線導体を提供する。
複数の銅合金線を撚り合わせることにより、導体の外径が同じでも曲げひずみを小さくすることができるため、繰り返し屈曲を受ける用途に使用された場合の寿命が長くなる。
In order to achieve the above object, the present invention provides a copper alloy stranded wire conductor obtained by twisting together a plurality of copper alloy wires having a wire diameter of 0.08 mm or less. The copper alloy wire has a total of inevitable impurities of 1 massppm or less. Provided is a copper alloy stranded conductor characterized by adding 1.0 to 5.0 mass% of Ag having a purity of 99.99 mass% or more to the high purity Cu.
By twisting together a plurality of copper alloy wires, the bending strain can be reduced even if the outer diameter of the conductor is the same, so that the life when used in applications that undergo repeated bending is prolonged.
本発明は、上記目的を達成するため、０．０８ｍｍ以下の線径を有する複数の銅合金線を撚り合わせた銅合金撚線導体において、前記銅合金線は、不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度Ｃｕに、純度９９．９９ｍａｓｓ％以上のＡｇを１．０〜５．０ｍａｓｓ％、および純度９９．９ｍａｓｓ％以上のＭｇを０．０１〜０．５ｍａｓｓ％添加したことを特徴とする銅合金撚線導体を提供する。 In order to achieve the above object, the present invention provides a copper alloy stranded wire conductor obtained by twisting together a plurality of copper alloy wires having a wire diameter of 0.08 mm or less. The copper alloy wire has a total of inevitable impurities of 1 massppm or less. A copper characterized by adding 1.0 to 5.0 mass% of Ag with a purity of 99.99 mass% or more and 0.01 to 0.5 mass% of Mg with a purity of 99.9 mass% or more to high purity Cu of An alloy stranded conductor is provided.
本発明は、上記目的を達成するため、０．０８ｍｍ以下の線径を有する複数の銅合金線を撚り合わせた銅合金撚線導体において、前記銅合金線は、不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度Ｃｕに、純度９９．９９ｍａｓｓ％以上のＡｇを１．０〜５．０ｍａｓｓ％、および純度９９．９９ｍａｓｓ％以上のＩｎを０．０１〜０．３ｍａｓｓ％添加したことを特徴とする銅合金撚線導体を提供してもよい。 In order to achieve the above object, the present invention provides a copper alloy stranded wire conductor obtained by twisting together a plurality of copper alloy wires having a wire diameter of 0.08 mm or less. The copper alloy wire has a total of inevitable impurities of 1 massppm or less. A copper characterized by adding 1.0 to 5.0 mass% of Ag having a purity of 99.99 mass% or more and 0.01 to 0.3 mass% of In having a purity of 99.99 mass% or more to high-purity Cu. An alloy stranded conductor may be provided.
本発明は、上記目的を達成するため、０．０８ｍｍ以下の線径を有する銅合金線を中心導体あるいは外層導体に用いた極細同軸ケーブルにおいて、前記銅合金線は、不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度Ｃｕに、純度９９．９９ｍａｓｓ％以上のＡｇを１．０〜５．０ｍａｓｓ％添加したことを特徴とする極細同軸ケーブルを提供する。 In order to achieve the above object, the present invention provides an ultrafine coaxial cable using a copper alloy wire having a wire diameter of 0.08 mm or less as a central conductor or an outer layer conductor, wherein the copper alloy wire has a total mass of inevitable impurities of 1 massppm. Provided is an ultrafine coaxial cable characterized in that 1.0 to 5.0 mass% of Ag having a purity of 99.99 mass% or more is added to the following high purity Cu.
本発明は、上記目的を達成するため、０．０８ｍｍ以下の線径を有する銅合金線を中心導体あるいは外層導体に用いた極細同軸ケーブルにおいて、前記銅合金線は、不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度Ｃｕに、純度９９．９９ｍａｓｓ％以上のＡｇを１．０〜５．０ｍａｓｓ％、および純度９９．９ｍａｓｓ％以上のＭｇを０．０１〜０．５ｍａｓｓ％添加したことを特徴とする極細同軸ケーブルを提供する。 In order to achieve the above object, the present invention provides an ultrafine coaxial cable using a copper alloy wire having a wire diameter of 0.08 mm or less as a central conductor or an outer layer conductor, wherein the copper alloy wire has a total mass of inevitable impurities of 1 massppm. The following high-purity Cu is characterized by adding 1.0 to 5.0 mass% of Ag having a purity of 99.99 mass% or more and 0.01 to 0.5 mass% of Mg having a purity of 99.9 mass% or more. Provide ultra-fine coaxial cable.
本発明は、上記目的を達成するため、０．０８ｍｍ以下の線径を有する銅合金線を中心導体あるいは外層導体に用いた極細同軸ケーブルにおいて、前記銅合金線は、不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度Ｃｕに、純度９９．９９ｍａｓｓ％以上のＡｇを１．０〜５．０ｍａｓｓ％、および純度９９．９９ｍａｓｓ％以上のＩｎを０．０１〜０．３ｍａｓｓ％添加したことを特徴とする極細同軸ケーブルを提供する。 In order to achieve the above object, the present invention provides an ultrafine coaxial cable using a copper alloy wire having a wire diameter of 0.08 mm or less as a central conductor or an outer layer conductor, wherein the copper alloy wire has a total mass of inevitable impurities of 1 massppm. The following high-purity Cu is characterized in that Ag having a purity of 99.99 mass% or more is added in an amount of 1.0 to 5.0 mass%, and In having a purity of 99.99 mass% or more is added in an amount of 0.01 to 0.3 mass%. Provide ultra-fine coaxial cable.
本発明は、上記目的を達成するため、不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度のＣｕを真空中に設置された炭素製のルツボの中で溶解し、溶解した前記Ｃｕの雰囲気をアルゴンガス雰囲気に置換して前記Ｃｕに純度９９．９９ｍａｓｓ％以上のＡｇを１．０〜５．０ｍａｓｓ％添加し、前記Ａｇが添加された前記Ｃｕを炭素製の鋳型を用いて鋳造して荒引線を形成し、前記荒引線を直径０．０８ｍｍ以下に伸線することを特徴とする超極細銅合金線の製造方法を提供する。
炭素製のルツボ、および炭素製の鋳型に限定した理由は、溶解、鋳造時に混入する異物の大半はルツボや鋳型に使用されるセラミックスやセメントの成分であるＳｉＣ、ＳｉＯ2、ＺｒＯ2などが剥離し溶湯中に混入したものだからである。
In order to achieve the above object, the present invention dissolves high purity Cu having a total of inevitable impurities of 1 mass ppm or less in a carbon crucible installed in a vacuum, and the atmosphere of the dissolved Cu is argon gas. Substitute the atmosphere and add 1.0 to 5.0 mass% of Ag with a purity of 99.99 mass% or more to the Cu, and cast the Cu to which the Ag has been added using a carbon mold. A method for producing a super extra fine copper alloy wire is provided, wherein the rough drawn wire is drawn to a diameter of 0.08 mm or less.
The reason for limiting to carbon crucibles and carbon molds is that most of the foreign substances mixed during melting and casting are peeled off from the ceramics and cement components used in the crucibles and molds, such as SiC, SiO 2 and ZrO 2. This is because it is mixed in the molten metal.
本発明は、上記目的を達成するため、不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度のＣｕを真空中に設置された炭素製のルツボの中で溶解し、溶解した前記Ｃｕの雰囲気をアルゴンガス雰囲気に置換して前記Ｃｕに純度９９．９９ｍａｓｓ％以上のＡｇを１．０〜５．０ｍａｓｓ％、および純度９９．９ｍａｓｓ％以上のＭｇを０．０１〜０．５ｍａｓｓ％添加し、前記Ａｇおよび前記Ｍｇが添加された前記Ｃｕを炭素製の鋳型を用いて鋳造して荒引線を形成し、前記荒引線を直径０．０８ｍｍ以下に伸線することを特徴とする超極細銅合金線の製方法を提供する。 In order to achieve the above object, the present invention dissolves high purity Cu having a total of inevitable impurities of 1 mass ppm or less in a carbon crucible installed in a vacuum, and the atmosphere of the dissolved Cu is argon gas. Substituting the atmosphere with 1.0 to 5.0 mass% of Ag having a purity of 99.99 mass% or more and 0.01 to 0.5 mass% of Mg having a purity of 99.9 mass% or more to the Cu, and adding the Ag and The Cu to which the Mg is added is cast using a carbon mold to form a rough drawn wire, and the rough drawn wire is drawn to a diameter of 0.08 mm or less. Provide a method.
本発明は、上記目的を達成するため、不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度のＣｕを真空中に設置された炭素製のルツボの中で溶解し、溶解した前記Ｃｕの雰囲気をアルゴンガス雰囲気に置換して前記Ｃｕに純度９９．９９ｍａｓｓ％以上のＡｇを１．０〜５．０ｍａｓｓ％、および純度９９．９９ｍａｓｓ％以上のＩｎを０．０１〜０．３ｍａｓｓ％添加し、前記Ａｇおよび前記Ｉｎが添加された前記Ｃｕを炭素製の鋳型を用いて鋳造して荒引線を形成し、前記荒引線を直径０．０８ｍｍ以下に伸線することを特徴とする超極細銅合金線の製造方法を提供する。 In order to achieve the above object, the present invention dissolves high purity Cu having a total of inevitable impurities of 1 mass ppm or less in a carbon crucible installed in a vacuum, and the atmosphere of the dissolved Cu is argon gas. Substituting the atmosphere with 1.0 to 5.0 mass% of Ag having a purity of 99.99 mass% or more and 0.01 to 0.3 mass% of In having a purity of 99.99 mass% or more are added to the Cu, and the Ag and Casting of the Cu to which the In is added using a carbon mold to form a rough drawn wire, and drawing the rough drawn wire to a diameter of 0.08 mm or less. Provide a method.
以上説明した通り、本発明によれば、母材中の断線の原因となる異物を最小限に抑えているので、伸線性および屈曲性に優れる。また、Ａｇを添加元素としているので、引張強度に優れる。 As described above, according to the present invention, since the foreign matter that causes the disconnection in the base material is minimized, the wire drawing property and the flexibility are excellent. Moreover, since Ag is an additive element, the tensile strength is excellent.
図１は、本発明の第１の実施の形態に係る極細同軸ケーブルを示す。この極細同軸ケーブルは、撚り合わされた複数の極細銅合金線からなる導体サイズ４４ＡＷＧ（直径０．０２ｍｍの７本撚り）の中心導体１と、この中心導体１の周囲に形成され、中心導体１を絶縁するための絶縁体２と、絶縁体２の周囲に形成され、直径０．０２ｍｍの極細銅合金線からなるノイズを除去するための横巻きシールド線３と、横巻きシールド線３の周囲に形成されたジャケット４とを備える。絶縁体２は、例えば、充実フッ素樹脂、具体的にはＦＥＰ，ＰＦＡ，ＥＴＦＥ等を用いることができ、外径は直径０．１１５ｍｍ、肉厚は０．０６ｍｍである。ジャケット４は、例えばＰＥＴからなり、外径は直径０．２１５ｍｍ、肉厚は０．０２ｍｍである。
FIG. 1 shows a micro coaxial cable according to a first embodiment of the present invention. This ultrafine coaxial cable is formed around a
中心導体１および横巻きシールド線３に用いられる極細銅合金線の材料としては、Ａｇめっきが施された不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度Ｃｕに純度９９．９９ｍａｓｓ％以上のＡｇ，Ｍｇ，Ｉｎ等の元素を添加したもの、例えば、Ｃｕ−１．０〜５．０ｍａｓｓ％Ａｇ、Ｃｕ−１．０〜５．０ｍａｓｓ％Ａｇ−０．０１〜０．０５ｍａｓｓ％Ｍｇ、あるいはＣｕ−０．０１〜０．３ｍａｓｓ％Ｉｎ等を用いることができる。
As the material of the ultrafine copper alloy wire used for the
この極細銅合金線合金線は、例えば、次のようにして製造される。ここでは、Ｃｕ−１．０〜５．０ｍａｓｓ％Ａｇからなる合金線について説明する。まず、不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度Ｃｕについて酸洗いを行い、表面に付着した異物を除去した後、炭素製のルツボにセットし、小型の連続鋳造設備で真空溶解する。Ｃｕが完全に溶解した後、チャンバー内をアルゴンガスで置換し、純度９９．９９ｍａｓｓ％以上のＡｇを１．０〜５．０ｍａｓｓ％添加する。Ａｇが完全に溶解した後１０分間保持し、炭素製の鋳型を用いて連続鋳造を行って直径０．０８ｍｍの荒引線を製造する。その荒引線を直径０．０２ｍｍまで伸線する。このようにして超極細銅合金線を製造する。 This ultrafine copper alloy wire alloy wire is manufactured as follows, for example. Here, an alloy wire made of Cu-1.0 to 5.0 mass% Ag will be described. First, pickling is performed on high-purity Cu having a total sum of unavoidable impurities of 1 mass ppm or less to remove foreign substances adhering to the surface, and then set in a carbon crucible and vacuum-dissolved in a small continuous casting facility. After Cu is completely dissolved, the inside of the chamber is replaced with argon gas, and Ag having a purity of 99.99 mass% or more is added in an amount of 1.0 to 5.0 mass%. After Ag is completely dissolved, it is held for 10 minutes, and continuous casting is performed using a carbon mold to produce a rough drawn wire having a diameter of 0.08 mm. The rough drawn wire is drawn to a diameter of 0.02 mm. In this way, a super fine copper alloy wire is manufactured.
上述した第１の実施の形態によれば、母材中に断線の原因となる異物が最小限に抑えられた超極細銅合金線により中心導体１および横巻きシールド線３を構成しているので、伸線工程で断線が起こりにくいため、生産性の向上が図れ、屈曲性の優れた極細同軸ケーブルを提供することができる。
According to the first embodiment described above, the
図２は、本発明の第２の実施の形態に係る極細同軸ケーブルを示す。この極細同軸ケーブルは、第１の実施の形態において、中心導体１に第１の実施の形態と同様に製造された直径０．０６ｍｍの超極細銅合金からなる単線導体を用いたものであり、他は第１の実施の形態と同様に構成されている。この第２の実施の形態によれば、第１の実施の形態と比較して屈曲性に劣るが、第１の実施の形態と同様に伸線工程で断線が起こりにくいため、生産性の向上が図れる。
FIG. 2 shows a micro coaxial cable according to the second embodiment of the present invention. In the first embodiment, this ultrafine coaxial cable uses a single-wire conductor made of a superfine copper alloy having a diameter of 0.06 mm manufactured in the same manner as in the first embodiment for the
＜実施例１，２＞
本発明の実施例１，２の超極細銅合金線の製造方法について説明する。母材の高純度銅（Ｃｕ：９９．９９９９ｍａｓｓ％）について酸洗いを行い、表面に付着した異物を除去した後、炭素製のルツボにセットし、小型の連続鋳造設備で真空溶解した。Ｃｕが完全に溶解した後、チャンバー内をアルゴンガスで置換し、Ａｇ（純度９９．９９ｍａｓｓ％）を２ｍａｓｓ％（実施例１）、又は５ｍａｓｓ％（実施例２）添加した。Ａｇが完全に溶解した後１０分間保持し、炭素製の鋳型を用いて連続鋳造を行って直径８．０ｍｍの荒引線を製造した。その荒引線を直径０．０２ｍｍまで伸線した。
<Examples 1 and 2>
The manufacturing method of the extra fine copper alloy wire of Examples 1 and 2 of the present invention will be described. High purity copper (Cu: 99.9999 mass%) as a base material was pickled to remove foreign substances adhering to the surface, set in a carbon crucible, and vacuum-dissolved in a small continuous casting facility. After Cu was completely dissolved, the inside of the chamber was replaced with argon gas, and Ag (purity 99.99 mass%) was added 2 mass% (Example 1) or 5 mass% (Example 2). After Ag was completely dissolved, it was held for 10 minutes, and continuous casting was performed using a carbon mold to produce a rough drawn wire having a diameter of 8.0 mm. The rough drawn wire was drawn to a diameter of 0.02 mm.
＜実施例３〜６＞
本発明の実施例３〜６の超極細銅合金線の製造方法について説明する。母材の高純度銅（Ｃｕ：９９．９９９９ｍａｓｓ％）について酸洗いを行い、表面に付着した異物を除去した後、炭素製のルツボにセットし、小型の連続鋳造設備で真空溶解した。Ｃｕが完全に溶解した後、チャンバー内をアルゴンガスで置換し、Ａｇ（純度９９．９９ｍａｓｓ％）を２ｍａｓｓ％（実施例３，４）、又は５ｍａｓｓ％（実施例５，６）添加した。Ａｇが完全に溶解した後１０分間保持し、Ｍｇ（純度９９．９ｍａｓｓ％）を０．０５ｍａｓｓ％（実施例３，５）、又は０．２ｍａｓｓ％（実施例４，６）添加し、さらに１０分間保持した。その後、炭素製の鋳型を用いて連続鋳造を行って直径８．０ｍｍの荒引線を製造した。その荒引線を直径０．０２ｍまで伸線した。
<Examples 3 to 6>
The manufacturing method of the super extra fine copper alloy wire of Examples 3-6 of the present invention is explained. High purity copper (Cu: 99.9999 mass%) as a base material was pickled to remove foreign substances adhering to the surface, set in a carbon crucible, and vacuum-dissolved in a small continuous casting facility. After Cu was completely dissolved, the inside of the chamber was replaced with argon gas, and 2 mass% (Examples 3 and 4) or 5 mass% (Examples 5 and 6) of Ag (purity 99.99 mass%) was added. After Ag is completely dissolved, it is kept for 10 minutes, and 0.05 mass% (Examples 3 and 5) or 0.2 mass% (Examples 4 and 6) of Mg (purity 99.9 mass%) is added. Hold for a minute. Thereafter, continuous casting was performed using a carbon mold to produce a rough drawn wire having a diameter of 8.0 mm. The rough drawn wire was drawn to a diameter of 0.02 m.
＜実施例７〜１０＞
本発明の実施例７〜１０の超極細銅合金線の製造方法について説明する。母材の高純度銅（Ｃｕ：９９．９９９９ｍａｓｓ％）について酸洗いを行い、表面に付着した異物を除去した後、炭素製のルツボにセットし、小型の連続鋳造設備で真空溶解した。Ｃｕが完全に溶解した後、チャンバー内をアルゴンガスで置換し、Ａｇ（純度９９．９９ｍａｓｓ％）を２ｍａｓｓ％（実施例７，８）、又は５ｍａｓｓ％（実施例９，１０）添加した。Ａｇが完全に溶解した後１０分間保持し、Ｉｎ（純度９９．９９ｍａｓｓ％）を０．０１ｍａｓｓ％（実施例７，９）、又は０．１ｍａｓｓ％（実施例８，１０）添加し、さらに１０分間保持した。その後、炭素製の鋳型を用いて連続鋳造を行って直径８．０ｍｍの荒引線を製造した。その荒引線を直径０．０２ｍｍまで伸線した。
<Examples 7 to 10>
The manufacturing method of the super extra-fine copper alloy wire of Examples 7-10 of this invention is demonstrated. High purity copper (Cu: 99.9999 mass%) as a base material was pickled to remove foreign substances adhering to the surface, set in a carbon crucible, and vacuum-dissolved in a small continuous casting facility. After Cu was completely dissolved, the inside of the chamber was replaced with argon gas, and 2 mass% (Examples 7 and 8) or 5 mass% (Examples 9 and 10) of Ag (purity 99.99 mass%) was added. After Ag was completely dissolved, it was kept for 10 minutes, and In (purity 99.99 mass%) was added 0.01 mass% (Examples 7 and 9) or 0.1 mass% (Examples 8 and 10). Hold for a minute. Thereafter, continuous casting was performed using a carbon mold to produce a rough drawn wire having a diameter of 8.0 mm. The rough drawn wire was drawn to a diameter of 0.02 mm.
＜比較例１＞
比較例１の超極細銅合金線の製造方法について説明する。無酸素銅（Ｃｕ：９９．９９ｍａｓｓ％）をＳｉＣ等の材質で作られているルツボ中で大気溶解した後、Ｓｎ（純度９９．９ｍａｓｓ％）を０．３ｍａｓｓ％添加して１０分間保持した後、連続鋳造・圧延を行って直径１１．０ｍｍの荒引線を製造した。その荒引線を直径０．０２ｍｍまで伸線した。
<Comparative Example 1>
A method for manufacturing the ultrafine copper alloy wire of Comparative Example 1 will be described. After oxygen-free copper (Cu: 99.99 mass%) is dissolved in the atmosphere in a crucible made of SiC or the like, Sn (purity 99.9 mass%) is added at 0.3 mass% and held for 10 minutes. Then, continuous casting and rolling were performed to produce a rough drawn wire having a diameter of 11.0 mm. The rough drawn wire was drawn to a diameter of 0.02 mm.
＜比較例２，３＞
比較例２，３の超極細銅合金線の製造方法について説明する。無酸素銅（Ｃｕ：９９．９９ｍａｓｓ％）をＳｉＣ等の材質で作られているルツボ中で大気溶解した後、Ａｇ（純度９９．９９ｍａｓｓ％）を２ｍａｓｓ％（比較例２）、又は５ｍａｓｓ％（比較例３）添加して１０分間保持した後、連続鋳造圧延を行って直径１１．０ｍｍの荒引線を製造した。その荒引線を直径０．０２ｍｍまで伸線した。
<Comparative Examples 2 and 3>
A method for manufacturing the ultrafine copper alloy wire of Comparative Examples 2 and 3 will be described. After oxygen-free copper (Cu: 99.99 mass%) is dissolved in the atmosphere in a crucible made of a material such as SiC, Ag (purity 99.99 mass%) is 2 mass% (Comparative Example 2), or 5 mass% ( Comparative Example 3) After adding and holding for 10 minutes, continuous cast rolling was performed to produce a rough drawn wire having a diameter of 11.0 mm. The rough drawn wire was drawn to a diameter of 0.02 mm.
＜比較例４〜７＞
比較例４〜７の超極細銅合金線の製造方法について説明する。無酸素銅（Ｃｕ：９９．９９ｍａｓｓ％）をＳｉＣ等の材質で作られているルツボ中で大気溶解した後、Ａｇ（純度９９．９９ｍａｓｓ％）を２ｍａｓｓ％（比較例４，５）、又は５ｍａｓｓ％（比較例６，７）添加して１０分間保持した後、Ｍｇ（純度９９．９ｍａｓｓ％）を０．０５ｍａｓｓ％（比較例４，６）、又は０．２ｍａｓｓ％（比較例５，７）添加し、さらに１０分間保持した。その後、連続鋳造・圧延を行って荒引き線を製造した。その荒引き線を伸線した際に炉材の混入が原因で断線が多発したため検討を中止した。
<Comparative Examples 4-7>
The manufacturing method of the ultra fine copper alloy wire of Comparative Examples 4-7 is demonstrated. Oxygen-free copper (Cu: 99.99 mass%) is dissolved in the atmosphere in a crucible made of a material such as SiC, and then Ag (purity 99.99 mass%) is 2 mass% (Comparative Examples 4 and 5) or 5 mass. % (Comparative Examples 6 and 7) and maintained for 10 minutes, Mg (purity 99.9 mass%) is 0.05 mass% (Comparative Examples 4 and 6), or 0.2 mass% (Comparative Examples 5 and 7). Added and held for an additional 10 minutes. Thereafter, continuous drawing and rolling were performed to produce a rough drawn wire. When the rough wire was drawn, the investigation was stopped because of frequent disconnections due to the mixing of furnace materials.
＜比較例８〜１１＞
比較例８〜１１の超極細銅合金線の製造方法について説明する。無酸素銅（Ｃｕ：９９．９９ｍａｓｓ％）をＳｉＣ等の材質で作られているルツボ中で大気溶解した後、Ａｇ（純度９９，９９ｍａｓｓ％）を２ｍａｓｓ％（比較例８，９）、又は５ｍａｓｓ％（比較例１０，１１）添加して１０分間保持した後、Ｉｎ（純度９９．９９ｍａｓｓ％）を０．０１ｍａｓｓ％（比較例８，１０）、又は０．１ｍａｓｓ％（比較例９，１１）添加し、さらに１０分間保持した。その後、連続鋳造・圧延を行った際に荒引き線の表面に深い傷が入ったため、超極細線の母材として不適切と判断し検討を中止した。
<Comparative Examples 8-11>
The manufacturing method of the super extra fine copper alloy wire of Comparative Examples 8-11 is demonstrated. Oxygen-free copper (Cu: 99.99 mass%) is dissolved in the atmosphere in a crucible made of a material such as SiC, and then Ag (purity 99, 99 mass%) is 2 mass% (Comparative Examples 8 and 9) or 5 mass. % (Comparative Examples 10 and 11) and held for 10 minutes, In (purity 99.99 mass%) is 0.01 mass% (Comparative Examples 8 and 10), or 0.1 mass% (Comparative Examples 9 and 11). Added and held for an additional 10 minutes. Later, when continuous casting / rolling was performed, the surface of the roughing wire was deeply damaged, so it was determined that it was inappropriate as a base material for ultrafine wire, and the study was stopped.
上記超極細銅合金線について、直径０．０２ｍｍに伸線したときの引張強度（ＭＰａ）、および導電率（％ＩＡＣＳ）、２０ｋｇ伸線したときの１断線あたりの伸線量（ｋｇ／ｂｒｅａｋ）を測定した。 For the above ultra-fine copper alloy wire, the tensile strength (MPa) when drawn to a diameter of 0.02 mm, the electrical conductivity (% IACS), and the drawing dose (kg / break) per break when drawn by 20 kg It was measured.
表１は、その測定結果を示す。
表２は、その試験結果を示す。
また、表２から明らかなように、本実施例の超極細銅合金線を用いた極細同軸ケーブルの屈曲寿命は、従来のＣｕ−０．３ｍａｓｓ％Ｓｎを用いたものに比べて５０％以上向上することが確認された。
Table 2 shows the test results.
Further, as is apparent from Table 2, the bending life of the ultra-fine coaxial cable using the ultra-fine copper alloy wire of this example is improved by 50% or more compared to the conventional one using Cu-0.3 mass% Sn. Confirmed to do.
なお、導体として、上記実施例の超極細銅合金線からなる導体について熱処理を行い、伸びを５％以上に調整したものを用いてもよい。
また、導体として、高純度Ｃｕ（９９．９９９９ｍａｓｓ％）にＣｒ，Ｆｅ，Ｎｂ等を添加した繊維強化型金属にＭｇ，Ｉｎを微量添加し、超極細サイズまで伸線した導体を用いてもよい。
In addition, as a conductor, you may use what heat-processed about the conductor which consists of the ultra-fine copper alloy wire of the said Example, and adjusted elongation to 5% or more.
Further, as a conductor, a conductor obtained by adding a trace amount of Mg and In to a fiber reinforced metal obtained by adding Cr, Fe, Nb or the like to high-purity Cu (99.9999 mass%) and drawing to an ultrafine size may be used. .
１ 中心導体
２ 絶縁体
３ 横巻きシールド線
４ ジャケット
1
Claims (4)
該同軸ケーブル用Ｃｕ−Ａｇ合金線は、不可避不純物の総和が１ ｍａｓｓｐｐｍ以下の高純度Ｃｕに、純度９９．９９ｍａｓｓ％以上のＡｇを１．０〜５．０ｍａｓｓ％添加した銅合金によって構成されるものであり、
該同軸ケーブルに１００ｇｆの荷重をかけ、曲げｒ＝１ｍｍ、速度３０ｃｙｃｌｅ／ｍｉｎの条件で左右９０度の屈曲試験を行った場合の屈曲寿命が３８０回〜４４０回であることを特徴とする同軸ケーブル用Ｃｕ−Ａｇ合金線。 A coaxial cable comprising a central conductor made of a single wire, an insulator covering the periphery of the center conductor, and an outer conductor covering the periphery of the insulator, the coaxial cable used for the center conductor and the outer conductor Cu-Ag alloy wire for
The Cu-Ag alloy wire for coaxial cable is made of a copper alloy in which 1.0 to 5.0 mass% of Ag having a purity of 99.99 mass% or more is added to high purity Cu having a total of inevitable impurities of 1 massppm or less. Is,
A coaxial cable having a bending life of 380 to 440 times when a load of 100 gf is applied to the coaxial cable, and a bending test of 90 degrees to the left and right is performed under conditions of bending r = 1 mm and speed 30 cycles / min. Cu-Ag alloy wire for use.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2019061775A (en) * | 2017-09-25 | 2019-04-18 | 住友電気工業株式会社 | Coaxial wire and multicore cable |
| CN113789451A (en) * | 2021-09-13 | 2021-12-14 | 江西云泰铜业有限公司 | Preparation method of silver-copper alloy wire |
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| JPH01159338A (en) * | 1987-12-15 | 1989-06-22 | Fujikura Ltd | Copper wire rod for extra fine wire |
| JPH02263939A (en) * | 1989-04-03 | 1990-10-26 | Nippon Mining Co Ltd | High conductivity and high heat-resistant copper alloy and its manufacture |
| JPH11293365A (en) * | 1998-04-09 | 1999-10-26 | Furukawa Electric Co Ltd:The | Super-fine conductor for winding, and its manufacture |
| JP2000169918A (en) * | 1998-12-04 | 2000-06-20 | Fujikura Ltd | Extra-thin wire and its production |
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| JPH01159338A (en) * | 1987-12-15 | 1989-06-22 | Fujikura Ltd | Copper wire rod for extra fine wire |
| JPH02263939A (en) * | 1989-04-03 | 1990-10-26 | Nippon Mining Co Ltd | High conductivity and high heat-resistant copper alloy and its manufacture |
| JPH11293365A (en) * | 1998-04-09 | 1999-10-26 | Furukawa Electric Co Ltd:The | Super-fine conductor for winding, and its manufacture |
| JP2000169918A (en) * | 1998-12-04 | 2000-06-20 | Fujikura Ltd | Extra-thin wire and its production |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2019061775A (en) * | 2017-09-25 | 2019-04-18 | 住友電気工業株式会社 | Coaxial wire and multicore cable |
| CN113789451A (en) * | 2021-09-13 | 2021-12-14 | 江西云泰铜业有限公司 | Preparation method of silver-copper alloy wire |
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