WO2013105475A1 - 銅合金、及び銅合金線 - Google Patents
銅合金、及び銅合金線 Download PDFInfo
- Publication number
- WO2013105475A1 WO2013105475A1 PCT/JP2012/084190 JP2012084190W WO2013105475A1 WO 2013105475 A1 WO2013105475 A1 WO 2013105475A1 JP 2012084190 W JP2012084190 W JP 2012084190W WO 2013105475 A1 WO2013105475 A1 WO 2013105475A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- copper alloy
- strength
- conductivity
- wire
- heat treatment
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Definitions
- the present invention relates to a copper alloy used for a contact member or the like, and a copper alloy wire.
- the present invention relates to a copper alloy that achieves both high strength and high electrical conductivity.
- contact member used for electrical connection between electric / electronic devices and electric wires, electric connection between electric wires, etc., contact parts of connectors (pins, casings of a predetermined shape, etc.), terminal fittings, contact by urging force
- contact springs compression springs, slant winding springs, leaf springs, etc.
- Contact members such as contact springs are required to have high electrical conductivity, a large spring load (spring urging force), and difficulty in stress relaxation. In order to meet this requirement, it is desired that the conductivity is high and the strength is high.
- Patent Document 1 discloses a Cu—Fe alloy to which Fe is added as a main additive element. Since Fe has a small solid solution amount with respect to Cu, the Cu—Fe alloy has Fe dispersed in the matrix. Therefore, when plastic processing such as wire drawing or rolling is performed on the cast material of the Cu—Fe alloy, the dispersed Fe is stretched into a fiber shape. The strength of the Cu-Fe alloy is increased by the fibrous Fe, and the Cu-Fe alloy has a high conductivity by Cu, which is the main component of the parent phase.
- the contact member such as the contact spring has a high conductivity, preferably satisfies the conductivity of 50% IACS or more and further improves the strength.
- the above contact member has a strength of 700 MPa or more and a conductivity of 50% IACS or more, a strength of 750 MPa or more and a conductivity of 50% IACS or more, particularly a strength of 900 MPa or more and a conductivity of It is desirable to achieve 50% IACS or higher.
- one of the objects of the present invention is to provide a copper alloy having both high strength and high conductivity.
- Another object of the present invention is to provide a copper alloy wire having both high strength and high conductivity.
- the present inventors In developing a high-strength copper alloy having high conductivity, the present inventors have two types of elements, Cu and Fe, as the main components, and the Cu phase and the Fe phase separated into two phases. The structure of the alloy was examined for a Cu-Fe alloy, which is a two-phase alloy.
- Cu is soft and has a high stacking fault energy, so it is difficult to introduce dislocations. As a result, it is not possible to introduce more than a certain degree of processing strain. Therefore, Cu has a limit in increasing strength even if the degree of plastic working (cold working) such as wire drawing or rolling is increased. Therefore, in the Cu-Fe alloy, Fe is used as an element for improving the strength. As the degree of processing is increased, Fe can be stretched into a fiber shape, and an effect of improving strength by fiber reinforcement can be expected. However, as the degree of processing increases, Fe slightly dissolves in Cu, causing a decrease in conductivity.
- heat treatment aging at about 300 to 500 ° C
- the processing strain introduced into the material before the heat treatment is zero. It can be. That is, while increasing the total workability, the total workability of the passes between heat treatments or the total workability from the final heat treatment to the final dimensions (wire diameter, thickness, cross-sectional area, etc.) can be reduced. As a result, it is considered that the solid solution amount of Fe can be reduced and the decrease in conductivity can be suppressed.
- plastic working typically cold working
- a texture is formed in which the orientation is primarily the ⁇ 111> orientation in Cu and the ⁇ 110> orientation in Fe. As shown in the example, the heat treatment in the middle of the processing does not affect the texture formed before the heat treatment.
- the present inventors pay attention to the texture, and perform plastic working (cold working) such as wire drawing and rolling and heat treatment on the material made of Cu-Fe alloy under various conditions.
- the orientation of each of Cu, Cu and Fe was adjusted.
- processing strain can be effectively applied to the Cu-Fe alloy, and the strength can be improved.
- a copper alloy that can be maintained, that is, excellent in both strength and conductivity, can be obtained.
- this copper alloy has a correlation between the degree of work and strength before a predetermined heat treatment applied during plastic working (cold working) such as wire drawing or rolling (hereinafter referred to as work degree-strength correlation (previous )) And the correlation between the degree of processing and strength after the predetermined heat treatment (hereinafter referred to as processing degree-strength correlation (after)), the slope indicating the degree of processing-strength correlation (front) Rather, the slope indicating the degree of processing-intensity correlation (after) is larger. Moreover, a copper alloy with higher electrical conductivity is obtained by a small workability.
- the present invention is based on the above findings.
- the copper alloy of the present invention is a Cu-Fe alloy containing 50 mass% or more and 95 mass% or less of Cu, 5 mass% or more and 50 mass% or less of Fe, and the balance being a deoxidizer element and inevitable impurities.
- the copper alloy of the present invention has a texture in which I Cu (111) is 0.70 or more and 1.0 or less and I Fe (110) is 0.90 or more and 1.0 or less in X-ray diffraction of a cross section.
- the above-mentioned I Cu (111) is the intensity ratio of the diffraction peak in the ⁇ 111> orientation of Cu to the intensity of the entire Cu diffraction line
- the above-mentioned I Fe (110) is ⁇ 110> of Fe to the intensity of the entire diffraction line of Fe.
- the copper alloy of the present invention has a texture in which both Cu and Fe satisfy a specific orientation, so that it has high strength and excellent electrical conductivity, a tensile strength of 700 MPa or more, and a conductivity of 50% IACS or more. .
- a form in which the I Cu (111) is 0.75 or more, or a form in which the I Cu (111) is 0.90 or more can be mentioned.
- the above-described embodiment in which the above-described diffraction peak intensity ratio I Cu (111) is larger is further excellent in intensity.
- some of the copper alloys of the present invention with I Cu (111) ⁇ 0.75 satisfy the tensile strength of 750 MPa or more and the conductivity of 50% IACS or more, and I Cu (111) ⁇ 0.90.
- Some copper alloys have a tensile strength of 900 MPa or more and a conductivity of 50% IACS or more.
- An embodiment of the present invention includes an embodiment in which the copper alloy has a tensile strength of 900 MPa or more and the copper alloy has a conductivity of 50% IACS or more.
- the above form is superior in strength while having high conductivity.
- the copper alloy of the present invention can take various forms by plastic working. For example, when a drawing process (drawing process) is performed as a plastic process, a wire made of the copper alloy of the present invention (a copper alloy wire of the present invention) can be obtained. Since the copper alloy wire of the present invention has high strength and high conductivity, it can be suitably used as a material for contact springs, for example. Since this contact spring is made of a high-strength material (a wire having a texture satisfying the above-mentioned specific orientation), a predetermined spring load can be applied over a long period of time, and stress relaxation is difficult.
- the copper alloy of the present invention and the copper alloy wire of the present invention have high strength and excellent conductivity.
- composition are all “mass ratio”.
- the copper alloy of the present invention is a binary alloy in which the base is Cu and the main additive element is Fe, and the Cu content is 50% to 95% and the Fe content is 5% to 50%.
- the Cu content is 50% or more, the conductivity is high, and when the Fe content is 5% or more, the strength is high.
- the Fe content is more preferably 5% to 30%, particularly preferably 10% to 20%.
- the remainder of Cu and Fe is a deoxidizer element and inevitable impurities.
- the deoxidizer element include Mn, Al, Si, and P.
- a deoxidizer element is a residue of a deoxidizer added at the time of manufacture, and the content of about 5% or less is permitted in total.
- inevitable impurities include components of production equipment (such as crucibles, dies, and rolling rollers) and lubricants used during production.
- each of Cu and Fe has a texture in which a specific orientation is oriented. Specifically, Cu is oriented in the ⁇ 111> orientation, and Fe is oriented in the ⁇ 110> orientation. Cu satisfies the diffraction peak intensity ratio I Cu (111) of 0.70 or more, and Fe satisfies the diffraction peak intensity ratio I Fe (110) of 0.90 or more.
- I Cu (111) is 0.75 or more, more preferably 0.85 or more, particularly preferably 0.90 or more
- I Fe (110) is preferably 0.92 or more, more preferably 0.95 or more, and particularly preferably 0.98 or more.
- I Cu (111) and I Fe (110) mainly depend on the degree of work, and tend to increase as the degree of work increases.
- the diffraction peak is examined by taking a cross section of the copper alloy of the present invention and performing X-ray diffraction on the cross section.
- the copper alloy of the present invention is a wire or plate
- X-ray diffraction is performed on a cross section (cross section) perpendicular to the processing direction (drawing direction, rolling direction, etc., typically the longitudinal direction).
- the copper alloy of the present invention takes various forms depending on the type of plastic working, typically, a wire rod (the copper alloy wire of the present invention) when drawn, and a plate material when rolled. , Strips (relatively long), strips (relatively long), and foils (relatively thin).
- Wire rods have various cross-sectional shapes depending on the shape of a wire drawing die or a wire drawing roller, and a cross-sectional circular shape (round line) and a cross-sectional rectangular shape (square line) are typical. In addition, there are wire rods having irregular shapes such as an elliptical cross section and a polygonal cross section.
- the shape before cutting is generally rectangular.
- the diameter (cross-sectional area) and length of the wire described above, and the thickness, width and length of the plate material described above are not particularly limited.
- the degree of processing may be selected so as to obtain a desired size (diameter, thickness, etc.) or cut to a desired length, and the size is not particularly limited.
- a round wire having a circular cross section may have a diameter of 0.1 mm or more and 1.2 mm or less, and a plate material or a strip may have a thickness of 0.1 mm or more and 0.5 mm or less.
- the copper alloy of the present invention composed of the above specific structure has high tensile strength and satisfies 700 MPa or more.
- Tensile strength generally depends on orientation, and the higher the orientation of both Cu and Fe (strength ratios I Cu (111) and I Fe (110) ), the greater the tensile strength. is there.
- the copper alloy of the present invention has high electrical conductivity and satisfies 50% IACS or more. Depending on the composition and degree of processing, 55% IACS or higher, 60% IACS or higher can be used.
- the copper alloy of the present invention can be typically produced through steps of melting ⁇ casting ⁇ cold working (appropriate heat treatment).
- cold working include drawing (drawing) using a drawing die or a drawing roller, and rolling using a rolling roller.
- the heat treatment before and during the cold working is an aging treatment, which actively separates Fe and restores toughness and conductivity. Further, the heat treatment during the processing can remove the processing strain introduced excessively in the alloy. Examples of the heat treatment conditions include a heating temperature of 300 ° C. or more and 500 ° C. or less, and a holding time of 1 minute or more and 3 hours or less (selected as appropriate depending on the shape). When the heating temperature of this heat treatment is less than 300 ° C., Fe separation becomes insufficient, and the processing strain cannot be sufficiently removed.
- this heat treatment is preferably performed when it is close to the final dimension, that is, the plastic processing after the heat treatment is used as the final processing so that the degree of processing of the final processing is reduced. It is preferable to select the timing for performing the heat treatment such that the smaller the degree of final processing is, the easier it is to increase the conductivity and the degree of final processing is about 60% to 80%.
- the copper alloy of the present invention will be described with reference to test examples.
- plastic working is performed to produce a plastic working material.
- orientation and tensile strength of Cu and Fe are measured.
- the thickness (MPa) and conductivity (% IACS) were examined.
- Test Example 1 In Test Example 1, copper alloys having different final wire diameters were produced by varying the degree of plastic working.
- the raw material was prepared by melting and casting so that a Cu—Fe alloy having the composition shown in Table 1 was obtained, and the obtained cast material was cold-rolled to obtain a rolled wire having a diameter of 5.0 mm. Mn was used as a deoxidizer during casting.
- the prepared material was heat-treated at 450 ° C. for 3 hours, and the working strain introduced by plastic working (here, cold rolling) before the heat treatment was zero (working degree 0%).
- the material after the heat treatment was drawn using a wire drawing die with a degree of processing (cross-sectional reduction rate,%) shown in Table 1 to produce a plurality of wires having different degrees of processing.
- the cross section (transverse section) perpendicular to the drawing direction was taken for the wire rod of each sample obtained, and the orientation of Cu and Fe as main components was examined by X-ray diffraction XRD.
- the measurement conditions are shown below.
- I Fe (110) peek intensity ratio I Fe (110) peek / I Fe total I Fe (110) is determined.
- Table 1 shows I Cu (111) and I Fe (110) in the central portion of each sample. When the sample has a large wire diameter, the average of the diffraction peak near the surface of the sample (a point about 50 ⁇ m from the surface toward the center) and the diffraction peak at the center portion described above in the cross section described above. Values can be used for I Cu (111) and I Fe (110) . As in this example, when the sample is a thin wire, measurement is easy if the central portion is the measurement surface as described above.
- a copper alloy having a texture satisfying I Cu (111) of 0.70 or more and I Fe (110) of 0.90 or more has high strength and high conductivity. It can be seen that the tensile strength is 700 MPa or more and the conductivity is 50% IACS or more. Moreover, it turns out that intensity
- Test Example 2 In Test Example 2, a heat treatment was appropriately performed during plastic working to produce a copper alloy having the same final wire diameter.
- the material (diameter ⁇ 5.0 mm) prepared in Test Example 1 was subjected to heat treatment (450 ° C. ⁇ 3 hours), and then subjected to drawing processing in the same manner as Test Example 1.
- heat treatment 450 ° C. ⁇ 3 hours
- drawing processing in the same manner as Test Example 1.
- heat treatment was performed at 450 ° C. for 10 minutes, and then the drawing process was further performed to obtain the final wire diameter (mm) shown in Table 2.
- Wire was produced.
- the orientation (I Cu (111) , I Fe (110) ), tensile strength (MPa), and conductivity (% IACS) were examined in the same manner as in Test Example 1. The results are shown in Table 2.
- a copper alloy having a texture satisfying I Cu (111) of 0.70 or more and I Fe (110) of 0.90 or more is high strength even when heat treatment is performed during the cold working.
- the conductivity is high, specifically, the tensile strength is 700 MPa or more and the conductivity is 50% IACS or more.
- I Cu (111 ) And I Fe (110) are comparable and the tensile strength is comparable.
- the texture with a certain orientation (here, the texture with the ⁇ 111> orientation of Cu and the ⁇ 110> orientation of Fe preferentially oriented) is the case when heat treatment is performed during plastic working
- the orientation does not greatly collapse.
- this test result shows that in a Cu-Fe alloy that is a two-phase alloy, once a texture having a certain orientation is formed, the orientation can be improved by subsequent plastic working, and the strength can be improved.
- the high conductivity can be maintained.
- it can be seen from this test result that even when the heat treatment is performed during the plastic working and the strength is lowered after the processing strain is once reduced, the strength is increased by the processing after the heat treatment.
- Test Example 3 Similarly to Test Example 2, Test Example 3 was appropriately heat-treated during plastic working to produce a copper alloy having the same final wire diameter. However, in Test Example 3, the final wire diameter was made smaller than that in Test Example 2 and the timing of heat treatment was varied. Except for this point, a wire made of a Cu-Fe alloy was prepared in the same manner as in Test Example 2, and the orientation (I Cu (111) , I Fe (110) ), tensile strength was the same as in Test Example 1. (MPa), conductivity (% IACS) was examined. The results are shown in Table 3.
- Test Example 3 is a copper alloy having a texture satisfying I Cu (111) of 0.70 or more and I Fe (110) of 0.90 or more even when heat treatment is performed during cold working It can be seen that has high strength and high conductivity. Further, for example, the material subjected to the above heat treatment in Sample No. 3-3 is processed more than Sample No. 1-4 (sample having a final wire diameter of 1.58 mm) in Table 1 of Test Example 1 having the same composition. Therefore, the material has a texture satisfying that I Cu (111) is 0.70 or more and I Fe (110) is 0.90 or more, since the heat treatment wire diameter is 1.12 mm. It can be said that it has.
- the material subjected to the above heat treatment in Test Example 3 is the sample No. 1-5, No. 1-14, No. 1-15, No. 1- 1 in Table 1 of Test Example 1. 24, No. 1-25, it can be said that it has a texture satisfying I Cu (111) of 0.70 or more and I Fe (110) of 0.90 or more. And it turns out that orientation can be further improved by using the copper alloy which has such a specific texture as a raw material, and also heat-processing and plastic processing. Specifically, as shown in Table 3, it has a texture satisfying I Cu (111) of 0.90 or more and I Fe (110) of 0.98 or more, a tensile strength of 900 MPa or more, and a conductivity of 50% IACS. It turns out that it is above. Therefore, it can be seen that further high strength can be achieved by providing a texture satisfying the above specific orientation.
- a copper alloy having a texture in which both Cu and Fe satisfy a specific orientation has both high strength and high conductivity.
- this copper alloy satisfies a tensile strength of 700 MPa or more and a conductivity of 50% IACS or more. Therefore, when this copper alloy is used for applications where high strength is desired in addition to high conductivity such as contact springs, it is possible to apply a predetermined spring load for a long period of time and it is difficult to relieve stress. It is expected to take
- when producing a copper alloy having the specific texture described above in the middle of cold working, especially when it is close to the final wire diameter, when heat treatment is performed upstream of cold working The conductivity can be further increased while having the same high strength.
- the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist of the present invention.
- the composition (Fe content), heat treatment conditions (implementation time, temperature, time, etc.), the degree of plastic working (cold working), the form of the copper alloy (rolled plate, etc.), etc. can be changed.
- the copper alloy of the present invention is a member (connector female portion, connector contact portion, terminal fitting, electrical connection between various electric / electronic devices such as storage batteries, power generation devices, vehicle-mounted components, and wires. It can be suitably used for materials for contact springs, switches, sockets, relays, etc.) and other materials for conductive members that require high strength and high conductivity.
- the copper alloy wire of the present invention can be suitably used as a material for contact springs such as compression springs and oblique winding springs.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Conductive Materials (AREA)
- Non-Insulated Conductors (AREA)
Abstract
Description
(組成)
本発明の銅合金は、ベースをCu、主要添加元素をFeとする二元合金であり、Cuの含有量を50%以上95%以下、Feの含有量を5%以上50%以下とする。Cuの含有量が50%以上であることで、導電率が高く、Feの含有量が5%以上であることで、強度が高い。Cuの含有量が多いほど導電率が高く、Feの含有量が多いほど強度が高い。Feの含有量は、5%以上30%以下、特に10%以上20%以下がより好ましい。
本発明の銅合金は、Cu及びFeのそれぞれが、特定の方位が配向した集合組織を有する。具体的には、Cuは、<111>方位が配向し、Feは、<110>方位が配向している。そして、Cuは、上述の回折ピークの強度比ICu(111)が0.70以上、Feは、上述の回折ピークの強度比IFe(110)が0.90以上を満たす。Cu及びFeのいずれも、配向性が高いほど(上記回折ピークの強度比が大きいほど)、強度が高い傾向にあり、ICu(111)は0.75以上、更に0.85以上、特に0.90以上が好ましく、IFe(110)は0.92以上、更に0.95以上、特に0.98以上が好ましい。ICu(111)及びIFe(110)は、主として、加工度に依存し、加工度が高いほど大きくなる傾向にある。但し、ICu(111)≧0.70かつIFe(110)≧0.90を満たす集合組織を有する素材に熱処理を施した後、更に塑性加工を行った場合には、小さい加工度(例えば、50%程度)の加工を施した銅合金のICu(111)及びIFe(110)と、大きい加工度(例えば、80%程度)の加工を施した銅合金のICu(111)及びIFe(110)とが同程度になる。
本発明の銅合金は、塑性加工の種類によって種々の形態をとり、代表的には、引抜加工を施した場合には線材(本発明の銅合金線)、圧延加工を施した場合には板材、帯材(比較的長いもの)、条(比較的長いもの)、箔(比較的厚さが薄いもの)が挙げられる。
上述の線材の直径(断面積)や長さ、上述の板材などの厚さ・幅や長さは特に問わない。用途に応じて、所望の大きさ(直径や厚さなど)となるように加工度を選択したり、所望の長さに切断したりするとよく、大きさは特に問わない。例えば、横断面円形状の丸線として、その直径が0.1mm以上1.2mm以下のもの、板材や帯材として、その厚さが0.1mm以上0.5mm以下のものが挙げられる。
上記特定の組織から構成される本発明の銅合金は、引張強さが高く、700MPa以上を満たす。引張強さが高いほど、例えば、小型・軽量化が可能となる、ばね荷重を増大できる、大きなばね荷重を維持し易い、応力緩和性に優れる、破断し難いなどの格別の効果が得られることから、750MPa以上、更に800MPa以上、特に900MPa以上が好ましい。引張強さは、概ね、配向性に依存しており、Cu及びFeの双方の配向性(強度比ICu(111)及びIFe(110))が高いほど、引張強さが大きくなる傾向にある。
本発明の銅合金は、導電率が高く、50%IACS以上を満たす。組成や加工度合いによっては、55%IACS以上、60%IACS以上、といった形態が挙げられる。
本発明の銅合金は、代表的には、溶解→鋳造→冷間加工(適宜、熱処理)という工程を経て製造することができる。冷間加工は、伸線ダイスや伸線ローラを用いた引抜加工(伸線加工)、圧延ローラを用いた圧延加工などが挙げられる。冷間加工に供する素材の大きさは、当該冷間加工を施して最終寸法を得るまでの総加工度(引抜加工の場合、加工度=断面減少率、圧延加工の場合、加工度=圧下率)を考慮して、適宜選択することができる。
試験例1では、塑性加工の加工度を異ならせて、最終線径が異なる銅合金を作製した。
使用X線 Cu-Kα
励起条件 45 kV、200 mA
使用コリメータ φ0.3mm
測定法 θ-2θ法
試験例2では、塑性加工途中で適宜熱処理を施し、最終線径が同じ銅合金を作製した。
試験例3も試験例2と同様に、塑性加工の途中で適宜熱処理を施し、最終線径が同じ銅合金を作製した。但し、試験例3では、最終線径を試験例2よりも小さくし、熱処理を施す時期を異ならせた。この点以外は、試験例2と同様にして、Cu-Fe合金からなる線材を作製し、試験例1と同様にして、配向性(ICu(111),IFe(110))、引張強さ(MPa)、導電率(%IACS)を調べた。その結果を表3に示す。
上記試験結果に示すように、Cu及びFeの双方が特定の配向性を満たす集合組織を具える銅合金は、高強度かつ高導電率を両立する。具体的には、この銅合金は、引張強さが700MPa以上、かつ導電率が50%IACS以上を満たす。従って、この銅合金を接点ばねなどの高導電性に加えて、高強度が望まれる用途に利用した場合、長期に亘り、所定のばね荷重を付与でき、応力緩和もし難いことから、十分に導通をとれると期待される。また、上述の特定の集合組織を有する銅合金を製造するにあたり、冷間加工の途中において、特に最終線径に近いときに熱処理を施すことで、冷間加工の上流で熱処理を施した場合と同程度の高い強度を有していながら、導電率をより高くすることができる。
Claims (5)
- Cuを50質量%以上95質量%以下、Feを5質量%以上50質量%以下含み、残部が脱酸剤元素及び不可避不純物からなり、
断面をX線回折して、
Cuの回折線全体の強度に対するCuの<111>方位の回折ピークの強度比をICu(111)、
Feの回折線全体の強度に対するFeの<110>方位の回折ピークの強度比をIFe(110)とするとき、
前記ICu(111)が0.70以上1.0以下、かつ前記IFe(110)が0.90以上1.0以下である集合組織を有する銅合金。 - 前記ICu(111)が0.75以上である請求項1に記載の銅合金。
- 前記ICu(111)が0.90以上である請求項1又は2に記載の銅合金。
- 前記銅合金の引張強さが900MPa以上、かつ前記銅合金の導電率が50%IACS以上である請求項3に記載の銅合金。
- 請求項1~4のいずれか1項に記載の銅合金からなる銅合金線。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020147018523A KR20140111665A (ko) | 2012-01-11 | 2012-12-28 | 구리 합금 및, 구리 합금선 |
EP12865221.1A EP2803740A4 (en) | 2012-01-11 | 2012-12-28 | COPPER ALLOY AND COPPER ALLOY WIRE |
US14/371,163 US20150004052A1 (en) | 2012-01-11 | 2012-12-28 | Copper alloy and copper alloy wire |
CN201280066675.5A CN104039994B (zh) | 2012-01-11 | 2012-12-28 | 铜合金和铜合金线 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012003521A JP6050588B2 (ja) | 2012-01-11 | 2012-01-11 | 銅合金線 |
JP2012-003521 | 2012-01-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013105475A1 true WO2013105475A1 (ja) | 2013-07-18 |
Family
ID=48781430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/084190 WO2013105475A1 (ja) | 2012-01-11 | 2012-12-28 | 銅合金、及び銅合金線 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20150004052A1 (ja) |
EP (1) | EP2803740A4 (ja) |
JP (1) | JP6050588B2 (ja) |
KR (1) | KR20140111665A (ja) |
CN (1) | CN104039994B (ja) |
WO (1) | WO2013105475A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101519075B1 (ko) * | 2013-12-03 | 2015-05-21 | (주)신동 | 전자기파 차폐용 철동합금 선재 또는 봉재와 그 제조방법 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015137372A (ja) * | 2014-01-21 | 2015-07-30 | 株式会社オートネットワーク技術研究所 | コネクタピン用Cu−Fe系合金線材及びコネクタ |
JP2016069713A (ja) * | 2014-10-01 | 2016-05-09 | 住友電気工業株式会社 | 銅合金材、コネクタ端子、及び銅合金材の製造方法 |
CN104700932B (zh) * | 2015-02-10 | 2017-08-04 | 河南天海电器有限公司 | 汽车用高强度0.13mm2电线 |
CN105039775B (zh) * | 2015-06-02 | 2017-04-05 | 苏州晓锋知识产权运营管理有限公司 | 导电性弹簧板的制造方法 |
CN110396619A (zh) * | 2019-08-08 | 2019-11-01 | 宁波金田铜业(集团)股份有限公司 | 一种铜铁合金线材及其制备方法 |
CN113088750B (zh) * | 2021-03-19 | 2022-03-25 | 宁波金田铜业(集团)股份有限公司 | 一种铜铁合金线材及其制备方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05287417A (ja) | 1992-04-15 | 1993-11-02 | Fujikura Ltd | 高強度高導電率銅合金 |
JP2006016667A (ja) * | 2004-07-01 | 2006-01-19 | Dowa Mining Co Ltd | 銅基合金およびその製造方法 |
JP2006206988A (ja) * | 2005-01-31 | 2006-08-10 | Nikko Kinzoku Kk | 電子機器用銅合金 |
JP2006219705A (ja) * | 2005-02-09 | 2006-08-24 | Nikko Kinzoku Kk | 高強度高導電性銅合金の製造方法及び高強度高導電性銅合金 |
JP2006249505A (ja) * | 2005-03-10 | 2006-09-21 | Nikko Metal Manufacturing Co Ltd | 高強度高導電性銅合金及びその製造方法 |
JP2006283129A (ja) * | 2005-03-31 | 2006-10-19 | Nikko Kinzoku Kk | 高強度高導電性銅合金、銅合金ばね材及び銅合金箔、並びに高強度高導電性銅合金の製造方法 |
JP2007186799A (ja) * | 2007-03-22 | 2007-07-26 | Dowa Holdings Co Ltd | プレス加工性に優れた銅または銅基合金およびその製造方法 |
JP2009079281A (ja) * | 2007-09-27 | 2009-04-16 | Nikko Kinzoku Kk | 高強度高導電性二相銅合金 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63162829A (ja) * | 1986-12-26 | 1988-07-06 | Hisao Wakaumi | 半硬質磁性銅鉄合金 |
JP3962291B2 (ja) * | 2001-07-17 | 2007-08-22 | 日鉱金属株式会社 | 銅張積層板用圧延銅箔およびその製造方法 |
US20040238086A1 (en) * | 2003-05-27 | 2004-12-02 | Joseph Saleh | Processing copper-magnesium alloys and improved copper alloy wire |
JP4215093B2 (ja) * | 2006-10-26 | 2009-01-28 | 日立電線株式会社 | 圧延銅箔およびその製造方法 |
-
2012
- 2012-01-11 JP JP2012003521A patent/JP6050588B2/ja active Active
- 2012-12-28 CN CN201280066675.5A patent/CN104039994B/zh active Active
- 2012-12-28 WO PCT/JP2012/084190 patent/WO2013105475A1/ja active Application Filing
- 2012-12-28 EP EP12865221.1A patent/EP2803740A4/en not_active Withdrawn
- 2012-12-28 KR KR1020147018523A patent/KR20140111665A/ko not_active Application Discontinuation
- 2012-12-28 US US14/371,163 patent/US20150004052A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05287417A (ja) | 1992-04-15 | 1993-11-02 | Fujikura Ltd | 高強度高導電率銅合金 |
JP2006016667A (ja) * | 2004-07-01 | 2006-01-19 | Dowa Mining Co Ltd | 銅基合金およびその製造方法 |
JP2006206988A (ja) * | 2005-01-31 | 2006-08-10 | Nikko Kinzoku Kk | 電子機器用銅合金 |
JP2006219705A (ja) * | 2005-02-09 | 2006-08-24 | Nikko Kinzoku Kk | 高強度高導電性銅合金の製造方法及び高強度高導電性銅合金 |
JP2006249505A (ja) * | 2005-03-10 | 2006-09-21 | Nikko Metal Manufacturing Co Ltd | 高強度高導電性銅合金及びその製造方法 |
JP2006283129A (ja) * | 2005-03-31 | 2006-10-19 | Nikko Kinzoku Kk | 高強度高導電性銅合金、銅合金ばね材及び銅合金箔、並びに高強度高導電性銅合金の製造方法 |
JP2007186799A (ja) * | 2007-03-22 | 2007-07-26 | Dowa Holdings Co Ltd | プレス加工性に優れた銅または銅基合金およびその製造方法 |
JP2009079281A (ja) * | 2007-09-27 | 2009-04-16 | Nikko Kinzoku Kk | 高強度高導電性二相銅合金 |
Non-Patent Citations (2)
Title |
---|
JIS Z 2241, 2011 |
See also references of EP2803740A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101519075B1 (ko) * | 2013-12-03 | 2015-05-21 | (주)신동 | 전자기파 차폐용 철동합금 선재 또는 봉재와 그 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
CN104039994A (zh) | 2014-09-10 |
EP2803740A4 (en) | 2016-03-02 |
JP2013142178A (ja) | 2013-07-22 |
US20150004052A1 (en) | 2015-01-01 |
JP6050588B2 (ja) | 2016-12-21 |
EP2803740A1 (en) | 2014-11-19 |
CN104039994B (zh) | 2016-03-30 |
KR20140111665A (ko) | 2014-09-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6050588B2 (ja) | 銅合金線 | |
JP6039999B2 (ja) | Cu−Ni−Co−Si系銅合金板材およびその製造法 | |
JP5261122B2 (ja) | 銅合金板材およびその製造方法 | |
JP5189715B1 (ja) | 優れた耐疲労特性を有するCu−Mg−P系銅合金板及びその製造方法 | |
TWI665318B (zh) | 電子/電氣機器用銅合金、電子/電氣機器用銅合金塑性加工材、電子/電氣機器用零件、端子以及匯流排 | |
JP2008095202A (ja) | 銅合金線材およびその製造方法 | |
JP2009007666A (ja) | 電気・電子機器用銅合金 | |
WO2016006053A1 (ja) | 銅合金板材、コネクタ、及び銅合金板材の製造方法 | |
WO2013161351A1 (ja) | Cu-Ni-Si系銅合金 | |
JP5243744B2 (ja) | コネクタ端子 | |
JP2014025089A (ja) | 曲げ加工後のばね限界値特性及び耐疲労特性に優れたCu−Mg−P系銅合金板及びその製造方法 | |
JP5534610B2 (ja) | Cu−Co−Si系合金条 | |
WO2016051864A1 (ja) | 銅合金材、コネクタ端子、及び銅合金材の製造方法 | |
WO2015111455A1 (ja) | コネクタピン用Cu-Fe系合金線材及びコネクタ | |
JP6085633B2 (ja) | 銅合金板および、それを備えるプレス成形品 | |
JP2018154910A (ja) | 強度及び導電性に優れる銅合金板 | |
JP5522771B2 (ja) | 板材の打抜き加工方法 | |
JP5470499B1 (ja) | 銅合金板、並びに、それを備える大電流用電子部品及び放熱用電子部品 | |
KR101822374B1 (ko) | 구리 합금조 및 그것을 구비하는 대전류용 전자 부품 및 방열용 전자 부품 | |
JP6635732B2 (ja) | アルミニウム合金導電線の製造方法、アルミニウム合金導電線、これを用いた電線及びワイヤハーネス | |
JP2012153961A (ja) | 銅−亜鉛合金板条及び銅−亜鉛合金板条の製造方法 | |
JP6328166B2 (ja) | Cu−Ni−Si系圧延銅合金及びその製造方法 | |
KR101612186B1 (ko) | Cu-Co-Si 계 구리 합금조 및 그 제조 방법 | |
WO2015093270A1 (ja) | 端子金具用Cu-Fe系合金圧延板及び端子金具 | |
JP6879971B2 (ja) | 銅合金材料、電子部品、電子機器及び銅合金材料の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201280066675.5 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12865221 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20147018523 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14371163 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012865221 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |