WO2015093460A1 - 複合撚線 - Google Patents
複合撚線 Download PDFInfo
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- WO2015093460A1 WO2015093460A1 PCT/JP2014/083211 JP2014083211W WO2015093460A1 WO 2015093460 A1 WO2015093460 A1 WO 2015093460A1 JP 2014083211 W JP2014083211 W JP 2014083211W WO 2015093460 A1 WO2015093460 A1 WO 2015093460A1
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- aluminum
- wire
- strand
- composite
- steel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/08—Several wires or the like stranded in the form of a rope
- H01B5/10—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material
- H01B5/102—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core
- H01B5/104—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core composed of metallic wires, e.g. steel wires
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0606—Reinforcing cords for rubber or plastic articles
- D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
- D07B1/064—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration the reinforcing cords being twisted and with at least one wire exchanging place with another wire
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0606—Reinforcing cords for rubber or plastic articles
- D07B1/066—Reinforcing cords for rubber or plastic articles the wires being made from special alloy or special steel composition
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
- D07B1/147—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising electric conductors or elements for information transfer
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- 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
- H01B1/023—Alloys based on aluminium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0045—Cable-harnesses
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2001—Wires or filaments
- D07B2201/201—Wires or filaments characterised by a coating
- D07B2201/2011—Wires or filaments characterised by a coating comprising metals
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2036—Strands characterised by the use of different wires or filaments
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2038—Strands characterised by the number of wires or filaments
- D07B2201/204—Strands characterised by the number of wires or filaments nine or more wires or filaments respectively forming multiple layers
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2047—Cores
- D07B2201/2052—Cores characterised by their structure
- D07B2201/2065—Cores characterised by their structure comprising a coating
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/30—Inorganic materials
- D07B2205/3021—Metals
- D07B2205/306—Aluminium (Al)
Definitions
- the present invention relates to a composite stranded wire. More specifically, the present invention relates to a composite twisted wire that can be suitably used for, for example, an automobile wire harness.
- an electric wire for example, an electric wire has been proposed in which an element wire made of copper, copper alloy, aluminum, aluminum alloy or the like is a first element wire, and an element wire made of stainless steel is a second element wire (for example, (See claims 1 to 3 of Patent Document 1).
- Patent Document 1 introduces an electric wire in which an element wire made of stainless steel and an element wire made of aluminum or an aluminum alloy are combined as an electric wire that is thinned and lightened.
- a wire made of aluminum or an aluminum alloy used for the electric wire is crimped when the tensile load is small.
- breaking at the part In addition, when a strand made of aluminum or an aluminum alloy breaks at the crimping portion, the strand made of stainless steel is pulled out from the crimping portion, and the reinforcing effect of the strand made of stainless steel cannot be sufficiently obtained. There is.
- the strand made of aluminum or aluminum alloy is softer than the strand made of stainless steel. It was observed that the shape of the strand made of stainless steel was maintained while the cross-sectional area was greatly reduced at the portion, while the cross-sectional area was reduced. Therefore, when a tensile test is performed on the electric wire, the strand made of aluminum or aluminum alloy breaks at the crimped portion having a reduced cross-sectional area when crimped to the terminal.
- the wire made of aluminum or aluminum alloy cannot firmly hold the wire made of stainless steel in the crimping part, and only the wire made of stainless steel It is considered that the tensile strength of the electric wire cannot be increased due to the wire being pulled out from the crimping portion.
- the stainless steel used for the said electric wire and the aluminum or aluminum alloy are different metals in the electric wire which combined the strand made of stainless steel and the strand made of aluminum or aluminum alloy, the stainless steel Potential difference corrosion may occur at the contact portion between the steel and the aluminum or aluminum alloy.
- an electric wire made of a combination of stainless steel and copper solves the problem of potentiometric corrosion, but an electric wire made of a combination of stainless steel and an aluminum alloy The problem is not solved.
- the present invention has been made in view of the above prior art, and an object of the present invention is to provide a composite stranded wire that is reduced in weight and has excellent tensile strength and electrical resistance over time.
- the present invention (1) A composite stranded wire in which a plurality of strands are twisted together, an aluminum coated strand in which a coating made of aluminum or an aluminum alloy is formed on the surface of the steel wire and an aluminum strand made of aluminum or an aluminum alloy A composite stranded wire characterized by having, (2) The composite stranded wire according to (1), wherein the steel material constituting the steel wire of the aluminum-coated wire is carbon steel or stainless steel, (3) The strands arranged on the outermost periphery are all aluminum strands, and the composite twisted wire according to (1) or (2), and (4) the aluminum-coated strands are in contact with only the aluminum strands. The composite twisted wire according to any one of (1) to (3).
- a composite stranded wire that is reduced in weight and is excellent in the temporal strength of tensile strength and electrical resistance.
- Example 10 is an optical micrograph of a cross section of a crimped portion between a composite stranded wire and a terminal obtained in Comparative Example 7. It is an optical microscope photograph of the cross section of the crimping
- the composite stranded wire of the present invention is a composite stranded wire in which a plurality of strands are twisted together, and an aluminum-coated strand and aluminum or aluminum coating in which a coating made of aluminum or an aluminum alloy is formed on the surface of the steel wire. It has the aluminum strand which consists of aluminum alloys, It is characterized by the above-mentioned.
- an aluminum-coated strand in which a coating made of aluminum or an aluminum alloy is formed on the surface of the steel wire and an aluminum strand made of aluminum or an aluminum alloy are used. Since the aluminum strand is twisted together, the steel wire used for the aluminum-coated strand has a larger deformation resistance than the aluminum strand. When the wire is crimped, the aluminum-coated strand contained in the composite twisted wire is difficult to be pulled out from the crimped portion, an excellent tensile strength is exhibited, and the electrical resistance is stable over time.
- the composite stranded wire of the present invention includes an aluminum-coated wire in which a coating made of aluminum or an aluminum alloy is formed on the surface of a steel wire and an aluminum strand made of aluminum or an aluminum alloy. Since the surface of the wire and the surface of the aluminum strand are the same, potential difference corrosion due to contact of different metals can be suppressed.
- the reliability of the said terminal can be improved by connecting the composite twisted wire of this invention to a terminal.
- FIG. 1 is a schematic cross-sectional view showing one embodiment of the composite twisted wire of the present invention.
- FIG. 2 is a schematic cross-sectional view of an aluminum-coated strand used for the composite stranded wire of the present invention.
- the composite stranded wire 1 of the present invention is made of an aluminum-coated strand 2 in which a coating 2 b made of aluminum or an aluminum alloy is formed on the surface of a steel wire 2 a and aluminum or an aluminum alloy.
- An aluminum strand 3 is provided.
- the aluminum-coated strand 2 can be manufactured by forming a coating 2b made of aluminum or an aluminum alloy on the surface of the steel wire 2a.
- Examples of the steel material constituting the steel wire 2a include stainless steel and carbon steel, but the present invention is not limited to such examples.
- Stainless steel is an alloy steel containing 10% by mass or more of chromium (Cr).
- examples of the stainless steel include austenitic steel materials, ferritic steel materials, martensitic steel materials and the like specified in JIS G4309, but the present invention is not limited only to such examples.
- the stainless steel include stainless steels such as SUS301 and SUS304, which are generally considered to be metastable; austenitic stainless steels such as SUS305, SUS310, and SUS316; SUS405, SUS410, SUS429, SUS430, SUS434, Ferritic stainless steels such as SUS436, SUS444, and SUS447; martensitic stainless steels such as SUS403, SUS410, SUS416, SUS420, SUS431, and SUS440, as well as chromium-nickel-manganese stainless steel classified in the SUS200 series
- the present invention is not limited to such examples.
- Carbon steel is a steel material containing 0.02% by mass or more of carbon (C).
- Examples of the carbon steel include, for example, steel materials defined in the standard of JIS G3560 hard steel wire and JIS G3505 mild steel wire, but the present invention is not limited to such examples.
- Specific examples of carbon steel include hard steel and mild steel, but the present invention is not limited to such illustrations.
- stainless steel and carbon steel are preferable from the viewpoint of increasing the tensile strength of the composite twisted wire 1 of the present invention.
- the diameter of the steel wire 2a is not particularly limited, and is preferably adjusted as appropriate according to the application of the composite twisted wire 1 of the present invention.
- the diameter of the steel wire 2a is usually preferably about 0.05 to 0.5 mm.
- a coating 2b made of aluminum or an aluminum alloy is formed on the surface of the steel wire 2a.
- the composite stranded wire 1 of the present invention includes an aluminum-coated strand 2, an aluminum strand 3, It has excellent adhesion and excellent temporal strength of tensile strength and electrical resistance.
- the coating 2b may be formed of only aluminum, and may contain other elements as long as it does not impair the purpose of the present invention.
- Examples of the other elements include nickel, chromium, zinc, silicon, copper, and iron, but the present invention is not limited to such examples.
- the mechanical strength of the coating 2b can be increased, and as a result, the tensile strength of the composite twisted wire 1 of the present invention can be increased.
- an iron-aluminum alloy layer having brittleness between the iron contained in the steel wire 2a and the aluminum contained in the coating 2b is formed. Silicon is preferable from the viewpoint of suppressing the above and increasing the mechanical strength of the coating 2b.
- the lower limit of the content of the other element in the coating 2b is 0% by mass, but preferably 0.3% by mass or more, more preferably 0 from the viewpoint of sufficiently expressing the properties of the other element. 0.5% by mass or more, more preferably 1% by mass or more, and preferably 50% by mass or less, more preferably 20% by mass or less, and still more preferably 15% from the viewpoint of suppressing potential difference corrosion due to contact with the aluminum wire. It is below mass%.
- Examples of the method for forming the coating 2b made of aluminum or an aluminum alloy on the surface of the steel wire 2a include a method of plating a material for forming the coating 2b on the surface of the steel wire 2a. It is not limited only to such illustration.
- Examples of the method for plating the material for forming the coating 2b on the surface of the steel wire 2a include a hot dipping method, an electroplating method, a vacuum plating method, and the like, but the present invention is limited only to such examples. is not.
- the hot dipping method is preferable from the viewpoint of forming a film having a uniform film thickness.
- the thickness of the coating 2b is preferably 0.5 ⁇ m or more, more preferably 3 ⁇ m or more from the viewpoint of improving the adhesion between the aluminum-coated strand 2 and the aluminum strand 3, and increases the mechanical strength of the coating 2b. From the viewpoint, it is preferably 50 ⁇ m or less, more preferably 30 ⁇ m or less.
- a plating layer may be formed as an intermediate layer between the steel wire 2a and the coating 2b, if necessary.
- the metal constituting the plating layer include zinc, nickel, chromium, and alloys thereof, but the present invention is not limited to such examples.
- the plating layer may be formed of only one layer, or a plurality of plating layers made of the same or different metals may be formed.
- the intermediate layer may be an alloy layer formed when the coating 2b is coated on the steel wire 2a by the hot dipping method.
- the aluminum-coated strand 2 By forming the coating 2b on the surface of the steel wire 2a as described above, the aluminum-coated strand 2 can be obtained.
- the aluminum-coated strand 2 may be subjected to wire drawing processing so as to have a desired wire diameter, if necessary.
- the composite strand 1 of the present invention uses the aluminum strand 3, the weight is reduced and the aluminum-coated strand 2 is used together with the aluminum strand 3. Excellent stability over time.
- Aluminum strand 3 made of aluminum or aluminum alloy may be a strand made of aluminum or a strand made of aluminum alloy.
- Examples of the aluminum alloy include an aluminum-silicon alloy, an aluminum-iron alloy, an aluminum-chromium alloy, an aluminum-nickel alloy, an aluminum-zinc alloy, an aluminum-copper alloy, an aluminum-manganese alloy, and an aluminum-magnesium alloy (for example, JIS Alloy number A5056 defined in H4040), aluminum-magnesium-silicon alloy, aluminum-zinc-magnesium alloy, aluminum-zinc-magnesium-copper alloy, and the like, but the present invention is limited to such examples only. is not. These aluminum alloys may be used alone or in combination of two or more.
- the content of the metal other than aluminum in the aluminum alloy cannot be determined unconditionally because it varies depending on the type of the metal, but is usually 0.3% by mass or more from the viewpoint of improving the tensile strength. Preferably, it is 10% by mass or less from the viewpoint of reducing weight and suppressing potential difference corrosion due to contact with the aluminum-coated strand 2.
- the metal constituting the aluminum strand 3 made of aluminum or an aluminum alloy is preferably an aluminum alloy, more preferably an aluminum-manganese alloy and an aluminum-magnesium-silicon alloy from the viewpoint of improving tensile strength.
- the diameter of the aluminum strand 3 is not particularly limited, and is preferably adjusted as appropriate according to the use of the composite stranded wire 1 of the present invention.
- the diameter of the aluminum strand 3 is usually preferably about 0.05 to 0.5 mm.
- the composite stranded wire 1 of the present invention can be manufactured by twisting the aluminum-coated strand 2 and the aluminum strand 3 together.
- the composite twisted wire 1 of the present invention may include a strand other than the aluminum-coated strand 2 and the aluminum strand 3 as long as the object of the present invention is not hindered.
- FIG. 3 is a schematic explanatory view showing one embodiment of the method for producing the composite twisted wire 1 of the present invention.
- the aluminum-coated wire 2 is supplied from a supply bobbin 4, and the aluminum wire 3 is supplied from a supply bobbin 5.
- one aluminum-coated strand 2 is supplied from a supply bobbin 4 as a central strand constituting the central portion of the composite twisted wire 1 of the present invention. Further, six aluminum strands 3 are sent out from the supply bobbins 5 as peripheral strands surrounding the central strand, and are supplied around the aluminum-coated strand 2.
- the composite twisted wire 1 can be manufactured by conveying the aluminum-coated strand 2 and the aluminum strand 3 in the direction of arrow B while twisting in the direction of arrow A, for example.
- the composite twisted wire 1 manufactured as described above has the cross-sectional shape shown in FIG. 1, but the present invention is not limited to the cross-sectional shape.
- FIG. 4 (a) to (i) are schematic cross-sectional views of a composite twisted wire according to another embodiment of the present invention.
- each of the strands arranged on the outermost periphery is an aluminum strand 3, and the aluminum-coated strand 2 is in contact with only the aluminum strand 3, respectively.
- a cross section of line 1 is shown.
- FIGS. 4E and 4F are cross-sectional views of the composite stranded wire 1 in which the strands arranged on the outermost periphery are both aluminum strands 3 and the aluminum-coated strands 2 are in contact with each other. It is shown.
- each of the composite twisted wires 1 in which the aluminum-coated strands 2 are arranged on the outermost periphery and all the aluminum-coated strands 2 are in contact with only the aluminum strands 3 are shown.
- a cross-sectional view is shown.
- the aluminum-coated strand 2 is in contact with only the aluminum strand 3 as shown in FIGS. 4 (a) to (d).
- the composite stranded wire 1 of the present invention is brought into close contact with the terminal when it is crimped to a terminal (not shown), and the adhesion between the aluminum-coated strand 2 and the aluminum strand is improved. This is preferable from the viewpoint of improving the tensile strength.
- the number of central strands constituting the composite twisted wire 1 may be one as shown in FIG. 1, for example, or may be a plurality of about 2 to 6, for example. From the viewpoint of improving the tensile strength of the composite stranded wire 1 of the present invention, the number of central strands constituting the composite stranded wire 1 is preferably one, three or seven, and one or three. More preferably. Moreover, it is preferable that the center strand which comprises the composite twisted wire 1 is the aluminum covering strand 2 from a viewpoint of improving the tensile strength of the composite twisted wire 1 of this invention.
- the central strand constituting the composite stranded wire 1 is composed of the aluminum-coated strand 2, and the number thereof is one, three, or seven. It is desirable that the number is preferably 1 or 3.
- the number of peripheral strands surrounding the central strand is, for example, 6 in the embodiment shown in FIG. 1, but is about 6 to 36 as shown in FIGS. 4 (a) to (i). There may be multiple.
- the number of peripheral strands constituting the composite stranded wire 1 is preferably 6 to 36, and is 6, 10, 12, 16 The number is more preferably 18 or 18, more preferably 6, 10 or 12, and still more preferably 6.
- the peripheral strand which comprises the composite twisted wire 1 is the aluminum strand 3 from a viewpoint of improving the tensile strength of the composite twisted wire 1 of this invention.
- the composite stranded wire 1 of the present invention is composed of an aluminum-coated strand 2 having a central strand and six aluminum strands surrounding the central strand. It is preferable to be composed of the wire 3 from the viewpoint of obtaining a composite stranded wire 1 that is reduced in weight and that has excellent tensile strength and electrical resistance over time.
- the composite stranded wire 1 of the present invention is reduced in weight and is excellent in tensile strength and electrical resistance over time.
- the reason why the composite twisted wire 1 of the present invention is excellent in the temporal stability of the tensile strength and the electrical resistance is considered to be based on the following reasons.
- the aluminum-coated strand 2 and the aluminum strand 3 on which the coating 2b made of aluminum or an aluminum alloy is formed are twisted, and the composite stranded wire
- the steel wire 2a used for the aluminum-coated strand 2 is hardly deformed at the crimped portion between the composite twisted wire 1 and the terminal, and the aluminum-coated strand
- the coating 2b made of aluminum or an aluminum alloy existing on the surface of the aluminum 2 and the aluminum wire 3 are plastically deformed to fill the voids inside the terminals.
- the coating between the coating 2b made of aluminum or aluminum alloy present on the surface of the aluminum-coated strand 2 and the aluminum strand 3 is less likely to occur, and friction Since resistance becomes large, it is thought that the steel wire 2a used for the aluminum covering element wire 2 becomes difficult to be pulled out from the terminal.
- the composite stranded wire 1 of the present invention is lightweight because the aluminum-coated strand 2 and the aluminum strand 3 are used as described above, and moreover, the tensile strength and the electrical resistance over time are stable. For example, it is expected to be used for applications such as electric wires used in automobile wire harnesses.
- Examples 1-8 By using a steel wire having a diameter of 0.2 mm as a steel wire and comprising a steel material of the type shown in Table 1, by immersing this steel wire in a molten aluminum bath (aluminum purity: 99.7% or more), After forming an aluminum film having a thickness shown in Table 1, an aluminum-coated elemental wire was produced by drawing so that the wire diameter was 0.2 mm. As for the thickness of the coating, an optical outer diameter measuring instrument (manufactured by Keyence Co., Ltd., product number: LS-7000) was used at any five locations of the aluminum-coated strand on which an aluminum coating having a length of 100 mm was formed. It was obtained by subtracting the wire diameter (0.2 mm) before forming the aluminum coating from the average value of the measured wire diameter of the aluminum-coated strand.
- the aluminum-coated strand obtained above is used as a central strand, and the peripheral strand has a diameter of 0.2 mm as a peripheral strand.
- the peripheral strand has a diameter of 0.2 mm as a peripheral strand.
- six aluminum strands made of aluminum alloy A1070 are used.
- the composite twisted wire was obtained by arranging and twisting together at a twist pitch of 12 mm.
- Example 1 instead of the aluminum-coated wire, the wire diameter is 0.2 mm, and the stainless steel wire is left as it is without being plated on the stainless steel wire made of stainless steel (SUS304). A composite twisted wire was produced in the same manner as in Example 1 except that it was used as.
- the composite stranded wire was placed on a crimp terminal [manufactured by Japan Terminal Co., Ltd., product number: 17521-M2], and the crimp terminal was pressed to connect the composite stranded wire and the crimp terminal to prepare a sample. A tensile test was performed on the prepared sample, and it was subjected to evaluation of pulling out or breaking of the central strand of the crimped portion.
- the breaking strength per one of each strand is as follows.
- Example 9 Examples 9 to 11 and Comparative Example 2
- Example 1 except that the aluminum-coated strand and the aluminum strand were changed as shown in Table 2, a composite stranded wire was produced in the same manner as in Example 1, and the center strand of the composite stranded wire was pulled out. Alternatively, the breakage was examined in the same manner as in Example 1. The results are shown in Table 2.
- Example 12 to 16 and Comparative Example 3 In Example 1, except that the aluminum-coated strand was changed as shown in Table 3, a composite stranded wire was prepared in the same manner as in Example 1, and the central strand of the composite stranded wire was pulled out or broken. Investigation was carried out in the same manner as in Example 1. The results are shown in Table 3.
- Example 17 to 21 and Comparative Example 4 In Example 1, except that the aluminum-coated strand was changed as shown in Table 4, a composite stranded wire was produced in the same manner as in Example 1, and the central strand of the composite stranded wire was pulled out or broken. Investigation was carried out in the same manner as in Example 1. The results are shown in Table 4.
- Example 2 In Example 1, except that the aluminum-coated wire and the aluminum wire were changed as shown in Table 5, a composite twisted wire was produced in the same manner as in Example 1, and the center wire was pulled out or broken. Investigation was carried out in the same manner as in Example 1. The results are shown in Table 5.
- Example 25 the composite aluminum wire was prepared in the same manner as in Example 1 except that the molten aluminum bath was changed as shown in Table 6 and the thickness of the aluminum coating was changed to 12 ⁇ m. Pulling out or breaking was examined. The results are shown in Table 6.
- Example 34 By using a stainless steel wire made of stainless steel (SUS304) as a steel wire and having a wire diameter of 0.2 mm, the stainless steel wire is immersed in a molten aluminum bath (aluminum purity: 99.7% or more), After an aluminum plating film having an average thickness of 8 ⁇ m was formed, the aluminum-coated elemental wire was produced by drawing so that the wire diameter was 0.2 mm. The thickness of the coating was measured in the same manner as in Example 1.
- Comparative Example 6 A stainless steel wire made of stainless steel (SUS304) and having a wire diameter of 0.2 mm was used as the steel wire, and this steel wire was immersed in a molten zinc bath to form a zinc plating film having a thickness of 3 ⁇ m. Thereafter, a zinc-coated strand was produced by drawing so that the wire diameter was 0.2 mm. The thickness of the coating was measured in the same manner as in Example 1.
- the diameter of the wire is 0.2 mm, and six aluminum strands made of aluminum (A1070) are arranged, A composite twisted wire was obtained by twisting together at a twist pitch of 12 mm.
- Comparative Example 7 As a steel wire, the wire diameter is 0.22 mm, a stainless steel wire made of stainless steel (SUS304) is used as a central strand, and a peripheral strand has a wire diameter of 0.2 mm around it. From aluminum (A1070) Six aluminum strands to be formed were arranged and twisted together at a twist pitch of 12 mm to obtain a composite twisted wire.
- SUS304 stainless steel wire made of stainless steel
- Comparative Example 8 An aluminum strand made of aluminum (A1070) and having a wire diameter of 0.2 mm is used as a central strand, and an aluminum strand having a wire diameter of 0.2 mm is made of aluminum (A1070) as a peripheral strand around it. Six wires were arranged and twisted together at a twist pitch of 12 mm to obtain a stranded wire.
- A is the measurement result of the electrical resistance of the composite stranded wire obtained in Example 34 over time
- B is the electrical resistance chronological stability of the composite stranded wire obtained in Comparative Example 6.
- C is the measurement result of the electrical resistance of the composite twisted wire obtained in Comparative Example 7 over time
- D is the measurement result of the electrical resistance of the twisted wire obtained in Comparative Example 8 over time. It is.
- the stranded wire is covered with polypropylene, cut to a length of 15 cm, and both ends thereof are terminals [male terminals used for connecting in-vehicle signal wires called commercially available 0.64 (025), which are plated with tin. By crimping a 0.2 mm thick brass terminal], a sample was prepared by crimping and connecting.
- the composite twisted wire obtained in Example 34 is the composite twisted wire obtained in Comparative Example 6 in which the dissimilar metal is in contact with the coating and the aluminum strand.
- the amount of change with time of the electrical resistance is small. It turns out that it is excellent.
- the composite stranded wire obtained in Example 34 (A in FIG. 5) is the stranded wire obtained in Comparative Example 8 (D in FIG. 5), that is, the center strand and the peripheral strand are both aluminum.
- the fact that the electrical resistance is more stable over time than the stranded wire that is an alloy is a characteristic point among the operational effects of the composite stranded wire of the present invention.
- the composite twisted wire of the present invention includes a strand made of a steel wire having an aluminum coating formed on the surface thereof, this steel wire suppresses a decrease in internal stress of the crimping part, It is considered that the increase in electrical resistance over time was suppressed.
- FIG. 6 is an optical micrograph of a cross section of a caulked portion of a sample obtained by caulking and connecting the composite stranded wire obtained in Comparative Example 7 to a terminal.
- FIG. 6 there is a stainless steel wire made of stainless steel (SUS304) at the center, and six aluminum strands made of aluminum (A1070) are arranged around it.
- a terminal surrounds the periphery.
- the aluminum strand is plastically deformed and fills the inside of the terminal without any gaps. It can be seen that the boundary with the aluminum wire is clearly present.
- FIG. 7 is an optical micrograph of a caulked portion of a sample obtained by caulking and connecting the composite stranded wire obtained in Example 34 to a terminal.
- an aluminum-coated strand obtained by forming an aluminum coating having an average thickness of 8 ⁇ m on a stainless steel wire made of one stainless steel (SUS304) is used as a central strand, and a peripheral strand around it.
- a stainless steel wire made of one stainless steel SUS304
- six aluminum strands made of aluminum A1070
- a terminal surrounds the periphery.
- this aluminum coating is integrated with the aluminum strand, so the boundary between them is It can be seen that it does not exist clearly.
- the composite stranded wire obtained in Example 34 there is a portion where the aluminum coating and the aluminum strand are integrated. Therefore, when the composite stranded wire is pulled from the terminal, the aluminum strand It is considered that the steel wire used for the aluminum coated element wire is difficult to be pulled out from the terminal because the coating of the aluminum or aluminum alloy on the surface and the aluminum element wire do not easily slide and the frictional resistance increases. It is done. As described above, in the composite stranded wire obtained in Example 34, the aluminum coating and the aluminum strand are integrated, so that the composite stranded wire of the present invention has an electrical resistance over time as shown in FIG. It is considered that the effect of excellent stability is exhibited.
- the composite twisted wire of the present invention is lightweight and excellent in temporal stability of tensile strength and electrical resistance, it can be suitably used for, for example, an automobile wire harness.
Landscapes
- Non-Insulated Conductors (AREA)
- Coating With Molten Metal (AREA)
Abstract
Description
(1)複数の素線が撚り合わされてなる複合撚線であって、アルミニウムまたはアルミニウム合金からなる被膜が鋼線の表面に形成されたアルミニウム被覆素線およびアルミニウムまたはアルミニウム合金からなるアルミニウム素線を有することを特徴とする複合撚線、
(2)アルミニウム被覆素線の鋼線を構成する鋼材が炭素鋼またはステンレス鋼である前記(1)に記載の複合撚線、
(3)最外周に配置される素線がいずれもアルミニウム素線である前記(1)または(2)に記載の複合撚線、および
(4)アルミニウム被覆素線がアルミニウム素線のみと接している前記(1)~(3)のいずれかに記載の複合撚線
に関する。
鋼線として線径が0.2mmであり、表1に示す種類の鋼材からなる鋼線を用い、この鋼線を溶融アルミニウム浴(アルミニウムの純度:99.7%以上)に浸漬することにより、表1に示される厚さのアルミニウム被膜を形成させた後、線径が0.2mmとなるように伸線することにより、アルミニウム被覆素線を作製した。なお、被膜の厚さは、長さが100mmであるアルミニウム被膜を形成させたアルミニウム被覆素線の任意の5カ所を光学式外径測定器〔(株)キーエンス製、品番:LS-7000〕を用いて0.1mm間隔で測定し、測定されたアルミニウム被覆素線の線径の平均値からアルミニウム被膜を形成する前の線径(0.2mm)を減算することによって求めた。
実施例1において、アルミニウム被覆素線の代わりに、線径が0.2mmであり、ステンレス鋼(SUS304)からなるステンレス鋼線にめっきを施さずに当該ステンレス鋼線をそのままの状態で中心素線として用いたこと以外は、実施例1と同様にして複合撚線を作製した。
複合撚線を圧着端子〔日本端子(株)製、品番:17521-M2〕に配設し、圧着端子を押圧することにより、複合撚線と圧着端子とを接続させて試料を作製した。作製した試料に対して引張試験を行ない、圧着部の中心素線の引き抜けまたは破断の評価に供した。
SUS304線からなるステンレス鋼線にアルミニウムを被覆したアルミニウム被覆素線:38N
SUS430線からなるステンレス鋼線にアルミニウムを被覆したアルミニウム被覆素線:35N
アルミニウム合金A1070からなるアルミニウム素線:9N
アルミニウム合金A5056からなるアルミニウム素線:14N
〔評価基準〕
×:中心素線が引き抜けた。
○:中心素線は引き抜けずに破断した。
実施例1において、アルミニウム被覆素線およびアルミニウム素線を表2に示すように変更したこと以外は、実施例1と同様にして複合撚線を作製し、複合撚線の中心素線の引き抜けまたは破断を実施例1と同様にして調べた。その結果を表2に示す。
実施例1において、アルミニウム被覆素線を表3に示すように変更したこと以外は、実施例1と同様にして複合撚線を作製し、複合撚線の中心素線の引き抜けまたは破断を実施例1と同様にして調べた。その結果を表3に示す。
実施例1において、アルミニウム被覆素線を表4に示すように変更したこと以外は、実施例1と同様にして複合撚線を作製し、複合撚線の中心素線の引き抜けまたは破断を実施例1と同様にして調べた。その結果を表4に示す。
実施例1において、アルミニウム被覆素線およびアルミニウム素線を表5に示すように変更したこと以外は、実施例1と同様にして複合撚線を作製し、中心素線の引き抜けまたは破断を実施例1と同様にして調べた。その結果を表5に示す。
実施例1において、溶融アルミニウム浴を表6に示すように変更し、アルミニウム被膜の厚さを12μmに変更したこと以外は、実施例1と同様にして複合撚線を作製し、中心素線の引き抜けまたは破断を調べた。その結果を表6に示す。
鋼線としてステンレス鋼(SUS304)からなり、線径が0.2mmであるステンレス鋼線を用い、このステンレス鋼線を溶融アルミニウム浴(アルミニウムの純度:99.7%以上)に浸漬することにより、平均厚さが8μmのアルミニウムのめっき被膜を形成させた後、線径が0.2mmとなるように伸線することにより、アルミニウム被覆素線を作製した。なお、被膜の厚さは、実施例1と同様にして測定した。
鋼線としてステンレス鋼(SUS304)からなり、線径が0.2mmであるステンレス鋼線を用い、この鋼線を溶融亜鉛浴に浸漬することにより、厚さ3μmの亜鉛のめっき被膜を形成させた後、線径が0.2mmとなるように伸線することにより、亜鉛被覆素線を作製した。なお、被膜の厚さは、実施例1と同様にして測定した。
鋼線として線径が0.22mmであり、ステンレス鋼(SUS304)からなるステンレス鋼線を中心素線として用い、その周囲に周辺素線として線径が0.2mmであり、アルミニウム(A1070)からなるアルミニウム素線6本を配置し、撚りピッチ12mmで撚り合わせることにより、複合撚線を得た。
アルミニウム(A1070)からなり、線径が0.2mmであるアルミニウム素線を中心素線として用い、その周囲に周辺素線としてアルミニウム(A1070)からなり、線径が0.2mmであるアルミニウム素線6本を配置し、撚りピッチ12mmで撚り合わせることにより、撚線を得た。
撚線をポリプロピレンで被覆し、15cmの長さに切断し、その両端に端子〔市販の0.64(025)と呼ばれる車載用信号線の結線に用いられるオス端子であって、スズめっきが施された厚さ0.2mmの黄銅製の端子〕をかしめることにより、圧着して接続し、試料を作製した。
2 アルミニウム被覆素線
2a 鋼線
2b 被膜
3 アルミニウム素線
4 供給ボビン
5 供給ボビン
Claims (4)
- 複数の素線が撚り合わされてなる複合撚線であって、アルミニウムまたはアルミニウム合金からなる被膜が鋼線の表面に形成されたアルミニウム被覆素線およびアルミニウムまたはアルミニウム合金からなるアルミニウム素線を有することを特徴とする複合撚線。
- アルミニウム被覆素線の鋼線を構成する鋼材が、炭素鋼またはステンレス鋼である請求項1に記載の複合撚線。
- 最外周に配置される素線が、いずれもアルミニウム素線である請求項1または2に記載の複合撚線。
- アルミニウム被覆素線が、アルミニウム素線のみと接している請求項1~3のいずれかに記載の複合撚線。
Priority Applications (10)
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US15/105,036 US20160322125A1 (en) | 2013-12-17 | 2014-12-16 | Composite twisted wire |
CA2933831A CA2933831C (en) | 2013-12-17 | 2014-12-16 | Composite twisted wire |
MX2016007983A MX365265B (es) | 2013-12-17 | 2014-12-16 | Cable trenzado de material mixto. |
CN201480068238.6A CN105830171B (zh) | 2013-12-17 | 2014-12-16 | 复合绞线 |
SG11201604910SA SG11201604910SA (en) | 2013-12-17 | 2014-12-16 | Composite twisted wire |
EP14871712.7A EP3086326A4 (en) | 2013-12-17 | 2014-12-16 | Composite twisted wire |
KR1020167015800A KR102135666B1 (ko) | 2013-12-17 | 2014-12-16 | 복합 연선 |
AU2014367816A AU2014367816B2 (en) | 2013-12-17 | 2014-12-16 | Composite twisted wire |
PH12016501148A PH12016501148B1 (en) | 2013-12-17 | 2016-06-14 | Composite twisted wire |
US16/388,077 US20190244723A1 (en) | 2013-12-17 | 2019-04-18 | Composite twisted wire |
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JP2013-260697 | 2013-12-17 | ||
JP2013260697 | 2013-12-17 | ||
JP2014070616A JP6324164B2 (ja) | 2013-12-17 | 2014-03-28 | 複合撚線 |
JP2014-070616 | 2014-03-28 |
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US15/105,036 A-371-Of-International US20160322125A1 (en) | 2013-12-17 | 2014-12-16 | Composite twisted wire |
US16/388,077 Division US20190244723A1 (en) | 2013-12-17 | 2019-04-18 | Composite twisted wire |
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WO2015093460A1 true WO2015093460A1 (ja) | 2015-06-25 |
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EP (1) | EP3086326A4 (ja) |
JP (1) | JP6324164B2 (ja) |
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CN (1) | CN105830171B (ja) |
AU (1) | AU2014367816B2 (ja) |
CA (1) | CA2933831C (ja) |
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2014
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- 2014-12-16 MX MX2016007983A patent/MX365265B/es active IP Right Grant
- 2014-12-16 US US15/105,036 patent/US20160322125A1/en not_active Abandoned
- 2014-12-16 CN CN201480068238.6A patent/CN105830171B/zh not_active Expired - Fee Related
- 2014-12-16 CA CA2933831A patent/CA2933831C/en not_active Expired - Fee Related
- 2014-12-16 SG SG11201604910SA patent/SG11201604910SA/en unknown
- 2014-12-16 AU AU2014367816A patent/AU2014367816B2/en not_active Ceased
- 2014-12-16 KR KR1020167015800A patent/KR102135666B1/ko active IP Right Grant
- 2014-12-16 EP EP14871712.7A patent/EP3086326A4/en not_active Withdrawn
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2016
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2019
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Also Published As
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CA2933831A1 (en) | 2015-06-25 |
KR102135666B1 (ko) | 2020-07-20 |
AU2014367816B2 (en) | 2019-01-24 |
US20190244723A1 (en) | 2019-08-08 |
CN105830171A (zh) | 2016-08-03 |
JP6324164B2 (ja) | 2018-05-16 |
US20160322125A1 (en) | 2016-11-03 |
MX2016007983A (es) | 2017-01-11 |
PH12016501148A1 (en) | 2016-07-25 |
JP2015135798A (ja) | 2015-07-27 |
CN105830171B (zh) | 2018-09-18 |
KR20160099565A (ko) | 2016-08-22 |
EP3086326A1 (en) | 2016-10-26 |
EP3086326A4 (en) | 2017-06-21 |
PH12016501148B1 (en) | 2016-07-25 |
MX365265B (es) | 2019-05-27 |
CA2933831C (en) | 2020-02-11 |
SG11201604910SA (en) | 2016-08-30 |
AU2014367816A1 (en) | 2016-07-07 |
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