CN104561865B - A kind of preparation method of high-strength highly-conductive pure copper wire material - Google Patents

A kind of preparation method of high-strength highly-conductive pure copper wire material Download PDF

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Publication number
CN104561865B
CN104561865B CN201410845916.7A CN201410845916A CN104561865B CN 104561865 B CN104561865 B CN 104561865B CN 201410845916 A CN201410845916 A CN 201410845916A CN 104561865 B CN104561865 B CN 104561865B
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China
Prior art keywords
copper wire
pure copper
wire
melting
strength highly
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CN201410845916.7A
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Chinese (zh)
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CN104561865A (en
Inventor
任结
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安徽森海高新电材有限公司
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Priority to CN201410845916.7A priority Critical patent/CN104561865B/en
Publication of CN104561865A publication Critical patent/CN104561865A/en
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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/02Making alloys by melting
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/08Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • H01B1/026Alloys based on copper
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/02Single bars, rods, wires, or strips

Abstract

The invention discloses a kind of preparation method of high-strength highly-conductive pure copper wire material, belong to materials processing technology field.The wire is matrix with high-purity catholyte copper, mixing preheating, melting, insulation, traction wire drawing crystallization and annealing.Its TR specifications specific insulation is≤0.01707 Ω cm3, and its tensile strength reaches more than 420MPa.The performance requirement of electronics industry wire can preferably be met, it can also be used to it is required that height leads Materials with High Strength field.And with process is simple, advantage with low cost.

Description

A kind of preparation method of high-strength highly-conductive pure copper wire material

Technical field

The invention belongs to materials processing technology field, more specifically to a kind of high-strength highly-conductive pure copper wire material The preparation method of material.

Background technology

Fine copper has conduction very high, heat conductivility and plastic deformation ability higher, and with good corrosion resistance Can, it is widely used in industry as good conductor.However, although fine copper has the advantages that high conductivity, its tensile strength pole It is low, it is generally only 120-160MPa.In addition, fine copper has plastic deformation ability high, but because of its extremely low Static Recrystallization Temperature feature and cause easily processing hardening, so as to inhibit further plastic deformation.Therefore, pure copper material is applied to lead mostly Line, conductor and cooler etc., it is difficult to meet various application demands as structural material.General founding production fine copper electrical conductivity is high More than 95%ICAS, intensity is less than 250MPa, and using processing cure process, intensity can be brought up under 350MPa, but electric conductivity Drop, particularly elongation percentage are less than 5%, limit its engineer applied scope.Fine copper alloy is produced using powder metallurgy, usual 200 ~250MPa colds pressing under 800~900 DEG C of sintering process, and its electrical conductivity is less than 200MPa, elongation percentage in 80~90%IACS, intensity 25~30%, sintered more than 930 DEG C, then again under the complicated technology such as pressure finishing or forging, powder metallurgy fine copper performance can connect Nearly founding fine copper.

The conductance and tensile strength of the fine copper bulk prepared by right above-mentioned several method are still relatively low, it is impossible to meet certain The use of a little special occasions.

The content of the invention

1st, the problem to be solved

For the above-mentioned problems in the prior art, the present invention provides a kind of high-strength highly-conductive pure copper wire material Preparation method, it mainly solves two deficiencies of general industry copper conductor, 1, resistivity it is higher, 2, intensity it is not high, present invention system Preparation Method can be greatly improved the resistivity and intensity of copper conductor, have larger carrying to industrial robot energization communication conductor material property It is high.

2nd, technical scheme

In order to solve the above problems, it is an object of the invention to provide a kind of system of high-strength highly-conductive pure copper wire material Preparation Method,

In order to realize technical purpose of the invention, its technical scheme is:A kind of high-strength highly-conductive pure copper wire material Preparation method, it is characterised in that comprise the following steps:

(1)High-strength highly-conductive pure copper wire material is with high-purity catholyte copper that purity is more than 99.957% as base Body;

(2)Strict removal surface foul is simultaneously preheated to 80-100 DEG C;

(3)Using power frequency electromagnet smelting furnace melting, by melting, electromagnetic agitation integration, smelting temperature control 1150 ± 10 DEG C of scopes;

(4)By the molten copper liquid through power frequency electromagnet smelting furnace melting after complete by middle part transition warehouse from power frequency electromagnet melting To holding furnace, holding furnace takes electromagnetism to heat up, stirring, and between 1120-1130 DEG C, soaking time is its temperature control for stove overflow 1h;

(5)Drawn by high-precision servo motor and be drawn into the gauge copper wire bases of Ф 8.0, and crystallisation by cooling;

(6)Using continuous annealing wire drawing mode, annealing process temperature control is between 500-550 DEG C;

Electric conductivity and tensile strength using the pure copper wire material obtained by preparation method of the present invention can have both, tissue Uniformly, precipitated phase small and dispersed, alloy is cheap, and its TR specifications specific insulation is≤0.01707 Ω cm3, and tension is strong Degree reaches more than 420MPa, can preferably meet the performance requirement of copper conductor in electronics industry.

3rd, beneficial effect

Compared to prior art, beneficial effects of the present invention are:

(1)Preparation method of the present invention can improve the electric conductivity of pure copper copper conductor;

(2)Preparation method product crystal boundary of the present invention is close to perfect hexahedron, it is ensured that lattice is complete, greatly reduces crystal A large amount of microdefects of interior generation, such as point defect and dislocation, intensity increase, and can have both electric conductivity and tensile strength, adapt to Industrial robot is powered, communication high conduction requirement, adapts to industrial robot high-frequency Working motion intensity requirement;

(3)Preparation method of the present invention also has the advantages that process is simple, with low cost, reasonable in design.

Specific embodiment

The present invention is further described below with reference to specific embodiment.

A kind of preparation method of high-strength highly-conductive pure copper wire material, comprises the following steps:

(1)High-strength highly-conductive pure copper wire material is with high-purity catholyte copper that purity is more than 99.957% as base Body;

(2)Strict removal surface foul is simultaneously preheated to 80-100 DEG C;

(3)Using power frequency electromagnet smelting furnace melting, by melting, electromagnetic agitation integration, smelting temperature control 1150 ± 10 DEG C of scopes, it is ensured that cathode copper fully melts and is well mixed;

(4)By the molten copper liquid through power frequency electromagnet smelting furnace melting after complete by middle part transition warehouse from power frequency electromagnet melting To holding furnace, holding furnace takes electromagnetism to heat up, stirring, and between 1120-1130 DEG C, soaking time is its temperature control for stove overflow 1h;

(5)Drawn by high-precision servo motor and be drawn into the gauge copper wire bases of Ф 8.0, and crystallisation by cooling;

(6)Using continuous annealing wire drawing mode, annealing process temperature control makes through drawing generation between 500-550 DEG C Copper cash processing hardening disappear, and generation crystallize again, product crystal boundary is close to perfect hexahedron.

Electric conductivity and tensile strength using the pure copper wire material obtained by preparation method of the present invention can have both, tissue Uniformly, precipitated phase small and dispersed, alloy is cheap, and its TR specifications specific insulation is≤0.01707 Ω cm3, is much better than Industrial circular copper wire is most high-grade≤0.01715 Ω cm3 requirements, tensile strength reaches more than 420MPa, far above industrial circle The requirement of copper cash >=389MPa, can preferably meet the performance requirement of copper conductor in electronics industry.

Schematical above that the present invention and embodiments thereof are described, the description is not restricted.So, if One of ordinary skill in the art is enlightened by it, in the case where the invention objective is not departed from, without creative design Go out frame mode and the embodiment similar to the technical scheme, protection scope of the present invention all should be belonged to.

Claims (1)

1. a kind of preparation method of high-strength highly-conductive pure copper wire material, it is characterised in that:Comprise the following steps:
(1) high-strength highly-conductive pure copper wire material is with high-purity catholyte copper that purity is more than 99.957% as matrix;
(2) strict removal surface foul and it is preheated to 80-100 DEG C;
(3) power frequency electromagnet smelting furnace melting is used, by melting, electromagnetic agitation integration, smelting temperature is controlled at 1150 ± 10 DEG C Scope;
(4) the molten copper liquid through power frequency electromagnet smelting furnace melting after complete is overflow by middle part transition warehouse from power frequency electromagnet smelting furnace Holding furnace is flow to, holding furnace takes electromagnetism to heat up, stirring, and between 1120-1130 DEG C, soaking time is 1h to its temperature control;
(5) drawn by high-precision servo motor and be drawn into the gauge copper wire bases of Ф 8.0, and crystallisation by cooling;
(6) continuous annealing wire drawing mode is used, annealing process temperature control is between 500-550 DEG C;
The pure copper conductor material that the preparation method of the high-strength highly-conductive pure copper wire material is obtained, its TR specifications volume electricity Resistance rate is≤0.01707 Ω cm3, its tensile strength reaches more than 420MPa.
CN201410845916.7A 2014-12-31 2014-12-31 A kind of preparation method of high-strength highly-conductive pure copper wire material CN104561865B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410845916.7A CN104561865B (en) 2014-12-31 2014-12-31 A kind of preparation method of high-strength highly-conductive pure copper wire material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410845916.7A CN104561865B (en) 2014-12-31 2014-12-31 A kind of preparation method of high-strength highly-conductive pure copper wire material

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CN104561865A CN104561865A (en) 2015-04-29
CN104561865B true CN104561865B (en) 2017-06-16

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109593972A (en) * 2018-12-14 2019-04-09 安徽楚江高新电材有限公司 A kind of new energy photovoltaic power generation net interconnection conductors

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1955329A (en) * 2005-10-26 2007-05-02 中国科学院金属研究所 Superhigh strength high conduction block pure copper material and preparation method
CN202549490U (en) * 2011-08-29 2012-11-21 苏州准盛机电有限公司 Continuous annealing machine for wire drawing of copper wire
CN102974793A (en) * 2012-12-10 2013-03-20 台州学院 Method and equipment for continuously producing high-purity single crystal copper
CN203212610U (en) * 2013-03-15 2013-09-25 常州凯旺金属材料有限公司 Continuous type annealing furnace
CN203470504U (en) * 2013-09-04 2014-03-12 江阴华电新材料有限公司 Copper wire drawing and annealing all-in-one machine
CN203846080U (en) * 2014-04-03 2014-09-24 广东华声电器股份有限公司 Multiend wire-drawing continuous annealing device for copper conductor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1955329A (en) * 2005-10-26 2007-05-02 中国科学院金属研究所 Superhigh strength high conduction block pure copper material and preparation method
CN202549490U (en) * 2011-08-29 2012-11-21 苏州准盛机电有限公司 Continuous annealing machine for wire drawing of copper wire
CN102974793A (en) * 2012-12-10 2013-03-20 台州学院 Method and equipment for continuously producing high-purity single crystal copper
CN203212610U (en) * 2013-03-15 2013-09-25 常州凯旺金属材料有限公司 Continuous type annealing furnace
CN203470504U (en) * 2013-09-04 2014-03-12 江阴华电新材料有限公司 Copper wire drawing and annealing all-in-one machine
CN203846080U (en) * 2014-04-03 2014-09-24 广东华声电器股份有限公司 Multiend wire-drawing continuous annealing device for copper conductor

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Address after: 238300 Wuhu City, Anhui Province, Wuwei County mud town industrial area

Patentee after: ANHUI CHUJIANG HIGH-TECH ELECTRIC WIRE CO., LTD.

Address before: 241000 Wuhu City, Anhui Province, Wuwei County mud town industrial area

Patentee before: ANHUI SENHAI HI-TECH ELECTRIC MATERIAL CO., LTD.