CN107475554A - A kind of production technology of microalloy copper busbar - Google Patents

A kind of production technology of microalloy copper busbar Download PDF

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Publication number
CN107475554A
CN107475554A CN201710694074.3A CN201710694074A CN107475554A CN 107475554 A CN107475554 A CN 107475554A CN 201710694074 A CN201710694074 A CN 201710694074A CN 107475554 A CN107475554 A CN 107475554A
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copper
microalloy
copper busbar
busbar
content
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CN201710694074.3A
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徐高杰
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
    • B21C37/047—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire of fine wires
    • 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
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/03—Making non-ferrous alloys by melting using master alloys
    • 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
    • C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Metal Extraction Processes (AREA)

Abstract

The present invention relates to a kind of production technology of microalloy copper busbar, microalloy copper busbar silver 0.001~0.01%, titanium 0.001~0.01%, cerium 0.001~0.01%, boron 0.001~0.01%, cobalt content 0.002~0.005%, chromium content 0.002~0.005%, nickel content 0.002~0.005%, content of niobium 0.002~0.005%, the indium content 0.002~0.005% of preparation；Conductance >=100%IACS, softening temperature are more than 350 degree, and tensile strength is more than 270MPa, and elongation percentage is more than 10%.

Description

A kind of production technology of microalloy copper busbar
Technical field
The present invention relates to a kind of production technology of nonferrous materials, more particularly to a kind of production work of microalloy copper busbar Skill.
Background technology
Copper busbar is also known as copper bar or copper bus-bar, rectangular cross-section or chamfering（Fillet）The long conductor of rectangle, in circuit Play a part of to convey electric current and connect electrical equipment.In recent years, what country increased basic industry and autonomous innovation invests money in developing power The construction of the mega projects such as degree, large hydropower station, nuclear power station, subway, airport, bullet train, new high-tech product, builds to project If the copper busbar technical performance of various electrical equipment conducting elements used in is such as：Conductance, hardness, toughness, bending, it is conductive The security performance of element is such as：Higher requirement is proposed in terms of weight, temperature rise, current load；Copper busbar has a safety feature The bad technical performance depending on copper busbar again.Chinese patent CN 201010538377.4, CN201410829160.7, CN200510040810.0 etc. discloses the production method of related copper busbar, but can not meet that the copper busbar of high performance requirements should Use field.
The content of the invention
It is female it is an object of the invention to provide a kind of microalloy copper of excellent performance for the above-mentioned technical problem of prior art The production technology of line.
To reach above-mentioned purpose, the present invention is achieved by the following technical solutions：
A kind of described copper busbar, it is by weight percentage, composed of the following components：Silver 0.001~0.01%, titanium 0.001~ 0.01%th, cerium 0.001~0.01%, boron 0.001~0.01%, cobalt content 0.002~0.005%, chromium content 0.002~0.005%, Nickel content 0.002~0.005%, content of niobium 0.002~0.005%, indium content 0.002~0.005%；Copper, silver, titanium, cerium, boron, The element such as cobalt, chromium, nickel, niobium total content is more than 99.99%, and oxygen content is not more than 3ppm.
A kind of production technology of described microalloy copper busbar comprises the following steps：
1）High-purity copper weld pool：Using No. 1 standard cathode copper as raw material, using vacuum electron beam melting, solidification, impurity element is removed； Its electron gun working vacuum degree is 6 × 10-3Pa, working chamber's vacuum are 6 × 10-3Pa, accelerating potential 50KV；The height of preparation The copper content of fine copper ingot casting is more than 99.999%, and conductance is more than 102.5%IACS, and oxygen content is less than 0.0003%；
2）Continuous up-casting：To be closed among high purity copper copper, fine silver, 10% bronze medal titanium intermediate alloy, 10% bronze medal cerium intermediate alloy, 10% bronze medal boron In gold, 10% bronze medal cobalt intermediate alloy, 10% bronze medal chromium intermediate alloy, 10% cupro-nickel intermediate alloy, 10% bronze medal niobium intermediate alloy, 10% copper and indium Between alloy be raw material, melted after raw material preheating is dried in smelting apparatus, copper liquid covered using charcoal and graphite flakes Surface, using copper bar is drawn on traction link seat, then copper bar enters take-up；The temperature difference by water inlet, the water outlet of crystallizer is small In 5 DEG C；The temperature of smelting furnace is 1165 DEG C~1200 DEG C, and the temperature of holding furnace is 1155 DEG C~1160 DEG C, the covering of copper liquid surface The thickness of charcoal is 100-150mm, and the thickness of covering graphite phosphorus powder is 20-50mm；That draws copper bar on traction link seat draws bar speed For 500mm/min, it is Ф 21mm to draw shank diameter；
3）Strip off the skin：By step 2）The copper bar of gained is stripped off the skin, and a diameter of of copper bar is Ф 20mm after stripping off the skin；
4）It is continuously extruded：With step 3）The copper bar of preparation is raw material, and copper busbar blank is prepared using continuously extruded unit；It is continuous to squeeze The rotating speed of press is 5r/min；The ratio between sectional area of continuously extruded expansion deformation maximum secting area and copper busbar blank is more than 5, even The length of continuous extruding expansion deformation is 70mm, and the width of continuously extruded expansion deformation is more than 180mm, the workplace of continuous extruder Gap is 1.2mm, and the temperature that continuously extruded expansion deformation prepares copper busbar blank is more than 750 degree, is existed using 25% alcohol water blend The copper busbar of high temperature is cooled to less than 50 degree in 10 seconds, its grain size of the copper busbar blank of preparation is less than 0.01mm；
5）Drawing：With step 4）The copper busbar blank of preparation is draw textured using hydraulic drawbench, carries out a time stretching Deformation, stretcher strain coefficient is 1.05-1.15, and the speed of stretcher strain is less than 10m/min, using 15% emulsion as drawing Pull out lubricating fluid；
6）Aligning：With step 5）The copper busbar of preparation is aligned using straightener, and straightening deformation coefficient is 1.01, straightening deformation Stubborn every meter of the degree of the torsion of copper busbar is not more than 0.5mm afterwards, and every meter of the flatness of copper busbar is not more than 1mm, directly every meter of the degree of copper busbar No more than 0.5mm；
7）Cutting：Step 6）Copper busbar after straightening deformation is cut.
A kind of production technology of high-performance microalloy copper copper busbar provided by the invention has the advantages that：
1st, high purity copper, fine silver, copper titanium intermediate alloy, copper cerium intermediate alloy, copper boron intermediate alloy etc. are raw material, not only ensure that copper The electric conductivity of the bus and mechanical property of copper busbar, welding performance, buckling performance, cutting ability, softening resistant performance are excellent Meet to use in the case that working condition is poor.
2nd, copper section bar torsion stubborn every meter of the degree of the invention prepared using aligning process is not more than 0.5mm, the flatness of copper section bar Every meter is not more than 1mm, and every meter of the directly degree of copper section bar is not more than 0.5mm, meets the requirement of the higher form and position tolerance of copper busbar.
3rd, copper busbar prepared by the present invention uses continual extruding technology, and its surface quality is high, flow is short, efficient, energy-conservation.This Invention saves the processes such as ingot casting heating, hot extrusion compared with traditional handicraft, and beneficial effect is to save energy consumption more than 50%, is become a useful person Rate reaches more than 80%.
Embodiment
With reference to specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to This.
Embodiment 1
A kind of production technology of high-performance microalloy copper busbar of the present embodiment 1 comprises the following steps：
High-purity copper weld pool-continuous up-casting-strips off the skin-continuously extruded-drawing-aligning-cutting
Specific step is：
1）High-purity copper weld pool：Using No. 1 standard cathode copper as raw material, using vacuum electron beam melting, solidification, impurity element is removed； Its electron gun working vacuum degree is 6 × 10-3Pa, working chamber's vacuum are 6 × 10-3Pa, accelerating potential 50KV；The height of acquisition The copper content of fine copper ingot casting is more than 99.999%, and conductance is more than 102.5%IACS, and oxygen content is less than 0.0003%；
2）Continuous up-casting：To be closed among high purity copper copper, fine silver, 10% bronze medal titanium intermediate alloy, 10% bronze medal cerium intermediate alloy, 10% bronze medal boron In gold, 10% bronze medal cobalt intermediate alloy, 10% bronze medal chromium intermediate alloy, 10% cupro-nickel intermediate alloy, 10% bronze medal niobium intermediate alloy, 10% copper and indium Between alloy be raw material, melted after raw material preheating is dried in smelting apparatus, copper liquid covered using charcoal and graphite flakes Surface, using copper bar is drawn on traction link seat, then copper bar enters take-up；The temperature difference by water inlet, the water outlet of crystallizer is small In 5 DEG C；The temperature of smelting furnace is 1165 DEG C, and the temperature of holding furnace is 1155 DEG C, and the thickness of copper liquid surface covering charcoal is 100mm, the thickness of covering graphite phosphorus powder is 50mm；The bar speed of drawing for drawing copper bar on traction link seat is 500mm/min, draws shank diameter For Ф 21mm；
3）Strip off the skin：By step 2）The copper bar of gained is stripped off the skin, and a diameter of of copper bar is Ф 20mm after stripping off the skin；
4）It is continuously extruded：With step 3）The copper bar of preparation is raw material, and copper busbar blank is prepared using continuously extruded unit；It is continuous to squeeze The rotating speed of press is 5r/min；The ratio between sectional area of continuously extruded expansion deformation maximum secting area and copper busbar blank is more than 5, even The length of continuous extruding expansion deformation is 70mm, and the width of continuously extruded expansion deformation is more than 180mm, the workplace of continuous extruder Gap is 1.2mm, and the temperature that continuously extruded expansion deformation prepares copper busbar blank is more than 750 degree, is existed using 25% alcohol water blend The copper busbar of high temperature is cooled to less than 50 degree in 10 seconds, its grain size of the copper busbar blank of preparation is less than 0.01mm；
5）Drawing：With step（2）The copper busbar blank of preparation is draw textured using hydraulic drawbench, carries out a time stretching Deformation, stretcher strain coefficient are 1.10, the speed 8m/min of stretcher strain, using 15% emulsion as Lubrication Solution for Drawing；
6）Aligning：With step（3）The copper busbar of preparation is aligned using straightener, and straightening deformation coefficient is 1.01, and aligning becomes Stubborn every meter of the degree of the torsion of copper busbar is not more than 0.5mm after shape, and every meter of the flatness of copper busbar is not more than 1mm, and the straight degree of copper busbar is every Rice is not more than 0.5mm；
7）Cutting：Step（4）Copper busbar after straightening deformation is cut.
Copper busbar silver 0.001~0.01%, titanium 0.001~0.01%, cerium 0.001~0.01%, the boron of above-mentioned steps preparation 0.001~0.01%, cobalt content 0.002~0.005%, chromium content 0.002~0.005%, nickel content 0.002~0.005%, niobium contain Amount 0.002~0.005%, indium content 0.002~0.005%；The element total content such as copper, silver, titanium, cerium, boron, cobalt, chromium, nickel, niobium is big In 99.99%, oxygen content is not more than 3ppm；Conductance >=100%IACS, softening temperature are more than 350 degree, and tensile strength is more than 270MPa, elongation percentage are more than 10%, and 130 degree of bendings of copper busbar are not ftractureed, and the torsion of copper busbar twists every meter of degree and is not more than 0.5mm, and copper is female Every meter of the flatness of line is not more than 1mm, and every meter of the directly degree of copper busbar is not more than 0.5mm.
Above-described embodiment is only used for illustrating the inventive concept of the present invention, rather than the restriction to rights protection of the present invention, All changes for carrying out unsubstantiality to the present invention using this design, all should fall into protection scope of the present invention.

Claims (1)

  1. A kind of 1. production technology of microalloy copper busbar, it is characterised in that：Described microalloy copper busbar by weight percentage, It is composed of the following components：Silver 0.001~0.01%, titanium 0.001~0.01%, cerium 0.001~0.01%, boron 0.001~0.01%, cobalt Content 0.002~0.005%, chromium content 0.002~0.005%, nickel content 0.002~0.005%, content of niobium 0.002~ 0.005%th, indium content 0.002~0.005%；The element such as copper, silver, titanium, cerium, boron, cobalt, chromium, nickel, niobium total content is more than 99.99%, Oxygen content is not more than 3ppm；A kind of production technology of described microalloy copper busbar comprises the following steps：
    1）High-purity copper weld pool：Using No. 1 standard cathode copper as raw material, using vacuum electron beam melting, solidification, impurity element is removed； Its electron gun working vacuum degree is 6 × 10-3Pa, working chamber's vacuum are 6 × 10-3Pa, accelerating potential 50KV；The height of acquisition The copper content of fine copper ingot casting is more than 99.999%, and conductance is more than 102.5%IACS, and oxygen content is less than 0.0003%；
    2）Continuous up-casting：To be closed among high purity copper copper, fine silver, 10% bronze medal titanium intermediate alloy, 10% bronze medal cerium intermediate alloy, 10% bronze medal boron In gold, 10% bronze medal cobalt intermediate alloy, 10% bronze medal chromium intermediate alloy, 10% cupro-nickel intermediate alloy, 10% bronze medal niobium intermediate alloy, 10% copper and indium Between alloy be raw material, melted after raw material preheating is dried in smelting apparatus, copper liquid covered using charcoal and graphite flakes Surface, using copper bar is drawn on traction link seat, then copper bar enters take-up；The temperature difference by water inlet, the water outlet of crystallizer is small In 5 DEG C；The temperature of smelting furnace is 1165 DEG C~1200 DEG C, and the temperature of holding furnace is 1155 DEG C~1160 DEG C, the covering of copper liquid surface The thickness of charcoal is 100-150mm, and the thickness of covering graphite phosphorus powder is 20-50mm；That draws copper bar on traction link seat draws bar speed For 500mm/min, it is Ф 21mm to draw shank diameter；
    3）Strip off the skin：By step 2）The copper bar of gained is stripped off the skin, and a diameter of of copper bar is Ф 20mm after stripping off the skin；
    4）It is continuously extruded：With step 3）The copper bar of preparation is raw material, and microalloy copper busbar blank is prepared using continuously extruded unit； The rotating speed of continuous extruder is 5r/min；The sectional area of continuously extruded expansion deformation maximum secting area and microalloy copper busbar blank The ratio between be more than 5, the length of continuously extruded expansion deformation be 70mm, and the width of continuously extruded expansion deformation is more than 180mm, continuously crowded The working clearance of press is 1.2mm, and the temperature that continuously extruded expansion deformation prepares microalloy copper busbar blank is more than 750 degree, adopted The microalloy copper busbar of high temperature is cooled to less than 50 degree in 10 seconds with 25% alcohol water blend, the microalloy copper of preparation Its grain size of bus blank is less than 0.01mm；
    5）Drawing：With step（2）The microalloy copper busbar blank of preparation is draw textured using hydraulic drawbench, is carried out together Secondary stretcher strain, stretcher strain coefficient are 1.05-1.15, and the speed of stretcher strain is less than 10m/min, using 15% emulsion As Lubrication Solution for Drawing；
    6）Aligning：With step（3）The microalloy copper busbar of preparation is aligned using straightener, and straightening deformation coefficient is 1.01, Stubborn every meter of the degree of the torsion of microalloy copper busbar is not more than 0.5mm after straightening deformation, and every meter of the flatness of copper busbar is not more than 1mm, micro- Every meter of the directly degree of alloy copper busbar is not more than 0.5mm；
    7）Cutting：Step（4）Microalloy copper busbar after straightening deformation is cut；
    Microalloy copper busbar conductance >=100%IACS prepared by above-mentioned steps, softening temperature are more than 350 degree, and tensile strength is more than 270MPa, elongation percentage are more than 10%, and the 130 degree of bendings of microalloy copper busbar are not ftractureed, and the torsion of microalloy copper busbar twists every meter of degree less In 0.5mm, every meter of the flatness of microalloy copper busbar is not more than 1mm, and every meter of the directly degree of microalloy copper busbar is not more than 0.5mm.
CN201710694074.3A 2017-08-15 2017-08-15 A kind of production technology of microalloy copper busbar Pending CN107475554A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108220544A (en) * 2018-01-09 2018-06-29 北京有色金属研究总院 A kind of preparation method of railway power through track high conductivity copper conductor
CN109903882A (en) * 2019-03-28 2019-06-18 江苏华威铜业有限公司 A kind of highly corrosion resistant copper busbar and its preparation process
CN110923499A (en) * 2019-12-27 2020-03-27 宁波博威合金材料股份有限公司 Ce and B-containing titanium bronze alloy strip and preparation method thereof
CN111733345A (en) * 2020-06-05 2020-10-02 宁波金田铜业(集团)股份有限公司 Copper-zinc-nickel alloy electrode bus and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002129262A (en) * 2000-10-24 2002-05-09 Hitachi Cable Ltd Extra-fine copper alloy wire and its production method
CN101899587A (en) * 2006-07-21 2010-12-01 株式会社神户制钢所 Copper alloy sheets for electrical/electronic part
CN104259238A (en) * 2014-07-25 2015-01-07 陕西省军工（集团）陕铜有限责任公司 Processing method of oxygen-free copper sectional materials
CN106077125A (en) * 2016-08-22 2016-11-09 绍兴市力博电气有限公司 A kind of production technology of pole coil copper section bar

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002129262A (en) * 2000-10-24 2002-05-09 Hitachi Cable Ltd Extra-fine copper alloy wire and its production method
CN101899587A (en) * 2006-07-21 2010-12-01 株式会社神户制钢所 Copper alloy sheets for electrical/electronic part
CN104259238A (en) * 2014-07-25 2015-01-07 陕西省军工（集团）陕铜有限责任公司 Processing method of oxygen-free copper sectional materials
CN106077125A (en) * 2016-08-22 2016-11-09 绍兴市力博电气有限公司 A kind of production technology of pole coil copper section bar

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108220544A (en) * 2018-01-09 2018-06-29 北京有色金属研究总院 A kind of preparation method of railway power through track high conductivity copper conductor
CN109903882A (en) * 2019-03-28 2019-06-18 江苏华威铜业有限公司 A kind of highly corrosion resistant copper busbar and its preparation process
CN110923499A (en) * 2019-12-27 2020-03-27 宁波博威合金材料股份有限公司 Ce and B-containing titanium bronze alloy strip and preparation method thereof
CN110923499B (en) * 2019-12-27 2021-02-05 宁波博威合金材料股份有限公司 Ce and B-containing titanium bronze alloy strip and preparation method thereof
CN111733345A (en) * 2020-06-05 2020-10-02 宁波金田铜业(集团)股份有限公司 Copper-zinc-nickel alloy electrode bus and preparation method thereof
CN111733345B (en) * 2020-06-05 2021-09-28 宁波金田铜业(集团)股份有限公司 Copper-zinc-nickel alloy electrode bus and preparation method thereof

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Application publication date: 20171215