CN104103338A - Ultralong high-conductivity cable copper tape and production technology thereof - Google Patents
Ultralong high-conductivity cable copper tape and production technology thereof Download PDFInfo
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- CN104103338A CN104103338A CN201410300030.4A CN201410300030A CN104103338A CN 104103338 A CN104103338 A CN 104103338A CN 201410300030 A CN201410300030 A CN 201410300030A CN 104103338 A CN104103338 A CN 104103338A
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Abstract
The invention discloses an ultralong high-conductivity cable copper tape and a production technology thereof. The copper tape comprises the following components by weight percentage: 99.935-99.945% of Cu, P greater than 0 and less than or equal to 0.001%, O greater than 0 and less than or equal to 0.001%, Ce greater than 0 and less than or equal to 0.06%, and impurities less than 0.055%. The production technology of the copper tape comprises the steps of casting, heating, hot rolling, face milling, rough rolling, edge trimming, cleaning, finish rolling, finished product annealing, finished product shearing, packing and warehousing. The production technology is short in production cycle; processing is easy; the conductivity of the produced copper tape reaches above 100% IACS (International Annealed Copper Standard); and the length of the finished copper tape can reach above 8000m. The production technology comprehensively adopts four deoxidation techniques (including rare earth element Ce addition), so that the oxygen content of the copper tape is controlled below 10ppm.
Description
Technical field
The invention belongs to non-ferrous metals processing field, particularly the high cable copper strips of a kind of overlength and production technology thereof.
Background technology
At present, the problem that the production of copper strip for electric cable exists is that conductance is low, ductility is bad, and production cost is high, is difficult for forming the large-scale production of continuous batch.
Summary of the invention
The object of the invention is to provide a kind of high cable copper strips of overlength with high conduction, high ductibility, and the productive technology of short flow that can effectively reduce costs.
The high cable copper strips of a kind of overlength, its weight ratio ingredient is: Cu:99.935-99.945%, 0 < P≤0.001%, 0 < 0≤0.001%, 0 < Ce≤0.06%, impurity summation < 0.055%.
Preferably, described 0 < Ce≤0.04%.
Preferably, described Ce is 0.04%.
The present invention also provides the production technology of the high cable copper strips of above-mentioned overlength, comprises the following steps: shear-packing of founding-heating-hot rolling-milling face-roughing-trimming-cleaning-finish rolling-finished products-finished product warehouse-in.
During melting, add phosphor copper, control the phosphorus content of melt between 0-10ppm; Copper cerium alloy is added in melt.
Preferably, described founding adopts frequency cored induction furnace to carry out melting, and smelting temperature is 1200-1210 ℃, and smelting time is 2.5-3h; The qualified metallic solution converter of smelting component is to standing insulation 20-30min in holding furnace; Forging type is selected semi-continuous casting, and casting temperature is controlled at 1150-1170 ℃, and casting speed is controlled at 6-8m/h left and right, and cooling water pressure is controlled at 20-60kPa.
Preferably, in described fusion-casting process, adopt following steps:
(1) strengthen charcoal cladding thickness: adopt charcoal as coverture, in fusion process, charcoal cladding thickness is controlled at 50-100mm, at holding stage, is controlled at 150-200mm;
(2) nitrogen protection melting: respectively smelting furnace, insulation furnace atmosphere and casting cycle are carried out to nitrogen protection, effectively isolated outside air contacts with melt, thereby controls oxygen content in melt, and being blown into nitrogen parameter is pressure 0.3-0.4MPa, flow 20-22Nm
3/ h.
(3) add RE elements of Ce: copper cerium intermediate alloy is added in melt.Between rare earth and oxygen, there is extremely strong affinity, generate high-melting-point low-density rare earth compound, during melting, float in slag, thereby purification matrix, rare earth element has a significant effect to the grain refining of red copper as-cast structure and homogenizing simultaneously, along with the increase of content of rare earth, average grain size reduces.After deliberation, Rare-Earth Ce element deoxidation effect is best, and optimum addition is 0.04%.
(4) carbon monoxide bottom blowing deoxidation degasification: by being embedded in the blowing brick with holes in smelting furnace and holding furnace bottom flame retardant coating, be blown into the mist of carbon monoxide or carbon monoxide and nitrogen, to the processing of blowing of copper liquid, can make the obvious decrease of oxygen concentration in ingot casting, its every stove carbon monoxide amount of being blown into is 1.2-1.4Nm
3.
Red copper is easily combined with oxygen and is formed Cu in high melt process
20, after solidification and crystallization, be distributed in grain boundaries, greatly reduce electric conductivity and the processing characteristics of material, and traditional processing technology only can be by Control for Oxygen Content at 50-120ppm, and it is unstable to control effect, can not meet the requirement of high conductivity red copper product, and adopt above-mentioned four kinds of methods can be effectively by the Control for Oxygen Content in melt below 10ppm.
Preferably, described in add thermal recovery walking beam furnace, heating-up temperature is 930-950 ℃, be 2.5-3.5h heating time.
Preferably, described hot-rolled billet thickness 16.5-17.0 * 430-440mm, volume is heavily 8 tons, after milling face, roughing, THICKNESS CONTROL, between 0.8-1.2mm, is passed through finishing rolling control finished product thickness between 0.2-0.5mm after trimming, cleaning.
Preferably, finished products is used the soft state end properties of air cushion furnace annealing regulation, annealing temperature 630-660 ℃, annealing speed 60-90m/min.
Preferably, finished product prevents from while shearing wiping to scratch producing, and limit portion burr staggered floor is less than 1mm, and burr height is less than 0.01mm, guarantees length requirement.
Effect of the present invention is: production technology of the present invention is with short production cycle, easily processing, more than the copper strips conductance of production reaches 100%IACS, more than finished product length can reach 8000m.The comprehensive four kinds of deoxy technologies (comprise and add rare earth element ce) that adopt, control the oxygen content of product below 10ppm.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Specification: the cable copper strip of thickness 0.4mm, processing technology adopts:
1, founding: select Cu-CATH-1, prepare burden by weight, charge ratio reference: Cu:99.935-99.945%, 0 < P≤0.001%, 0 < Ce≤0.06%, impurity summation < 0.055%, each component sum is absolutely, drop into frequency cored induction furnace and carry out melting, 1200 ℃ of smelting temperatures, the qualified metallic solution converter of smelting component is to standing insulation .30min in holding furnace; Select semi-continuous casting, 1150 ℃ of casting temperatures, casting speed 7m/h, cooling water pressure 50kPa, ingot casting specification is 210 * 630 * 6700mm.In fusion-casting process by the Control for Oxygen Content in melt below 10ppm, adopt following four kinds of methods: (1) adopts charcoal covering protection, and in fusion process, charcoal cladding thickness is controlled at 80mm, at holding stage, is controlled at 180mm.(2) Rare-Earth Ce that the mass percent of interpolation total amount is 0.04%; (3) fire door nitrogen blowing: respectively smelting furnace, insulation furnace atmosphere and casting cycle are carried out to nitrogen protection, effectively isolated outside air contacts with melt, thereby controls oxygen content in melt, and being blown into nitrogen parameter is pressure 0.35MPa, flow 21Nm
3/ h.(4) carbon monoxide bottom blowing realizes melt deoxygenation: by being embedded in the blowing brick with holes in smelting furnace and holding furnace bottom flame retardant coating, be blown into carbon monoxide, to the processing of blowing of copper liquid, can make the obvious decrease of oxygen concentration in ingot casting, its every stove carbon monoxide amount of being blown into is 1.3Nm
3.
2, ingot casting heating: adopt walking beam furnace to carry out ingot blank heating, require ingot casting heating uniformity good, Heating Zone Temperature is 930 ℃, and heat preservation zone temperature is 960 ℃, and tapping temperature is not less than 820 ℃, heating time 3h, micro-reducing atmosphere.
3, hot rolling: rolling mill practice is 210-175-115-72-45-30-21-17 (mm).In the operation of rolling, mill speed is 120m/min, and rolling finishing temperature is 385 ℃, rolls rear specification 17 * 440mm.
4, cold rolling: roughing in cold rolling minute and finish rolling, roughing technique is 14.5-9.5-6.0-4.0-2.5-1.5-1.0-0.8 (mm), finish-rolling process is 0.8-0.63-0.50-0.40 (mm).In cold-rolled process, roughing speed is 165m/min, and finish rolling speed is 142m/min
5, finished products: use the soft state end properties of air cushion furnace annealing regulation, in annealing process, strictly control annealing temperature, speed, 630 ℃, furnace temperature 1# district, 660 ℃, 2#-4# district, 630 ℃, 5# district, annealing speed 60m/min.In annealing process, alkali liquid temperature is 70 ℃, acid strength 8%, and 75 ℃ of passivation temperatures, passivation concentration 0.08%, 65 ℃ of hot water temperatures, pH value is neutral.
6, finished product is sheared: during shearing, prevent zone face to cause new defect, must not have cutter to print, limit portion burr staggered floor is less than 1mm, and burr height is less than 0.01mm, guarantees length requirement.
7, product inspection: according to mechanical property and the electric conductivity of standard GB/T/T228, GB/T4340.1 and GB/T351 difference measurement products, tensile strength is 223MPa, and elongation is 44.3%, and hardness is 50HV, conductance is 101%IACS, more than making finished product length reaches 8000m.In this finished product, percentage by weight component is: Cu:99.941%, P:0.0008%, 0:0.001%, Ce:0.039%, impurity summation: 0.0182%.
8, finished product is qualified, packing warehouse-in.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. the high cable copper strips of overlength, it is characterized in that, its weight ratio ingredient is: Cu:99.935-99.945%, 0 < P≤0.001%, 0 < 0≤0.001%, 0 < Ce≤0.06%, impurity summation < 0.055%.
2. the high cable copper strips of overlength according to claim 1, is characterized in that, described 0 < Ce≤0.04%.
3. the high cable copper strips of overlength according to claim 1, is characterized in that, the mass ratio of described Ce is 0.04%.
4. the production technology of the high cable copper strips of overlength as described in claim 1,2 or 3, is characterized in that, comprises the following steps: shear-packing of founding-heating-hot rolling-milling face-roughing-trimming-cleaning-finish rolling-finished products-finished product warehouse-in.
5. production technology according to claim 4, is characterized in that, described founding adopts frequency cored induction furnace to carry out melting, and smelting temperature is 1200-1210 ℃, and smelting time is 2.5-3h; The qualified metallic solution converter of smelting component is to standing insulation 20-30min in holding furnace; Forging type is selected semi-continuous casting, and casting temperature is controlled at 1150-1170 ℃, and casting speed is controlled at 6-8m/h left and right, and cooling water pressure is controlled at 20-60kPa.
6. production technology according to claim 4, is characterized in that, adopts following steps in described fusion-casting process:
(1) strengthen charcoal cladding thickness: adopt charcoal as coverture, in fusion process, charcoal cladding thickness is controlled at 50-100mm, at holding stage, is controlled at 150-200mm;
(2) nitrogen protection melting: respectively smelting furnace, insulation furnace atmosphere and casting cycle are carried out to nitrogen protection, effectively isolated outside air contacts with melt, thereby controls oxygen content in melt, and being blown into nitrogen parameter is pressure 0.3-0.4MPa, flow 20-22Nm
3/ h.
(3) add RE elements of Ce: copper cerium intermediate alloy is added in melt, and optimum addition is 0.04%;
(4) carbon monoxide bottom blowing deoxidation degasification: by being embedded in the blowing brick with holes in smelting furnace and holding furnace bottom flame retardant coating, be blown into the mist of carbon monoxide or carbon monoxide and nitrogen, to the processing of blowing of copper liquid, can make the obvious decrease of oxygen concentration in ingot casting, its every stove carbon monoxide amount of being blown into is 1.2-1.4Nm
3.
7. production technology according to claim 4, is characterized in that, described in add thermal recovery walking beam furnace, heating-up temperature is 930-950 ℃, be 2.5-3.5h heating time.
8. production technology according to claim 4, it is characterized in that, described hot-rolled billet thickness 16.5-17.0 * 430-440mm, volume is heavily 8 tons, after milling face, roughing, THICKNESS CONTROL, between 0.8-1.2mm, is passed through finishing rolling control finished product thickness between 0.2-0.5mm after trimming, cleaning.
9. production technology according to claim 4, is characterized in that, finished products is used the soft state end properties of air cushion furnace annealing regulation, annealing temperature 630-660 ℃, annealing speed 60-90m/min.
10. production technology according to claim 3, is characterized in that, finished product prevents from while shearing wiping to scratch producing, and limit portion burr staggered floor is less than 1mm, and burr height is less than 0.01mm, guarantees length requirement.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107443012A (en) * | 2017-06-23 | 2017-12-08 | 安徽皖宏电气设备有限公司 | A kind of transformer production oxygen-free transformer copper strip new production process |
| CN111112332A (en) * | 2018-10-31 | 2020-05-08 | 中铝华中铜业有限公司 | Processing technology of rolled copper foil blank |
| CN111500890A (en) * | 2020-04-27 | 2020-08-07 | 美的集团股份有限公司 | Copper pipe and manufacturing method thereof, heat exchanger, air conditioner and refrigeration equipment |
| CN111549254A (en) * | 2020-04-29 | 2020-08-18 | 铜陵有色金属集团股份有限公司金威铜业分公司 | Oxygen-free copper-based microalloy and preparation method and application thereof |
| CN111690838A (en) * | 2020-06-22 | 2020-09-22 | 宁波金田铜业(集团)股份有限公司 | Easily-wound transformer-used red copper strip and preparation method thereof |
| CN113088653A (en) * | 2021-04-02 | 2021-07-09 | 安徽楚江科技新材料股份有限公司 | Production process of large-size automobile parts |
| CN114959350A (en) * | 2022-05-31 | 2022-08-30 | 西安理工大学 | High-performance Cu-Hf-RE alloy and preparation method thereof |
| CN115491541A (en) * | 2022-09-24 | 2022-12-20 | 宁波金田铜管有限公司 | Oxygen-free copper pipe for heat pipe and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1436868A (en) * | 2003-01-01 | 2003-08-20 | 江西省科学院应用物理研究所 | High-strength and high-conductivity copper-base material and its prepn process |
| CN101274363A (en) * | 2008-05-06 | 2008-10-01 | 浙江海亮股份有限公司 | Method for continuously converting and casting oxygen-free copper ingot |
| CN102199711A (en) * | 2011-04-15 | 2011-09-28 | 中天合金技术有限公司 | Production method of high-precision ultralong oxygen-free copper strip |
| CN103882253A (en) * | 2014-04-16 | 2014-06-25 | 黄学志 | Rare earth oxygen-free copper based alloy and production process thereof |
-
2014
- 2014-06-30 CN CN201410300030.4A patent/CN104103338B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1436868A (en) * | 2003-01-01 | 2003-08-20 | 江西省科学院应用物理研究所 | High-strength and high-conductivity copper-base material and its prepn process |
| CN101274363A (en) * | 2008-05-06 | 2008-10-01 | 浙江海亮股份有限公司 | Method for continuously converting and casting oxygen-free copper ingot |
| CN102199711A (en) * | 2011-04-15 | 2011-09-28 | 中天合金技术有限公司 | Production method of high-precision ultralong oxygen-free copper strip |
| CN103882253A (en) * | 2014-04-16 | 2014-06-25 | 黄学志 | Rare earth oxygen-free copper based alloy and production process thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王刚 等: "稀土在国内铜及铜合金加工中的作用", 《上海有色金属》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107443012A (en) * | 2017-06-23 | 2017-12-08 | 安徽皖宏电气设备有限公司 | A kind of transformer production oxygen-free transformer copper strip new production process |
| CN111112332A (en) * | 2018-10-31 | 2020-05-08 | 中铝华中铜业有限公司 | Processing technology of rolled copper foil blank |
| CN111500890A (en) * | 2020-04-27 | 2020-08-07 | 美的集团股份有限公司 | Copper pipe and manufacturing method thereof, heat exchanger, air conditioner and refrigeration equipment |
| CN111549254A (en) * | 2020-04-29 | 2020-08-18 | 铜陵有色金属集团股份有限公司金威铜业分公司 | Oxygen-free copper-based microalloy and preparation method and application thereof |
| CN111690838A (en) * | 2020-06-22 | 2020-09-22 | 宁波金田铜业(集团)股份有限公司 | Easily-wound transformer-used red copper strip and preparation method thereof |
| CN111690838B (en) * | 2020-06-22 | 2021-10-15 | 宁波金田铜业(集团)股份有限公司 | Easily-wound transformer-used red copper strip and preparation method thereof |
| CN113088653A (en) * | 2021-04-02 | 2021-07-09 | 安徽楚江科技新材料股份有限公司 | Production process of large-size automobile parts |
| CN114959350A (en) * | 2022-05-31 | 2022-08-30 | 西安理工大学 | High-performance Cu-Hf-RE alloy and preparation method thereof |
| CN115491541A (en) * | 2022-09-24 | 2022-12-20 | 宁波金田铜管有限公司 | Oxygen-free copper pipe for heat pipe and preparation method thereof |
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| CN104103338B (en) | 2016-08-24 |
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Effective date of registration: 20230726 Address after: 6 households including No. 3, obt building, Shifangyuan, Linqing Economic Development Zone, Liaocheng, Shandong 250000 Patentee after: Zhongse Zhengrui (Shandong) Copper Industry Co.,Ltd. Address before: 252600 North Head of East Second Ring Road, Linqing City, Shandong Province Patentee before: CNMC ALBETTER ALBRONZE Co.,Ltd. |
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