CN1731534A - Oxygen-free copper generatrix and its preparing method - Google Patents
Oxygen-free copper generatrix and its preparing method Download PDFInfo
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- CN1731534A CN1731534A CN 200510040810 CN200510040810A CN1731534A CN 1731534 A CN1731534 A CN 1731534A CN 200510040810 CN200510040810 CN 200510040810 CN 200510040810 A CN200510040810 A CN 200510040810A CN 1731534 A CN1731534 A CN 1731534A
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Abstract
The invention relates to oxygen-free copper buses and method for making same, which is characterized in that: in the material the percentage content of copper and silver is more than 99.96%, percentage content of oxygen is less than 0.001%. The making process comprises the steps of: 1 smelting: putting electrolytic copper or cathode copper in the smelting stove and heating up to keep the temperature of copper liquid at 1150Deg C.+/-20Deg C., on the surface of copper liquid covered charcoal layer; 2 continuous casting: putting a hollow crystallizer which employs water bags for cooling into the copper liquid, the copper liquid coagulates into solid which is made into copper bar by the drawing device on the top; 3 continuously compressing the copper bar got form step 2 into preform body in a compressing device; 4 cold-drawing shaping: putting the preform body of step3 on the drawing device for shaping and making into oxygen-free copper buses.
Description
Technical field:
The present invention relates to a kind of electrician and use copper busbar, be specifically related to a kind of electrician and use oxygen-free copper busbar and preparation method thereof.Belong to electrical alloy material technology field.
Background technology:
Copper busbar is to make electrical equipment and electrical winding coil, high and low voltage electrical equipment switch contact and power supplying and distributing equipment installation conductor material.Copper busbar can be divided soft copper bus and rigid copper bus by its purposes.Traditional copper busbar smelting technology adopts the method for " drawing casting down ", and copper liquid has the chance that contacts with oxygen when cast, so can not be controlled to oxygen content.Therefore its oxygen content is higher, and resistance is bigger, and ductility is relatively poor, 90 ° of easy breaches of bending.Quality to product is brought influence.
Summary of the invention:
The objective of the invention is to overcome above-mentioned deficiency, low oxygen-free copper busbar of a kind of oxygen content and preparation method thereof is provided.
The object of the present invention is achieved like this: a kind of oxygen-free copper busbar is characterized in that: copper+silver content in the material 〉=99.96%, oxygen content≤0.001%.
Its preparation method comprises following processing step:
Step 1, melting place 1# cathode copper or tough cathode in the calcining kiln, and the kindling temperature keeps 1150 ℃ ± 20 ℃ of copper liquid temperatures, and charcoal layer is covered on copper liquid surface, and copper liquid is isolated with oxygen all the time;
Step 2, continuous up-casting directly stretch into hollow mould in the copper liquid, and hollow mould adopts the cooling of water spacer, and copper liquid condenses into solid in hollow mould, and the solid upper end is made into the copper bar with the drafter drawing-off;
Step 3, continuously extruded step 2 gained copper bar is placed continuously extruded one-tenth blank in the extruder;
Step 4, cold-drawn moulding place cold-drawn moulding on the drawbench with step 3 gained blank, make oxygen-free copper busbar.
Because the present invention adopts the method for " continuous up-casting, water are every cooling ", so the chance that copper liquid does not contact with oxygen when continuous casting is can be controlled to oxygen content.Oxygen-free copper busbar of the present invention is the winding of motor and transformer, the preferred materials of high and low voltage electrical equipment.Its key technical indexes is:
One, material: copper+silver content 〉=99.96%, oxygen content≤0.001%;
Two, mechanical performance
(1) percentage elongation 〉=40% (soft oxygen-free copper busbar)
(2) tensile strength 〉=206N/mm
2, breach or estuary (hard oxygen-free copper busbar) do not appear in surface curvature
Three, resistance
(1) soft oxygen-free copper busbar resistivity≤0.01710 Ω .mm/m
2
(2) hard oxygen-free copper busbar resistivity≤0.01760 Ω .mm/m
2
Four, the oxygen-free copper busbar product specification is:
Width≤120mm, cross section (wide * thick)≤1440mm
2All size, maximum specification 12mm * 120mm.
Compare with traditional copper busbar, the present invention has following advantage:
1, copper content is pure, than ordinary copper bus pure 0.06%;
2, oxygen content is low, oxygen content≤0.001%;
3, resistance is less, conducts electricity very well, and is higher by 1% than ordinary copper bus;
4, extensibility is big, and percentage elongation is higher by 5% than ordinary copper bus;
Embodiment:
Embodiment 1: prepare soft oxygen-free copper busbar
Step 1, melting place the 1# cathode copper in the calcining kiln, and the kindling temperature keeps 1150 ℃ of copper liquid temperatures, and charcoal layer is covered on copper liquid surface, and copper liquid is isolated with oxygen all the time;
Step 2, continuous up-casting directly stretch into hollow mould in the copper liquid, and hollow mould adopts the cooling of water spacer, and copper liquid condenses into solid in hollow mould, and the solid upper end is made into the copper bar with the drafter drawing-off;
Step 3, continuously extruded step 2 gained copper bar is placed continuously extruded one-tenth blank on the extruder;
Step 4, cold-drawn moulding place cold-drawn moulding on the drawbench with step 3 gained blank, make oxygen-free copper busbar.
Step 5, vacuum annealing place vacuum annealing in the vacuum annealing furnace with step 4 gained oxygen-free copper busbar, and 560 ℃ of annealing temperatures promptly get soft oxygen-free copper busbar.
The key technical indexes:
1, material: copper+silver content=99.97%, oxygen content=0.00099%;
2, percentage elongation: 42
3, resistance: 0.01708 Ω .mm/m
2
Embodiment 2: prepare hard oxygen-free copper busbar
Step 1, melting place tough cathode in the calcining kiln, and the kindling temperature keeps 1170 ℃ of copper liquid temperatures, and charcoal layer is covered on copper liquid surface, and copper liquid is isolated with oxygen all the time;
All the other steps are with example 1.
The key technical indexes:
1, material: copper+silver content=99.96%, oxygen content=0.001%;
2, tensile strength: 206N/mm
2, breach or triangle do not appear in surface curvature;
3, resistance: 0.01760 Ω .mm/m
2
Claims (2)
1, a kind of oxygen-free copper busbar is characterized in that: copper+silver content in the material 〉=99.96%, oxygen content≤0.001%.
2, the preparation method of a kind of oxygen-free copper busbar according to claim 1 is characterized in that it comprises following processing step:
Step 1, melting place 1# cathode copper or tough cathode in the calcining kiln, and the kindling temperature keeps 1150 ℃ ± 20 ℃ of copper liquid temperatures, and charcoal layer is covered on copper liquid surface;
Step 2, continuous up-casting directly stretch into hollow mould in the copper liquid, and hollow mould adopts the cooling of water spacer, and copper liquid condenses into solid in hollow mould, and the solid upper end is made into the copper bar with the drafter drawing-off;
Step 3, continuously extruded step 2 gained copper bar is placed continuously extruded one-tenth blank in the extruder;
Step 4, cold-drawn moulding place cold-drawn moulding on the drawbench with step 3 gained blank, make oxygen-free copper busbar.
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CNB2005100408100A CN100337288C (en) | 2005-06-27 | 2005-06-27 | Oxygen-free copper generatrix and its preparing method |
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CNB2005100408100A CN100337288C (en) | 2005-06-27 | 2005-06-27 | Oxygen-free copper generatrix and its preparing method |
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CN1731534A true CN1731534A (en) | 2006-02-08 |
CN100337288C CN100337288C (en) | 2007-09-12 |
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CN102034563A (en) * | 2010-11-10 | 2011-04-27 | 福州市广福有色金属制品有限公司 | Copper bus bar with high strength, high conductivity and high toughness and preparation method thereof |
CN1933037B (en) * | 2006-08-25 | 2011-08-03 | 邢台鑫晖铜业特种线材有限公司 | Method for producing copper alloy contact wire with excellent comprehensive performance |
CN102220511A (en) * | 2011-05-10 | 2011-10-19 | 济南宝世达实业发展有限公司 | Oxygen-free copper tube and machining method thereof |
CN101719527B (en) * | 2009-12-03 | 2011-10-26 | 绍兴市力博电气有限公司 | Production technique of copper strips for solar modules |
CN102262924A (en) * | 2011-06-09 | 2011-11-30 | 山东中佳新材料有限公司 | Large-section oxygen-free copper busbar and preparation method |
CN102605192A (en) * | 2012-03-12 | 2012-07-25 | 江阴新华宏铜业有限公司 | Preparation method for oxygen-free copper tube for magnetron |
CN102825093A (en) * | 2012-09-07 | 2012-12-19 | 白银有色集团股份有限公司 | Production technology for hollow abnormal-shape electric anaerobic copper plate |
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CN104438426A (en) * | 2013-02-27 | 2015-03-25 | 滁州华尊电气科技有限公司 | Process for producing aluminum and aluminum-alloy buses for electrical engineering |
CN104599787A (en) * | 2014-12-26 | 2015-05-06 | 广福鑫(福建)有色金属工业有限公司 | Preparation method of high-performance copper busbar |
CN105112829A (en) * | 2015-08-06 | 2015-12-02 | 平高集团有限公司 | Hard copper busbar annealing method, processed hard copper busbar product and conductive part |
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CN88210952U (en) * | 1988-04-06 | 1988-11-09 | 周渤海 | Oxygen-free copper universal continuous cast elevating machine |
CN2046775U (en) * | 1989-04-12 | 1989-11-01 | 山东烟台铜材厂 | Up-lead continuous casting maching |
CN2109902U (en) * | 1990-06-19 | 1992-07-15 | 洪伟 | Improved equipment for continuous producting non-oxyen copper rod |
CN1064941A (en) * | 1992-03-06 | 1992-09-30 | 北方有色金属黄金联营集团铜材加工厂 | Oxygen in Oxygen-Free Copper standard substance and preparation method |
CN1103612A (en) * | 1993-12-11 | 1995-06-14 | 山东烟台铜材厂 | Drawing-continuous casting-stretch process for producing oxygen-free copper pipe |
JP3918397B2 (en) * | 2000-04-11 | 2007-05-23 | 三菱マテリアル株式会社 | Adhesion-resistant oxygen-free copper rough wire, its manufacturing method and manufacturing apparatus |
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2005
- 2005-06-27 CN CNB2005100408100A patent/CN100337288C/en active Active
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CN1933037B (en) * | 2006-08-25 | 2011-08-03 | 邢台鑫晖铜业特种线材有限公司 | Method for producing copper alloy contact wire with excellent comprehensive performance |
CN101719527B (en) * | 2009-12-03 | 2011-10-26 | 绍兴市力博电气有限公司 | Production technique of copper strips for solar modules |
CN102034563A (en) * | 2010-11-10 | 2011-04-27 | 福州市广福有色金属制品有限公司 | Copper bus bar with high strength, high conductivity and high toughness and preparation method thereof |
CN102220511A (en) * | 2011-05-10 | 2011-10-19 | 济南宝世达实业发展有限公司 | Oxygen-free copper tube and machining method thereof |
CN102220511B (en) * | 2011-05-10 | 2012-11-21 | 济南宝世达实业发展有限公司 | Oxygen-free copper tube and machining method thereof |
CN102262924A (en) * | 2011-06-09 | 2011-11-30 | 山东中佳新材料有限公司 | Large-section oxygen-free copper busbar and preparation method |
CN102605192A (en) * | 2012-03-12 | 2012-07-25 | 江阴新华宏铜业有限公司 | Preparation method for oxygen-free copper tube for magnetron |
CN102825093A (en) * | 2012-09-07 | 2012-12-19 | 白银有色集团股份有限公司 | Production technology for hollow abnormal-shape electric anaerobic copper plate |
CN104438426A (en) * | 2013-02-27 | 2015-03-25 | 滁州华尊电气科技有限公司 | Process for producing aluminum and aluminum-alloy buses for electrical engineering |
CN103572184A (en) * | 2013-10-17 | 2014-02-12 | 河南科技大学 | Preparation method of high-strength silver-copper alloy material |
CN103572184B (en) * | 2013-10-17 | 2015-07-22 | 河南科技大学 | Preparation method of high-strength silver-copper alloy material |
CN104599787A (en) * | 2014-12-26 | 2015-05-06 | 广福鑫(福建)有色金属工业有限公司 | Preparation method of high-performance copper busbar |
CN104599787B (en) * | 2014-12-26 | 2017-01-25 | 广福鑫(福建)有色金属工业有限公司 | Preparation method of high-performance copper busbar |
CN105112829A (en) * | 2015-08-06 | 2015-12-02 | 平高集团有限公司 | Hard copper busbar annealing method, processed hard copper busbar product and conductive part |
CN107790966A (en) * | 2016-09-01 | 2018-03-13 | 江西江冶实业有限公司 | A kind of 1030 DEG C of superhigh temperature vacuum weldings TU0 oxygen-free copper preparation methods |
CN107755451A (en) * | 2017-09-30 | 2018-03-06 | 重庆鸽牌电线电缆有限公司 | The preparation method of Large Copacity phase modifier argentiferous copper bar |
CN107971363A (en) * | 2017-12-01 | 2018-05-01 | 浙江力博实业股份有限公司 | The continuously extruded method for preparing high-purity high-conductivity copper bar of multi-pass |
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Address after: 214423 Zhouzhuang Town, Jiangyin, Jiangsu Patentee after: JIANGYIN ELECTRICAL ALLOY CO., LTD. Address before: 214423 Zhouzhuang Town, Jiangyin, Jiangsu Patentee before: Jiangyin Electrical Alloy Co., Ltd. |