CN102303216A - Method for producing copper-clad aluminum bar - Google Patents
Method for producing copper-clad aluminum bar Download PDFInfo
- Publication number
- CN102303216A CN102303216A CN201110250139A CN201110250139A CN102303216A CN 102303216 A CN102303216 A CN 102303216A CN 201110250139 A CN201110250139 A CN 201110250139A CN 201110250139 A CN201110250139 A CN 201110250139A CN 102303216 A CN102303216 A CN 102303216A
- Authority
- CN
- China
- Prior art keywords
- copper
- clad aluminum
- aluminum bar
- rolling
- welding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 64
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 66
- 229910052802 copper Inorganic materials 0.000 claims abstract description 66
- 239000010949 copper Substances 0.000 claims abstract description 66
- 238000005096 rolling process Methods 0.000 claims abstract description 18
- 238000000137 annealing Methods 0.000 claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 238000005098 hot rolling Methods 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 238000004806 packaging method and process Methods 0.000 claims abstract description 5
- 238000005097 cold rolling Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 239000004411 aluminium Substances 0.000 claims description 15
- 238000005516 engineering process Methods 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 abstract 3
- 238000005253 cladding Methods 0.000 abstract 1
- 238000010924 continuous production Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 7
- 239000007769 metal material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009931 pascalization Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
- Metal Rolling (AREA)
Abstract
The invention relates to a method for producing a copper-clad aluminum bar. The method comprises the following steps of: removing oxidation layers from the surfaces of a copper belt and an aluminum bar; feeding the copper belt and the aluminum bar into a cladding machine for molding and welding; rolling and tightening by using a cold-rolling mill; saw-cutting according to a required size, and continuously feeding copper-clad aluminum bar materials which are cut off into an intermediate-frequency heating furnace for pre-heating; feeding the copper-clad aluminum bar materials into a continuous heating furnace; operating the copper-clad aluminum bar materials through a roller bed and then feeding the copper-clad aluminum bar materials into a hot-rolling mill for finish rolling and cooling; drawing and setting the rolled copper-clad aluminum bar materials, and performing fixed-length saw-cutting according to a process; putting the copper-clad aluminum bar materials which are subjected to the fixed-length cutting into a vacuum annealing furnace, performing bright annealing, and thus obtaining a finished product; and putting the finished product on an automatic packaging line, packaging the finished product and then warehousing. By coating a copper layer outside an aluminum core, the method for producing the copper-clad aluminum bar has the advantages of low cost, continuous production, short process flow, high production efficiency, mechanical operation and high bonding strength of interfaces; and requirements of electric equipment can be met.
Description
Technical field
The present invention relates to a kind of production method of copper clad aluminum wire.
Background technology
Copper clad aluminum wire be a kind of be matrix with aluminium, the outer copper that coats makes the bimetallic that forms metallurgical binding between permanent atom between them, surface-brightening, rounding, zero defect.It is the energy cheaply of the high-quality of copper being stablized electric conductivity and aluminium, with lower contact resistance, and the novel conductor material that is combined as a whole.Instead of pure copper bar comprehensively; The weight ratio of copper clad aluminum wire is: copper accounts for 40%; Aluminium accounts for 60%; It under the same size situation fine copper row's 2-2.5 double-length; Current-carrying capacity is fine copper row's 90.7%; Sectional area increase about 10% can reach identical current-carrying capacity with fine copper fully during selection, and its mechanical property and electrical property all can satisfy requirement of client.Copper clad aluminum wire advantage: 1, good electrical conductivity: copper aluminium volume ratio is 15% or 20% copper clad aluminum wire electrical property, and compare it to exchange current-carrying capacity be 90.7% of fine copper with copper bar.2, in light weight: the density of copper clad aluminum wire only is fine copper row's 37%-40%, and the length of equivalent weight (volume) is 2-2.5 times of fine copper row.3, good mechanical performance: have good tensile strength, flexible and percentage elongation.4, combine between firm copper aluminium: in various environment temperatures, reach nonvolatil atom intergranular between two kinds of different metal materials and combine, and copper layer (zinc-plated, zinc layer) is evenly distributed, do not have any physical imperfection.5, good ductility and reliability: through special Technology for Heating Processing, have certain plasticity, help punching, shearing, bending machining product and do not ftracture, do not separate.
What the external compound row's product of production of copper aluminium generally adopted is quiet liquid extrusion technique; It is that copper and aluminium are processed composite blank, utilizes high hydrostatic pressure and processes the solid phase combination between deformation rate effect realization copper, the aluminium greatly, and distortion evenly; But can not produce continuously, production efficiency is lower.The technology of domestic employing is airtight casting, and cost is high, and loss is big, and technological requirement is complicated, and manufacturing cost is high, unsuitable production in enormous quantities the in enormous quantities, can not really accomplish energy-conserving and environment-protective.
The weak point of above-mentioned copper clad aluminum wire of the prior art is: existing manufacturing technique, and metallurgical binding is relatively poor between aluminium, the copper, causes contact resistance to strengthen; Resistance of deformation and plasticity are relatively poor, and resistivity is higher, and the mechanical performance of workpiece often can not be satisfied the demand, and how to address these problems, and are the technical barriers of this area.
Summary of the invention
The technical problem that the present invention will solve provides that a kind of step is simple, metallurgical binding better, resistivity is lower and plasticity and the toughness production method of copper clad aluminum wire preferably.
For solving the problems of the technologies described above, the production method of copper clad aluminum wire provided by the invention comprises the steps:
A, copper strips, aluminium row is carried out surperficial deoxidation layer handle;
B, then goes into coating machine moulding welding with copper strips, aluminium dispatch, tightens up with cold-rolling mill is rolling then, then according to the required size sawing;
C, the good copper cover aluminum discharge that will break are sent into continuously and are preheated 60-150 second in the heating in medium frequency stove, make its temperature adjust to 300-600 ℃;
D, then the copper cover aluminum discharge is sent into continuous furnace, heating-up temperature is 300-620 ℃, and be 90 minutes-120 minutes heat time heating time;
E, then the copper cover aluminum discharge is sent into hot-rolling mill finish rolling, cooling through roller-way operation;
F, rolling good copper cover aluminum discharge carried out drawing typing after, according to the sawing of technology scale;
After G, the copper cover aluminum discharge that scale is good are put into vacuum annealing furnace and carried out bright annealing, obtain finished product, annealing temperature is 400-600 ℃, and annealing time is 6-12 hour;
H, finished product is put on the automatic packaging line packing warehouse-in.
Particularly, the mill speed of said hot-rolling mill is the 80-100 meter per second, and rolling temperature is 280-640 ℃.
Further, the welding manner that said coating machine moulding welding is adopted is: continuously from the fusion welding copper clad aluminum wire, speed of welding is greater than 15 meters/minute from fusing soldering welder for employing high frequency argon arc.
The technique effect that the present invention has: the production method of copper clad aluminum wire of the present invention is that the aluminium core coats the copper layer outward; Cost is low, can produce continuously, and technological process is short, production efficiency is high, all adopt mechanized operation; Interface bond strength is high, can satisfy the requirement of electrical equipment fully.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated:
The production method of the copper clad aluminum wire of present embodiment comprises the steps:
A, employing clad material processor carry out surperficial deoxidation layer with copper strips, aluminium row to be handled;
B, then goes into coating machine moulding welding with copper strips, aluminium dispatch, tightens up with cold-rolling mill is rolling then, then according to the required size sawing;
C, the good copper cover aluminum discharge that will break are sent into continuously and are preheated 60-150 second in the heating in medium frequency stove, make its temperature adjust to 300-600 ℃; Adopt intermediate frequency furnace to preheat, be suitable for making copper top layer and aluminum surface layer in transient heating, the top layer moment thawing of two kinds of alloying metals reaches metallurgical binding truly.
D, then the copper cover aluminum discharge is sent into continuous furnace, heating-up temperature is 300-620 ℃, and be 90 minutes-120 minutes heat time heating time; Adopt continuous furnace to make the purpose of copper cover aluminum discharge thermal change be: to reduce the distortion of materials drag, improve plasticity, be beneficial to the shaping in the operation of rolling, improve stability in the operation of rolling.
E, then the copper cover aluminum discharge is sent into hot-rolling mill finish rolling, cooling through roller-way operation; Rolling is the roll that metal material is placed two reverse rotations, makes it to obtain compression, also is to be higher than to make metal material produce plastic deformation and crystallization more simultaneously under the recrystallization temperature condition.The rolling product that can make improves its tissue when being shaped, thereby obtains our needed size and dimension, makes the product of shaping change crystalline state to improve the mechanical performance of workpiece.
F, rolling good copper cover aluminum discharge carried out drawing typing after, according to the sawing of technology scale; The mill speed of said hot-rolling mill is the 80-100 meter per second, and rolling temperature is 280-640 ℃.
After G, the copper cover aluminum discharge that scale is good are put into vacuum annealing furnace and carried out bright annealing, obtain finished product, annealing temperature is 400-600 ℃, and annealing time is 6-12 hour; Annealing is that the product workpiece is placed in certain material frame, is heated to preset temperature according to the Different products specification, and after in this temperature, keeping certain hour, naturally cools to normal temperature.This annealing steps is suitable for improving plasticity and toughness, makes the chemical composition homogenising, removes residual stress, the physical property that obtains expecting; Also be suitable for reducing resistivity, strengthen the conductance of copper clad aluminum wire.In addition, annealing also is suitable for eliminating the slight oxidation of copper clad aluminum wire in production process, improves the surface quality of copper clad aluminum wire.
H, finished product is put on the automatic packaging line packing warehouse-in.
The welding manner that said coating machine moulding welding is adopted is: continuously from the fusion welding copper clad aluminum wire, speed of welding is greater than 15 meters/minute from fusing soldering welder for employing high frequency argon arc.
Obviously, the foregoing description only be for clearly the present invention is described and is done for example, and be not to be qualification to embodiment of the present invention.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (3)
1. the production method of a copper clad aluminum wire is characterized in that comprising the steps:
A, copper strips, aluminium row is carried out surperficial deoxidation layer handle;
B, then goes into coating machine moulding welding with copper strips, aluminium dispatch, tightens up with cold-rolling mill is rolling then, then according to the required size sawing;
C, the good copper cover aluminum discharge that will break are sent into continuously and are preheated 60-150 second in the heating in medium frequency stove, make its temperature adjust to 300-600 ℃;
D, then the copper cover aluminum discharge is sent into continuous furnace, heating-up temperature is 300-620 ℃, and be 90 minutes-120 minutes heat time heating time;
E, then the copper cover aluminum discharge is sent into hot-rolling mill finish rolling, cooling through roller-way operation;
F, rolling good copper cover aluminum discharge carried out drawing typing after, according to the sawing of technology scale;
After G, the copper cover aluminum discharge that scale is good are put into vacuum annealing furnace and carried out bright annealing, obtain finished product, annealing temperature is 400-600 ℃, and annealing time is 6-12 hour;
H, finished product is put on the automatic packaging line packing warehouse-in.
2. the production method of copper clad aluminum wire according to claim 1, it is characterized in that: the mill speed of said hot-rolling mill is the 80-100 meter per second, rolling temperature is 280-640 ℃.
3. the production method of copper clad aluminum wire according to claim 2 is characterized in that: the welding manner that said coating machine moulding welding is adopted is: adopt the high frequency argon arc from fusing soldering welder continuously from the fusion welding copper clad aluminum wire, speed of welding is greater than 15 meters/minute.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410585316.1A CN104439923B (en) | 2011-08-26 | 2011-08-26 | A kind of resistivity is relatively low and the production method of plasticity and the preferable copper clad aluminum wire of toughness |
| CN201410585375.9A CN104384857B (en) | 2011-08-26 | 2011-08-26 | The production method of the copper clad aluminum wire that a kind of resistivity is relatively low |
| CN201110250139.8A CN102303216B (en) | 2011-08-26 | 2011-08-26 | Method for producing copper-clad aluminum bar |
| CN201410585374.4A CN104353966B (en) | 2011-08-26 | 2011-08-26 | A kind of plasticity and the production method of the preferable copper clad aluminum wire of toughness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110250139.8A CN102303216B (en) | 2011-08-26 | 2011-08-26 | Method for producing copper-clad aluminum bar |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410585316.1A Division CN104439923B (en) | 2011-08-26 | 2011-08-26 | A kind of resistivity is relatively low and the production method of plasticity and the preferable copper clad aluminum wire of toughness |
| CN201410585375.9A Division CN104384857B (en) | 2011-08-26 | 2011-08-26 | The production method of the copper clad aluminum wire that a kind of resistivity is relatively low |
| CN201410585374.4A Division CN104353966B (en) | 2011-08-26 | 2011-08-26 | A kind of plasticity and the production method of the preferable copper clad aluminum wire of toughness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102303216A true CN102303216A (en) | 2012-01-04 |
| CN102303216B CN102303216B (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110250139.8A Active CN102303216B (en) | 2011-08-26 | 2011-08-26 | Method for producing copper-clad aluminum bar |
Country Status (1)
| Country | Link |
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| CN (1) | CN102303216B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608427A (en) * | 2012-03-15 | 2012-07-25 | 河南中孚实业股份有限公司 | Method for measuring resistance of crimped section of copper and aluminum composite row |
| CN102682926A (en) * | 2012-05-30 | 2012-09-19 | 青岛圆鑫双金属有限公司 | Production technology of cooper clad aluminum row by using instant permanent bonding method |
| CN102760535A (en) * | 2012-07-23 | 2012-10-31 | 苏州市南方欣达双金属材料有限公司 | Production method for copper clad aluminum busbars |
| CN103022851A (en) * | 2012-12-21 | 2013-04-03 | 东莞市金澜电工材料有限公司 | Novel copper-aluminum transition plate production technology covering copper on double faces at one end of aluminum plate |
| CN103358099A (en) * | 2013-07-19 | 2013-10-23 | 烟台孚信达双金属股份有限公司 | Pass rolling technology for copper clad aluminum busbars |
| CN104409136A (en) * | 2014-12-22 | 2015-03-11 | 孙华桥 | Compound conducting bar |
| CN104439904A (en) * | 2013-09-13 | 2015-03-25 | 王学平 | Continuous extrusion production process and production equipment of copper-coated aluminum busbar |
| CN106098210A (en) * | 2016-07-29 | 2016-11-09 | 汉舟四川铜铝复合科技有限公司 | A kind of production method of the strong conduction copper of resistance to temperature rise aluminum interface alloy composite pipe bus |
| CN106205866A (en) * | 2016-07-29 | 2016-12-07 | 汉舟四川铜铝复合科技有限公司 | The processing method of wave duct in the alloy composite conductor of a kind of copper aluminum interface |
| CN106229076A (en) * | 2016-07-29 | 2016-12-14 | 汉舟四川铜铝复合科技有限公司 | A kind of production method of copper aluminum interface alloy composite bus in equipment for power transmission and distribution |
| CN108941238A (en) * | 2017-05-18 | 2018-12-07 | 艾洛益(杭州)材料科技有限公司 | The continuous preparation process of copper clad aluminium composite bus |
| CN109396755A (en) * | 2018-09-12 | 2019-03-01 | 浙江海普厨具有限公司 | Sand-blasting-free aluminum plate production line for cookware and production process thereof |
| CN113871095A (en) * | 2021-09-27 | 2021-12-31 | 张纪云 | Production process and production line of copper-clad aluminum flat wire |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608427B (en) * | 2012-03-15 | 2015-09-02 | 河南中孚实业股份有限公司 | A kind of measuring method of Copper-Aluminum compound row crimp segment resistance |
| CN102608427A (en) * | 2012-03-15 | 2012-07-25 | 河南中孚实业股份有限公司 | Method for measuring resistance of crimped section of copper and aluminum composite row |
| CN102682926A (en) * | 2012-05-30 | 2012-09-19 | 青岛圆鑫双金属有限公司 | Production technology of cooper clad aluminum row by using instant permanent bonding method |
| CN102760535A (en) * | 2012-07-23 | 2012-10-31 | 苏州市南方欣达双金属材料有限公司 | Production method for copper clad aluminum busbars |
| CN103022851A (en) * | 2012-12-21 | 2013-04-03 | 东莞市金澜电工材料有限公司 | Novel copper-aluminum transition plate production technology covering copper on double faces at one end of aluminum plate |
| CN103022851B (en) * | 2012-12-21 | 2015-11-11 | 东莞市金澜电工材料有限公司 | At the Novel copper-aluminium rebound production process of aluminium sheet one end double-sided copper-clad |
| CN103358099A (en) * | 2013-07-19 | 2013-10-23 | 烟台孚信达双金属股份有限公司 | Pass rolling technology for copper clad aluminum busbars |
| CN103358099B (en) * | 2013-07-19 | 2015-05-27 | 烟台孚信达双金属股份有限公司 | Pass rolling technology for copper clad aluminum busbars |
| CN104439904A (en) * | 2013-09-13 | 2015-03-25 | 王学平 | Continuous extrusion production process and production equipment of copper-coated aluminum busbar |
| CN104439904B (en) * | 2013-09-13 | 2016-08-17 | 王学平 | Copper clad aluminum wire continuous extrusion production technique and the equipment of production thereof |
| CN104409136A (en) * | 2014-12-22 | 2015-03-11 | 孙华桥 | Compound conducting bar |
| CN104409136B (en) * | 2014-12-22 | 2016-09-07 | 孙华桥 | A kind of preparation method of compound conductive bar |
| CN106098210A (en) * | 2016-07-29 | 2016-11-09 | 汉舟四川铜铝复合科技有限公司 | A kind of production method of the strong conduction copper of resistance to temperature rise aluminum interface alloy composite pipe bus |
| CN106205866A (en) * | 2016-07-29 | 2016-12-07 | 汉舟四川铜铝复合科技有限公司 | The processing method of wave duct in the alloy composite conductor of a kind of copper aluminum interface |
| CN106229076A (en) * | 2016-07-29 | 2016-12-14 | 汉舟四川铜铝复合科技有限公司 | A kind of production method of copper aluminum interface alloy composite bus in equipment for power transmission and distribution |
| CN108941238A (en) * | 2017-05-18 | 2018-12-07 | 艾洛益(杭州)材料科技有限公司 | The continuous preparation process of copper clad aluminium composite bus |
| CN109396755A (en) * | 2018-09-12 | 2019-03-01 | 浙江海普厨具有限公司 | Sand-blasting-free aluminum plate production line for cookware and production process thereof |
| CN109396755B (en) * | 2018-09-12 | 2020-12-04 | 浙江海普厨具有限公司 | Sand-blasting-free aluminum plate production line for cookware and production process thereof |
| CN113871095A (en) * | 2021-09-27 | 2021-12-31 | 张纪云 | Production process and production line of copper-clad aluminum flat wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102303216B (en) | 2014-12-10 |
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