CN100411761C - Method for manufacturing copper aluminum bimetal wire - Google Patents
Method for manufacturing copper aluminum bimetal wire Download PDFInfo
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- CN100411761C CN100411761C CNB2005100950518A CN200510095051A CN100411761C CN 100411761 C CN100411761 C CN 100411761C CN B2005100950518 A CNB2005100950518 A CN B2005100950518A CN 200510095051 A CN200510095051 A CN 200510095051A CN 100411761 C CN100411761 C CN 100411761C
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- copper
- aluminum bimetal
- copper aluminum
- bimetal wire
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Abstract
The invention relates to a method for producing copper aluminum metal line. Wherein, its production comprises that: 1, correcting the size of copper coil tube without anneal treatment whose diameter is PHI 15-60mm, while its length is 30-1000m; 2, removing oil and roughing the inner surface of copper tube; 3, washing the aluminum rod with alkali whose diameter is smaller than copper tube, washing and drying, then brushing the hair of outer surface, entering it into copper tube; 4, drawing straight to needed standard, while the total deformation rate is 80-99.9%. The invention has high yield, simple method and low cost, while the product has high quality.
Description
Technical field
The present invention relates to a kind of manufacture method of copper aluminum bimetal wire, the copper aluminum bimetal wire that the present invention relates to mainly is used in specific application area instead of pure copper conductor.
Background technology
At present, in fields such as communication, cable TV signal transmission, copper aluminum bimetal wire is with its good performance, and cheap cost has obtained using widely, along with development of technology, and the development of this application forward more areas.And the process of manufactured copper aluminum bimetal wire is also different, at the disclosed application number of Chinese patent is 98112410.0, name is called that we see in " a kind of compound copper-aluminium wire and production technology ", the technology that it adopts is: after copper pipe (band) after will fully annealing and aluminium bar (bar) contact surface are removed passivation layer, adopting tiretube process or bag to carry out welding is coated on aluminium bar in the copper layer, make copper aluminium composite blank, comprise stretching with cold working and hot worked way again, extruding or rolling, make blank deformation, stretch and adopt cold working, extruding or rolling employing hot-working, the hot-working heating-up temperature is 350 ℃～490 ℃, cold worked pass deformation rate is 10%～20%, hot worked pass deformation rate is 20%～40%, total deformation rate is 40%～80%, must carry out intermediate annealing in the passage processing, annealing temperature is 450 ℃～600 ℃, annealing time is 20 minutes～2 hours, the wire rod that is processed into finished size carries out diffusion-sintering heat treatment at last under reproducibility or inert atmosphere, 350 ℃～500 ℃ of its sintering temperatures, sintering time are 10 minutes～3 hours.
In this patent specification, tiretube process is illustrated further: so-called tiretube process, after copper pipe after will fully annealing earlier and aluminium bar surface passivation layer are removed, with the aluminium bar steel pipe of packing into, make composite blank, again drawn, extruding or rolling way are machined to final size with composite blank, wherein every through a time distortion, must carry out an intermediate annealing, 450 ℃～600 ℃ of annealing temperatures, 20 minutes～2 hours time, total deformation rate is 40%～80%.This patent gives embodiment, adopts the copper pipe of φ 8mm, length 10m, and the aluminium bar of the φ 6mm that packs into carries out multi-pass extruding and intermediate annealing then, makes required lead.
Because tiretube process can't enter industrialized production shown in the following not enough CN98112410.0: (1), cost height, of poor quality always.The annealing of multi-pass has increased production cost.To the annealing of copper pipe and aluminium bar and the intermediate annealing between the cold working after making composite blank, all be to increase cost before the sleeve pipe.In addition, excessive annealing can produce CuAl in copper pipe surface
2The embrittlement layer. can influence the metallurgical binding between the copper aluminium greatly, thereby influence the quality of product.(2), base is heavily low, output is little.In the communication cable field, the specification of copper aluminum bimetal wire is generally φ 2～φ 4mm, its single weight and size degree there is certain requirement, generally to go up 200 kilograms of every dishes, the disclosed application number of Chinese patent is 98112410.0, name is called disclosed method requirement total deformation rate 40%～80% in " a kind of compound copper-aluminium wire and production technology ", little deformation rate like this, make the following copper aluminum bimetal wire of φ 4mm, the diameter of its copper pipe blank can not surpass 12mm as calculated, and the aluminium shank diameter will be littler.So little soft attitude aluminium bar can not pass very long copper pipe, can't obtain big single weight, can't meet the need of market.
The disclosed application number of Chinese patent is 98112410.0 in addition, name is called the method for also having mentioned another production of copper aluminum bimetal wire in " a kind of compound copper-aluminium wire and production technology ", Bao Lvfa, the continuous cladding of the copper strips that adopts the method for argon arc welding to handle well in advance is on the aluminium bar, and then carry out multi-pass and stretch, make copper aluminium reach metallurgical binding, this method can be produced very long copper aluminum bimetal wire, it is the main method of current production of copper aluminum bimetal wire, but it also exists following deficiency: (1), production efficiency is low, because argon arc welding speed is very low, generally at 5～10m/min, simultaneously its aluminium shank diameter of selecting for use is between φ 9～φ 13, pushes the speed or the bar footpath all can influence the stability of production.Therefore, cladding method production efficiency is very low.(2), the cost height, be the stability of guaranteeing to weld, must select high-precision copper strips for use, this copper strips has all proposed very high requirement to thickness, tolerance, fine and clean degree, soft durometer.This high-precision copper strips itself just makes that cost is greatly improved.(3), quality stability is poor, the defective of any weld seam all can cause the generation of leaking the aluminium phenomenon in the passage drawing process of back, influences the quality of product.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, the method for the new copper aluminum bimetal wire that a kind of method is simple, production cost is low, quality is good, be suitable for industrial application is provided.
The technical scheme that realizes above-mentioned purpose is: a kind of manufacture method of copper aluminum bimetal wire, and the described manufacture method step is poly-as follows:
The first step will be the bronze pan tube aligning scale of 60 millimeters of φ 15～φ without the diameter of annealing in process, and cut lengths is 30～1000 meters;
Second step is with oil removing of copper pipe inner surface and alligatoring;
The 3rd step will be slightly less than the aluminium bar alkali cleaning of copper pipe internal diameter, and cleaning, drying, penetrated copper pipe behind the outer surface bristle continuously;
In the 4th step, through stretching one by one until the copper aluminum bimetal wire of required specification, total deformation rate is 80%～99.9%.
Adopt the benefit of the manufacture method of above-mentioned copper aluminum bimetal wire to be: (1), output are big.The present invention can select the copper pipe and the aluminium bar of larger diameter for use, suitable increase length, and the speed that the aluminium bar penetrates copper pipe can reach tens meters of per minutes, big sectional area, high speed can obtain very big output, and the single volume that also can obtain to meet the need of market is heavy.(2), method is simple.Contrast coating method, method of the present invention is simple.At first the manufacturing of copper pipe is very ripe method, adopts welding method production of copper aluminum bimetal wire, and the grasp of solder technology is very crucial problem, to equipment, welding machine, the requirement of copper strips is all very high, and only needing that the aluminium bar is penetrated copper pipe, method of the present invention gets final product, very easy.(3), quality is good.In the production process of copper pipe, can detect a flaw to copper pipe with eddy current, defective copper pipe can be excluded.And copper strips can't be accomplished this point owing to shape, and the welding fault the when defective on the copper strips adds welding all can produce in the drawing process of back passage leaks the aluminium phenomenon.(4), production cost is low.The process technology of copper pipe has produced the development of leap in recent years, the horizontal casting hollow bloom adds the production best approach that production provides high quality and low cost to produce to copper pipe of three-roller planetary rolling mill practice, and the copper strips technology does not all have too big variation in decades, still has only the copper strips of traditional hot-rolling method production could satisfy the demand that copper aluminum bimetal wire is produced.Both compare, and produce copper pipe than producing low about one times of the required cost of copper strips, add the raising of adopting the inventive method lumber recovery, and need not carry out copper pipe, aluminium bar and cold worked intermediate annealing, adopt this method to reduce production costs greatly.(5), equipment interoperability is strong, disposable input is little.For the bronze pan tube manufacturer of specialty, relate to the equipment of this method such as straight line drawbench, shear gauge, plate drawing machine, annealing furnace etc. and be existing equipment, the aluminium bar is commercially available, only increases some mini-plants and can carry out the production of bimetallic conductor.(6), product specification is many owing to select the copper pipe and the aluminium bar of larger diameter for use, copper aluminium just begins to reach metallurgical binding when 20 millimeters of φ 6～φ, and the coating method only can reach metallurgical binding when 5 millimeters of φ 2.5～φ.The copper aluminum bimetal wire of this big specification has promptly enlarged the specification of product, and also the production for the Cu-Al bimetal complex flat line provides possibility.
The specific embodiment
The present invention is further detailed explanation below by embodiment.
Process equipment: straight line drawbench, shear gauge, brushing machine, plate drawing machine etc.
The enforcement embodiments of the invention of the manufacture method of copper aluminum bimetal wire are as follows:
The first step, with the continuous vertical pulling of bronze pan tube to φ 26 * 0.85, and the aligning scale, 200 meters of cut lengths, the bronze pan tube of selecting for use here is a pure copper tube;
In second step, with oil removing of copper pipe inner surface and alligatoring, the method for alligatoring can blow away copper scale in the pipe with high pressure nitrogen then with the method for special-purpose tube brush bristle or employing ball blast, and be coarse fresh metal exposed face this moment in the pipe;
The 3rd step, commercially available aluminium bar is stretched to 23 millimeters of φ, again through alkali cleaning, rinsing and oven dry, after aligning and brushing machine with the alligatoring of aluminium rod outer surface bristle, immediately send into copper pipe, the about 340kg of copper aluminum pipe substance this moment, the aluminium bar of selecting for use here is the fine aluminium bar, if change the aluminium bar material into almag, also can be made into special-purpose bimetallic conductor, satisfy the requirement of high strength Cu-Al bimetal fine rule;
The 4th step stretched, and first passage adopts continuous vertical pulling, guaranteed the applying of copper aluminium rod surface, and the handstand dish drawbench with φ 2200 stretches subsequently.Do not need intermediate annealing, be pulled to φ 5mm always.Change special-purpose path wire drawing machine then and stretch, the external diameter of the copper aluminum bimetal wire that the general user is required is φ 2～φ 4mm, is pulled to its total deformation rate of above-mentioned size generally greater than 96%～99.5% from blank.Needs according to the user also can be pulled to thinner, the thinnest to 0.01 millimeter of φ.If the user needs the hard attitude supply of material, need not annealing, if need the soft attitude or the half-hard state supply of material, can do the annealing supply of material.
When adopting said method production of copper aluminum bimetal wire, aluminium bar external diameter is slightly less than the copper pipe internal diameter, guaranteeing that the aluminium bar can penetrate under the situation of copper pipe, the gap is the smaller the better between copper pipe endoporus and aluminium bar external diameter, being convenient to the copper pipe inwall like this contacts with aluminium bar outer wall, extruding is tight and reach synchronous extension, makes the good ductility of the two axiality good.
Claims (5)
1. the manufacture method of a copper aluminum bimetal wire is characterized in that: the step of described method manufactured copper aluminum bimetal wire is poly-as follows:
The first step will be the bronze pan tube aligning scale of 60 millimeters of φ 15～φ without the diameter of annealing in process, and cut lengths is 30～1000 meters;
Second step is with oil removing of copper pipe inner surface and alligatoring;
The 3rd step will be slightly less than the aluminium bar alkali cleaning of copper pipe internal diameter, and cleaning, drying, penetrated copper pipe behind the outer surface bristle continuously;
In the 4th step, through stretching one by one until the copper aluminum bimetal wire of required specification, total deformation rate is 80%～99.9%.
2. the manufacture method of copper aluminum bimetal wire according to claim 1 is characterized in that: the tube brush bristle that the method employing of the alligatoring described in second step is special-purpose or the method for employing ball blast.
3. the manufacture method of copper aluminum bimetal wire according to claim 1 and 2 is characterized in that: the stretching one by one described in the 4th step is adopted earlier and is stretched with handstand dish drawbench, and then the method that stretches with the path wire drawing machine of special use.
4. the manufacture method of copper aluminum bimetal wire according to claim 1 and 2, it is characterized in that: the bronze pan tube described in the first step is a pure copper tube.
5. the manufacture method of copper aluminum bimetal wire according to claim 1 and 2 is characterized in that: the aluminium bar described in the 3rd step is fine aluminium bar or almag bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100950518A CN100411761C (en) | 2005-10-20 | 2005-10-20 | Method for manufacturing copper aluminum bimetal wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100950518A CN100411761C (en) | 2005-10-20 | 2005-10-20 | Method for manufacturing copper aluminum bimetal wire |
Publications (2)
| Publication Number | Publication Date |
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| CN1951590A CN1951590A (en) | 2007-04-25 |
| CN100411761C true CN100411761C (en) | 2008-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100950518A Expired - Fee Related CN100411761C (en) | 2005-10-20 | 2005-10-20 | Method for manufacturing copper aluminum bimetal wire |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294656A (en) * | 2010-06-23 | 2011-12-28 | 江苏藤仓亨通光电有限公司 | Method for performing ball blasting treatment on steel core wire surface of bimetallic wire |
| CN104575693A (en) * | 2013-10-16 | 2015-04-29 | 东莞市龙卓电子有限公司 | Copper aluminum alloy wire and manufacturing technology thereof |
| CN104900339A (en) * | 2015-04-16 | 2015-09-09 | 江西安讯实业股份有限公司 | Manufacture method of copper and aluminum composite wire with high surface current carrying capability |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0917237A (en) * | 1995-06-27 | 1997-01-17 | Fujikura Ltd | Copper or copper alloy sheathed aluminum alloy wire |
| JPH1157848A (en) * | 1997-08-26 | 1999-03-02 | Fujikura Ltd | Copper coated aluminum wire manufacture |
| CN1230754A (en) * | 1998-03-26 | 1999-10-06 | 彭星魁 | Compound copper-aluminium wire and its production process |
| CN1283856A (en) * | 2000-09-08 | 2001-02-14 | 曲均绪 | Technology for making electrically conductive bimetal steel-in-copper wire |
| CN1298186A (en) * | 2000-12-02 | 2001-06-06 | 常州吉星电子器材有限公司 | Coating process of high-conductivity steel-in-copper composite wire |
| CN1340389A (en) * | 2000-08-31 | 2002-03-20 | 贵州凯撒铝业有限公司 | Technology for drawing plastics-lined composite metal pipe with sandwich transition structure material |
| CN1140361C (en) * | 2000-06-23 | 2004-03-03 | 西南新日钢制品有限公司 | Technology for making composite metal pipe |
| CN1655286A (en) * | 2005-03-04 | 2005-08-17 | 大连昌兴新材料科技开发有限公司 | Special-shaped copper-clad aluminium wire and method of production |
-
2005
- 2005-10-20 CN CNB2005100950518A patent/CN100411761C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0917237A (en) * | 1995-06-27 | 1997-01-17 | Fujikura Ltd | Copper or copper alloy sheathed aluminum alloy wire |
| JPH1157848A (en) * | 1997-08-26 | 1999-03-02 | Fujikura Ltd | Copper coated aluminum wire manufacture |
| CN1230754A (en) * | 1998-03-26 | 1999-10-06 | 彭星魁 | Compound copper-aluminium wire and its production process |
| CN1140361C (en) * | 2000-06-23 | 2004-03-03 | 西南新日钢制品有限公司 | Technology for making composite metal pipe |
| CN1340389A (en) * | 2000-08-31 | 2002-03-20 | 贵州凯撒铝业有限公司 | Technology for drawing plastics-lined composite metal pipe with sandwich transition structure material |
| CN1283856A (en) * | 2000-09-08 | 2001-02-14 | 曲均绪 | Technology for making electrically conductive bimetal steel-in-copper wire |
| CN1298186A (en) * | 2000-12-02 | 2001-06-06 | 常州吉星电子器材有限公司 | Coating process of high-conductivity steel-in-copper composite wire |
| CN1655286A (en) * | 2005-03-04 | 2005-08-17 | 大连昌兴新材料科技开发有限公司 | Special-shaped copper-clad aluminium wire and method of production |
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| CN1951590A (en) | 2007-04-25 |
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Owner name: SHANDONG ZHONGJIA NEW MATERIALS CO., LTD. Free format text: FORMER OWNER: XINGRONG HI-TECH CO LTD, JIANGSU Effective date: 20100921 |
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Effective date of registration: 20100921 Address after: 265400 Linglong North Road, Zhaoyuan Economic Development Zone, Shandong Patentee after: Shandong Zhongjia New Materials Co., Ltd. Address before: 213022 No. 8 Xingye Road, Xinbei District, Jiangsu, Changzhou Patentee before: Xingrong Hi-Tech Co., Ltd., Jiangsu |
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Assignee: Shandong Zhongjia New Materials Co., Ltd. Assignor: Xingrong Hi-Tech Co., Ltd., Jiangsu Contract record no.: 2010370000461 Denomination of invention: Method for manufacturing copper aluminum bimetal wire Granted publication date: 20080820 License type: Exclusive License Open date: 20070425 Record date: 20100818 |
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