CN103394510A - Cold-rolled copper and aluminum composite material production process - Google Patents
Cold-rolled copper and aluminum composite material production process Download PDFInfo
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- CN103394510A CN103394510A CN2013103250061A CN201310325006A CN103394510A CN 103394510 A CN103394510 A CN 103394510A CN 2013103250061 A CN2013103250061 A CN 2013103250061A CN 201310325006 A CN201310325006 A CN 201310325006A CN 103394510 A CN103394510 A CN 103394510A
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Abstract
The invention discloses a cold-rolled copper and aluminum composite material production process. The process includes using an aluminum strip as a base strip and a copper strip as a strip covering material, performing surface treatment, performing composite rolling prior to heat treatment at the temperature of 605-610 DEG C, keeping the temperature for 8-10min, and finally forcedly cooling to the normal temperature by water cooling, wherein the thickness of the copper strip is 18-22% of that of the aluminum strip, the surface roughness of the aluminum strip satisfies that Rz=95-115 micrometers, and the surface roughness of the copper strip satisfies that Rz=80-95 micrometers. Optimum matching of deformation, layer thickness ratio and composite strength can be realized, and the process has the advantages of high interface composite strength and good dynamic thermal stability.
Description
Technical field
The present invention relates to a kind of cold rolling copper aluminum composite material production technology.
Background technology
Electric power electric industry at present conductive material commonly used is copper and aluminium, and he is also the heat exchange material of commonly using in the world simultaneously, copper moment heat absorption capacity than the fast 1.61.6 of aluminium doubly, but the speed of heat radiation is slow, the radiating rate of aluminium is than 2.33 times of copper billets.But coexist higher than easily oxidation in room temperature environment, particularly in containing the environment of corrosive gas.So under the abominable condition of industrial and mineral, reuse the aluminium displacement for copper bar., as with the combination in addition of two kinds of metal materials, will be perfect conduction, heat exchange material.Therefore no matter be used for conduction or heat conduction, adopting copper aluminum composite material is all splendid selection.The outer complex copper take aluminium as matrix, be applied to for line conductor row, the line of level rate greater than power frequency.Outer clad aluminum, be applicable to overlook conduction, heat conduction under industrial and mineral take copper as matrix.
Summary of the invention
The present invention is directed to above problem, a kind of cold rolling copper aluminum composite material production technology is provided, adopt this production technology, the present invention can realize that deflection, bed thickness, than the optimum Match with combined strength bination, have advantages of that the interface combined strength bination is high, dynamic thermal stability good.
For achieving the above object, the present invention adopts following technological means:
A kind of cold rolling copper aluminum composite material production technology,
A, raw material: with aluminium strip be base band, with copper strips for covering carrying material; Require to choose aluminium strip, copper strips thickness and width dimensions according to finished product;
B, surface treatment: aluminium strip, copper strips are carried out surface texturing process, reach roughness and require:
The aluminium strip surface roughness is Rz=95～115 μ m; The copper strip surface roughness is Rz=80～95 μ m;
C, correcting error guidance:
D, composite rolling: trilaminate material is become layer of metal complex plate strip material through large rolling reduction composite rolling; Make the upper, middle and lower-ranking material enter composite rolling mill synchronous, neatly; The composite rolling deflection is 70～85%; Composite rolling speed is 8～10m/min;
E, heat treatment: composite rolling is complete, heat-treats operation, and adopt the quick cooling system of Short-time Annealing at High-temperature: annealing temperature is 580～610 ℃; Temperature retention time is 8～10min, adopts finally water-cooled to force cooling.
Further, with the stainless steel wire brush, aluminium strip is carried out surface texturing and process, the requirement of stainless steel wire is: hardness HRC40～50, diameter are 0.3～0.5 ㎜; Carry out the copper strip surface texturing is processed with abrasive band, the abrasive band requirement is: granularity is 110～130 orders, the diamond dust abrasive band.
Further, in described texturing process, during rate of feeding 0～1m/min, the brush roll rotating speed is 1500～1800r/min; During rate of feeding 1～3m/min, the brush roll rotating speed is 1800～2000r/min; During rate of feeding 3～5m/min, the brush roll rotating speed is 2000～2200r/min.
Further, to backing roll should be arranged, the gap, axle center of brush roll and backing roll is with brush roll: two radius frame brush material strip thickness adds 0.5 ㎜.
Further, adopt the quick cooling system of Short-time Annealing at High-temperature: annealing temperature is 605～610 ℃; Temperature retention time is 8～10min, adopts finally water-cooled to force to be cooled to normal temperature.
Further, asynchronous rolling process is adopted in described rolling.
Further, copper strips thickness is 18～22% of al zone thickness.
Below in conjunction with drawings and Examples, the present invention is further elaborated.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, the accompanying drawing that the following describes is only some embodiment that put down in writing in the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing;
Fig. 1 is cold rolling composite construction schematic diagram.
In schematic diagram: 1: cold rolling composite bar 2: composite roll 3: automatic deviation correction equipment 4: surface processing equipment 5: composite band.
The specific embodiment
The following correlation technique content of not addressing all can adopt or use for reference prior art.
In order to make those skilled in the art person understand better technical scheme in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the application's part embodiment, rather than whole embodiment.Based on the embodiment in the application, those of ordinary skills are not making under the creative work prerequisite the every other embodiment that obtains, and all should belong to the scope of the application's protection.
A kind of cold rolling copper aluminum composite material production technology,
Raw material: with aluminium strip be base band, with copper strips for covering carrying material; Require to choose aluminium strip, copper strips thickness and width dimensions according to finished product; Copper strips thickness is 18～22% of al zone thickness;
1. the copper aluminium composite bar of copper aluminium volume ratio 15～20%, it exchanges current-carrying capacity (electric conductivity) is fine copper row's 85～93%, electric conductivity is best;
2. for other composites, economic performance is best: the surface copper decay resistance guarantees; This copper aluminium volume ratio is comparatively saved metallic copper.
Surface treatment: aluminium strip, copper strips are carried out surface texturing process, reach roughness and require:
Employing is carried out the surface texturing processing with the stainless steel wire brush to aluminium strip, and the requirement of stainless steel wire is: hardness HRC40～50, diameter are 0.3～0.5 ㎜; Carry out the copper strip surface texturing is processed with abrasive band, the abrasive band requirement is: granularity is 110～130 orders, the diamond dust abrasive band.
After texturing, the aluminium strip surface roughness is Rz=95～115 μ m; After texturing, the copper strip surface roughness is Rz=80～95 μ m.
Correcting error guidance:
Composite rolling: trilaminate material is become layer of metal complex plate strip material through the large asynchronous composite rolling of rolling reduction; Make the upper, middle and lower-ranking material enter composite rolling mill synchronous, neatly; As shown in Figure 11: cold rolling composite bar 2: composite roll 3: automatic deviation correction equipment 4: surface processing equipment 5: composite band, composite rolling deflection are 70～85%; Composite rolling speed is 8～10m/min; In compound temperature production process, variations in temperature is at 40～80 ℃.
Heat treatment: composite rolling is complete, heat-treats operation, and adopt the quick cooling system of Short-time Annealing at High-temperature: annealing temperature is 580～610 ℃; Temperature retention time is 8～10min, adopts finally water-cooled to force cooling.
Can effectively adjust annealing process according to different composite specifications (thickness, width etc.), to reach the optimum performance of material.
Thickness increases, and annealing temperature and annealing time are near the upper limit; Thickness reduces, and annealing temperature and annealing time are near lower limit.Complex plate strip material width increases, and annealing temperature and annealing time are near the upper limit; Complex plate strip material width reduces, and annealing temperature and annealing time are near lower limit.
Copper aluminium cold rolling composite plate carrying material, by above annealing process, realize the transformation of the physical bond at interface to metallurgical binding, can find out through the SEM photo that test is peeled off interface by the copper aluminium sheet, the compound interface that obtains by above-mentioned Technology for Heating Processing has little time to form the intermetallic frangible compounds, thereby has guaranteed the composite effect at interface.
Thereby realize the annealing strengthening effect: the material bending performance improves, and the compound interface shear strength increases, and composite can also obtain certain hardness number.
The Cu-Al-Cu Cladding Plate that heat treatment method of the present invention obtains has outstanding electrical conductivity and good mechanical property, and more than its electrical conductivity can reach 67.5%IACS, copper, aluminium interface shear strength were more than 35MPa;
The copper aluminium diffuse interface of the Cu-Al-Cu Cladding Plate that heat treatment method of the present invention obtains is even, and thickness of diffusion layer is in 2.8 μ m left and right, and diffusion layer does not have obvious copper Al intermetallic to occur.
The above is only the application's preferred embodiment, makes those skilled in the art can understand or realize the application.Multiple modification to these embodiment will be apparent to one skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the application's spirit or scope, realization in other embodiments.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. cold rolling copper aluminum composite material production technology is characterized in that:
A, raw material: with aluminium strip be base band, with copper strips for covering carrying material; Require to choose aluminium strip, copper strips thickness and width dimensions according to finished product;
B, surface treatment: aluminium strip, copper strips are carried out surface texturing process, reach roughness and require:
The aluminium strip surface roughness is Rz=95～115 μ m; The copper strip surface roughness is Rz=80～95 μ m;
C, correcting error guidance:
D, composite rolling: trilaminate material is become layer of metal complex plate strip material through large rolling reduction composite rolling; Make the upper, middle and lower-ranking material enter composite rolling mill synchronous, neatly; The composite rolling deflection is 70～85%; Composite rolling speed is 8～10m/min;
E, heat treatment: composite rolling is complete, heat-treats operation, and adopt the quick cooling system of Short-time Annealing at High-temperature: annealing temperature is 580～610 ℃; Temperature retention time is 8～10min, adopts finally water-cooled to force cooling.
2. cold rolling copper aluminum composite material production technology according to claim 1 is characterized in that:
With the stainless steel wire brush, aluminium strip is carried out surface texturing and process, the requirement of stainless steel wire is: hardness HRC40～50, diameter are 0.3～0.5 ㎜; Carry out the copper strip surface texturing is processed with abrasive band, the abrasive band requirement is: granularity is 110～130 orders, the diamond dust abrasive band.
3. cold rolling copper aluminum composite material production technology according to claim 1 is characterized in that:
In described texturing process, during rate of feeding 0～1m/min, the brush roll rotating speed is 1500～1800r/min;
During rate of feeding 1～3m/min, the brush roll rotating speed is 1800～2000r/min;
During rate of feeding 3～5m/min, the brush roll rotating speed is 2000～2200r/min.
4. cold rolling copper aluminum composite material process of surface treatment according to claim 3, it is characterized in that: to backing roll should be arranged, the gap, axle center of brush roll and backing roll is with brush roll: two radius frame brush material strip thickness adds 0.5 ㎜.
5. cold rolling copper aluminum composite material process of surface treatment according to claim 1 is characterized in that: adopt the quick cooling system of Short-time Annealing at High-temperature: annealing temperature is 605～610 ℃; Temperature retention time is 8～10min, adopts finally water-cooled to force to be cooled to normal temperature.
6. cold rolling copper aluminum composite material production technology according to claim 1, is characterized in that: described rolling employing asynchronous rolling process.
7. cold rolling copper aluminum composite material production technology according to claim 1, it is characterized in that: copper strips thickness is 18～22% of al zone thickness.
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| CN2013103250061A CN103394510A (en) | 2013-07-31 | 2013-07-31 | Cold-rolled copper and aluminum composite material production process |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611755A (en) * | 2013-11-28 | 2014-03-05 | 昆明理工大学 | Preparation method for complex-phase metallic oxide enhanced silver-based electrical contact wire |
| CN104959382A (en) * | 2014-12-12 | 2015-10-07 | 太原科技大学 | Method for rolling copper-aluminum double-layer composite plate |
| CN105170652A (en) * | 2015-08-31 | 2015-12-23 | 东北大学 | Preparation method for multilayer dissimilar metal composite ultra-thin strip |
| CN106086730A (en) * | 2016-07-28 | 2016-11-09 | 汉舟四川铜铝复合科技有限公司 | A kind of Technology for Heating Processing of copper aluminum composite material |
| CN106297960A (en) * | 2016-08-23 | 2017-01-04 | 徐高磊 | A kind of production technology of cable Copper-Aluminum compound band |
| CN107309711A (en) * | 2017-06-28 | 2017-11-03 | 江苏鼎胜新能源材料股份有限公司 | Surface of aluminum plate handling process |
| CN108515085A (en) * | 2018-03-30 | 2018-09-11 | 湖南科罗德新材料有限公司 | The preparation method of Copper-Aluminum compound strip |
| CN108517476A (en) * | 2018-03-30 | 2018-09-11 | 湖南科罗德新材料有限公司 | The heat treatment method of copper aluminium cold rolling composite plate |
| CN109078983A (en) * | 2018-06-27 | 2018-12-25 | 河南科技大学 | A kind of preparation method of ultra-thin Copper-Aluminum compound foil |
| CN113305171A (en) * | 2021-05-12 | 2021-08-27 | 北京科技大学 | Preparation method of titanium/aluminum laminated composite thin plate strip |
| CN117463782A (en) * | 2023-11-21 | 2024-01-30 | 佛山通宝精密合金股份有限公司 | Preparation method of Ti-Al-Ti multilayer layered composite material and composite material prepared by same |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611755A (en) * | 2013-11-28 | 2014-03-05 | 昆明理工大学 | Preparation method for complex-phase metallic oxide enhanced silver-based electrical contact wire |
| CN104959382A (en) * | 2014-12-12 | 2015-10-07 | 太原科技大学 | Method for rolling copper-aluminum double-layer composite plate |
| CN105170652A (en) * | 2015-08-31 | 2015-12-23 | 东北大学 | Preparation method for multilayer dissimilar metal composite ultra-thin strip |
| CN106086730A (en) * | 2016-07-28 | 2016-11-09 | 汉舟四川铜铝复合科技有限公司 | A kind of Technology for Heating Processing of copper aluminum composite material |
| CN106297960A (en) * | 2016-08-23 | 2017-01-04 | 徐高磊 | A kind of production technology of cable Copper-Aluminum compound band |
| CN107309711A (en) * | 2017-06-28 | 2017-11-03 | 江苏鼎胜新能源材料股份有限公司 | Surface of aluminum plate handling process |
| CN108515085A (en) * | 2018-03-30 | 2018-09-11 | 湖南科罗德新材料有限公司 | The preparation method of Copper-Aluminum compound strip |
| CN108517476A (en) * | 2018-03-30 | 2018-09-11 | 湖南科罗德新材料有限公司 | The heat treatment method of copper aluminium cold rolling composite plate |
| CN108515085B (en) * | 2018-03-30 | 2019-10-18 | 湖南科罗德新材料有限公司 | The preparation method of Copper-Aluminum compound strip |
| CN109078983A (en) * | 2018-06-27 | 2018-12-25 | 河南科技大学 | A kind of preparation method of ultra-thin Copper-Aluminum compound foil |
| CN109078983B (en) * | 2018-06-27 | 2020-06-30 | 河南科技大学 | Preparation method of ultrathin copper-aluminum composite foil |
| CN113305171A (en) * | 2021-05-12 | 2021-08-27 | 北京科技大学 | Preparation method of titanium/aluminum laminated composite thin plate strip |
| CN113305171B (en) * | 2021-05-12 | 2022-11-04 | 北京科技大学 | Preparation method of titanium/aluminum laminated composite thin plate strip |
| CN117463782A (en) * | 2023-11-21 | 2024-01-30 | 佛山通宝精密合金股份有限公司 | Preparation method of Ti-Al-Ti multilayer layered composite material and composite material prepared by same |
| CN117463782B (en) * | 2023-11-21 | 2024-05-28 | 佛山通宝精密合金股份有限公司 | Preparation method of Ti-Al-Ti multilayer layered composite material and composite material prepared by same |
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Application publication date: 20131120 |