CN108425081B - A kind of copper aluminium rolling casting bonding strip online annealing method - Google Patents
A kind of copper aluminium rolling casting bonding strip online annealing method Download PDFInfo
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- CN108425081B CN108425081B CN201810270767.4A CN201810270767A CN108425081B CN 108425081 B CN108425081 B CN 108425081B CN 201810270767 A CN201810270767 A CN 201810270767A CN 108425081 B CN108425081 B CN 108425081B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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Abstract
The present invention relates to a kind of copper aluminium rolling casting bonding strip online annealing method, using high temperature online annealing technique in short-term, the copper-aluminum composite board band after rolling casting bonding is subjected to online annealing, 420-480 DEG C of annealing temperature, annealing time 5-20min, natural cooling, this method process are succinct in air after annealing, annealing is uniform, effectively contracting anneling production line length, reduction production cost improve production efficiency simultaneously, obtained copper-aluminum composite board band interfacial layer thickness is controllable, and combined strength bination is high.The present invention also sets up attemperator between anneling production line and rolling casting bonding machine and keeps the temperature to strip blank, improves annealing efficiency, prevents annealing heating is too fast from combined strength bination being caused to reduce.
Description
Technical field
The present invention relates to copper aluminum composite material processing technique fields, and in particular to the annealing process side of Copper-Aluminum compound strip
Method.
Background technique
Copper and the aluminium nonferrous materials important as two kinds all obtain extensively in fields such as mechanical, communication, electric power and transports
General application.Copper aluminum composite material substitutes most copper using aluminium, has given full play to the thermally conductive and conductive excellent properties of copper aluminium.
Relative to copper, aluminium has lower price and lighter weight, and therefore, copper aluminum composite material can guarantee certain excellent properties
Under the premise of have lower cost.Copper-Aluminum compound strip has been obtained as a kind of important copper aluminum composite material in multiple industries
To extensive use.
There are many production methods of Copper-Aluminum compound strip in the prior art, and wherein casting and roll process is combined with casting and rolling
Compound production method, existing liquid phase high temperature, and have draught pressure, it can be realized higher combined strength bination.Using rolling casting bonding method
The composite plate of production, the anaerobic metallurgy that may be implemented under dissimilar metal high temperature is compound, and compound board interface is smoothly continuous, combined strength bination
Height is a kind of ideal method for producing copper-aluminum composite board.
In Copper-Aluminum compound strip production process, annealing process is to guarantee combined strength bination and cycling processability and service performance
Important procedure.Casting and roll process produces Copper-Aluminum compound strip, and currently used annealing process generally uses integrally annealed method, this
Method is entire volume complex plate strip to be lifted into annealing furnace to anneal, and integrally annealed technique is generally in 250-400 DEG C of range
On the one hand interior long term annealing, this annealing way have separated the whole process of composite plate production, so that production disconnects, process is numerous
It is trivial, and the problems such as there is the difference of interior external heating time during heating, cause composite plate bond strength inconsistent；Another party
Face, prolonged annealing extend entire process time, and production efficiency is low, high production cost.
Summary of the invention
In view of the drawbacks of the prior art, an object of the present invention is to provide a kind of moving back online for copper aluminium rolling casting bonding strip
Ignition method, the technical issues of solving annealing process inefficiency when prior art casting Copper-Aluminum compound strip process is tedious.
In order to achieve the above object, the technical scheme adopted by the invention is that:
A kind of copper aluminium rolling casting bonding strip online annealing method, it is characterised in that: anneling production line is close to rolling casting bonding master
Machine setting, anneling production line tape running speed are consistent with rolling casting bonding host speed of production, and Copper-Aluminum compound strip blank material is through casting
Enter anneling production line after rolling compound and carries out high temperature online annealing in short-term, 420 DEG C -480 DEG C of annealing temperature, annealing time 5-
20min, composite plate take after anneling production line natural cooling in air out of.
Between rolling casting bonding host and anneling production line, complex plate strip blank is kept the temperature using attemperator, is made
Complex plate strip blank temperature is maintained at 250-350 DEG C.
Anneling production line uses Resistant heating.
Anneling production line annealing time according to needed for rolling casting bonding technique carries out length customization.
Length customization can pass through multiple small-sized combined and spliced realizations of anneling production line.
The copper aluminium rolling casting bonding strip that above-mentioned online annealing method obtains, interfacial layer thickness control within 5 μm, and removing is strong
Degree is 45-52N/mm.
The utility model has the advantages that the present invention improves traditional rolling casting bonding production technology, a kind of more efficient life is provided
Production method, on the one hand, the mode for abandoning integral hoisting annealing uses online annealing, so that blank is processed through rolling casting bonding host
Afterwards, anneling production line can be directly entered to anneal, can anneal in processing, reduce process, shortening production procedure, when annealing
Complex plate strip it is not rolled, can fully ensure that homogeneous heating；On the other hand, for the spy of rolling casting bonding technique and online annealing
Point proposes high temperature short time annealing process, and 420-480 DEG C of annealing temperature, annealing time is limited in 5-20min, avoids length
The problem of time annealing increases cost, effectively improves production efficiency, reduces production cost, while also assuring Copper-Aluminum compound strip
Boundary layer combined strength bination with higher.The Copper-Aluminum compound strip manufactured using method of the invention is improving production efficiency
Meanwhile interfacial layer thickness is controllable, combined strength bination is high, fully meets processing and requirement.
Detailed description of the invention
Fig. 1 present invention process flow diagram
Appended drawing reference: 1, rolling casting bonding host；2, attemperator；3, anneling production line；4, tape handler.
Specific embodiment
The present invention will be further described in detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, Copper-Aluminum compound strip carries out laminating production, the output of rolling casting bonding host in rolling casting bonding host 1
Copper Aluminum sheets blank introduce anneling production line 3 carry out online annealing, anneling production line 3 is as far as possible close to rolling casting bonding host
1,3 tape running speed of anneling production line is consistent with 1 speed of production of rolling casting bonding host, is moved back before manufacture to anneling production line
Fiery equipment heats up, to reach required annealing temperature, 420 DEG C -480 DEG C of the annealing temperature of annealing process of the present invention, when annealing
Between 5-20min.
Composite plate takes after anneling production line 3 natural cooling in air out of, the plate bending machine that is followed by batched, the present invention
The plate bending machine used can also use other plate bending machines in the prior art for tape handler 3 in actual production.
Casting and rolling production process usually requires to carry out at high temperature, and the Copper-Aluminum compound strip blank material through rolling casting bonding is multiple in casting
Conjunction machine exit temperature usually with higher, generally at 300-400 DEG C, in order to efficiently use the blank temperature after rolling casting bonding
Degree increases annealing efficiency, attemperator 2 is additionally provided between rolling casting bonding host and anneling production line, it is therefore intended that by base
Material temperature degree remains 250-350 DEG C, in this, as the warm before annealing, prevents copper-aluminum composite board from heating up too in annealing stage
Combined strength bination is caused to reduce fastly.
Continuous annealing apparatus commonly used in the prior art can be used in anneling production line, specifically according to rolling casting bonding strip
Width, speed, temperature are customized production.
In the present invention, anneling production line uses Resistant heating, which is easy to control, energy conservation and environmental protection, replacement dimension
Shield is convenient, at low cost.
In actual production, requirement of the different rolling casting bonding technique to annealing time is different, the length of anneling production line
It should be customized according to the requirement of rolling casting bonding technique early period.For save the cost, customization work is reduced, it can be in real work
Using several small-sized anneling production lines as unit module, according to different process requirements, the annealing for splicing and combining into different length is raw
Producing line customizes problem with flexible adaptation production line length.
Online annealing method proposed by the present invention changes annealing process in conjunction with the characteristics of casting production Copper-Aluminum compound strip
Into for online annealing, strip after rolling casting bonding can not rolled lifting, be directly entered anneling production line and anneal, cast
It rolls, orderly progress of annealing, effectively saves process, improves production efficiency.
On the other hand, since low temperature long term annealing will lead to, anneling production line is too long, and cost is excessively high, meanwhile, it examines simultaneously
The copper-aluminum composite board band interface for considering casting production is straight uniformly, and annealing easily causes interface growth rate mistake at an excessive temperature
Fastly, it will lead to Interface composites intensity to drastically reduce, after research and testing, the invention proposes in online annealing technique
Short-time Annealing at High-temperature method, both can be shortened anneling production line length, drop by 420-480 DEG C of annealing temperature, annealing time 5-20min
Low cost, but it is too fast to prevent boundary layer from increasing, and combined strength bination is effectively ensured.
The following are the specific embodiments that the production of Copper-Aluminum compound band is carried out using the method for the invention, in following embodiment
In, copper, the aluminium material of selection are respectively as follows: commercial-purity aluminium 1060, copper strips T2；Composite plate is with a thickness of 6-14mm；Annealing process uses
High temperature online annealing in short-term, 420-480 DEG C of annealing temperature, time 5-20min.Interfacial layer thickness is using the observation point of surface sweeping Electronic Speculum
It is measured after analysis object phase, thickness measure is accurate.Peel strength is tested using the requirement of standard ASTM D1876-08, and equipment is
SHIMADZU AG-I250KN universal testing machine, data are reliable.
Embodiment 1
A. commercial-purity aluminium 1060 and copper strips T2 are chosen, implements rolling casting bonding on rolling casting bonding host, sample is thick after casting
Degree is 6mm, in particular aluminium 5mm+ copper 1mm；
B. the warm device of complex plate strip that casting is completed is kept the temperature, and is moved back subsequently into online annealing production line
Fire, anneling production line tape running speed are consistent with rolling casting bonding host speed of production, and 460 DEG C of annealing temperature, annealing time
10min；
C. anneal the Copper-Aluminum compound strip natural cooling in air of completion, the plate bending machine that is followed by batched.
Complex plate strip produced, peel strength are 52 ± 0.51N/mm, and interfacial layer thickness is 3.8 ± 0.20 μm.
Embodiment 2
A. commercial-purity aluminium 1060 and copper strips T2 are chosen, implements rolling casting bonding on rolling casting bonding host, sample is thick after casting
Degree is 6mm, in particular aluminium 5mm+ copper 1mm；
B. the warm device of complex plate strip that casting is completed is kept the temperature, and is moved back subsequently into online annealing production line
Fire, anneling production line tape running speed are consistent with rolling casting bonding host speed of production, and 420 DEG C of annealing temperature, annealing time
20min；
C. anneal the Copper-Aluminum compound strip natural cooling in air of completion, the plate bending machine that is followed by batched.
Complex plate strip produced, peel strength are 46 ± 0.12N/mm, and interfacial layer thickness is 4.3 ± 0.20 μm.
Embodiment 3
A. commercial-purity aluminium 1060 and copper strips T2 are chosen, implements rolling casting bonding on rolling casting bonding host, sample thickness 8mm,
In particular aluminium 7mm+ copper 1mm；
B. the warm device of complex plate strip that casting is completed is kept the temperature, and is moved back subsequently into online annealing production line
Fire, anneling production line tape running speed are consistent with rolling casting bonding host speed of production, and 420 DEG C of annealing temperature, annealing time
15min；
C. anneal the Copper-Aluminum compound strip natural cooling in air of completion, the plate bending machine that is followed by batched.
Complex plate strip produced, peel strength are 48 ± 0.92N/mm, and interfacial layer thickness is 4.0 ± 0.11 μm.
Embodiment 4
A. commercial-purity aluminium 1060 and copper strips T2 are chosen, implements rolling casting bonding on rolling casting bonding host, sample thickness 8mm,
In particular aluminium 7mm+ copper 1mm；
B. the warm device of complex plate strip that casting is completed is kept the temperature, and is moved back subsequently into online annealing production line
Fire, anneling production line tape running speed are consistent with rolling casting bonding host speed of production, and 460 DEG C of annealing temperature, annealing time
10min；
C. anneal the Copper-Aluminum compound strip natural cooling in air of completion, the plate bending machine that is followed by batched.
Complex plate strip produced, peel strength are 45 ± 0.32N/mm, and interfacial layer thickness is 4.2 ± 0.13 μm.
Embodiment 5
A. commercial-purity aluminium 1060 and copper strips T2 are chosen, implements rolling casting bonding on rolling casting bonding host, sample thickness 8mm,
In particular aluminium 7mm+ copper 1mm；
B. the warm device of complex plate strip that casting is completed is kept the temperature, and is moved back subsequently into online annealing production line
Fire, anneling production line tape running speed are consistent with rolling casting bonding host speed of production, and 480 DEG C of annealing temperature, annealing time
5min；
C. anneal the Copper-Aluminum compound strip natural cooling in air of completion, the plate bending machine that is followed by batched.
Complex plate strip produced, peel strength are 45 ± 1.1N/mm, and interfacial layer thickness is 4.3 ± 0.15 μm.
Embodiment 6
A. commercial-purity aluminium 1060 and copper strips T2 are chosen, implements rolling casting bonding on rolling casting bonding host, sample thickness 12mm,
In particular aluminium 10mm+ copper 2mm；
B. the warm device of complex plate strip that casting is completed is kept the temperature, and is moved back subsequently into online annealing production line
Fire, anneling production line tape running speed are consistent with rolling casting bonding host speed of production, and 420 DEG C of annealing temperature, annealing time
6min；
C. anneal the Copper-Aluminum compound strip natural cooling in air of completion, the plate bending machine that is followed by batched.
Complex plate strip produced, peel strength are 46 ± 1.3N/mm, and interfacial layer thickness is 4.9 ± 0.12 μm.
Specifically, the parameter and data of above-described embodiment 1-6 see the table below 1:
The parameter and data of 1 embodiment 1-6 of table
Not only process is succinct for online annealing method proposed by the present invention, high production efficiency, also by annealing time from a few hours
It foreshortens within 20min, above embodiments further demonstrate the high temperature online annealing technique that the present invention chooses and make casting
Compound obtained complex plate strip interfacial layer thickness is controllable, combined strength bination with higher.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above are modified or are modified
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (2)
1. a kind of copper aluminium rolling casting bonding strip online annealing method, it is characterised in that: anneling production line is close to rolling casting bonding host
Setting, anneling production line tape running speed are consistent with rolling casting bonding host speed of production, and anneling production line is according to rolling casting bonding
Annealing time needed for technique carries out length customization, and length customization can pass through multiple small-sized combined and spliced realizations of anneling production line, In
It is additionally provided with attemperator between rolling casting bonding host and anneling production line, complex plate strip blank is protected using attemperator
Temperature makes complex plate strip blank temperature be maintained at 250-350 DEG C, Copper-Aluminum compound strip blank material after rolling casting bonding through attemperator into
Row heat preservation carries out high temperature online annealing in short-term subsequently into anneling production line, and 420 DEG C -480 DEG C of annealing temperature, annealing time
5-20min, composite plate take after anneling production line natural cooling in air out of, the plate bending machine that is followed by batched, this is online
The obtained copper aluminium rolling casting bonding strip interfacial layer thickness control of method for annealing is within 5 μm, peel strength 45-52N/mm.
2. online annealing method as described in claim 1, which is characterized in that anneling production line uses Resistant heating.
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| CN111850270B (en) * | 2020-07-20 | 2022-03-15 | 河南科技大学 | Processing method for improving peeling strength of copper-aluminum composite board |
| CN116039175A (en) * | 2022-12-23 | 2023-05-02 | 北京有色金属与稀土应用研究所有限公司 | Ultrathin-interface ultrathin aluminum-copper composite strip and preparation method thereof |
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