CN106670231B - A kind of preparation method of aluminium nickel double metal composite strip - Google Patents
A kind of preparation method of aluminium nickel double metal composite strip Download PDFInfo
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- CN106670231B CN106670231B CN201611148165.9A CN201611148165A CN106670231B CN 106670231 B CN106670231 B CN 106670231B CN 201611148165 A CN201611148165 A CN 201611148165A CN 106670231 B CN106670231 B CN 106670231B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
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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
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/02—Transverse dimensions
- B21B2261/04—Thickness, gauge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/20—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/22—Hardness
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Organic Chemistry (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Metal Rolling (AREA)
Abstract
A kind of preparation method of aluminium nickel double metal composite strip, belong to metal material processing field, the preparation method carries out Rolling compund by the nickel strap of the aluminium strip and soft annealing that will heat and obtains aluminium nickel compound belt blank, then annealing is diffused to aluminium nickel compound belt blank, and pass through room temperature rolling, the hardness of aluminium nickel compound belt blank is controlled, aluminium nickel double metal composite strip finished product is obtained.Aluminium nickel double metal composite strip is prepared using the method for the present invention, have the advantages that simple for process, easily operated, properties of product are easy to control, interface bond strength is high and product post forming performance is good, disclosure satisfy that the performance requirement of lithium battery pole ear aluminium nickel double metal composite strip product.
Description
Technical field：
The invention belongs to metal material processing technical field, more particularly to a kind of preparation side of aluminium nickel double metal composite strip
Method.
Background technology：
In recent years, the demands such as portable electronic product such as mobile phone, laptop rapidly increase and to the sides of light high-efficiency
To development, thus all kinds of battery products as its power resources also obtained it is great development and it is gradually close to lightweight, high energy
Degree direction is developed.In order to achieve this goal, the case material majority of current battery is changed to aluminium from steel, due to battery outside
Draw and is extremely generally asked using electric conductivity and all preferable pure nickel material of corrosion resistance, the welding thus brought between nickel material and aluminium
Topic.Ideal method is drawn outside between extreme nickel material and shell aluminium using a kind of aluminium/nickel bimetal composite band as welding
Transition zone.
Currently, there are many preparation methods of bimetallic composite band, as roll-bonding method, extrusion cladding method, explosion composite method,
Reverse solidification method, casting and roll process etc., but it is roll-bonding method to obtain in actual production widely applied.In order to realize the first of interface
Generally required when in conjunction with, Rolling compund be more than 50% a large deformation, it is hard that this can cause compound constituent element to generate serious processing
Change, for aluminium/nickel complex system, the fusing points of two constituent elements, recrystallization temperature and mechanical property difference are larger, therefore roll
Make it is compound after diffusion annealing softening completely simultaneously both difficult to realize, meanwhile, aluminium nickel compound interface is changed between being easy to generate metal
Object is closed, combined strength bination is caused to seem especially prominent with the conflicting property that nickel layer hardness controls.Therefore, using traditional rolling work
When skill produces aluminium nickel double metal composite band, the bond strength of composite layer and the hardness control difficulty of composite band are big.
Invention content：
The object of the present invention is to when for using traditional rolling mill practice production aluminium nickel double metal composite band, composite layer
The big technical barrier of the hardness control difficulty of bond strength and composite band, provides a kind of preparation of aluminium nickel double metal composite strip
Method, the preparation of the aluminium nickel double metal composite strip for making lithium battery pole ear, this method by the aluminium strip that will heat with it is soft
Nickel strap after annealing carries out Rolling compund, obtains aluminium nickel compound belt blank, is then diffused annealing and room temperature rolling obtains aluminium
The method of nickel double metal composite strip finished product.
To achieve the above object, the present invention uses following technical scheme：
A kind of preparation method of aluminium nickel double metal composite strip, includes the following steps：
Step 1, nickel strap softens
After nickel strap is carried out soft annealing, the nickel strap after soft annealing is formed；Wherein, the temperature of soft annealing be 700~
800 DEG C, soft annealing soaking time is 20~30min；
Step 2, prepared by aluminium nickel compound belt blank
After taking aluminium strip to be heated to 300~500 DEG C, with the nickel strap after soft annealing, Rolling compund is carried out at room temperature, is obtained
Aluminium nickel compound belt blank；Wherein, Rolling compund deflection is 20~45%；
Step 3, interface improved treatment
Aluminium nickel compound belt blank is diffused annealing, obtains the aluminium nickel compound belt blank of interfacial bonding property improvement；Wherein, it spreads
Annealing temperature is 300~550 DEG C, and diffusion annealing soaking time is 5~180min；
Step 4, hardness controls
The aluminium nickel compound belt blank of interfacial bonding property improvement is subjected to room temperature rolling, obtains aluminium nickel double metal composite strip, institute
It is 0.12~0.8mm to state aluminium nickel double metal composite strip thickness, and hardness is HV80~230；Wherein, room temperature rolling deflection is 0
~60%.
In the step 1, the thickness of purity >=99.9% of nickel strap, nickel strap is 0.1~1mm.
In the step 1, the nickel strap surface after soft annealing is through over cleaning oil removing and grinding process, wherein polishing side
Formula is that belt sanding or wire brush are polished.
In the step 2, the thickness of purity >=99.5% of aluminium strip, aluminium strip is 0.1~1mm.
In the step 1 and step 2, the thickness of raw material aluminium and raw material nickel material, according to the double gold of the aluminium nickel of required preparation
Belong to aluminium nickel thickness ratio in the thickness and aluminium nickel double metal composite strip of composite strip to determine.
In the step 2, before heating, surface is through over cleaning oil removing and grinding process for aluminium strip；The polishing mode
It polishes for belt sanding or wire brush.
In the step 4, room temperature rolling deflection is wanted according to the hardness of the aluminium nickel double metal composite strip of required preparation
Ask determining, when the aluminium nickel compound belt blank hardness for the interfacial bonding property improvement that step 3 obtains meets finished product aluminium nickel double metal composite band
When material requires, then it is not necessarily to carry out the room temperature rolling operation of step 4, i.e. room temperature rolling deflection is 0%；The interface that step 3 obtains
The aluminium nickel compound belt blank of associativity improvement, as finished product aluminium nickel double metal composite strip.
The preparation method of the aluminium nickel double metal composite strip of the present invention, aluminium strip is heated, can reduce and roll in Rolling compund
The first pass deformation of compound tense processed, reduces the deformation processing hardening of very little (occur) of soft state nickel strap, after such Rolling compund
The aluminium nickel compound belt blank of formation is substantially at soft state, and therefore, the diffusion annealing of the aluminium nickel compound belt blank after Rolling compund only needs
The intensity of compound interface is controlled, and the hardness of finished product aluminium nickel double metal composite strip can be rolled by the room temperature after control diffusion annealing
Deflection processed is easily realized.
Beneficial effects of the present invention：
(1) present invention is compound by the nickel strap progress room temperature rolling of soft state after the aluminium strip of heating and soft annealing, reduces head
The deflection of the compound deflection of passes and nickel strap can get the aluminium nickel compound belt blank without hardening substantially, solve expansion
Dissipate the contradiction that should ensure that the intensity of compound interface again softens nickel strap layer when annealing；
(2) in aluminium nickel double metal composite strip preparation process of the invention, the compound belt blank after diffusion annealing is carried out not
With the room temperature rolling of deflection, it is convenient to the hardness of control targe product.
Description of the drawings：
Fig. 1 is the structural schematic diagram of the aluminium nickel double metal composite strip of the present invention, wherein 1- aluminium strips, 2- nickel straps；
Fig. 2 is the aluminium nickel double metal composite strip flexuosity reference chart of the present invention；
Fig. 3 is the SEM photograph of aluminium nickel double metal composite strip compound interface prepared by the embodiment of the present invention 1；
Fig. 4 is the SEM photograph of aluminium nickel double metal composite strip compound interface prepared by the embodiment of the present invention 2；
Fig. 5 is the SEM photograph of aluminium nickel double metal composite strip compound interface prepared by the embodiment of the present invention 3.
Specific implementation mode：
With reference to embodiment, the present invention is described in further detail.
The structural schematic diagram of aluminium nickel double metal composite strip prepared by Examples 1 to 7, as shown in Figure 1；Wherein, 1- aluminium strips,
2- nickel straps；
The flexuosity reference chart of aluminium nickel double metal composite strip prepared by Examples 1 to 7, as shown in Figure 2.
Embodiment 1
A kind of preparation method of aluminium nickel double metal composite strip, includes the following steps：
Step 1, nickel strap softens
It is the nickel strap of 0.1mm to take purity >=99.9%, thickness, nickel strap is carried out soft annealing, the temperature of soft annealing is
700 DEG C, anneal 30min, forms the nickel strap after soft annealing, and carry out cleaning oil removing to the nickel strap surface after soft annealing, and
Belt sanding processing；
Step 2, prepared by aluminium nickel compound belt blank
It is that the aluminium strip of 0.1mm adds after surface is handled through over cleaning oil removing and belt sanding to take purity >=99.5%, thickness
Heat is to after 500 DEG C, and the nickel strap after polishing with soft annealing carries out Rolling compund at room temperature, and deflection 20% obtains aluminium nickel
Compound belt blank；
Step 3, interface improved treatment
Aluminium nickel compound belt blank is diffused annealing, diffusion annealing temperature is 300 DEG C, soaking time 180min, is obtained
Thickness is the aluminium nickel double metal composite strip of 0.16mm, hardness HV90, the SEM of the compound interface of aluminium nickel double metal composite strip
Photo, as shown in figure 3, interface compound is discontinuous.
Embodiment 2
A kind of preparation method of aluminium nickel double metal composite strip, includes the following steps：
Step 1, nickel strap softens
It is the nickel strap of 0.5mm to take purity >=99.9%, thickness, nickel strap is carried out soft annealing, the temperature of soft annealing is
750 DEG C, anneal 25min, forms the nickel strap after soft annealing, and carry out cleaning oil removing to the nickel strap surface after soft annealing, and
Belt sanding processing；
Step 2, prepared by aluminium nickel compound belt blank
It is the aluminium strip of 0.5mm to take purity >=99.5%, thickness, and surface is handled through over cleaning oil removing and belt sanding, heating
To after 400 DEG C, the nickel strap after polishing with soft annealing carries out Rolling compund at room temperature, and deflection 30%, obtaining thickness is
The aluminium nickel compound belt blank of 0.7mm；
Step 3, interface improved treatment
Aluminium nickel compound belt blank is diffused annealing, diffusion annealing temperature is 400 DEG C, and diffusion annealing soaking time is
120min obtains the aluminium nickel compound belt blank of interfacial bonding property improvement, the SEM photograph of compound interface, as shown in figure 4, interface is formed
The compound of about 0.5 μ thickness；
Step 4, hardness controls
The aluminium nickel compound belt blank of interfacial bonding property improvement is subjected to room temperature rolling, deflection 30%, obtaining thickness is
The aluminium nickel double metal composite strip of 0.49mm, hardness HV135.
Embodiment 3
A kind of preparation method of aluminium nickel double metal composite strip, includes the following steps：
Step 1, nickel strap softens
It is the nickel strap of 1mm to take purity >=99.9%, thickness, nickel strap is carried out soft annealing, the temperature of soft annealing is 800
DEG C, time 20min forms the nickel strap after soft annealing, and carries out cleaning oil removing and steel to the nickel strap surface after soft annealing
Wire brush grinding process；
Step 2, prepared by aluminium nickel compound belt blank
Take purity >=99.5%, thickness is the aluminium strip of 1mm, surface through over cleaning oil removing, and or wire brush grinding process after,
After being heated to 300 DEG C, the nickel strap after polishing with soft annealing carries out Rolling compund at room temperature, and deflection 45% obtains thick
Degree is the aluminium nickel compound belt blank of 1.1mm；
Step 3, interface improved treatment
Aluminium nickel compound belt blank is diffused annealing, diffusion annealing temperature is 550 DEG C, and diffusion annealing soaking time is
5min obtains the aluminium nickel compound belt blank of interfacial bonding property improvement, the SEM photograph of compound interface, as shown in figure 5, interface compound
Discontinuously；
Step 4, hardness controls
The aluminium nickel compound belt blank of interfacial bonding property improvement is subjected to room temperature rolling, deflection 60%, obtaining thickness is
The aluminium nickel double metal composite strip of 0.44mm, hardness HV225.
Embodiment 4
A kind of preparation method of aluminium nickel double metal composite strip, includes the following steps：
Step 1, nickel strap softens
It is the nickel strap of 0.5mm to take purity >=99.9%, thickness, nickel strap is carried out soft annealing, the temperature of soft annealing is
750 DEG C, anneal 25min, forms the nickel strap after soft annealing, and carry out cleaning oil removing to the nickel strap surface after soft annealing, and
Belt sanding processing；
Step 2, prepared by aluminium nickel compound belt blank
It is the aluminium strip of 0.5mm to take purity >=99.5%, thickness, and surface is handled through over cleaning oil removing and belt sanding, heating
To after 400 DEG C, the nickel strap after polishing with soft annealing carries out Rolling compund at room temperature, and deflection 30%, obtaining thickness is
The aluminium nickel compound belt blank of 0.7mm；
Step 3, interface improved treatment
Aluminium nickel compound belt blank is diffused annealing, diffusion annealing temperature is 400 DEG C, and diffusion annealing soaking time is
120min obtains the aluminium nickel double metal composite strip that thickness is 0.7mm, hardness HV80.
Embodiment 5
A kind of preparation method of aluminium nickel double metal composite strip, includes the following steps：
Step 1, nickel strap softens
It is the nickel strap of 1mm to take purity >=99.9%, thickness, nickel strap is carried out soft annealing, the temperature of soft annealing is 710
DEG C, anneal 30min, forms the nickel strap after soft annealing, and carry out cleaning oil removing and abrasive band to the nickel strap surface after soft annealing
Grinding process；
Step 2, prepared by aluminium nickel compound belt blank
Purity >=99.5% is taken, thickness is the aluminium strip of 1mm, after surface is handled through over cleaning oil removing and belt sanding, heating
To after 500 DEG C, the nickel strap after polishing with soft annealing carries out Rolling compund at room temperature, and it is multiple to obtain aluminium nickel for deflection 20%
Crossed belt base；
Step 3, interface improved treatment
Aluminium nickel compound belt blank is diffused annealing, diffusion annealing temperature is 350 DEG C, soaking time 150min, is obtained
The aluminium nickel compound belt blank of interfacial bonding property improvement；
Step 4, hardness controls
The aluminium nickel compound belt blank of interfacial bonding property improvement is subjected to room temperature rolling, deflection 60%, obtaining thickness is
The aluminium nickel double metal composite strip of 0.64mm, hardness HV230.
Embodiment 6
A kind of preparation method of aluminium nickel double metal composite strip, includes the following steps：
Step 1, nickel strap softens
It is the nickel strap of 0.1mm to take purity >=99.9%, thickness, nickel strap is carried out soft annealing, the temperature of soft annealing is
700 DEG C, anneal 30min, forms the nickel strap after soft annealing, and carry out cleaning oil removing to the nickel strap surface after soft annealing, and
Belt sanding processing；
Step 2, prepared by aluminium nickel compound belt blank
It is that the aluminium strip of 0.1mm adds after surface is handled through over cleaning oil removing and belt sanding to take purity >=99.5%, thickness
Heat is to after 500 DEG C, and the nickel strap after polishing with soft annealing carries out Rolling compund at room temperature, and deflection 20% obtains thickness
For the aluminium nickel compound belt blank of 0.16mm；
Step 3, interface improved treatment
Aluminium nickel compound belt blank is diffused annealing, diffusion annealing temperature is 300 DEG C, soaking time 180min, is obtained
The aluminium nickel compound belt blank of interfacial bonding property improvement；
Step 4, hardness controls
The aluminium nickel compound belt blank of interfacial bonding property improvement is subjected to room temperature rolling, deflection 25%, obtaining thickness is
The aluminium nickel double metal composite strip of 0.12mm, hardness HV125.
Embodiment 7
A kind of preparation method of aluminium nickel double metal composite strip, includes the following steps：
Step 1, nickel strap softens
It is the nickel strap of 1mm to take purity >=99.9%, thickness, nickel strap is carried out soft annealing, the temperature of soft annealing is 780
DEG C, anneal 28min, forms the nickel strap after soft annealing, and carry out cleaning oil removing and abrasive band to the nickel strap surface after soft annealing
Grinding process；
Step 2, prepared by aluminium nickel compound belt blank
It is the aluminium strip of 1mm to take purity >=99.5%, thickness, and surface handles through over cleaning oil removing and belt sanding, is heated to
After 450 DEG C, the nickel strap after polishing with soft annealing carries out Rolling compund at room temperature, and deflection 20%, obtaining thickness is
The aluminium nickel compound belt blank of 1.6mm；
Step 3, interface improved treatment
Aluminium nickel compound belt blank is diffused annealing, diffusion annealing temperature is 400 DEG C, and diffusion annealing soaking time is
160min obtains the aluminium nickel compound belt blank of interfacial bonding property improvement；
Step 4, hardness controls
The aluminium nickel compound belt blank of interfacial bonding property improvement is subjected to room temperature rolling, deflection 50%, obtaining thickness is
The aluminium nickel double metal composite strip of 0.8mm, hardness HV210.
Claims (5)
1. a kind of preparation method of aluminium nickel double metal composite strip, which is characterized in that include the following steps：
Step 1, nickel strap softens
After nickel strap is carried out soft annealing, the nickel strap after soft annealing is formed；Wherein, the temperature of soft annealing is 700~800
DEG C, soft annealing soaking time is 20~30min；
Step 2, prepared by aluminium nickel compound belt blank
After taking aluminium strip to be heated to 300~500 DEG C, with the nickel strap after soft annealing, Rolling compund is carried out at room temperature, obtains aluminium nickel
Compound belt blank；Wherein, Rolling compund deflection is 20~45%；
Step 3, interface improved treatment
Aluminium nickel compound belt blank is diffused annealing, obtains the aluminium nickel compound belt blank of interfacial bonding property improvement；Wherein, diffusion annealing
Temperature is 300~550 DEG C, and diffusion annealing soaking time is 5~180min；
Step 4, hardness controls
The aluminium nickel compound belt blank of interfacial bonding property improvement is subjected to room temperature rolling, obtains aluminium nickel double metal composite strip, the aluminium
Nickel double metal composite strip thickness is 0.12~0.8mm, and hardness is HV80~230；Wherein, room temperature rolling deflection be 0~
60%.
2. the preparation method of aluminium nickel double metal composite strip according to claim 1, which is characterized in that the step 1
In, the thickness of purity >=99.9% of nickel strap, nickel strap is 0.1~1mm.
3. the preparation method of aluminium nickel double metal composite strip according to claim 1, which is characterized in that the step 1
In, the nickel strap surface after soft annealing is through over cleaning oil removing and grinding process；Wherein, the polishing mode be belt sanding or
Wire brush is polished.
4. the preparation method of aluminium nickel double metal composite strip according to claim 1, which is characterized in that the step 2
In, the thickness of purity >=99.5% of aluminium strip, aluminium strip is 0.1~1mm.
5. the preparation method of aluminium nickel double metal composite strip according to claim 1, which is characterized in that the step 2
In, before heating, surface is through over cleaning oil removing and grinding process for aluminium strip；Wherein, the polishing mode is belt sanding or steel
Wire brush is polished.
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| CN114082958B (en) * | 2021-11-23 | 2024-04-19 | 无锡市东杨新材料股份有限公司 | Preparation method of nickel-copper bimetal composite strip |
| CN115647035A (en) * | 2022-09-19 | 2023-01-31 | 江苏中色复合材料有限公司 | Nickel-aluminum-nickel composite material, composite process and application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2873487Y (en) * | 2005-11-09 | 2007-02-28 | 余鹏 | Aluminum-nickel bimetal composite strip |
| CN1962255A (en) * | 2005-11-09 | 2007-05-16 | 余鹏 | Aluminium nickel double metal composite strip and its production process |
| CN101402100A (en) * | 2008-11-04 | 2009-04-08 | 安徽省鑫源达有色金属材料有限公司 | Method for producing nickel-aluminum composite belt |
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2016
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2873487Y (en) * | 2005-11-09 | 2007-02-28 | 余鹏 | Aluminum-nickel bimetal composite strip |
| CN1962255A (en) * | 2005-11-09 | 2007-05-16 | 余鹏 | Aluminium nickel double metal composite strip and its production process |
| CN101402100A (en) * | 2008-11-04 | 2009-04-08 | 安徽省鑫源达有色金属材料有限公司 | Method for producing nickel-aluminum composite belt |
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