CN1733467A - Aluminium-nickel metal welding bond and process for preparing the same - Google Patents
Aluminium-nickel metal welding bond and process for preparing the same Download PDFInfo
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- CN1733467A CN1733467A CN 200410051059 CN200410051059A CN1733467A CN 1733467 A CN1733467 A CN 1733467A CN 200410051059 CN200410051059 CN 200410051059 CN 200410051059 A CN200410051059 A CN 200410051059A CN 1733467 A CN1733467 A CN 1733467A
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Abstract
The invention relates to aluminum-nickel welding belt, which comprises connected thin aluminum belt and thin nickel belt to form complex layers structure; particularly, both the top and lowest layers of welding belt are thin nickel belts. This invention can realize easily the fusion welding between the said belts with high strength, reliable effect.
Description
[technical field]
The present invention relates to a kind of parts of electronic component, more particularly, what the present invention relates to a kind of electronic component draws lead and production technology thereof.
[background technology]
In the market, some electronic components need within it, and portion adopts aluminum or aluminum alloy as electric conductor or electrode, though, aluminium be a kind of electric conductivity well and very inexpensive again metal material, but, the crystal phase structure of aluminium is very loose, under the air ambient that exposes, the aluminium electric conductor is very easy in surface generation one deck compact oxide, though this layer compact oxide can stop profound aluminium by further oxidation, but also make simultaneously the aluminum or aluminum alloy electric conductor, electrode is difficult to be welded direct to wiring board by simple tin soldering tool, the pin of lead or other electric elements, on the electrode, in order to overcome above-mentioned shortcoming, people are usually with the aluminum or aluminum alloy electric conductor of element internal, electrode and corrosion-resistant, easily the nickel or the melting welding of nickel alloy pin of soldering couple together, and realize electrical equipment production by the nickel or the nickel alloy pin of extension, simple and easy soldering in the assembling connects.
Secondary cell with high-energy-density is an example, and lithium ion battery has been represented its developing direction, and it is becoming important requisite Power Supply fittings on the communication products such as mobile phone, mobile DVD, palm PC day by day.Lithium ion battery comprise to the shell body of being finalized the design and protecting, the core within the shell body is the core body that is made of positive and negative electrode.And the collector body of anode electrode wherein is the aluminum or aluminum alloy material.In order from the negative electrode collector of aluminum or aluminum alloy material, to draw pin, existing method is to adopt ultra-sonic welded (being friction welding (FW)) that aluminium strip and nickel strap hot melt are coupled together, the principle of this method is: produce ultrasonic high-frequency vibration by ultrasonic horn on metal interface, this ultrasonic high-frequency vibration causes violent friction and the heat between metal interface, heat makes the metal molten on the interface and interpenetrates, and promptly reaches the purpose of welding behind the cooling curing.
Existing ultra-sonic welded technology adopts the frictional heat principle, therefore it is not high to weld heating efficiency, relatively poor to the metal fever fusion welding effect that fusing point is higher, for example: the fusing point of pure nickel is about 1450 ℃, the fusing point of nickel alloy is also up to more than 1000 ℃, like this, general ultra-sonic welded machinery is difficult to realize good welding effect between the aluminium nickel: in most cases aluminium strip and nickel strap are simple mechanical snap only, and are not firm welding.For realizing that good melting welding fully just needs to adopt the very big ultra-sonic welded machinery of power between aluminium, nickel, but the machinery of the ultra-sonic welded that power is big more, price is expensive more, finally causes investment significantly to be risen with production cost, is unfavorable for that product wins in market competition.In order to overcome the above-mentioned shortcoming of ultra-sonic welded technology, people also consider for example resistance spot welding of precision welding connection technology of other form in the electronic component structure field.Find that by a large amount of practices resistance spot welding is also incompetent for the welding between the aluminium nickel electrode.Because electric resistance welding is to pass to certain electric current at workpiece tie point place, utilizes electric current to produce a large amount of heat at short notice and realize welding after with the metal molten of junction.From principle, the electric resistance welding mode is to utilize the fuel factor of electric current to carry out sweat soldering, and heating efficiency is very high, and hot melt and welding effect should be also fine.But in fact exactly so, possible reason is: metallic aluminium is the comparatively loose metal material of a kind of quality, and fusing point lower (about 670 ℃), and resistivity is less; And the fusing point of nickel metal higher (about 1450 ℃), resistivity is bigger, therefore these two kinds of metals difference on fusing point and resistivity is bigger, cause heat and electric current all mainly to concentrate on the lower aluminium interface of fusing point, if electric current is too small, even aluminium begins to have melted, at all do not soften but nickel is also unmoved, can't reach the purpose of welding; And make nickel begin softening or fusing as electric current is increased, then because aluminium strip meeting under this electric current is burnt by moment or blown, the purpose of welding still can't reach.Based on similar above-mentioned practical experience, people have formed such common recognition: aluminium, nickel are two kinds of metals that are difficult to realize welding, in production of electronic components, use general welding method to comprise that the resistance spot welding method all can't carry out melting welding to aluminium strip and nickel strap effectively and be connected.
In relevant therewith field, people did some technology explorations and improvement, as Chinese patent file 97122110.3, a kind of nickel alloy pluramelt and production method thereof are wherein disclosed, this method is with cheap steel plate, as mild steel plate or carbon steel sheet, be soldered on the expensive good acidproof corrosion-resistant nickel-base alloy plate and a kind of nickel alloy pluramelt that makes.This method system adopts a thin bond plate, as a thin nickel plate, thin stainless steel base plate, nickel strap or stainless steel band, at first attaches on the steel plate.Then, by seam electric resistance welding method one nickel-base alloy plate is welded on the steel plate, this bond plate is inserted between nickel alloy plate and the steel plate.It is said that this method can save the consumption of noble metal nickel plate and the Unit Weight of pluramelt greatly.But this method mainly is the welding that is applied between nickel alloy plate and the steel plate.
Relevant technology exploration and improvement, see Chinese patent file 98808976.9, a kind of aluminium alloy sheet that is used for spot welding is wherein disclosed, this aluminium alloy sheet is mainly used in automobile case, for guaranteeing that this aluminium alloy sheet can be when the continuous resistance spot welding, to containing the distortion minimum of copper electrode, and has stable weldability, this technology is mainly added some other elements in the aluminium alloy sheet material, the alloy composition of this aluminium alloy comprises and contains 2-6wt.%Mg, the initial aluminum latten of 0.15-1.0wt.%Fe and 0.03-2.0wt.%Mn, in addition, also comprise one cover with when welding employed electrode be close to a lip-deep superficial layer of the initial aluminum latten that presses, described superficial layer comprises the particle of compound between granular metal, its diameter is equal to or higher than 0.5 μ m, and density is 4,000 particle/mm
2Or it is higher.This method relates to some difficult points of aluminium alloy welding, but its improve mainly be at the component of aluminium alloy and prevent electrode with soldered aluminium alloy plate between generation alloy deformation structure.This technology can not solve the technical barrier in nickel, the aluminium welding production reality.
[summary of the invention]
At the above-mentioned shortcoming of prior art, the technical purpose that the present invention will reach is that solid and reliable aluminium nickel metal welding tape splicing of a kind of effect that can realize intensity height that aluminium strip is connected with melting welding between nickel strap and welds, connection easily and preparation method thereof will be provided.
For this reason, technical scheme of the present invention is a kind of aluminium nickel metal welding tape splicing, and this welding band comprises aluminium strip and the nickel strip that melting welding connects, the stacked formation sandwich construction of described aluminium strip and nickel strip, and the superiors and the orlop of welding band are the nickel strip.The hierarchical structure that aluminium nickel metal welding tape splicing of the present invention adopts innovation is promptly: the superiors and orlop at the welding band are the nickel strip, form the hierarchical structure that contains strips such as aluminium of nickel strip clamping internal layer.Production practices prove: such interlayer structure can be good at the metallic nickel sheet that utilizes fusing point high/bring double team to live low-melting metal aluminium flake/band, after resistance spot weld imports the junction of aluminium strip and nickel strap by single needle or crosspointer electrode with electric current, although the aluminium strip still may melt in advance than the nickel strip, but because the not direct contacting metal aluminium of spot-wedling electrode, and the nickel strip is clamped in aluminium strip both sides, make molten aluminum liquid can't evaporate escape, and then, since the thermal conductive resin of metallic aluminium make its can be rapidly with self the nickel strip on heat transferred both sides, and progressively with the fusing of nickel strip interface, nickel aluminium hands over molten cooling back to form firm pad and structure.This shows that the interlayer structure of metal welding tape splicing of the present invention can make the high metallic nickel of the fusing point heat more than needed that metallic aluminium produced on the absorption interface preferably, when realizing self melting welding, low-melting metallic aluminium is protected; And by above-mentioned melting welding Analysis on Mechanism and experimental results show that as can be known, the effect that aluminium nickel metal welding tape splicing of the present invention connects is solid and reliable, the intensity of its welding even can surpass the intensity of aluminum substrate itself.
As some alternative examples, the present invention takes following concrete corrective measure: the thickness that the present invention welds the metal sheet band of metal sheet band on the different levels of band and/or similar material equates or does not wait; Described nickel strip equates with the thickness of aluminium strip or does not wait; Described welding band has the interlayer structure that nickel strip and aluminium strip replace, and the number of plies of described welding band is odd number, and wherein preferred 3 or 5 layers nickel strip and aluminium strip are as taking the welding band of nickel/aluminium/nickel, nickel/aluminium/nickel/aluminium/interlayer structures such as nickel.The material of described nickel strip is pure nickel or alloy nickel, and the material of described aluminium strip is fine aluminium or alloy aluminum.Nickel content in the described alloy nickel material is greater than 80%; Aluminium content in the described alloy aluminum material is greater than 95%.The thickness of nickel strip and two kinds of metal sheet bands of aluminium strip is 0.01～0.30mm.Preferred thickness is 0.05～0.15mm.Above-mentioned these measures are convenient to optimize more the various processing or the properties of product of metal welding tape splicing, open up application prospects more.
Correspondingly, another technical scheme of the present invention is a kind of preparation method of above-mentioned aluminium nickel metal welding tape splicing, this method is made described welding band with nickel strip and the stacked welding of aluminium strip, this method comprises the steps: A) two nickel strips are stacked and placed on individual layer aluminium strip two sides respectively, perhaps, form the nickel strip by stacked nickel strip and be in the superiors and orlop and the stepped construction of clamping internal layer strip; B) positive and negative electrode with electric resistance welding equipment is connected with undermost nickel strip with the superiors respectively; C) the opening resistor soldering equipment is implemented welding, obtains described welding band finished product.Method of the present invention is to realize that by the mode that folder welds aluminium strip is connected with the melting welding of nickel strap, being about to nickel strap places the both sides double team of aluminium strip to live aluminium strip to weld again, thereby can simplify the welding of aluminium strip and nickel strap greatly, can reduce the requirement that welding equipment is comprised electric resistance welding equipment widely, for example, adopt method of the present invention, can the stability and the accuracy of the current impulse of resistance welder not done special requirement, promptly adopt prevailing resistance welder to carry out the spot welding mode and just can realize welding between nickel sheet and the aluminium flake easily, and welding is effective, the intensity of welding improves greatly, thereby, reduced the welding production cost significantly.
The present invention takes following concrete corrective measure:
At step B) in, the positive electrode of electric resistance welding equipment is connected with the nickel strip of the superiors by spot welding metal large knitting needle, and the negative electrode of electric resistance welding equipment is connected with undermost nickel strip by metal plate.Certainly two pointer type spot welding also is feasible welding method.
At step C) in, the output voltage of positive and negative electrode of regulating described electric resistance welding equipment is at 100 volts～200 volts.Preferred voltage is 130～170V.
Adopting one of the most suitable field of method of the present invention is to make the field at ion secondary battery.Method of the present invention and product are in the manufacturing field of polymer (flexible package) lithium ion battery, has particularly important meaning, use method of the present invention just can successfully realize the purpose that is connected between the positive collector body of aluminium strip and nickel strap lug making the production cost of lithium ion battery further descend by simple electric resistance welding method and equipment.
In a word, structure of the present invention and method improvement have be easy to implement, advantage effective, with low cost.
Below, with accompanying drawing technical solution of the present invention is described further in conjunction with specific embodiments.
[description of drawings]
Fig. 1 is the structural representation of metal welding tape splicing embodiment 1 of the present invention.
Fig. 2 is the structural representation of metal welding tape splicing embodiment 2 of the present invention.
Fig. 3 is the structural representation of the inventive method embodiment.
[specific embodiment]
Metal welding tape splicing embodiment 1
As Fig. 1, be depicted as a kind of aluminium nickel metal welding tape splicing, this welding band comprises aluminium strip 1 and the nickel strip 2 that melting welding connects, aluminium strip 1 and three layers of interlayer structure that replaces of nickel strip 2 stacked formations, the superiors and the orlop of welding band are nickel strip 2.The thickness of the nickel strip 2 on the different levels equates to be 0.05mm., the thickness of aluminium strip 1 is 0.15mm.。
The material of nickel strip 2 is a pure nickel, and the material aluminium content of aluminium strip is greater than 95% alloy aluminum.
Metal welding tape splicing embodiment 2
As Fig. 2, be depicted as a kind of aluminium nickel metal welding tape splicing, this welding band comprises aluminium strip 1 and the nickel strip 2 that melting welding connects, aluminium strip 1 and five layers of interlayer structure that replaces of nickel strip 2 stacked formations, and the superiors and the orlop of welding band are nickel strip 2.
The thickness of the nickel strip 2 on the superiors and orlop are inferior is 0.1mm.The thickness of the aluminium strip 1 on inferior upper strata and the inferior level down is 0.1mm, and the thickness of middle nickel strip 2 is 0.08mm.
The material of nickel strip 2 is a nickel content greater than 90% alloy nickel, and the material of aluminium strip is a fine aluminium.
Method embodiment
As Fig. 3, be depicted as the Apparatus and method for of the aluminium nickel metal welding tape splicing described in a kind of embodiment of preparation 1, this method is gone ahead of the rest nickel strip 2 and aluminium strip 1 promptly stacked: two nickel strips 2 are stacked and placed on individual layer aluminium strip 1 two sides respectively, undermost nickel strip 2 tilings are placed on the metal plate 6; Negative electrode 4 with electric resistance welding equipment is connected with metal plate 6 again, the positive electrode 3 of electric resistance welding equipment is connected with spot welding metal large knitting needle 5, the opening resistor soldering equipment, the output voltage of the positive and negative electrode of adjusting electric resistance welding equipment is at 130～170V, operation spot welding metal bar pin 5 needs welds to implement spot welding at the nickel strip 2 of the superiors to connect, and obtains welding band finished product of the present invention after finishing the welding of some points.
Claims (10)
1, a kind of aluminium nickel metal welding tape splicing, this welding band comprises aluminium strip and the nickel strip that melting welding connects, the stacked formation sandwich construction of described aluminium strip and nickel strip, it is characterized in that: the superiors of described welding band and orlop are the nickel strip.
2, aluminium nickel metal welding tape splicing as claimed in claim 1 is characterized in that: the thickness of the strip on the different levels equates or does not wait.
3, aluminium nickel metal welding tape splicing as claimed in claim 1, it is characterized in that: described nickel strip equates with the thickness of aluminium strip or does not wait.
4, as claim 1,2, one of 3 described aluminium nickel metal welding tape splicings, it is characterized in that: described welding band has the interlayer structure that nickel strip and aluminium strip replace, and the number of plies of described welding band is an odd number.
5, as claim 1,2, one of 3 described aluminium nickel metal welding tape splicings, it is characterized in that: the material of described nickel strip is pure nickel or alloy nickel, and the material of described aluminium strip is fine aluminium or alloy aluminum.
6, aluminium nickel metal welding tape splicing as claimed in claim 5, it is characterized in that: the nickel content in the described alloy nickel material is greater than 80%; Aluminium content in the described alloy aluminum material is greater than 95%.
7, as claim 1,2, one of 3 described aluminium nickel metal welding tape splicings, it is characterized in that: the thickness of described nickel strip and aluminium strip is 0.01～0.30mm.
8, a kind of preparation method as the described aluminium nickel of one of claim 1～7 metal welding tape splicing, this method is made described welding band with nickel strip and the stacked welding of aluminium strip, it is characterized in that, described method comprises the steps: A) two nickel strips are stacked and placed on individual layer aluminium strip two sides respectively, perhaps, form the nickel strip by stacked nickel strip and be in the superiors and orlop and the stepped construction of clamping internal layer strip; B) positive and negative electrode with electric resistance welding equipment is connected with undermost nickel strip with the superiors respectively; C) the opening resistor soldering equipment is implemented welding, obtains described welding band finished product.
9, the preparation method of aluminium nickel metal welding tape splicing as claimed in claim 8, it is characterized in that: at described step B) in, described positive electrode is connected with the nickel strip of the superiors by spot welding metal large knitting needle, and described negative electrode is connected with undermost nickel strip by metal plate.
10, the preparation method of aluminium nickel metal welding tape splicing as claimed in claim 8 is characterized in that: at described step C) in, the output voltage of positive and negative electrode of regulating described electric resistance welding equipment is at 100 volts～200 volts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410051059XA CN100396481C (en) | 2004-08-12 | 2004-08-12 | Aluminium-nickel metal welding bond and process for preparing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410051059XA CN100396481C (en) | 2004-08-12 | 2004-08-12 | Aluminium-nickel metal welding bond and process for preparing the same |
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| Publication Number | Publication Date |
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| CN1733467A true CN1733467A (en) | 2006-02-15 |
| CN100396481C CN100396481C (en) | 2008-06-25 |
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| CNB200410051059XA Expired - Fee Related CN100396481C (en) | 2004-08-12 | 2004-08-12 | Aluminium-nickel metal welding bond and process for preparing the same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163587A (en) * | 2011-03-23 | 2011-08-24 | 常州市兴源电子有限公司 | Interconnecting aluminum tape for packaging integrated circuit |
| CN111069776A (en) * | 2020-01-06 | 2020-04-28 | 江苏远航精密合金科技股份有限公司 | Method for improving welding strength of pure nickel strip and aluminum strip for electronic industry |
| CN113001024A (en) * | 2021-03-18 | 2021-06-22 | 松山湖材料实验室 | Laser welding method for dissimilar materials |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3523530B2 (en) * | 1999-06-17 | 2004-04-26 | Ｎｅｃトーキン栃木株式会社 | Non-aqueous electrolyte battery |
| KR101012530B1 (en) * | 2002-08-29 | 2011-02-07 | 가부시키가이샤 네오맥스 마테리아르 | Aluminum/Nickel Clad Material, and Method for Manufacture Thereof and Exterior Terminal for Electric Cell |
-
2004
- 2004-08-12 CN CNB200410051059XA patent/CN100396481C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163587A (en) * | 2011-03-23 | 2011-08-24 | 常州市兴源电子有限公司 | Interconnecting aluminum tape for packaging integrated circuit |
| CN111069776A (en) * | 2020-01-06 | 2020-04-28 | 江苏远航精密合金科技股份有限公司 | Method for improving welding strength of pure nickel strip and aluminum strip for electronic industry |
| CN113001024A (en) * | 2021-03-18 | 2021-06-22 | 松山湖材料实验室 | Laser welding method for dissimilar materials |
| 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 |
| CN115647035B (en) * | 2022-09-19 | 2024-09-13 | 江苏中色复合材料有限公司 | Nickel-aluminum-nickel composite material, composite process and application |
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| CN100396481C (en) | 2008-06-25 |
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