EP1204787B1 - Verfahren zum kontinuierlichen vernickeln eines aluminium-leiters und vorrichtung dazu - Google Patents
Verfahren zum kontinuierlichen vernickeln eines aluminium-leiters und vorrichtung dazu Download PDFInfo
- Publication number
- EP1204787B1 EP1204787B1 EP00953251A EP00953251A EP1204787B1 EP 1204787 B1 EP1204787 B1 EP 1204787B1 EP 00953251 A EP00953251 A EP 00953251A EP 00953251 A EP00953251 A EP 00953251A EP 1204787 B1 EP1204787 B1 EP 1204787B1
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- European Patent Office
- Prior art keywords
- conductor
- nickel plating
- nickel
- bath
- treatment
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
- C25D7/0607—Wires
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/42—Pretreatment of metallic surfaces to be electroplated of light metals
- C25D5/44—Aluminium
Definitions
- the invention relates to conductors made of aluminum or aluminum alloy nickel. It relates more specifically to the nickel plating processes of aluminum or aluminum alloy conductors, as well as allowing them to be implemented.
- the invention also relates to wires and cables aluminum or aluminum alloy cores comprising at least one nickel plated conductor.
- the word “aluminum” is understood in the broad sense of aluminum and its alloys. It will be so throughout the rest of the text.
- the word “driver” here refers to a body electrically conductive, elongated, the length of which is large by relative to its transverse dimensions, such as a wire, a band, a bar or a tube.
- Aluminum electrical conductors are widely used in the transportation of electrical energy. These drivers are most often in the form of bars, flats, wires or cables.
- Aluminum-core electrical wires and cables which may include a coating made of insulating material, are generally obtained from a wire "machine” cast and rolled continuously which is then drawn to the desired diameter. Sons, or strands, unitary can then be assembled to form the conductive core of a cable.
- aluminum conductors can be used in the raw state, that is to say without special treatment of the driver's surface, in addition to brushing possible parts of the conductor intended for the establishment of an electrical contact.
- the driver travels in at less an electrolytic nickel plating tank.
- This tank is equipped with an electrode of nickel which acts as anode and which, for this purpose, is connected to the positive terminal of a power supply.
- the driver to be treated acts as a virgin cathode and, for this, is electrically connected to the negative terminal of this power supply.
- the applicant has proposed a method and a nickel-plating device electrolytic parade of an aluminum conductor to achieve scroll speeds of 300 m / minute.
- the electrolytic current is transmitted to the driver by a so-called liquid current tap, that is to say without mechanical contact, which avoids the inconvenience of mechanical sockets, especially electric arcs.
- the driver to be coated circulates in a first tank provided with a negatively polarized electrode, then in a second vessel provided with a positively polarized electrode; an electric current then circulates in the driver during his passage in the tanks.
- the first tank contains an aqueous ionic solution capable of transmitting the electric current of the electrode to said driver.
- the second tank contains the nickel bath.
- the nickel plating of the drivers is an additional operation we are looking at both minimizing the cost and maximizing productivity.
- conductors in the form of wire or cable costs and satisfactory productivity by performing the nickeling of the elementary wires at the parade to great speed.
- some markets, such as aeronautics want have nickel-plated aluminum wire with a diameter between 0.1 and 0.5 mm, and cables consisting of such wires.
- the plaintiff therefore sought ways to obtain drivers nickel-plated aluminum with a diameter of less than 1 mm, which avoids the disadvantages of the prior art while maintaining acceptable profitability and productivity, with investment costs as low as possible.
- the subject of the invention is a method of continuous nickel plating (or "parade") of a aluminum conductor.
- the nickel plating process of an aluminum conductor or aluminum alloy according to the invention comprises a pre-treatment step P able to promote adhesion of the nickel layer and an electrolytic nickel plating step N, and is characterized by that said pre-treatment P is produced electrolytically and is also capable of conferring on the said driver sufficient contact properties to allow mechanical electrical contact and in that the nickel plating current is transmitted to said driver via a mechanical electrical contact on the driver's part after the pre-treatment step.
- the electrolytic nickel plating step N makes it possible to form, by electrodeposition, a uniform nickel layer on said conductor.
- the invention also relates to a continuous nickel plating device (or "parade”) an aluminum conductor.
- the invention mainly concerns aluminum conductors intended for for electrical applications, it also applies to aluminum conductors intended for non-electrical purposes, such as thermal uses (which exploit the high thermal conductivity of aluminum, such as a heat exchanger) or, possibly, essentially mechanical uses.
- the invention can also be applied to the nickel plating of aluminum products, such as wires, strips or tubes of aluminum, intended to be brazed.
- the subject of the invention is the use of the method or device according to the invention for the nickel plating of an aluminum product so as to allow a brazing of it.
- the nickel layer with a thickness typically of the order than 1 ⁇ m, can allow the formation of a satisfactory soldered joint without recourse to a specific soldering flux.
- the subject of the invention is also a method of manufacture of an assembled product, characterized in that it comprises the use of a product made of nickel-plated aluminum according to the invention. Said manufacturing process possibly comprises a soldering operation of said aluminum product nickel.
- Said mechanical contact (7) preferably comprises at least one rolling mechanical contact means (70) which typically comprises at least one grooved wheel or a sheave.
- the mechanical electrical contact can be made, for example, using rollers, rollers, rubbing contacts or brushes.
- the composition of the nickel plating bath is advantageously as follows: 300 ⁇ 30 g / l of Ni (NH 2 SO 3 ) 2 (sulphamate), 30 ⁇ 5 g / l of NiCl 2 , 6H 2 O, 30 ⁇ 5 g / l of H 3 BO 3 ⁇
- the nickel-plating device with the passage of at least one conductor made of aluminum or aluminum alloy (or "treatment line") comprises a nickel-plating tank (30) comprising a tank (2) capable of containing a nickel-plating bath (4) and at least one electrode (3) containing nickel, called anode, at least one power supply (5) for applying an electric voltage (V 1 ) between the or each electrode and said conductor, and means (21, 22) for scrolling the or each conductor (1) in the nickel-plating bath (4), and is characterized in that it also comprises at least one electrolytic pre-treatment tank (40, 41,42) comprising a tray (17,43,46) adapted to contain a pre-treatment bath (16,44,47), and means for scrolling the or each conductor in the pre-treatment bath (16, 44, 47), and in that it comprises mechanical contact means (7, 13, 14) for applying said electrical voltage to the part (6) of the, or e, each said driver (1) from the pre-treatment step P.
- the driver in the raw state (10)
- the pre-treatment step is chosen to give the driver properties of sufficient contact to allow mechanical electrical contact therewith.
- the pre-treatment step P is performed electrolytically, which makes it easier to control the pre-treatment according to the operating conditions of the treatment line.
- the pre-treatment tank (40) is provided with at least one electrode (15) and the device comprises a power supply (8) for the pre-treatment.
- the voltage V 2 delivered by this power supply can be alternating, continuous or pulsed, or a combination thereof.
- the socket on the conductor is made by a mechanical contact placed downstream of the pre-treatment tank (40). This mechanical power outlet is advantageously common to that of the nickel-plating step, as illustrated in FIG. 1, which makes it possible to simplify the device without leading to an overloading of the mechanical contact means (7, 13, 14).
- the intensity of the pre-treatment current (I 2 ) is generally much lower than the intensity of the nickel-plating current (I 1 ).
- the pre-treatment step P comprises an activation A in a strongly acidic or alkaline bath which allows, in particular, a rapid dissolution of the surface oxides.
- the activation is performed in an activation tank (40, 42) comprising a tank (17, 46) capable of containing the activation bath (16, 47), in which the conductor (1) scrolls.
- the activation vessel (40, 42) also comprises at least one electrode (15, 48) and the device comprises a power supply (8) for this activation.
- the voltage V 2 delivered by this power supply can be alternating, continuous or pulsed, or a combination thereof.
- the pretreatment step P comprises, in addition to an activation step A to dissolve in particular the oxides present on the surface of the conductor (1), a pre-nickeling step PN making it possible to coat the aluminum conductor (1) of a "primary" nickel deposit.
- the nickel plating current (I 1 ) is then transmitted to said conductor via mechanical contact means (7, 13, 14) on the portion (6) of the conductor (1) coated with said primary nickel deposit.
- primary nickel deposition means a layer of nickel, which is in the form of nodules, whose equivalent thickness is significantly less than the targeted thickness of the final layer. It was found preferable to aim for a thickness equivalent which is, on average, less than about 0.1 of the final thickness. Typically, the thickness of the final layer being about 1 ⁇ m, we will aim at equivalent thickness of the pre-nickel plating layer less than about 0.1 ⁇ m.
- the pre-nickel plating is carried out in a tank (40, 4 1) comprising a tank (17, 43) adapted to contain the pre-nickel bath (16, 44), in which the conductor (1) scrolls.
- the pre-nickel bath (16, 44) contains a nickel salt so as to coat the aluminum conductor of a primary nickel deposit when the driver scrolls in this bath.
- the pre-nickel plating step is preferably carried out electrolytically, which makes it easier to control the thickness of the layer depending on the operating conditions of the treatment line.
- the pre-nickel plating tank (40, 41) is provided with at least one electrode (15, 45) containing nickel and the device comprises a power supply (8) for the pre-nickel plating.
- the voltage V 2 delivered by this power supply can be alternating, continuous or pulsed, or a combination thereof.
- the PN pre-nickeling stage is wholly or partly combined with the activation step A, which greatly simplifies the device.
- the steps of pre-nickel plating and activation are carried out jointly with a liquid outlet.
- FIG. 2 illustrates a device that makes it possible to implement this variant of the invention.
- This device comprises an electrolytic activation tank (42) and a electrolytic pre-nickel plating tank (41), preferably close to each other and possibly adjacent, a first power supply (8) common to these two tanks, an electrolytic nickel plating tank (30), a second feed (5) and mechanical contact means (7, 13, 14) on the part (6) of the conductor (1) between the pre-nickel plating tank (41) and the nickel-plating tank (30).
- the first power supply (8) is preferably DC, optionally modulated or pulsed; the positive terminal is connected to at least one electrode (45) immersed, in whole or in part, in the pre-nickel bath (44) and the negative terminal is connected to at least one submerged electrode (48) in all or part, in the activation bath (47).
- the current flows through the conductor (1) through a liquid outlet effect.
- the same power supply (8) is used for activation and pre-nickel plating.
- the second power supply (5) is in direct current, possibly modulated or pulsed; the positive terminal is connected to at least one electrode (3) containing all or part of the nickel in the nickel-plating bath (4) and the negative terminal is connected to the part (6) of the conductor (1) between the tank pre-nickel plating (41) and the nickel-plating tank (30) via means of mechanical contact (7, 13, 14).
- the pre-nickel plating and activation A stages can be carried out simultaneously, in the same bath (40) and with common electrodes (15) (and having the same polarization), as illustrated in FIG.
- the pre-treatment step operates a dual function of activation and pre-nickel plating.
- the activation bath / pre-nickel plating (16) is then able to operate both treatments, for example by having a mixed composition that allows both a satisfactory activation and a sufficient pre-nickel plating.
- the Applicant has found that it is possible to effectively perform these two functions using a single bath.
- the first power supply (8) is in direct current, optionally modulated or pulsed, the positive terminal being connected to the conductor (1) via the mechanical contact (7) and the negative terminal being connected to at least one electrode (15) immersed, in whole or in part, in said bath activation / pre-nickel plating (16).
- the second power supply (5) is in direct current, optionally modulated or pulsed; the positive terminal is connected to an electrode (3) containing nickel immersed, in whole or in part, in the bath of nickel plating (4) and the negative terminal is connected to the part (6) of the conductor (1) located between the activation / pre-nickel plating tank (40) and the nickel-plating tank (30) by intermediate mechanical contact means (7, 13, 14), preferably common to those of the first diet (8).
- the mechanical contact is immersed in a liquid (14) such as water or a neutral solution, so as to avoid the melting of the conductor to the right of mechanical contact.
- a liquid (14) such as water or a neutral solution
- the device can include an intermediate tray (13), generally small, containing the liquid (14) and the mechanical contact (7).
- the liquid (14) can optionally be cooled.
- the mechanical contact may comprise several parallel wheels rotating around a common axis (as shown in Figure 3).
- the rolling mechanical contact means (70) illustrated in FIG. corresponds to a preferred embodiment of the invention, comprises one or a plurality of wheels (71) rotating about an axle (73) whose central axis (75) is substantially perpendicular to said wheels (71).
- the (or each) wheel (71) is preferably provided with a groove (74) in which the conductor (6) rests, which allows in particular to avoid variations in position thereof.
- the flow electrical transits from the axle (73) to the driver (6) via the wheel (71).
- the axle-wheel assembly (70) can be immersed in a liquid (14).
- the contact means (70) may comprise a ring (72), typically made of graphite, to facilitate the rolling of the wheels (71) around the axle (73) and to improve the electric contact. This last variant also makes it possible to avoid resorting to a ball bearing.
- the wheels (71) were in copper (possibly nickel plated) and the axle (73) was made of stainless steel.
- the mechanical contact means illustrated in FIG. 4, which also corresponds to a preferred embodiment of the invention, comprises a set of at least three wheels (701, 702, 703) which cooperate to provide satisfactory electrical contact on the (or each) driver (6).
- each driver comprises such means when several conductors are processed simultaneously.
- At least one said mechanical contact means (7, 13, 14) comprises such a means of contact.
- Each wheel rotates around a proper axis (731, 732, 733) and exerts a effort (F1, F2, F3) on the driver. In practice, it is sufficient to adjust the effort exerted on the driver by moving only the central wheel (702).
- the three wheels can be immersed in a liquid (14).
- the temperature of the different baths is generally chosen so that the ionic conductivity and the reactivity of the baths are sufficient. Typically, the bath temperature is between 45 and 60 ° C.
- the method according to the invention may comprise complementary steps, such as any shaving and / or degreasing of the driver in the raw state (10) before the activation and / or pre-nickeling step.
- the conductor is typically an AA 1370 alloy, AA 1110 or AA 6101 according to the nomenclature of the Aluminum Association.
- the process of manufacturing a cable electric aluminum can include a nickel plating operation the invention of at least one of the elementary threads.
- the device comprises means to simultaneously scroll two or more drivers in at least one said treatment tanks.
- layers of conductors of a series of separate unwinders circulate in parallel in said baths and, after treatment, wind up on a series of separate reels.
- the contact means (7, 13, 14) on the part of the conductors (6) resulting from the pre-treatment step can to be wholly or partly common to them; for example, said means can include a strip of carbon material that can be brought into contact with all the drivers of a tablecloth.
- the driver (s) can scroll horizontally, vertically or with a certain angle to the horizontal.
- Tests have been carried out on the 0.20 mm diameter wires according to the prior art and according to the invention.
- the activation and nickel-plating currents were of the same intensity and came from a common power supply configured as a liquid outlet (as described in application FR 2 646 174); screens had been interposed between the nickel electrodes and the wire (as described in the application FR 2 609 292).
- the activation and nickel plating baths had the same composition, namely: 125 ⁇ 15 g / l of nickel chloride (NiCl 2 , 6 H 2 O), 12.5 ⁇ 2 g / l of orthoboric acid and 6 ⁇ 2 ml / l of hydrofluoric acid.
- the tests according to the invention were carried out using a device similar to that of FIG. 2.
- the electrodes (48) of the activation tank (42) were made of graphite and the electrodes (45) of the pre-nickel plating tank (41) were made of nickel.
- Activation baths and pre-nickel plating baths had the following composition: 125 ⁇ 15 g / l of nickel chloride (NiCl 2 , 6 H 2 O), 12.5 ⁇ 2 g / l of orthoboric acid and 6 ⁇ 2 ml / l of hydrofluoric acid.
- the nickel plating bath had the following composition: 300 ⁇ 30 g / l of Ni (NH 2 SO 3 ) 2 (sulfamate), 30 ⁇ 5 g / l of NiCl 2 , 6H 2 O, 30 ⁇ 5 g / l of H 3 BO 3 .
- Table I below groups together the main treatment parameters used in these tests and certain characteristics of the treated son.
- the contact resistance was measured using a so-called "cross-wire” method, at an intensity of 0.1 mA and with a bearing force of 0.2 N.
- the adhesion of the layer nickel on the wire was measured by winding the wire on its own diameter; it is considered excellent if the nickel layer uniformly follows the deformation of the wire without detaching from the surface.
- Prior art Invention Scroll Speed (m / min) 50 80 Intensity of activation current-nickel plating (A) 12.5 not applicable Intensity of the pre-treatment current (A) not applicable 3-10 Intensity of the nickel-plating current (A) not applicable 15-30 Average thickness of the deposit ( ⁇ m) 0.8 0.8 Average contact resistance (m ⁇ ) 15 15 Deposit adhesion excellent excellent
- the pre-nickel plating obtained electrolytically was in the form of nodules that did not cover the entire surface of the driver.
- the term "deposit of primary nickel means a layer of nickel, the thickness of which is typically average of about 0.1 ⁇ m.
- the nickel layer obtained according to the invention therefore has high adhesion and a low electrical contact resistance.
- the invention makes it possible to nickel efficiently, and with high productivity, wires of different diameters. It allows in particular an easy adjustment of the parameters of treatment under the conditions of production, thanks to the decoupling between the pre-treatment stages and nickel plating. In particular it is possible to adjust independently the intensity of the pre-treatment and nickel-plating currents, and in particular to impose a low current intensity in the pre-treatment stage and high in the step of nickel plating.
- the invention makes it possible to benefit from the advantages of mechanical sockets, in particular the possibility of passing on high intensities, and to avoid disadvantages, in particular the propensity to form electric arcs which can damage the driver's surface.
- the low intensity of the pre-treatment current required according to the invention leads to a considerably slower aluminum enrichment of the pre-treatment bath, which significantly reduces the replacement frequency of this bath.
- the low intensity of the pre-treatment current also limits the dissolution of the metal and, in Consequently, the formation of roughnesses on the surface of the wire.
- the pre-treatment step according to the invention also makes it possible to confer on the surface of the conductor defined roughness to obtain optimal mechanical properties.
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Claims (26)
- Verfahren zum kontinuierlichen Vernickeln mindestens eines Leiters (1) aus Aluminium oder Aluminiumlegierung, umfassend einen Vorbehandlungsschritt (P), der geeignet ist, das Haftvermögen einer Nickelschicht zu begünstigen, und einen elektrolytischen Vernickelungsschritt (N), bei dem die Nickelschicht durch die Einwirkung eines sogenannten Vernickelungsstroms (In = I1) auf den Leiter abgeschieden wird, und dadurch gekennzeichnet, dass die Vorbehandlung (P) auf elektrolytischem Wege durchgeführt wird und außerdem dazu geeignet ist, dem Leiter (1) ausreichende Kontakteigenschaften zu verleihen, um einen mechanischen elektrischen Kontakt zu ermöglichen, und dass der Vernickelungsstrom In über einen mechanischen elektrischen Kontakt (7) auf dem aus dem Vorbehandlungsschritt (P) hervorgegangen Teil (6) des Leiters (1) auf den Leiter übertragen wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Vorbehandlungsschritt (P) eine Aktivierung (A) in einem stark sauren oder alkalischen Bad umfasst, die insbesondere eine schnelle Lösung der Oberflächenoxide ermöglicht.
- Verfahren nach irgendeinem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass der Vorbehandlungsschritt (P) einen Vorvernickelungsschritt (PN) umfasst, der es ermöglicht, den Leiter aus Aluminium oder Aluminiumlegierung (1) mit einer Nickelgrundierung zu überziehen.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Vorbehandlungsschritt (P) eine Aktivierung (A) in einem stark sauren oder alkalischen Bad (47) umfasst, die insbesondere eine schnelle Lösung der Oberflächenoxide ermöglicht, sowie einen Vorvernickelungsschritt (PN) in einem Vorvernickelungsbad (44), der es ermöglicht, den Leiter aus Aluminium oder Aluminiumlegierung (1) mit einer Nickelgrundierung zu überziehen, und dass der Vorvernickelungs- (PN) und der Aktivierungsschritt (A) auf elektrolytischem Wege mit einer flüssigen Stromabnahme gemeinsam durchgeführt werden.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass das Aktivierungsbad (47) und das Vorvernickelungsbad (44) im wesentlichen die gleiche Zusammensetzung haben.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Vorbehandlungsschritt (P) eine Aktivierung (A) in einem stark sauren oder alkalischen Bad umfasst, die insbesondere eine schnelle Lösung der Oberflächenoxide ermöglicht, sowie einen Vorvernickelungsschritt (PN), der es ermöglicht, den Leiter aus Aluminium oder Aluminiumlegierung (1) mit einer Nickelgrundierung zu überziehen, und dass der Vorvernickelungs- (PN) und der Aktivierungsschritt (A) gleichzeitig in demselben Bad (16) durchgeführt werden.
- Verfahren nach irgendeinem der Ansprüche 3 bis 6, dadurch gekennzeichnet, dass die Nickelgrundierung eine mittlere Äquivalentdicke von weniger als etwa 0,1 µm hat.
- Verfahren nach irgendeinem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der mechanische Kontakt (7) in eine eventuell gekühlte Flüssigkeit (14) wie Wasser oder in eine neutrale Lösung eingetaucht wird.
- Verfahren nach irgendeinem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der mechanische Kontakt (7) mindestens ein rollendes mechanisches Kontaktmittel (70) aufweist.
- Verfahren nach irgendeinem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass mehrere Leiter gleichzeitig behandelt werden.
- Verfahren nach irgendeinem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der Leiter (1) aus einer Aluminiumlegierung besteht, gewählt unter AA 1370, AA 1110 oder AA 6101 gemäß der Nomenklatur der Aluminium Association.
- Verfahren zur Herstellung eines elektrischen Kabels aus Aluminium oder Aluminiumlegierung, umfassend eine Vernickelung mindestens eines der Teildrähte gemäß dem Vernickelungsverfahren nach irgendeinem der Ansprüche 1 bis 11.
- Vorrichtung zum kontinuierlichen Vernickeln mindestens eines Leiters (1) aus Aluminium oder Aluminiumlegierung zur Durchführung des Vernickelungsverfahrens nach irgendeinem der Ansprüche 1 bis 12, welche Vorrichtung einen Vernickelungsbehälter (30) mit einem Gefäß (2) zur Aufnahme eines Vemickelungsbades (4) und mindestens einer Elektrode (3), der Anode, die Nickel enthält, mindestens eine Stromzuführung (5) zum Anlegen einer elektrischen Spannung (V1) zwischen der bzw. jeder Elektrode (3) und dem Leiter (1) sowie Mittel (21, 22) aufweist, um den Leiter (1) kontinuierlich durch das Vernickelungsbad (4) zu führen, wobei die Vorrichtung dadurch gekennzeichnet ist, dass sie außerdem einen Behälter zur elektrolytischen Vorbehandlung (40, 41, 42) mit einem Gefäß (17, 43, 46) zur Aufnahme eines Vorbehandlungsbades (16, 44, 47) sowie Mittel aufweist, um den bzw. jeden Leiter (1) kontinuierlich durch das Vorbehandlungsbad (16, 44, 47) zu führen, und dass sie mechanische Kontaktmittel (7, 13, 14) aufweist, um die Spannung an den aus dem Vorbehandlungsschritt (P) hervorgegangenen Teil (6) des bzw. jedes Leiters (1) zu legen.
- Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, dass der bzw. jeder Vorbehandlungsbehälter (40, 41, 42) mit mindestens einer Elektrode (15, 45, 48) versehen ist und dass die Vorrichtung mindestens eine Stromzuführung (8) für die Vorbehandlung (P) aufweist.
- Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, dass die elektrische Spannung der Vernickelungs- (5) und Vorbehandlungsstromzuführung (8) über dieselben mechanischen Kontaktmittel (7, 13, 14) an den Leiter (1) gelegt wird.
- Vorrichtung nach irgendeinem der Ansprüche 13 bis 15, dadurch gekennzeichnet, dass die mechanischen Kontaktmittel (7, 13, 14) ein Gefäß (13) zur Aufnahme einer Flüssigkeit (14) aufweisen, in welche der mechanische Kontakt (7) eintauchen kann.
- Vorrichtung nach irgendeinem der Ansprüche 13 bis 16, dadurch gekennzeichnet, dass sie einen Aktivierungsbehälter (42) mit einem Gefäß (46) zur Aufnahme eines Aktivierungsbades (47) und mindestens einer Elektrode (48) aufweist, dass sie einen Vorvernickelungsbehälter (41) mit einem Gefäß (43) zur Aufnahme eines Vorvernickelungsbades (44) und mindestens einer Elektrode (45) aufweist und dass sie mindestens eine gemeinsame Stromzuführung (8) für die Aktivierung (A) und die Vorvemickelung (PN) aufweist.
- Vorrichtung nach Anspruch 17, dadurch gekennzeichnet, dass die Stromzuführung für den Aktivierungs- (42) und Vorvernickelungsbehälter (41) als flüssige Stromabnahme über den Leiter (1) ausgestaltet ist.
- Vorrichtung nach irgendeinem der Ansprüche 13 bis 18, dadurch gekennzeichnet, dass sie die Vernickelung mehrerer Leiter gleichzeitig ermöglicht.
- Vorrichtung nach irgendeinem der Ansprüche 13 bis 18, dadurch gekennzeichnet, dass sie Mittel aufweist, um zwei oder mehrere Leiter gleichzeitig durch mindestens einen der Behandlungsbehälter zu führen.
- Vorrichtung nach irgendeinem der Ansprüche 13 bis 20, dadurch gekennzeichnet, dass die mechanischen Kontaktmittel (7, 13, 14) mindestens ein rollendes mechanisches Kontaktmittel (70) aufweisen.
- Vorrichtung nach Anspruch 21, dadurch gekennzeichnet, dass das bzw. jedes rollende mechanische Kontaktmittel ein oder mehrere Räder (71) aufweist, die sich um eine Radachse (73) drehen, deren Mittelachse (75) im wesentlichen quer zu den Rädern (71) verläuft.
- Vorrichtung nach Anspruch 22, dadurch gekennzeichnet, dass das bzw. jedes Rad (71) einen Ring (72) aufweist, typischerweise aus Graphit, um das Drehen der Räder (71) um die Radachse (73) zu erleichtern und den elektrischen Kontakt zu verbessern.
- Vorrichtung nach irgendeinem der Ansprüche 21 bis 23, dadurch gekennzeichnet, dass mindestens eins der mechanischen Kontaktmittel (7, 13, 14) eine Anordnung aus mindestens 3 Rädern (701, 702, 703) aufweist, welche zusammenwirken, um einen elektrischen Kontakt auf dem Leiter (6) zu gewährleisten.
- Vorrichtung nach irgendeinem der Ansprüche 22 bis 24, dadurch gekennzeichnet, dass das bzw. jedes Rad mit einer Rille versehen ist.
- Verwendung des Verfahrens nach irgendeinem der Ansprüche 1 bis 12 bzw. der Vorrichtung nach irgendeinem der Ansprüche 13 bis 25 zur Vernickelung eines Erzeugnisses aus Aluminium oder Aluminiumlegierung, wie z. B. eines Bandes oder eines Rohrs aus Aluminium oder Aluminiumlegierung, um ein Löten des Erzeugnisses zu ermöglichen.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9909690 | 1999-07-22 | ||
FR9909690A FR2796656B1 (fr) | 1999-07-22 | 1999-07-22 | Procede de nickelage en continu d'un conducteur en aluminium et dispositif correspondant |
PCT/FR2000/002061 WO2001007685A2 (fr) | 1999-07-22 | 2000-07-18 | Procede de nickelage en continu d'un conducteur en aluminium et dispositif correspondant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1204787A2 EP1204787A2 (de) | 2002-05-15 |
EP1204787B1 true EP1204787B1 (de) | 2005-03-16 |
Family
ID=9548528
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Application Number | Title | Priority Date | Filing Date |
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EP00953251A Expired - Lifetime EP1204787B1 (de) | 1999-07-22 | 2000-07-18 | Verfahren zum kontinuierlichen vernickeln eines aluminium-leiters und vorrichtung dazu |
Country Status (7)
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---|---|
US (1) | US6780303B2 (de) |
EP (1) | EP1204787B1 (de) |
AT (1) | ATE291111T1 (de) |
DE (1) | DE60018764T2 (de) |
ES (1) | ES2238300T3 (de) |
FR (1) | FR2796656B1 (de) |
WO (1) | WO2001007685A2 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
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US20060011487A1 (en) * | 2001-05-31 | 2006-01-19 | Surfect Technologies, Inc. | Submicron and nano size particle encapsulation by electrochemical process and apparatus |
US6942765B2 (en) * | 2001-05-31 | 2005-09-13 | Surfect Technologies, Inc. | Submicron and nano size particle encapsulation by electrochemical process and apparatus |
US7451906B2 (en) * | 2001-11-21 | 2008-11-18 | Dana Canada Corporation | Products for use in low temperature fluxless brazing |
US20040038070A1 (en) * | 2001-11-21 | 2004-02-26 | Dockus Kostas F. | Fluxless brazing |
US20040035910A1 (en) * | 2001-11-21 | 2004-02-26 | Dockus Kostas F. | Low temperature fluxless brazing |
US6815086B2 (en) * | 2001-11-21 | 2004-11-09 | Dana Canada Corporation | Methods for fluxless brazing |
US20060102696A1 (en) * | 2001-11-21 | 2006-05-18 | Graham Michael E | Layered products for fluxless brazing of substrates |
US20040035911A1 (en) * | 2001-11-21 | 2004-02-26 | Dockus Kostas F. | Fluxless brazing |
AU2003298904A1 (en) * | 2002-12-05 | 2004-06-30 | Surfect Technologies, Inc. | Coated and magnetic particles and applications thereof |
US20050230260A1 (en) * | 2004-02-04 | 2005-10-20 | Surfect Technologies, Inc. | Plating apparatus and method |
FR2876493B1 (fr) * | 2004-10-12 | 2007-01-12 | F S P One Soc Par Actions Simp | Cable toronne en aluminium cuivre, et procede pour sa fabrication. |
US20060157352A1 (en) * | 2005-01-19 | 2006-07-20 | Corus Aluminium Walzprodukte Gmbh | Method of electroplating and pre-treating aluminium workpieces |
WO2006086274A2 (en) * | 2005-02-08 | 2006-08-17 | Dyno Nobel Inc. | Delay units and methods of making the same |
US8084158B2 (en) * | 2005-09-02 | 2011-12-27 | A123 Systems, Inc. | Battery tab location design and method of construction |
WO2007028152A2 (en) * | 2005-09-02 | 2007-03-08 | A123 Systems, Inc. | Battery cell design and method of its construction |
DE102007022632A1 (de) * | 2007-05-11 | 2008-11-13 | Visteon Global Technologies Inc., Van Buren | Verfahren zum Verbinden von Bauteilen aus hochfestem Aluminium-Material und nach diesem Verfahren montierter Wärmeübertrager |
US8236441B2 (en) | 2007-07-24 | 2012-08-07 | A123 Systems, Inc. | Battery cell design and methods of its construction |
WO2009073492A2 (en) * | 2007-11-30 | 2009-06-11 | A123 Systems, Inc. | Battery cell design with asymmetrical terminals |
WO2010006313A1 (en) * | 2008-07-10 | 2010-01-14 | Robert Norman Calliham | Method for producing copper-clad aluminum wire |
AU2011224469B2 (en) | 2010-03-09 | 2014-08-07 | Dyno Nobel Inc. | Sealer elements, detonators containing the same, and methods of making |
CN102560579B (zh) * | 2011-12-10 | 2015-02-25 | 中国振华集团永光电子有限公司 | 一种硅铝合金电镀镍的方法 |
DE102012018159A1 (de) * | 2012-09-14 | 2014-03-20 | Feindrahtwerk Adolf Edelhoff Gmbh & Co. Kg | Verfahren zum Beschichten von Aluminiumleitern |
USD779440S1 (en) | 2014-08-07 | 2017-02-21 | Henkel Ag & Co. Kgaa | Overhead transmission conductor cable |
FR3057180B1 (fr) | 2016-12-12 | 2018-10-12 | Constellium Issoire | Procede d'amelioration du mouillage d'une surface d'un substrat solide par un metal liquide |
JP6452912B1 (ja) * | 2017-03-31 | 2019-01-16 | 古河電気工業株式会社 | めっき線棒材及びその製造方法、並びにこれを用いて形成されたケーブル、電線、コイル及びばね部材 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3867265A (en) * | 1971-03-29 | 1975-02-18 | Ericsson Telefon Ab L M | Process for electroplating an aluminum wire |
US4126522A (en) * | 1976-08-09 | 1978-11-21 | Telefonaktiebolaget L M Ericsson | Method of preparing aluminum wire for electrical conductors |
FR2526052B1 (fr) * | 1982-04-29 | 1985-10-11 | Pechiney Aluminium | Procede et dispositif pour revetir une grande longueur de metal d'une couche metallique |
DE3822503A1 (de) * | 1988-07-03 | 1990-01-04 | Lpw Galvanotechnik Gmbh | Anlage fuer die galvanotechnische behandlung von continu-behandlungsgut |
FR2646174B1 (fr) * | 1989-04-25 | 1992-04-30 | Pechiney Aluminium | Procede et dispositif de revetement en continu de substrats conducteurs de l'electricite par electrolyse a grande vitesse |
FR2650696B1 (fr) * | 1989-08-04 | 1994-09-02 | Axon Cable Sa | Procede de revetement en continu d'un conducteur au moins partiellement a base d'aluminium |
JPH10237674A (ja) * | 1997-02-20 | 1998-09-08 | Totoku Electric Co Ltd | めっきアルミニウム電線、絶縁めっきアルミニウム電線およびそれらの製造方法 |
-
1999
- 1999-07-22 FR FR9909690A patent/FR2796656B1/fr not_active Expired - Fee Related
-
2000
- 2000-07-18 DE DE60018764T patent/DE60018764T2/de not_active Expired - Lifetime
- 2000-07-18 ES ES00953251T patent/ES2238300T3/es not_active Expired - Lifetime
- 2000-07-18 AT AT00953251T patent/ATE291111T1/de not_active IP Right Cessation
- 2000-07-18 EP EP00953251A patent/EP1204787B1/de not_active Expired - Lifetime
- 2000-07-18 WO PCT/FR2000/002061 patent/WO2001007685A2/fr active IP Right Grant
-
2002
- 2002-01-18 US US10/050,896 patent/US6780303B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO2001007685A3 (fr) | 2001-10-25 |
WO2001007685A2 (fr) | 2001-02-01 |
EP1204787A2 (de) | 2002-05-15 |
FR2796656A1 (fr) | 2001-01-26 |
US6780303B2 (en) | 2004-08-24 |
US20020139685A1 (en) | 2002-10-03 |
DE60018764T2 (de) | 2006-04-13 |
ATE291111T1 (de) | 2005-04-15 |
FR2796656B1 (fr) | 2001-08-17 |
DE60018764D1 (de) | 2005-04-21 |
ES2238300T3 (es) | 2005-09-01 |
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