EP1647996A1 - Verkupferter Aluminium Strangkabel und sein herstellungsverfahren - Google Patents
Verkupferter Aluminium Strangkabel und sein herstellungsverfahren Download PDFInfo
- Publication number
- EP1647996A1 EP1647996A1 EP05356180A EP05356180A EP1647996A1 EP 1647996 A1 EP1647996 A1 EP 1647996A1 EP 05356180 A EP05356180 A EP 05356180A EP 05356180 A EP05356180 A EP 05356180A EP 1647996 A1 EP1647996 A1 EP 1647996A1
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- EP
- European Patent Office
- Prior art keywords
- wire
- nickel
- copper
- approximately
- diameter
- Prior art date
- 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.)
- Granted
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 37
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 37
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 27
- 239000010949 copper Substances 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 106
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 53
- 239000004020 conductor Substances 0.000 claims abstract description 34
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims description 39
- 238000005868 electrolysis reaction Methods 0.000 claims description 27
- 239000002344 surface layer Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 229920001021 polysulfide Polymers 0.000 claims description 11
- 238000000137 annealing Methods 0.000 claims description 10
- 238000005238 degreasing Methods 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 9
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 claims description 9
- 230000007935 neutral effect Effects 0.000 claims description 9
- 239000005077 polysulfide Substances 0.000 claims description 9
- 150000008117 polysulfides Polymers 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 238000000151 deposition Methods 0.000 claims description 7
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 5
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 4
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 4
- KERTUBUCQCSNJU-UHFFFAOYSA-L nickel(2+);disulfamate Chemical compound [Ni+2].NS([O-])(=O)=O.NS([O-])(=O)=O KERTUBUCQCSNJU-UHFFFAOYSA-L 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 3
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 abstract description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 238000011282 treatment Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000012085 test solution Substances 0.000 description 3
- 238000005491 wire drawing Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- HYHCSLBZRBJJCH-UHFFFAOYSA-N sodium polysulfide Chemical compound [Na+].S HYHCSLBZRBJJCH-UHFFFAOYSA-N 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000135309 Processus Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-M sulfamate Chemical compound NS([O-])(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-M 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/023—Alloys based on aluminium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0006—Apparatus or processes specially adapted for manufacturing conductors or cables for reducing the size of conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/02—Stranding-up
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/008—Power cables for overhead application
Definitions
- the present invention relates to conductors made of aluminum or copper-plated and nickel-plated aluminum alloy. It relates more particularly to electrical cables comprising at least one core conductor made of aluminum or aluminum alloy covered with a layer of copper itself covered with a layer of nickel.
- the word “aluminum” broadly designates aluminum and its alloys.
- the word “conductor” refers to an elongated electrically conductive body, the length of which is large relative to its cross-section, and which is generally in the form of a wire.
- Aluminum-based electrical conductors are widely used in the transportation of electrical energy.
- Aluminum-core electrical wires and cables may include a coating of insulating material, and single wires or strands may 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 conductor surface.
- Nickel plated aluminum wire strand electrical cables have already been used for example in aeronautical applications. There are more than one hundred kilometers of such cables in some current airliners.
- aluminum has the advantage of reducing weight: for the same electrical resistance, an aluminum conductor weighs about half the weight of a copper conductor.
- DE 196 33 615 A1 discloses the use of an aluminum wire having a copper coating on which is applied an outer layer of nickel.
- Document FR 2 083 323 describes an aircraft cable having copper coated aluminum wires itself covered with a layer of nickel. Each conductor is isolated by one or more layers of plastic material.
- US 3,915,667 A discloses coating an aluminum conductor with an inner coating of tin or zinc, then with a copper-based layer, then with a nickel coating, and finally with an outer layer of tin or aluminum. 'money.
- the nickel interlayer has a thickness of between about 2.5 ⁇ m and 12.7 ⁇ m. It is not specified the interest of a resistant surface layer of nickel, nor the means to achieve it.
- the object of the invention is to propose a new structure of stranded cable for conduction of electric current having both a low electrical resistivity, good flexibility, a sufficiently large breaking load, good electrical contact properties, good anticorrosive properties for long-term use in aggressive conditions, and good capacities to absorb mechanical tightenings of electrical connection.
- a problem is in particular to provide a protective nickel surface layer which has a satisfactory quality, both in sealing and in adhesion on the lower layer of the conductor, but which does not substantially disturb the other properties of the conductor such as electrical conductance , flexibility, weight, load at break.
- the invention proposes an electric conductor of the aluminum cable type comprising at least one strand based on conducting wires having an aluminum core covered with an intermediate layer of copper, the intermediate layer of copper being itself covered with a surface layer of nickel.
- the invention provides such a surface layer of nickel in a thickness of between about 1.3 ⁇ m and 3.0 ⁇ m, this superficial layer of nickel having sufficient continuity to withstand a polysulfide bath continuity test for at least 30 seconds without showing visible copper etching areas at 10x magnification.
- the polysulfide bath continuity test is defined by the ASTM B298 standard established by the American Society for Testing Materials.
- the thickness of the nickel surface layer is between about 2 ⁇ m and 3 ⁇ m.
- it may be a cable comprising a strand of 37 son of 0.32 or 0.25 mm in diameter.
- the cable may comprise a strand of 19 son of 0.30 or 0.25 or 0.20 mm in diameter.
- nickel-plated copper alloy core wire surrounded by six nickel-plated copper aluminum wires of about 0.25 or 0.20 mm in diameter.
- the cable can be stranded according to one or more concentric strands or concentric strands, or concentric unilay.
- the strand or strands and / or the cable may then be covered with an insulating layer of polyimide, and an outer layer of polytetrafluoroethylene.
- This method makes it possible in particular to avoid the appearance of oxides at the interfaces between the layers, in particular under the nickel layer, which oxides may then cause, during the drawing, discontinuities in the nickel surface layer, and thus reduce the protective and contact properties of this layer.
- the neutral gas may advantageously be nitrogen.
- the temperature can be about 250 ° C. for a period of at least about two hours.
- Step d) is particularly critical.
- the temperature of the electrolysis bath can be maintained between about 55 ° C and 65 ° C
- the pH of the electrolysis bath can be maintained between about 2.3 and 3.0
- the current density can be between 10 and 16 amperes per square decimetre (A / dm 2 )
- the nickel concentration can be kept below about 140 grams per liter in the electrolysis bath. This makes it possible to more surely achieve a conductor that satisfies the optical polysulfide bath protection test mentioned above.
- step d it is possible to predict that the temperature of the electrolysis bath is about 60 ° C., that the pH of the electrolysis bath is about 2.4, that the density current is about 15 to 16 amperes per square decimetre (A / dm 2 ).
- the method may comprise a step prior to o ) calibrating the copper-plated aluminum roughing wire in size and hardness.
- the copper-plated aluminum roughing wire may have, for example, a load at break less than or equal to 20 decaNewtons per square millimeter (daN / mm 2 ) approximately, and an elongation of between 2 and about 3%. In this way, it is still avoided, during drawing, the appearance of gaps or discontinuities in the surface layer of nickel.
- the sulfamic acid bath may advantageously have a concentration of about 40 grams per liter.
- the initial diameter of the copper-plated aluminum roughing wire may be between about 1.2 and 0.8 mm.
- the nickel deposit is then carried out in a thickness of about 10 to 15 ⁇ m.
- the final diameter of the coppered and nickel-plated aluminum wire is between 0.51 mm and 0.20 mm.
- the stranding step g) is preferably carried out before the annealing step h).
- the annealing step h) is preferably carried out before the stranding step g).
- FIG. 1 which illustrates the structure of a conductor wire 1 according to one embodiment of the invention, is firstly considered.
- a core 2 of aluminum covered with an intermediate layer 3 of copper, itself covered with a surface layer 4 of nickel.
- the aluminum constituting the core 2 may be pure aluminum or an aluminum alloy.
- a 99.5% aluminum alloy having at most 0.10% silicon and at most 0.40% iron may be preferred.
- the wire may have a final total diameter D F of between about 0.51 mm and 0.20 mm. Other diameter values may however be used, depending on the characteristics sought.
- the copper of the intermediate layer 3 may advantageously represent 15% by volume of the wire. This leads to a wire having the following characteristics: a density at 20 ° C of about 3.60 kilograms per cubic decimeter, a resistivity of 2.78 ⁇ 10 -8 ohms per meter, a conductivity of 60% to 64% IACS, typically 62% IACS, a breaking load of 138 Newtons per square millimeter and a minimum elongation of 6%.
- the above son are stranded together by the usual techniques of forming cables.
- a strand 5 of 19 wires, such as wire 1 it is possible to make a strand 5 of 19 wires, such as wire 1, according to a concentric strand structure, the layers being of alternate directions.
- a strand 6 of 19 wires, such as the wire 1 was made according to a strand structure unilay, the layers being of the same direction.
- Smaller section structures may include seven-stranded strands 7 having a central strand 7a and six peripheral strands 7b-7g, as illustrated in FIG. 4.
- the central strand 7a may be of nickel-plated copper alloy, while the Peripheral strands 7b-7g are copper-plated and nickel-plated aluminum like the wire 1 of FIG. 1.
- mixed strands 7 are produced, in which the load at break is increased by this structure and the conductivity is reduced simultaneously, to the detriment of the weight.
- the thickness E of the surface layer 4 of nickel must be greater than 1.3 ⁇ m, failing which it can be seen that the surface layer 4 of nickel is not sufficiently continuous to ensure effective protection of the intermediate layer 3 of copper. It is not advantageous to make a nickel layer whose thickness is greater than about 3 ⁇ m, since this adversely affects the other properties of the conductor such as electrical conductance, flexibility, load at break, and this reduces substantially the speed of manufacture of the driver.
- the thickness E of the surface layer 4 of nickel will be between about 2 ⁇ m and 3 ⁇ m, and a good compromise is obtained with a surface layer 4 whose thickness E is equal to about 2.3 ⁇ m.
- cables will be made with different numbers of wires and strands depending on the range.
- a cable may comprise 7 strands of 10 or 15 wires each, the wires having a unit diameter of about 0.51 mm.
- a cable is formed comprising seven strands of 19 son each, the son having a unit diameter of about 0.275 mm.
- a cable is formed comprising a strand of 61 wires of about 0.32 mm in diameter.
- the cable comprises a strand of 37 wires of about 0.32 or 0.25 mm.
- the cable comprises a strand of 19 son of 0.30 or 0.25 or 0.20 mm, according to a structure of Figures 2 or 3.
- the cables with smaller section will consist of a nickel-plated copper alloy core wire 7a, surrounded by six son 7b-7g of copper-plated and nickel-plated aluminum of 0.25 or 0.20 mm in diameter.
- the strands can then be covered with an insulating layer of polyimide and an outer layer of polytetrafluoroethylene.
- a larger diameter copper aluminum blank wire D 1, as illustrated in FIG. of blank wire 8 being between 2 and 5 times the desired final diameter D F of the wire, for example from 0.8 to 1.2 millimeters approximately. This allowed a fast, industrially economical treatment.
- the blank wire 8 was processed by a method illustrated in FIGS. 6 and 7.
- the roughing wire 8 consisted of an aluminum core 8a, covered with a copper surface layer 8b, the copper representing 15% by volume of the assembly.
- FIG. 6, which schematically illustrates the general structure of a device for manufacturing a yarn according to a method of the invention, is now considered.
- the roughing wire 8 passes firstly into an ultrasound device 9, which performs a first degreasing.
- the wire then passes into an anode degreasing tank 10, which performs anodic degreasing in a bath 11 which may for example contain sodium hydroxide and surfactants.
- a bath 11 which may for example contain sodium hydroxide and surfactants.
- the wire then passes into a rinsing device 12, producing a rinsing of the wire with demineralised water.
- the yarn then passes into a tray 13 containing a sulfamic acid bath 14.
- the sulfamic acid concentration may advantageously be about 40 grams per liter. This provides a surface treatment of the copper layer, facilitating the subsequent adhesion of nickel.
- the wire then passes into an electrolytic nickel deposition device 15, which provides a suitable deposition of a surface layer of nickel.
- the device will be described in more detail in connection with FIG. 7.
- the wire then passes into a second rinsing device 16, which rinses the wire with deionized water.
- the wire then passes into a wire drawing device 17, in which a complete oil drawing is carried out to the final diameter, that is to say in the range of about 0.51 - 0.20 mm in diameter.
- wire drawing takes place at a different speed than previous treatments. It is therefore necessary to provide an intermediate step during which the wire is packaged in a coil after the rinsing step in the rinsing device 16, and the wire is coated with a film of whole oil which protects it until to a subsequent drawing treatment.
- the wire passes through an oven 18 associated with a source of neutral gas 19 such as nitrogen, in which the wire is annealed under nitrogen at about 240 ° C. for about two hours. This produces a wire 1 output, as shown in Figure 1.
- a source of neutral gas 19 such as nitrogen
- the result obtained by this method may depend on the size and the structure of the blank wire 8.
- a roughing wire having a breaking load of less than or equal to about 20 daN per mm 2 , and an elongation of between about 2 and 3%, with a constant dimension selected from the range of diameters between three and a half. times and five times the desired final diameter of the wire.
- FIG. 7 is now considered for the description of the device 15 carrying out the step of depositing the nickel layer by electrolysis.
- the device comprises an internal overflow tank 20, containing the electrolysis bath 21 which discharges, as indicated by the arrow 22, into an external tank 23 which contains the internal tank 20.
- the liquid collected in the outer tank 23 is sent by pipes 24 in a storage tank 25, from which the liquid is returned to the inner tank 20 by a pump 26 and a pipe 27.
- a nickel metal reserve 28 is housed in the inner tank 20, inside the electrolysis bath 21.
- the blank wire 8 is moved and guided through the inner tank 20, in several passages, and comes out after depositing a layer of nickel on its surface.
- the nickel reserve 28 is electrically connected to the positive pole of an electric generator 29 whose negative pole is connected to the wire 8.
- the electrolysis bath 21 contains nickel sulphamate in aqueous solution. Good results require permanent control of the concentration of the electrolysis bath 21. This is done by connecting the storage tank 25 to a water supply 30, to a purge line 31, to a source of sulfamic acid 32 The pH of the electrolysis bath 21 is controlled by a pH sensor 33 acting on a regulator which controls the operation of the corresponding valves to withdraw a quantity of liquid from the electrolysis bath 21 via the purge pipe 31, to add water by the water supply 30, and to add sulfamic acid by the sulfamic acid source 32.
- the pH of the electrolysis bath was advantageously maintained between about 2.3 and 3.0, preferably close to 2.4.
- the temperature of the electrolysis bath 21 was also regulated, by means of a temperature sensor 34 and heating means 35, so that the electrolysis bath was for example at a temperature of approximately 60 ° C.
- the nickel sulfamate concentration in the electrolysis bath 21 was kept low, for example less than 140 grams per liter of nickel. Otherwise, the superficial layer of nickel would have been too hard, and would have poorly supported the subsequent drawing.
- the electric generator 29 is adapted to regulate the electrolysis current density.
- the electrolysis current density has advantageously been maintained within a range of values of between 10 and 16 A / dm 2 ; preferably between 15 and 16 A / dm 2 .
- a difficulty has been in determining the good, acceptable or poor quality of the nickel coating produced by the process.
- a polysulfide bath test according to ASTM B298 has been successfully used, with a specific optical examination, which provides an overall result of quality control of the coating, highlighting any gaps or microcracks in the nickel coating.
- a sample of yarn 1 is first defatted by immersion in a suitable organic solvent such as benzene, trichlorethylene or a mixture of ether and alcohol for at least 3 minutes. It is then removed and dried by wiping with a soft, clean cloth. The wire sample 1 should be held in the tissue until the test is complete, and should not be touched by hand.
- a suitable organic solvent such as benzene, trichlorethylene or a mixture of ether and alcohol
- a concentrated solution of polysulfide is prepared by dissolving sodium sulphide crystals in deionized water until saturation at about 21 ° C and adding enough sulfur flower to obtain complete saturation, which can be controlled by the presence of an excess of sulfur when the solution has sat for at least 24 hours.
- the test solution was made by diluting a portion of the concentrated solution with deionized water to a specific gravity of 1.142 at 15.6 ° C.
- the sodium polysulfide test solution should have sufficient strength to fully blacken a section of copper wire within 5 seconds. The test solution will not be considered exhausted as long as it can blacken a piece of copper.
- a solution of hydrochloric acid is prepared simultaneously by diluting the commercial hydrochloric acid with distilled water to a density of 1.088 measured at 15.6 ° C. A portion of the acid solution hydrochloric acid with a volume of 180 milliliters will be considered exhausted if it can not suppress in 45 seconds the silver discoloration due to immersion in the polysulfide.
- the sample of yarn 1 having a length of at least 114 mm was immersed for 30 seconds in a polysulfide bath 37 containing the above-described solution of sodium polysulfide maintained at a temperature of between 15.degree. 6 ° C and 21 ° C.
- wire sample 1 is rinsed with deionized water 38, and dried with a soft, clean cloth.
- the sample of yarn 1 was immediately immersed for 15 seconds in a hydrochloric acid solution described above, then washed thoroughly with deionized water and dried with a clean, soft cloth.
- the sample of wire 1 is examined, for example using a binocular loupe 41 in magnification x 10. No attention will be paid to the end zones of the wire sample. 1, that is, the areas within 12.7 mm of each end.
- a sample of yarn 1 taken from a thread of good quality, illustrated in the photograph of FIG. 9, does not show any visible mark of attack of the lower layer of copper by the polysulphide bath. It is estimated that an attack mark is visible when it has an area of at least 0.02 mm 2 in magnification x 10 (corresponding to a spot of 0.01 mm side at magnification 1).
- the electrical conductors according to the present invention may advantageously be used in all types of applications requiring a good compromise between conductivity, load at break, flexibility, weight, and long-term protection, especially in the aeronautics, in the automobile, and generally in all types of mobiles.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Non-Insulated Conductors (AREA)
- Insulated Conductors (AREA)
- Electroplating Methods And Accessories (AREA)
- Conductive Materials (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL05356180T PL1647996T3 (pl) | 2004-10-12 | 2005-10-05 | Kabel linowy z aluminium pokrytego miedzią oraz sposób jego wytwarzania |
DE602005005598.3T DE602005005598T3 (de) | 2004-10-12 | 2005-10-05 | Verkupfertes Aluminium Strangkabel und sein Herstellungsverfahren |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0411024A FR2876493B1 (fr) | 2004-10-12 | 2004-10-12 | Cable toronne en aluminium cuivre, et procede pour sa fabrication. |
Publications (5)
Publication Number | Publication Date |
---|---|
EP1647996A1 true EP1647996A1 (de) | 2006-04-19 |
EP1647996A9 EP1647996A9 (de) | 2006-07-05 |
EP1647996B1 EP1647996B1 (de) | 2008-03-26 |
EP1647996B9 EP1647996B9 (de) | 2008-08-13 |
EP1647996B2 EP1647996B2 (de) | 2016-11-16 |
Family
ID=34949494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05356180.9A Active EP1647996B2 (de) | 2004-10-12 | 2005-10-05 | Verkupfertes Aluminium Strangkabel und sein Herstellungsverfahren |
Country Status (9)
Country | Link |
---|---|
US (1) | US7105740B2 (de) |
EP (1) | EP1647996B2 (de) |
CN (1) | CN1760993B (de) |
AT (1) | ATE390694T1 (de) |
DE (2) | DE05356180T1 (de) |
ES (1) | ES2259944T1 (de) |
FR (1) | FR2876493B1 (de) |
PL (1) | PL1647996T3 (de) |
TW (1) | TWI391525B (de) |
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FR2083323A1 (de) * | 1970-03-16 | 1971-12-17 | British Insulated Callenders | |
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DE2052462B2 (de) | 1970-10-26 | 1980-09-11 | Kabel- Und Metallwerke Gutehoffnungshuette Ag, 3000 Hannover | Verfahren zur kontinuierlichen Herstellung kupferplattierter Aluminiumdrähte |
DE2306602C2 (de) | 1973-02-10 | 1983-05-11 | kabelmetal electro GmbH, 3000 Hannover | Verfahren und Vorrichtung zur Herstellung kupferplattierter Aluminiumdrähte |
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-
2004
- 2004-10-12 FR FR0411024A patent/FR2876493B1/fr active Active
-
2005
- 2005-10-05 ES ES05356180T patent/ES2259944T1/es active Pending
- 2005-10-05 DE DE05356180T patent/DE05356180T1/de active Pending
- 2005-10-05 EP EP05356180.9A patent/EP1647996B2/de active Active
- 2005-10-05 PL PL05356180T patent/PL1647996T3/pl unknown
- 2005-10-05 DE DE602005005598.3T patent/DE602005005598T3/de active Active
- 2005-10-05 AT AT05356180T patent/ATE390694T1/de not_active IP Right Cessation
- 2005-10-11 TW TW094135308A patent/TWI391525B/zh not_active IP Right Cessation
- 2005-10-11 US US11/247,834 patent/US7105740B2/en active Active
- 2005-10-12 CN CN2005101127458A patent/CN1760993B/zh not_active Expired - Fee Related
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FR2083323A1 (de) * | 1970-03-16 | 1971-12-17 | British Insulated Callenders | |
DE2052462B2 (de) | 1970-10-26 | 1980-09-11 | Kabel- Und Metallwerke Gutehoffnungshuette Ag, 3000 Hannover | Verfahren zur kontinuierlichen Herstellung kupferplattierter Aluminiumdrähte |
DE2153316A1 (de) | 1971-10-26 | 1973-05-03 | Kabel Metallwerke Ghh | Verfahren zur herstellung kupferplattierter aluminiumdraehte |
DE2306602C2 (de) | 1973-02-10 | 1983-05-11 | kabelmetal electro GmbH, 3000 Hannover | Verfahren und Vorrichtung zur Herstellung kupferplattierter Aluminiumdrähte |
US3915667A (en) * | 1973-09-20 | 1975-10-28 | Westinghouse Electric Corp | Abrasion resistant coating for aluminum base alloy and method |
EP0477029B1 (de) | 1990-09-20 | 1995-01-04 | Totoku Electric Co., Ltd. | Verfahren zur Herstellung eines heissgetauchten Drahtes |
DE19633615A1 (de) * | 1996-08-21 | 1998-02-26 | Edelhoff Adolf Feindrahtwerk | Verfahren zum Aufbringen einer lötbaren metallischen Außenbeschichtung auf einen Draht aus einer Aluminiumlegierung |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008025547A1 (de) * | 2006-09-01 | 2008-03-06 | W.C.Heraeus Gmbh | Aluminium aufweisende bonddrähte mit eingebetteten kupferfasern |
CN104064256A (zh) * | 2014-07-16 | 2014-09-24 | 武汉纵缆通模具有限公司 | 异型线绞合电缆导体及其生产方法 |
CN104064256B (zh) * | 2014-07-16 | 2016-05-04 | 武汉纵缆通模具有限公司 | 异型线绞合电缆导体及其生产方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1647996A9 (de) | 2006-07-05 |
CN1760993B (zh) | 2011-05-11 |
ATE390694T1 (de) | 2008-04-15 |
ES2259944T1 (es) | 2006-11-01 |
US7105740B2 (en) | 2006-09-12 |
DE602005005598D1 (de) | 2008-05-08 |
PL1647996T3 (pl) | 2008-09-30 |
EP1647996B9 (de) | 2008-08-13 |
EP1647996B1 (de) | 2008-03-26 |
DE05356180T1 (de) | 2006-10-12 |
TW200626746A (en) | 2006-08-01 |
DE602005005598T2 (de) | 2009-04-30 |
US20060102368A1 (en) | 2006-05-18 |
FR2876493A1 (fr) | 2006-04-14 |
FR2876493B1 (fr) | 2007-01-12 |
TWI391525B (zh) | 2013-04-01 |
DE602005005598T3 (de) | 2017-04-06 |
CN1760993A (zh) | 2006-04-19 |
EP1647996B2 (de) | 2016-11-16 |
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