METHOD FOR CONTINUOUS NICKEL-PLATING OF AN ALUMINIUM CONDUCTOR AND CORRESPONDING DEVICE

摘要

The invention concerns a method for continuous nickel-plating of an aluminium conductor (1) comprising a pre-treatment step P which consists in promoting the adherence of the nickel coating and an electrolytic nickel-plating step N. The invention is characterised in that said pre-treatment P is also capable of providing said conductor (1) with contact properties sufficient to enable a mechanical electric contact and the nickel-plating current (In=I1) is transmitted to said conductor via a mechanical electric contact (7) on the part (6) of the conductor (1) obtained from the pre-treatment step P. The invention also concerns a continuous nickel-plating device of at least an aluminium conductor (1) comprising a nickel-plating tank (30) comprising a vat (4) capable of containing a nickel-plating solution (30) and at least an electrode (3), called anode, containing nickel, at least an electric supply (5) to apply an electric voltage (V1) between the, or each, electrode (3) and the, or each, said conductor (1), and means (21, 22) for continuously moving the conductor (1) in the nickel-plating solution (4). The device is characterised in that it further comprises a pre-treatment tank (40, 41, 42) comprising a vat (17, 43, 46) capable of containing a pre-treatment solution (16, 44, 47), and means for continuously moving the, or each, conductor in the pre-treatment solution (16, 44, 47), and it comprises mechanical contacting means (7, 13, 14) for applying said electric voltage to the, or each, conductor on the part (6) of the conductor (1) obtained from the pre-treatment step P.