Sollac

Other

Gerard Colin

Andre Klein

Jacques Keller

Gilbert Bertrand

Pierre Gasperment

Georges Michel

Guy Dupoyet

Jean-Marc Truchot

Gerard Cottet

The installation comprises a set of radial type cells (25a, 25b). The electrical supply of the strip (16) to be coated constituting the cathode is ensured by way of two electrically conducting deflector rollers (20) each mounted rotatably about an axle parallel to the axle of the drum (8) of the electrolysis cell. The deflector rollers (20) are arranged at least in part below the upper level of the drum (8) close to its outer surface. Two support rollers (21a, 21b) associated with each of the deflector rollers ensure the holding of the strip against the deflector roller over a substantial part of its periphery and as far as a zone close to the part of the outer surface of the drum (8) which is submerged in the electrolytic liquid (2). The invention applies in particular to the electrogalvanizing of a steel sheet.

Installation and process for electrolytic coating of a metal strip

A rotary conductor roll intended to be partially immersed in an electrolyte in a manufacturing line for continuously electroplating a strip (2), the roll includes, on its periphery, at least one electrically conductive active zone (3) and at least one coated zone (41) coated with a flexible material which may optionally be associated with an adhesive and which serves to seal the contact between the strip (2) and the conductive active zone (3) from the electrolyte. At least one intermediate ring (42) is interposed between said conductive active zone (3) and said coated zone (41), said intermediate ring being made of a polymer for which at least one of the following coefficients is intermediate in value between the corresponding coefficients of the material constituting the conductive active zone (3) and of the material constituting said coated zone (41), said coefficients being: coefficient of expansion, flexibility, and swelling due to contact with the electrolyte, e.g. by absorption or by chemical combination.

Rotary conductor roll for continuously electroplating metal strip or

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Plappeville, France

Gerard Colin