Method and apparatus for continuous galvanic or chemical...

Details Method and apparatus for continuous galvanic or chemical... Method and apparatus for continuous galvanic or chemical...

C - Chemistry, Metallurgy

25

D

C25D 5/08 (2006.01) C25D 7/04 (2006.01) C25D 11/00 (2006.01)

Patent

CA 2156644

Nozzle body acting as an insoluble anode for the galvanic or chemical treatment of rod-shaped or pipe-shaped objects continuously moved through the nozzle body and acting as cathode. The nozzle body is arranged in a hollow body serving as a pressure vessel, the electrolyte flowing through the hollow body. The hollow body has a plurality of radial bore holes (44) acting as nozzles, these bore holes (44) being arranged in a plurality of cross-sectional regions (11) lying at a distance from one another and being inclined at angles (.alpha.) and (.beta.) relative to the longitudinal axis (16) of the nozzle body (34) and relative to the respective cross- sectional region (11). Diaphragms (36) are associated with the nozzle body (34) which is coated on all sides with a layer of metal from the platinum group. The diaphragms (36) are arranged in the through-opening (35) of the nozzle body (34), surround the body (15) to be treated, and are situated in planes (A, B, C, D and E) between the outlet openings of the bore holes (44). The through-flow openings (37) of the diaphragms (36) are enlarged in cross section in a stepwise manner in the direction opposite to the throughput direction (5) of the body (15) for the purpose of preventing a pressure drop in the nozzle body (34).

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