Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Treating substrate prior to coating
Patent
1995-08-28
1997-01-21
Valentine, Donald R.
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Treating substrate prior to coating
205219, 205670, 205671, 205672, 205687, 204206, 204272, 204273, C25D 204, C25D 508, C25D 534, C25D 1700
Patent
active
055956408
ABSTRACT:
Nozzle body acting as an insoluble anode for the galvanic or chemical treent 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 acting as nozzles, these bore holes being arranged in a plurality of cross-sectional regions lying at a distance from one another and being inclined at angles (.alpha.) and (.beta.) relative to the longitudinal axis of the nozzle body and relative to the respective cross-sectional region. Diaphragms are associated with the nozzle body which is coated on all sides with a layer of metal from the platinum group. The diaphragms are arranged in the through-opening of the nozzle body, surround the body to be treated, and are situated in planes between the outlet openings of the bore holes. The through-flow openings of the diaphragms are enlarged in cross section in a stepwise manner in the direction opposite to the throughput direction of the body for the purpose of preventing a pressure drop in the nozzle body.
REFERENCES:
patent: 2970950 (1961-02-01), Bahmann
patent: 3894924 (1975-07-01), Toledo
patent: 3896010 (1975-07-01), Vetter
patent: 3994786 (1976-11-01), Marks et al.
patent: 4409071 (1983-10-01), Dibble
Metallglanz Gesellschaft fuer Entgratung und Oberflaechentechnik
Valentine Donald R.
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