Current distribution assembly for electrode used in an electroly

Details Current distribution assembly for electrode used in an electroly Current distribution assembly for electrode used in an electroly

1986-03-21

1987-02-24

Kaplan, G. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204 67, 204243R, 204294, 204297R, C25D 1712

Patent

active

046455825

ABSTRACT:
An improved electrode assembly is disclosed for use in a cell for the production of metal by electrolytic reduction comprising a nonmetallic conductive electrode having a top surface and a central current carrying support shaft received in a central bore extending axially downward from the top surface. Conductive fin members extend radially from the central support shaft in the electrode, the fin members comprising a plurality of gate members extending radially from the central shaft adjacent a top surface of the electrode and wing members extending from the gate members downwardly into the electrode from the top surface. The gate members are provided with tapered surfaces extending toward the center of the electrode whereby expansion of both the nonmetallic and the metallic portions of the electrode assembly will enhance the electrical contact between the wing members and the nonmetallic portions of the electrode to thereby further minimize the voltage drop in the electrode. The electrode assembly is further provided with braces for the gate members to inhibit cracking of the gate members during thermal expansion of the electrode assembly. Collar means, which surround the central shaft, are provided with divergently tapered interlocking means which will serve to retain the electrode assembly together despite inadvertent cracking of either the metallic or nonmetallic portions of the electrode assembly.

REFERENCES:
patent: 4552638 (1985-11-01), Voegel et al.
patent: 4557817 (1985-12-01), Voegel et al.

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