Aluminum cell cathode coating method

Coating processes – Electrical product produced – Carbon coating

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Details

4271261, 204 67, 204294, B05D 512, C25C 306, C25B 1112

Patent

active

044669968

ABSTRACT:
This invention relates to a method for the application of a coating composition containing Refractory Hard Material to a cathode substrate to prepare an aluminum wettable cathode surface.
A mixture of Refractory Hard Material and carbon system is applied to a cathode substrate, cured and carbonized to a non-graphitized carbon matrix containing Refractory Hard Material, characterized by strong bonding of said matrix to said substrate and an ablation rate of said carbon matrix similar to the combined rate of wear and dissolution of the Refractory Hard Material.

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patent: 3429759 (1969-02-01), Kellar et al.
patent: 3492208 (1970-01-01), Seager
patent: 3616045 (1969-02-01), Kozar et al.
patent: 3657592 (1972-04-01), Kellar
patent: 3661736 (1972-05-01), Holliday
patent: 4190242 (1980-02-01), Bolza-Schunemann
patent: 4308114 (1981-12-01), Das et al.
patent: 4349185 (1982-09-01), Small et al.

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