Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1975-04-28
1977-03-08
Tufariello, T. M.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
156645, C25F 306, C25F 302
Patent
active
040111504
ABSTRACT:
A method for the treatment of the surface of refining elements or segments is disclosed. The refining segment surfaces, which generally include grooves and ridges, are normally subjected to mechanical polishing or grinding prior to use, thereby smoothing the surface of the ridges of the refining segments and depositing a surface layer of material thereon. This surface layer is removed according to the invention disclosed, by either mechanical or chemical means, in order to permit the uniform wear of the ridges during use, and to roughen that surface. This may be accomplished chemically, for example, by such processes as electrolysis and etching with various acids.
REFERENCES:
patent: 3347760 (1967-10-01), McKelvie
patent: 3689387 (1972-09-01), Jumer
Electrolytic Polishing by J. S. Crout, Metal Industry, June 8, 1945, pp. 357-359.
Sca Development Aktiebolag
Tufariello T. M.
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