Abrasive process for modifying corners, edges, and surfaces...

Details Abrasive process for modifying corners, edges, and surfaces... Abrasive process for modifying corners, edges, and surfaces...

2007-11-07

2011-11-15

Xu, Ling (Department: 1784)

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C428S220000, C428S304400, C428S319100, C428S319300, C428S457000, C428S689000, C361S528000

Reexamination Certificate

active

08057883

ABSTRACT:
Porous sintered bodies for capacitors formed from valve metals are treated by electrolysis to form a dielectric layer and coated with cathode layers. When standard parallelepiped shapes are used as they were passed, cathode coverage at the sharp corners and edges is non-uniform and failures occur at those locations. Treating pressed anode bodies with an abrasive process alters the sharpness of corners and edges, creating rounded transitions between primary surfaces and remove surface imperfections resultant from the pressing process both of which enhance cathode layer uniformity.

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