Mandrel for nickel rounds with a monolithic surface

Details Mandrel for nickel rounds with a monolithic surface Mandrel for nickel rounds with a monolithic surface

1979-07-23

1980-11-25

Prescott, Arthur C.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204 3, 204 10, 204112, C25C 108, C25C 702

Patent

active

042356962

ABSTRACT:
A polymeric electroforming mandrel having a metal base, eg. a layer of expanded sheet steel, and a polymeric layer surrounding such base, the layer having inserts of electroconductive polymer interspersed in a continuous area of non-conductive polymer and the layer comprising welded or otherwise hermetically joined units lying in the same plane.

REFERENCES:
patent: 3860509 (1975-01-01), Emmett, Jr.
patent: 4040915 (1977-08-01), Fisher
patent: 4082641 (1978-04-01), Parkinson et al.

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