Mask stripper for electroform parting

Details Mask stripper for electroform parting Mask stripper for electroform parting

1993-04-26

1993-10-19

Tufariello, T. M.

Electrolysis: processes, compositions used therein, and methods

Electroforming or composition therefor

C25D 120

Patent

active

052542394

ABSTRACT:
A method for separating an electroformed article from a mandrel comprising: (a) masking a portion of a mandrel with a mask comprising an electrically nonconductive outer surface; (b) electroforming an article on the mandrel wherein the electroforming material is deposited on the mandrel surface but fails to adhere to the nonconductive outer surface of the mask, whereby the end of the electroformed article is adjacent to the mask; and (c) removing the article from the mandrel by either: (i) pushing the mask against the end of the article to effect movement of the article in the direction of separation; or (ii) removing the mandrel while keeping the mask stationary, whereby the end of the article pushes against the mask during withdrawal of the mandrel.

REFERENCES:
patent: 4158612 (1979-06-01), Luch et al.
patent: 4501646 (1985-02-01), Herbert
patent: 4549939 (1985-10-01), Kenworthy et al.
patent: 4711833 (1987-12-01), McAneney et al.
patent: 4781799 (1988-11-01), Herbert, Jr. et al.
patent: 4902386 (1990-02-01), Herbert et al.
patent: 5021109 (1991-06-01), Petropoulos et al.
patent: 5064509 (1991-11-01), Melnyk et al.
patent: 5160421 (1992-11-01), Melnyk et al.

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