Method of producing a weapon barrel having a wear-resistant inne

Details Method of producing a weapon barrel having a wear-resistant inne Method of producing a weapon barrel having a wear-resistant inne

1994-10-17

1995-12-19

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Coating selected area

205131, 205135, 205151, 205206, 205210, 205217, 205218, 205219, C25D 502, C25D 504, C25D 534, C25D 704

Patent

active

054765811

ABSTRACT:
A method of producing a weapon barrel (1) having a wear-resistant inner coating (10) applied by an electrolytic method. To enable the application of a relatively thick protective layer to the inner wall or surface of a large-caliber weapon barrel (1), in particular, in the regions of thermally high stress and in a simple manner, a weapon barrel (1) prefabricated true to caliber is provided, a recess (7) is formed in the region of the chamber (2) and of the adjoining caliber region (3) to be coated with the protective layer (10) by electrochemical stripping (electrolytic polishing), and the recess (7) is subsequently refilled electrolytically with the protective layer (10). The same center electrode (4, 12) preferably is used for the electrolytic polishing process and for the electrolytic process for applying (plating) the protective coating or layer (10).

REFERENCES:
patent: 2395044 (1946-02-01), Gorton
patent: 2687591 (1954-08-01), Lamb et al.
patent: 4711705 (1987-12-01), Martyak et al.
Moretti, Advantages of Thick Hard Chromium Plating Applied to [Small-Bore] Firearms, Gawanotecnica, 21(10), pp. 209-212 (1970) no month.

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