SURFACE COATING METHOD ON INNWALL OF HOLLOW PORTION BY ELECTROPLATING MEANS AND ITS DEVICE AND SURFACE FILM PRODUCED BY SAID METHOD

Title:

SURFACE COATING METHOD ON INNWALL OF HOLLOW PORTION BY ELECTROPLATING MEANS AND ITS DEVICE AND SURFACE FILM PRODUCED BY SAID METHOD

Document Type and Number:

Japanese Patent JPS53102839

Kind Code:

A

Abstract:

A method and apparatus for providing a surface coating of a metal or metal alloy on the wall of an elongate cavity in a workpiece by means of electrolytic plating, the workpiece being used as cathode. An electrolyte containing ions of the metal intended for the coating is brought into movement inside the cavity with the aid of a conveyor, which consists of a resilient and electrically insulating material such as a perforated, net-like or fibrous strip, and which is wound helically round the anode. The strip is fringed or slit on the edge facing towards the cavity wall to form outstanding resilient fingers which are in contact with the cavity wall.

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Inventors:

KAIIRAGUNARU ROKUBISUTO
RAIFUUAAKE BENSUTETSUDO

Application Number:

JP1204678A

Publication Date:

September 07, 1978

Filing Date:

February 07, 1978

Export Citation:

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Assignee:

WAVE ENERGY DEV

International Classes:

C25D5/04; C25D5/08; C25D5/22; C25D7/04; (IPC1-7): C25D7/04

Previous Patent: JPS53102838

Next Patent: JPS53102840