Method and apparatus for electrolytic cleaning

Details Method and apparatus for electrolytic cleaning Method and apparatus for electrolytic cleaning

1994-12-27

1995-12-26

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204224M, 204271, C25F 100, C25F 700

Patent

active

054784506

ABSTRACT:
Precious metal-plated objects are cleaned by immersing them into a container filled with water. The electrical conductivity of the water is increased be adding an ion spender such as sodium carbonate therein. The positive terminal of a direct voltage source is connected to a metal plate such as aluminum plate immersed in the water bath. The precious metal-plated object to be cleaned is connected to the negative pole of the direct voltage source. The direct voltage is adjusted to between 1.5 and 9 V and the object is immersed for a few seconds. A kit for performing the method may be embodied as a battery-powered unit, or it may be provided with an a.c. adapter and an adjusting potentiometer allowing user-adjusted cleaning voltage.

REFERENCES:
patent: 3497445 (1970-02-01), Berglund et al.
patent: 3775279 (1973-11-01), Boley
patent: 4966673 (1990-10-01), Accattato

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