Method of monitoring removal of metal treatment solutions

Details Method of monitoring removal of metal treatment solutions Method of monitoring removal of metal treatment solutions

1992-01-22

1993-07-06

Fields, Carolyn E.

Radiant energy

Radiation tracer methods

2504591, 2504611, 134113, G01N 2164

Patent

active

052256758

ABSTRACT:
The invention provides a method of improving cleaning operations for metals. A fluorescent dye is introduced into metal treatment solution and the surface of a metal product is treated with the treatment solution. The metal product with the treatment solution on its surface is worked to deform the metal product. The treatment solution is removed from the surface of the metal product to clean the metal product. The cleaned metal product is illuminated with excitation energy capable of stimulating fluorescence in the fluorescent dye. Fluorescence of the fluorescent dye is optically monitored to determine effectiveness of the removing step.

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patent: 4327120 (1982-04-01), Siemers et al.
patent: 4876206 (1989-11-01), Sayer
patent: 4956558 (1990-09-01), Batishko et al.
patent: 5001353 (1991-03-01), Odake et al.

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