Electrical discharge machine having concentration detection function for rust inhibitor containing organic compound
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United States of America Patent
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Apr 14, 2020
Grant Date -
Mar 2, 2017
app pub date -
Aug 26, 2016
filing date -
Aug 27, 2015
priority date (Note) -
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Abstract
An electrical discharge machine is disclosed having a concentration detection function for a rust inhibitor containing an organic compound uses coloring of a metal complex produced through the reaction of the rust inhibitor with a color reagent to enable a detector to detect the change of characteristics involved in the change of the color of the metal complex. A predetermined amount of working fluid is sampled in a sampling cell at regular time intervals, a predetermined amount of color reagent is added to the working fluid, and the change of the color of the working fluid is detected by the detector.
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