Electrical discharge machine having concentration detection function for rust inhibitor containing organic compound
US10618126B2 · kind B2 · utility
0Cited by
7References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 26, 2016 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Oct 15, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S901/44
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.