EDM Rust Inhibitor Concentration Detection via Color Reagent
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Solution Overview
Problem
Existing electrical discharge machines lack an effective method to detect and maintain the optimal concentration of organic rust inhibitors in the working fluid, leading to inadequate corrosion prevention and potential material degradation.
Innovation Solution
An electrical discharge machine equipped with a characteristic value detection system that uses a color reagent to form a metal complex with the organic rust inhibitor, allowing for concentration detection through optical sensors, and an automated system to adjust the inhibitor concentration within a predetermined range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If highspeed chromatography with UV absorption intensity is used to detect organic rust inhibitor concentration, then measurement accuracy is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent introduces a color reagent as an intermediary substance that reacts with the organic rust inhibitor to form a colored complex. This mediator converts the invisible concentration measurement problem into a visible color intensity measurement that can be detected by simple optical sensors, eliminating the need for complex chromatography equipment.
Solution Approach 2:
The patent utilizes color changes as the basis for concentration detection. The color reagent forms a colored complex with the organic rust inhibitor, and the intensity of this color change is directly proportional to the inhibitor concentration. This allows measurement using simple optical detection methods instead of complex analytical instrumentation.
2Reliability
If rust inhibitor concentration is not monitored, then device complexity is reduced, but corrosion protection reliability deteriorates
Solution Approach 1:
The color reagent serves as a mediator that enables reliable corrosion protection monitoring through simple means. By converting the chemical concentration information into optical signal information, the system achieves reliable rust inhibitor level detection without requiring complex analytical equipment.
Solution Approach 2:
The detection system uses the working fluid itself and a simple color reagent to perform the monitoring function. The color change occurs automatically when the reagent contacts the working fluid, providing self-indicating concentration information that eliminates the need for complex automated sampling and analysis systems.
3Manufacturing precision
If regular rust inhibitor addition is performed without concentration detection, then operational simplicity is maintained, but manufacturing precision and product quality deteriorate due to inadequate corrosion protection
Solution Approach 1:
The color change method provides visual or optical indication of rust inhibitor concentration, enabling operators to monitor protection levels without complex instrumentation. This maintains operational simplicity while ensuring adequate corrosion protection for precision machining.
Solution Approach 2:
The color reagent provides immediate feedback on the rust inhibitor concentration status of the working fluid. This feedback mechanism allows operators to adjust inhibitor addition based on actual conditions rather than following fixed schedules, ensuring optimal corrosion protection for precision machining operations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures the optimal concentration of the rust inhibitor is maintained, preventing corrosion and extending the lifespan of machined products by automatically adjusting the inhibitor levels based on detected changes.
Implementation Method 1
a characteristic value detection means for detecting a characteristic value of the working fluid attributable to a metal complex produced through the reaction of an organic compound contained in the rust inhibitor with a transition metal ion contained in a color reagent
Data Source
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AI summary
An electrical discharge machine having a concentration detection function for a rust inhibitor containing an organic compound uses coloring of a metal complex produced through the eraction of the rust inhibitor (active ingredient: organic compound) with a color reagent (transition metal ion) 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. If the concentration of the rust inhibitor is lower than a certain value, the color of the working fluid lightens, the change of the color is detected by the detector, and a command to add the rust inhibitor is issued to a controller. If the concentration of the rust inhibitor is higher than the certain value, in contrast, the color of the working fluid deepens, the change of the color is detected by the detector, and a command to add the working fluid is issued to the controller.