Water-Soluble Machine Tool Fluids for Mixed Hydraulic Reuse
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Solution Overview
Problem
Existing machining tool systems face issues with the mixing of hydraulic fluids containing oil-soluble materials with processing fluids, leading to bacterial growth, skin irritation, stickiness on processed articles, and the inability to reuse fluids, resulting in waste and increased costs.
Innovation Solution
A machining tool system that uses a water-soluble lubricating fluid for both hydraulic and processing fluids, eliminating oil-soluble materials, and incorporating a collection and circulation system to reuse the fluids without separating oil and water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydraulic fluid containing oil-soluble material is used, then lubricating performance is improved, but bacterial growth and corruption occur in the processing fluid
Solution Approach 1:
The patent changes the chemical composition parameter of the hydraulic fluid from oil-soluble to water-soluble base oil. This parameter change eliminates the nutrient source for bacteria while maintaining lubricating performance through careful formulation of the water-soluble lubricant with appropriate additives and concentration control.
2Reliability
If hydraulic fluid containing oil-soluble material is mixed with processing fluid, then lubricity is maintained, but stickiness on processed articles and skin irritation occur
Solution Approach 1:
The patent changes the solubility parameter of the hydraulic fluid from oil-soluble to water-soluble. This eliminates the stickiness problem because water-soluble fluids do not leave oily residues on processed articles, and reduces skin irritation by removing chlorinated and sulfurized additives while maintaining lubricity through alternative lubricating agents.
3Loss of substance
If two-fluid separation device is introduced to prevent mixing, then fluid reuse is enabled, but device complexity and cost increase
Solution Approach 1:
The patent merges the hydraulic fluid and processing fluid into a single water-soluble fluid system, eliminating the need for separation devices. Both fluids use the same water-soluble base oil formulation, allowing them to be mixed without adverse effects and enabling simple collection and reuse without complex oil-water separation infrastructure.
4Object-affected harmful factors
If water-soluble processing fluid is used, then environmental load is reduced, but fluid performance degrades when mixed with hydraulic fluid
Solution Approach 1:
The patent creates a universal water-soluble lubricant formulation that serves dual functions as both hydraulic fluid and processing fluid. This multi-functional formulation maintains consistent performance characteristics when mixed, preventing degradation while preserving the environmental benefits of water-solubility through careful additive selection and concentration control.
Data Source
AI summary
Provided is a machining tool system configured to be utilized in an environment in which a hydraulic fluid and a processing fluid are mixed, in which a water-soluble material that does not contain an oil-soluble materials derived from a mineral is used for the hydraulic fluid and the processing fluid (collectively, the “fluids”). The machining tool system includes: collecting means for collecting the fluids after a lubricating effect ends while being mixed, the collecting means being disposed downstream of a lubricating flow path of the machining tool; a discharging container communicating with the collecting means and storing the fluids; and circulating means for suctioning the fluids inside the discharging container without separation into oil and water from an inlet port in the discharging container at a position separated from a bottom portion and returning the fluids to a supply flow path of the processing fluid and/or the hydraulic fluid.