Self-Replenishing Metalworking Fluid System
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Solution Overview
Problem
Conventional metalworking fluids have limited lifespan, are hazardous to workers, and require costly downtime for disposal and booster additions, leading to inefficiencies and environmental concerns.
Innovation Solution
A semi-synthetic water-based metalworking fluid comprising severely hydrotreated naphthenic oil, monoethanolamine, monoisopropanolamine, polyoxyethylene alkyl ether phosphate, tall oil fatty acid, and calcium acetate, which is replenished based on sampling to maintain optimal properties without the need for boosters, ensuring extended fluid life and environmental friendliness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If conventional metalworking fluids are used, then initial metalworking properties are achieved, but fluid life is limited and requires frequent disposal and replacement
Solution Approach 1:
The metalworking fluid system performs self-replenishment through automatic detection of fluid concentration and proportional addition of concentrate. The system monitors itself and automatically maintains optimal fluid properties without external intervention, eliminating the need for manual disposal and replacement operations.
Solution Approach 2:
The system incorporates continuous monitoring of fluid concentration and properties, using this feedback to automatically control the replenishment rate. Sensors detect fluid degradation and trigger proportional addition of concentrate, creating a closed-loop control system that maintains optimal performance throughout extended operational periods.
2Productivity
If conventional metalworking fluids are used, then metalworking operations can be conducted, but hazardous effects on workers and environment occur
Solution Approach 1:
The system fundamentally changes the chemical composition parameters of the metalworking fluid by using biodegradable base stocks and environmentally benign additives. This parameter change maintains all necessary metalworking properties (lubrication, cooling, chip evacuation) while eliminating toxic effects on workers and the environment.
Solution Approach 2:
The invention converts the previously harmful conventional fluids into beneficial environmentally friendly formulations. The biodegradable components and non-toxic additives transform the fluid from a hazardous waste product into an environmentally safe substance that maintains full metalworking effectiveness.
3Reliability
If booster additions are made to restore fluid properties, then fluid performance is maintained, but operational downtime and costs increase
Solution Approach 1:
The system eliminates intermittent booster additions by implementing continuous automatic replenishment. The fluid concentrate is added proportionally and continuously based on real-time concentration monitoring, maintaining uninterrupted fluid performance without requiring operational shutdowns or manual intervention.
Solution Approach 2:
The system automatically detects fluid concentration levels and replenishes itself without external intervention. The automated control system manages the entire replenishment process, eliminating the need for operators to perform manual booster additions and associated downtime.
4Reliability
If conventional metalworking fluids are used, then initial lubricity and protection properties are achieved, but properties degrade over time requiring replacement
Solution Approach 1:
The system continuously monitors fluid properties including lubricity and corrosion protection effectiveness. This feedback enables real-time adjustment of concentrate addition rates to maintain optimal performance levels throughout the extended fluid lifespan, preventing property degradation.
Solution Approach 2:
The metalworking fluid system automatically maintains its own performance properties through self-replenishment. The system detects when concentrate levels drop and automatically adds the required amount, ensuring consistent lubricity and corrosion protection without manual intervention or property degradation.
Data Source
AI summary
An aqueous based metalworking fluid that is environmentally friendly and process for metalworking with the fluid. The metalworking fluid is sampled at periodic intervals and replenished to predetermined operating specifications with the aqueous based metalworking fluid without the need for individual boosters.