Structured Assembly Lubricant With Phase-Change Tribological Protection
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Solution Overview
Problem
Existing lubricants fail to provide long-term lubricity and compatibility with various assemblies, including combustion engines, transmission systems, and electric vehicle components, while maintaining tribological protection and electrical safety.
Innovation Solution
A two-phase structured lubricant composed of a liquid phase and a solid phase, where the solid phase recrystallizes or solidifies around the liquid phase, providing a viscous structure for assembly and tribological protection, with a distinct melting point and minimal impact on electrical conductivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a standard lubricant is used to provide lubrication during assembly, then friction between parts is reduced, but the lubricity is lost after certain time or the lubricant is removed
Solution Approach 1:
The lubricant utilizes phase transitions of wax components (solid at room temperature, liquid at elevated temperatures) to provide temporary structural support during assembly that automatically disappears during operation. The wax melts at operating temperatures, transforming from a structure-forming solid to a lubricating liquid, thereby extending the duration of lubricity while maintaining reliability through the liquid lubricating phase.
Solution Approach 2:
The invention creates a composite lubricant system combining liquid lubricating components with solid wax structural components. This composite structure provides both immediate lubrication and extended duration lubricity, as the liquid phase provides initial lubrication while the wax phase maintains structure over time, resolving the contradiction between duration and reliability.
2Manufacturing precision
If a viscous structured lubricant is applied to hold parts in place during assembly, then positioning accuracy is improved, but the lubricant must be displaced by standard lubricant during operation
Solution Approach 1:
The wax-based structured lubricant melts at operating temperatures, automatically transitioning from a viscous solid that provides positioning accuracy to a liquid that can be easily displaced by standard lubricant. This phase transition resolves the contradiction by making the lubricant structure temporary and temperature-dependent.
Solution Approach 2:
The invention changes the temperature parameter of the lubricant system, utilizing the melting point of wax components to transform the lubricant from a structure-providing state during assembly to a displacable state during operation. This parameter change enables both positioning accuracy and ease of lubricant displacement.
3Stability of the object's composition
If the structural component recrystallizes or solidifies around the liquid component, then a viscous structure is formed for assembly, but the lubricant exhibits distinct melting point behavior
Solution Approach 1:
The lubricant is designed to undergo controlled phase transitions where the wax structural component recrystallizes at assembly temperatures to provide stability, then melts at operating temperatures to allow lubricant displacement. This deliberate use of phase transitions resolves the contradiction between structural stability and temperature sensitivity.
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
The lubricant offers enhanced tribological protection during assembly and initial startup, maintaining electrical safety and compatibility with standard lubricants, while exhibiting extreme shear thinning behavior and minimal performance impact.
Implementation Method 1
The structural component recrystallizes or solidifies around the liquid component
Implementation Method 2
The structural component recrystallizes or solidifies around the liquid component
Implementation Method 3
exhibiting extreme shear thinning behavior
Data Source
AI summary
A two-phase structured lubricant includes a liquid component about 5% by weight (wt. %) to 95 wt. %, and a structural component about 5 wt. % to 95 wt. %. The structural component recrystallizes or solidifies around the liquid component.