Brake Lining Carrier Induction Heating for Uniform Adhesive Drying
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Solution Overview
Problem
Conventional methods for producing brake linings face challenges such as skin formation, uneven evaporation, and prolonged drying times due to temperature fluctuations and material variations, which affect the bonding between the lining carrier and friction lining, and require compliance with stringent safety and ventilation regulations.
Innovation Solution
The method involves inductive heating of the lining carrier before or after adhesive application, which prevents skin formation and ensures uniform evaporation by heating the substrate directly, reducing drying time and energy consumption, and is suitable for both water-based and solvent-based adhesives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional drying methods (heated air or IR radiation) are used, then the adhesive layer can be dried, but skin formation occurs on the surface preventing uniform evaporation and extending drying time
Solution Approach 1:
Instead of heating from the outside (air or IR radiation), the invention heats the lining carrier from the inside using induction heating. This reverses the conventional approach, allowing heat to conduct through the carrier to the adhesive layer, preventing skin formation and enabling uniform evaporation throughout the adhesive layer.
Solution Approach 2:
The invention replaces conventional thermal drying systems (heated air circulation or IR radiation) with an induction heating system that uses electromagnetic fields to directly heat the lining carrier. This substitution eliminates the harmful external heating effect that causes skin formation while maintaining effective drying.
2Adaptability or versatility
If the lining carrier weight and material vary, then different heat conductivity affects drying behavior, but conventional drying cannot adapt to these variations efficiently
Solution Approach 1:
The invention uses induction heating which allows precise control and rapid adjustment of heating parameters (power, frequency, duration). This enables the drying process to be adapted to different lining carrier weights and materials by simply adjusting the induction heating parameters, rather than relying on fixed conventional drying conditions.
Solution Approach 2:
Induction heating provides a more responsive and controllable heating mechanism compared to conventional air or IR drying. The electromagnetic field can be precisely controlled to match the specific thermal requirements of different lining carriers, enabling faster and more efficient drying across varying materials and weights.
3Reliability
If conventional drying with heated air is used, then drying can be achieved, but compliance with explosion-protection regulations and ventilation requirements is required
Solution Approach 1:
The invention replaces air-based heating (which requires explosion protection) with induction heating that uses electromagnetic fields. This creates an inherently safer environment by eliminating the need for heated air circulation, thereby removing the requirement for complex ventilation systems and explosion-protection measures while maintaining effective drying.
Solution Approach 2:
The invention substitutes the mechanical air circulation and heating system with an electromagnetic induction heating system. This substitution eliminates the fire and explosion hazards associated with heated air, thereby simplifying safety requirements and removing the need for complex ventilation and explosion-protection infrastructure.
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
This approach significantly reduces drying time by at least 50%, enhances process safety, and eliminates the need for recovery procedures, while maintaining consistent drying temperatures and reducing environmental impact.
Implementation Method 1
the inductive heating of the lining carrier
Implementation Method 2
the inductive heating of the lining carrier
Implementation Method 3
the evaporation of aqueous or organic solvents out of the adhesive and its transition from the liquid into the solid state
Implementation Method 4
heating the substrate directly
Data Source
AI summary
In a method for coating a brake lining carrier plate with an adhesive composition that is to be dried, the lining carrier plate is inductively heated to the desired drying temperature before the adhesive is applied.