Composite Abrasive Pad Structure for Wear-Resistant Floor Treatment
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Solution Overview
Problem
Surface treating devices with abrasive particles, such as those used for grinding or polishing, face premature wear and disintegration due to high frictional forces and temperature increases, leading to loss of integrity and reduced lifespan, especially when treating large areas like hotel lobbies or shopping centers.
Innovation Solution
A surface treating device is designed with an open lofty non-woven layer adhered to a woven layer, where abrasive segments are attached to the woven layer, enhancing resistance to in-plane deformations and heat exposure, using high-strength fibers like Kevlar and heat-resistant materials to maintain structural integrity and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If abrasive segments are directly adhered to the non-woven layer, then the device can adapt to uneven surfaces, but the resistance against in-plane deformations is low leading to high risks of tearing and premature disintegration
Solution Approach 1:
The patent applies composite materials by combining a non-woven layer with a woven reinforcement layer. The non-woven layer provides adaptability to uneven surfaces, while the woven layer (made of high-strength fibers like Kevlar) provides resistance against in-plane deformations and tearing. This composite structure resolves the contradiction by integrating the beneficial properties of both materials.
Solution Approach 2:
The patent applies local quality by assigning different functional properties to different layers: the non-woven layer is optimized for surface adaptation and compression deformations, while the woven reinforcement layer is optimized for in-plane strength and tear resistance. Each layer performs its specific function where it is most effective.
2Ease of operation
If the non-woven layer is used as the sole support for abrasive segments, then the device maintains flexibility and compressibility, but the integrity is lost prematurely under heavy loadings and frictional forces
Solution Approach 1:
The patent uses a composite structure where the non-woven layer maintains flexibility and compressibility, while the woven reinforcement layer provides structural integrity and resistance to tearing under heavy loadings. The combination allows the device to operate reliably without losing integrity.
Solution Approach 2:
The woven reinforcement layer acts as a preventive measure against tearing and disintegration before they occur. By incorporating this strong layer beforehand, the device is pre-protected against the harmful effects of frictional forces and heavy loadings that would otherwise cause premature failure.
3Productivity
If the surface treating device is subjected to prolonged frictional forces and temperature increases, then the treatment process can be maintained, but the device wears down rapidly and abrasive segments break away
Solution Approach 1:
The patent applies composite materials with the woven reinforcement layer providing enhanced durability and resistance to wear under prolonged frictional forces and high temperatures. This allows the device to maintain both continuous treatment capability and extended lifespan.
Solution Approach 2:
The patent converts the harmful effect of frictional heat into a benefit by selecting heat-resistant materials for the woven reinforcement layer. These materials not only withstand the thermal stress but also strengthen the bond between abrasive segments and the substrate, turning the thermal environment into a condition that maintains device integrity.
4Reliability
If high-strength woven material is used to resist frictional forces, then the integrity is maintained longer, but the adaptability to uneven surfaces may be reduced
Solution Approach 1:
The patent resolves this contradiction by combining the woven reinforcement layer (for integrity) with the non-woven layer (for adaptability). The non-woven layer's flexible, entangled fiber structure allows the device to conform to uneven surfaces while the woven layer provides the necessary strength.
Solution Approach 2:
The patent applies local quality by allowing different layers to have different properties: the woven layer provides structural strength where needed, while the non-woven layer provides surface adaptation where contact with the treated surface occurs.
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 solution significantly extends the lifespan of the surface treating device by providing high resistance to frictional forces and heat, allowing it to maintain integrity under heavy loadings and temperature fluctuations, while still adapting to uneven surfaces and maintaining effective treatment performance.
Implementation Method 1
the frictional forces which are exerted upon the abrasive segments, resulting from the movement of these segments over the surface to be treated
Implementation Method 2
the woven layer generally has a high bending flexibility
Implementation Method 3
compression deformations of the non-woven layer are still possible
Implementation Method 4
This compressible material may take the form of an open lofty non-woven web of fibers
Implementation Method 5
During the surface treating process, the floor treatment device is subjected to frictional forces which may generate temperature increases
Implementation Method 6
said non-woven layer and woven layer having facing sides which are adhered to each other
Data Source
AI summary
A surface treating device includes an open lofty non-woven layer (1) and a woven layer (2). The non-woven layer and woven layer have facing sides (5, 6) which are adhered to each other. A plurality of abrasive segments (3) is adhered to the woven layer on the side (7) of the woven layer (2) which faces away from the non-woven layer (1). Thus, the abrasive segments are held in a stable manner so as to better withstand the frictional forces exerted thereon during service.