Fluoroplastic Articles With Stretchable Rhombic Metal Meshwork
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Solution Overview
Problem
Fluoroplastic articles with metal web liners face issues due to rigid grids, leading to poor quality, distorted structures, and high defect rates during manufacturing and use, as the metal web cannot be stretched or compressed, affecting the abutment with fluoroplastic layers and resulting in low density and potential cracking.
Innovation Solution
A fluoroplastic article with a metal meshwork having variable rhombic grids that can be stretched and compressed, allowing it to be uniformly arranged between inner and outer fluoroplastic layers, enabling better abutment and performance by maintaining consistent diameter and length changes with temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If metal web with fixed rigid square grids is used, then the structure provides stability, but the metal web cannot be stretched and compressed, causing poor abutment with fluoroplastic layers, distortion during winding, and low density articles with holes and cracks
Solution Approach 1:
The patent transforms the static rigid square grid structure into a dynamic rhombic grid structure that can adapt its shape. The metal meshwork with rhombic grids can be stretched and compressed, allowing it to dynamically adjust during the winding and sintering processes to maintain close abutment with fluoroplastic layers, eliminating distortion and improving manufacturing quality.
Solution Approach 2:
The patent changes the geometric parameters of the grid structure from fixed square shapes to variable rhombic shapes. This parameter change enables the grid to deform and adapt during manufacturing, allowing the metal meshwork to closely follow the contours of fluoroplastic layers while maintaining structural integrity, thus improving both stability and manufacturing precision.
2Ease of manufacture
If metal web with fixed grids is used, then the structure is simple to manufacture, but it cannot be made into meshwork and placed in between fluoroplastic layers, resulting in distorted structures and high defect rates
Solution Approach 1:
The dynamic rhombic grid structure allows the metal meshwork to be flexible and adaptable during the winding process. It can be easily placed between fluoroplastic layers without causing distortion, as the rhombic grids can adjust to the winding tensions and maintain uniform distribution, significantly improving article reliability.
Solution Approach 2:
The metal meshwork with rhombic grids is prepared in advance with the capability to stretch and compress. This preliminary preparation enables it to adapt to the winding process requirements, allowing it to be seamlessly integrated between fluoroplastic layers before sintering, reducing defects and improving reliability.
3Length of stationary object
If metal web with fixed grids is used, then the structure maintains constant dimensions, but it cannot closely abut fluoroplastic layers during high-temperature sintering, causing insufficient inner pressure and poor density
Solution Approach 1:
The rhombic grid structure provides dimensional adaptability during high-temperature sintering. As the fluoroplastic layers expand and contract with temperature changes, the metal meshwork can dynamically adjust its dimensions, maintaining close abutment and applying sufficient inner pressure to ensure high density and eliminate holes in the final product.
Solution Approach 2:
The patent utilizes the variable geometric parameters of rhombic grids to accommodate thermal expansion and contraction. The rhombic shape allows for parameter changes in grid cell size and orientation, enabling the metal meshwork to maintain intimate contact with fluoroplastic layers throughout the sintering process, ensuring optimal density.
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 improves article quality and yield by ensuring uniform arrangement and close contact with fluoroplastic layers, preventing deformation and defects, resulting in high-density, crack-free, and smooth-surfaced products with enhanced thermal performance.
Implementation Method 1
the meshwork will elongate longitudinally and the diameter will expand in the transverse direction with the rise of temperature. However, since the product of the diameter and the length of the meshwork is a constant, the tendency to elongate longitudinally and the tendency to expand transversely are restricted with each other
Implementation Method 2
When the article is sintered at a high temperature, since the F4 belt, metal web and glass belt cannot be closely pressed against each other, the inner pressure due to the expansion is insufficient
Data Source
AI summary
The present invention relates to a method for forming fluoroplastic articles including inner and outer fluoroplastic layers and a metal meshwork, the metal meshwork being arranged between the inner and outer fluoroplastic layers, characterized by the meshwork being stretchable and compressible in an axial direction.