Flat Seal Sieve Region Sealing with Compressed Filling Material
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Solution Overview
Problem
Existing methods for producing flat seals with sieve regions fail to provide reliable and durable cross-sectional impermeability due to remaining gaps at thread crossing sites.
Innovation Solution
A method where a functional material layer with a sieve region is enhanced by creating a sealing region with through openings closed by a softening and compressing filling material, ensuring cross-sectional impermeability and stabilizing the fabric structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If threads are deformed at crossing sites to seal round sieve regions, then sealing possibility is improved, but reliable durable cross-sectional impermeability is not achieved due to remaining gaps
Solution Approach 1:
A filling material is introduced as an intermediary substance between the woven fabric threads to seal the gaps at crossing sites. This filling material fills the spaces between threads and closes through-openings, achieving reliable cross-sectional impermeability that thread deformation alone cannot provide.
Solution Approach 2:
The filling material undergoes parameter changes through softening and compressing processes. The material is softened to a moldable state, pressed into the fabric to fill gaps, then hardened to provide durable sealing. This phase transformation enables effective gap closure while maintaining fabric flexibility.
2Manufacturing precision
If filling material is used to close through openings, then cross-sectional impermeability is achieved, but fabric structure stability may be affected
Solution Approach 1:
The filling material is applied locally only in sealing regions where cross-sectional impermeability is required, rather than throughout the entire fabric. This localized application maintains the woven fabric's flexibility and original structure in non-sealing areas while providing effective sealing where needed.
Solution Approach 2:
The sealing structure becomes a composite of woven fabric and filling material. The fabric provides structural integrity and flexibility, while the filling material provides sealing functionality. This composite structure combines the advantages of both materials to achieve both stability and impermeability.
3Measurement precision
If sealing region is created by closing through openings, then positional accuracy is improved, but additional processing steps are required
Solution Approach 1:
The filling material is pre-positioned or pre-applied to the fabric before final sealing operations. This preliminary action defines the sealing region boundaries and ensures accurate positioning of sealing areas relative to sieve regions, improving positional accuracy while streamlining the overall process.
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 solution achieves reliable and durable cross-sectional impermeability, stabilizes the woven or plaited fabric, and improves the positional accuracy and long-term positioning behavior of the sieve and sealing regions.
Implementation Method 1
the through openings of the woven or plaited fabric are closed by the softening and compressing of a filling material filling the through openings
Data Source
AI summary
In order to improve a method for producing a functional element, in particular, for flat seals, wherein a functional material layer is provided with a sieve region in which through openings for the passage of a fluid lie exposed between threads of a woven or plaited fabric such that a best possible sealing round the sieve regions is enabled, it is proposed that the functional material layer is provided with a sealing region which is formed to be cross-sectionally impermeable, in which the through openings of the woven or plaited fabric are closed by the softening and compressing of a filling material filling the through openings.