Alveolar Panel Element Uniform Strength Extrusion
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Solution Overview
Problem
Existing alveolar panel elements lack uniform strength in both longitudinal and transverse directions, often requiring multiple layers that can separate and compromise the monolithic configuration, leading to instability and reduced rigidity.
Innovation Solution
A method involving two extruded thermoplastic layers with protruding elements, such as honeycomb or rhomboidal cavities, are shaped and coupled using contrast and finishing rollers to create a monolithic panel with equal modulus of elasticity in both directions, utilizing a heating unit for localized fusion of the elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional extrusion process is used to produce panel elements, then production efficiency and material adaptability are improved, but the panel element lacks uniform strength in both longitudinal and transverse directions
Solution Approach 1:
The panel element is segmented into a regular pattern of protruding elements and recesses that form alveolar cavities, creating a honeycomb-like structure. This segmentation provides uniform strength in both longitudinal and transverse directions while maintaining production efficiency through continuous extrusion processing.
Solution Approach 2:
The invention uses a single thermoplastic material that forms a composite structure with both solid walls and hollow alveolar cavities. This composite configuration achieves uniform bidirectional strength properties while maintaining the simplicity and efficiency of single-material extrusion processing.
2Strength
If multi-layered panel elements are used to achieve uniform strength, then rigidity is improved, but the complexity of assembly and risk of layer separation increases
Solution Approach 1:
The invention merges the functions of multiple layers into a single monolithic panel element. The alveolar structure provides the rigidity that would otherwise require multiple layers, while eliminating assembly complexity and the risk of layer separation by creating a unified one-piece structure through extrusion.
3Strength
If layered panel elements are assembled from separate components, then uniform strength is achieved, but the monolithic configuration and reliability are compromised
Solution Approach 1:
The panel is segmented into alveolar cavities within a single continuous structure, providing uniform strength through the geometric pattern rather than through assembly of separate components. This maintains both the monolithic configuration and uniform strength properties.
Solution Approach 2:
A single thermoplastic material forms a composite structure with solid and hollow regions, achieving uniform strength properties through the material's geometric configuration rather than through assembly of multiple components, thus maintaining monolithic reliability.
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 method produces a stable, monolithic alveolar panel element with consistent strength in both directions, adaptable thickness, and weight, ensuring reliability and safety while using common materials and processes, thus overcoming the limitations of multi-layered constructions.
Implementation Method 1
utilizing a heating unit for localized fusion of the elements
Implementation Method 2
localized fusion of the elements
Implementation Method 3
coupled by protruding elements, which are melted in localized positions fuse
Data Source
Figure 1
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Figure 5~6
AI summary
A method for producing an alveolar panel element particularly for coverings, packagings, supporting surfaces and the like, comprising the steps of extruding a first layer (3) and a second layer (4) of thermoplastic material, shaping the first and second layers so as to provide, on each layer, a sheet-like element (20) with elements (21) that protrude on at least one face, and coupling the protruding elements of each layer in order to obtain an alveolar panel element.