Lightweight Structural Panel Assembly for Continuous Bonding
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Solution Overview
Problem
The existing methods for manufacturing lightweight panels are inefficient due to precision work required for inserting and cutting bars to size, slow hardening processes of glue, and issues with unevenness caused by evaporation of water-based glues, making mass production challenging.
Innovation Solution
The method involves applying line pressure between the cover layer and insert, using glues that set physically or with aqueous dispersion, and manufacturing endless panels with longitudinal bars that can be cut later, allowing for continuous production and reduced glue usage, eliminating the need for expensive presses and subsequent calendering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If water-based glues are used for manufacturing lightweight panels, then the panels can be manufactured with standard materials, but moisture evaporation causes unevenness and deformation
Solution Approach 1:
The patent changes the fundamental parameter of the adhesive from water-based to solvent-free (melting point between 80-120°C). This eliminates moisture evaporation issues while maintaining ease of manufacture through simple heating and pressing processes.
Solution Approach 2:
The patent replaces the chemical drying process of water-based glues with a thermal-mechanical bonding process. The adhesive is heated to melting point, applied under pressure, and bonds through heat and pressure rather than evaporation, eliminating surface unevenness.
2Reliability
If traditional batch manufacturing methods are used with slow hardening glue, then quality can be monitored, but production time and costs increase
Solution Approach 1:
The patent implements continuous manufacturing where panels move through the production line without interruption. The adhesive bonds immediately under heat and pressure, eliminating waiting time for hardening, while quality control is maintained through consistent process parameters.
Solution Approach 2:
The patent rushes through the bonding process by applying heat and pressure simultaneously, achieving immediate bond strength. The entire hardening process occurs during the brief moment of pressing rather than requiring hours of waiting.
3Strength
If precision cutting and fitting of bars is performed, then structural integrity is improved, but manufacturing complexity and time increase
Solution Approach 1:
The patent performs preliminary action by pre-assembling the bars and honeycomb structure into complete panels before final assembly. Bars are positioned and secured during the continuous pressing process, eliminating the need for precise post-manufacturing cutting and fitting.
Solution Approach 2:
The patent merges multiple manufacturing steps into one continuous process: bar assembly, honeycomb insertion, adhesive application, pressing, and bonding all occur simultaneously in a single production line, reducing complexity while maintaining structural integrity.
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 enables continuous manufacturing, reduces material waste, and ensures even surfaces without the need for extensive finishing, allowing for more efficient production and cost-effective lightweight panels with improved stability and appearance.
Implementation Method 1
heating to melting point and pressing
Implementation Method 2
applying line pressure between cover layer and insert, if necessary the bars
Data Source
AI summary
The invention relates to an improved lightweight panel, novel uses thereof, as well as to an improved method for manufacturing the same.