Mineral Panel With Aluminum Layer For Veneer Adhesion
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Solution Overview
Problem
Existing non-combustible building material panels, particularly those with high perlite content, face challenges in surface smoothness and workability due to perlite particle release during processing, leading to irregular surfaces and difficulties in applying a veneer layer, while panels with inorganic binders like gypsum are heavy and moisture-sensitive.
Innovation Solution
A mineral building material panel with a metal layer on at least one surface, preferably aluminum or its alloys, providing a smooth surface for veneer attachment and improved fire protection, combined with a silicate-based base plate and optional gypsum addition for fire resistance, and using water glass adhesive for secure bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of stationary object
If perlite particles are added to reduce specific weight, then insulation performance is improved, but surface smoothness deteriorates due to particle release during processing
Solution Approach 1:
A metal intermediate layer is introduced between the perlite-containing base panel and the veneer layer. This metal layer acts as a mediator that receives the irregular base panel surface and provides a smooth working surface for veneer application, preventing direct contact between the veneer and perlite particles while maintaining the lightweight insulation properties of the perlite base panel.
2Reliability
If inorganic binders like gypsum are used to improve fire resistance, then fire protection is enhanced, but specific weight increases and moisture tolerance decreases
Solution Approach 1:
Fire protection is applied locally at the interface between the base panel and veneer layer through the metal layer, rather than requiring the entire base panel to be made of heavy fire-resistant materials like gypsum. The metal layer provides fire resistance at the critical bonding interface while the bulk of the panel can use lighter perlite-based materials.
3Manufacturing precision
If the base panel surface is ground to improve smoothness, then surface quality is improved, but perlite particles are released causing irregular surfaces and workability difficulties
Solution Approach 1:
Instead of grinding the base panel surface to achieve smoothness, the metal layer is applied preliminarily to create a smooth working surface. This preliminary action of applying the metal layer eliminates the need for subsequent grinding operations that would release perlite particles and create workability issues.
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 metal layer ensures a smooth surface for veneer application, reduces panel weight, and enhances fire protection by preventing ignition and generating a cooling effect, while maintaining non-combustibility and moisture tolerance.
Implementation Method 1
the aluminum melt can partially wet the top layer in the event of a fire, which prevents the ingress of oxygen. This can prevent or at least delay ignition of the top layer.
Implementation Method 2
a cooling effect is generated via the 'solid - liquid' phase transition of the aluminum, which improves the fire protection properties of the building material panel.
Data Source
Figure 1
AI summary
The building material plate (1) has mineralized non-inflammable base plate (2) having two major faces (3,4) opposite to each other. One of the major faces is provided in sections with a metal layer (5,6). The metal layer contains aluminum or aluminum alloy. The base plate has a flint-acid material, particularly silicate. The laminated material plate is selected from phenolic resin composite slabs.