Composite Substrate for Decorative Element Mounting
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Solution Overview
Problem
Existing methods for mounting decorative elements on supports, such as watch or jewelry, are inadequate for materials that do not exhibit plastic deformation, like ceramics or sapphire, and face issues with bonding techniques that lack mechanical retention and can be affected by environmental factors, and amorphous metal methods that introduce thermal stresses and limited color options.
Innovation Solution
A method using a composite filling material with metallic powder and organic binder, applied as a paste to create a substrate that can be adapted to the support's color and material, allowing for mounting without mechanical stress and rapid cooling, and enabling deformation of attachment means for secure retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If crimping method is used to mount decorative elements, then mechanical retention and secure hold are achieved, but the method is confined to supports made of metals or ductile metal alloys that exhibit plastic deformation
Solution Approach 1:
The patent introduces an intermediate substrate made of amorphous metal that is deposited onto the support surface. This substrate serves as a mediator between the fragile support (ceramic, sapphire, etc.) and the decorative element, enabling crimping to be performed on the substrate rather than directly on the support. The amorphous metal substrate provides the necessary ductility for hook deformation while being compatible with fragile support materials.
Solution Approach 2:
The solution creates a composite structure consisting of three layers: the original support (fragile material like ceramic or sapphire), an intermediate amorphous metal substrate, and the decorative element. This composite construction combines the advantages of fragile support materials with the ductility of amorphous metal, enabling secure mechanical retention through crimping while maintaining compatibility with diverse support materials.
2Adaptability or versatility
If bonding operation is used to replace crimping, then mounting is possible on various materials, but mechanical retention is not ensured and long-term hold is difficult due to environmental exposure
Solution Approach 1:
The amorphous metal substrate acts as an intermediary that enables mechanical retention through crimping while being compatible with various support materials. Instead of relying on chemical bonding that degrades under environmental exposure, the substrate provides a mechanically retentive interface through deformed hooks that securely hold the decorative element.
3Adaptability or versatility
If amorphous metal is used for mounting decorative elements, then mounting on fragile materials becomes possible, but rapid cooling creates thermal shock leading to internal stresses, deformations, or cracks
Solution Approach 1:
The patent modifies the thermal processing parameters by using slow cooling instead of rapid cooling after depositing the amorphous metal layer. This parameter change avoids thermal shock and the associated internal stresses, deformations, or cracks that would otherwise occur in fragile support materials, while still achieving the desired amorphous metal substrate formation.
4Adaptability or versatility
If amorphous metal is used for decorative element mounting, then mounting on diverse materials is enabled, but the number of available alloys is limited and desired color matching cannot always be achieved
Solution Approach 1:
The patent applies local quality by depositing the amorphous metal substrate with specific compositional characteristics tailored to match the color and properties of the particular support material and decorative element. This allows optimization of the substrate's metallic composition at the local level to achieve desired color matching while maintaining the amorphous structure's compatibility with fragile materials.
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
Enables secure and durable mounting of decorative elements on hard and fragile materials without mechanical stress, offering flexibility in color matching and chemical affinity with the support, while avoiding thermal stresses and ensuring long-term retention.
Implementation Method 1
heating the composite filling material to a temperature above its melting point in order to melt it and make it liquid
Implementation Method 2
allowing the filler material to cool. The cooled and solidified filling material constitutes a substrate
Data Source
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AI summary
The invention relates to a method for mounting at least one decorative element (3) on a support (2) comprising the steps of: a. obtaining a support (2) having at least one cavity (4); b. obtaining at least one decorative element (3); c. filling said cavity with a composite filling material comprising at least one metallic powder and at least one organic binder and having, at the time of filling, a viscosity between 1,000 mPa.s and 1,000,000 mPa.s; d. heating the composite filling material to a temperature above its melting point to make it liquid; e. allowing the filling material to cool to form a substrate (6); f. making at least one recess (8) in said substrate (6); g. mounting said decorative element (3) in said recess (8).The present invention also relates to a decorative support (2) provided with at least one cavity (4) filled with said filling material forming a substrate (6) in which at least one housing (8) is provided, said housing (8) being arranged to receive said decorative element (3).