Polished Chrome-Type Element with Rear Polymer Coating
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Solution Overview
Problem
Existing methods for producing shiny chrome parts are costly and prone to the chrome layer peeling off, especially when using a plastic base, while also lacking in reflectivity and durability.
Innovation Solution
A shiny chrome part is created with a supporting transparent plastic layer on the rear side, where a polymer chrome layer is applied and protected by a protective cover layer, allowing for high durability and reflectivity, and the plastic layer can be curved to focus or scatter light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a chrome layer is applied on the outside of a plastic part, then a shiny chrome appearance is achieved, but the chrome layer may come off and the production is expensive
Solution Approach 1:
Instead of applying the chrome layer on the outside of the plastic part, the invention inverts the structure by placing the polymer chrome layer on the rear side of the transparent plastic layer. This inversion protects the chrome layer from direct exposure and prevents it from coming off, while still achieving the shiny chrome appearance through light reflection.
Solution Approach 2:
The invention uses a composite structure consisting of a transparent plastic layer (polymethyl methacrylate or polycarbonate) combined with a polymer chrome layer (paint system with metallic pigments). This composite material approach allows the transparent plastic to provide structural integrity and protection, while the polymer chrome layer provides the reflective chrome appearance.
2Illumination intensity
If a chrome layer is applied on the outside of a plastic part, then a shiny chrome appearance is achieved, but the production cost increases
Solution Approach 1:
The invention replaces expensive traditional chrome plating processes with a more economical polymer chrome layer applied as a lacquer or paint. This polymer chrome layer can be applied using standard coating techniques, significantly reducing production costs while maintaining the visual appearance of chrome.
3Illumination intensity
If the transparent plastic layer is curved to focus or scatter light, then reflectivity is improved, but the manufacturing complexity increases
Solution Approach 1:
The invention employs curved surfaces of the transparent plastic layer to focus or scatter light as needed for reflector applications. The curvature can be concave or convex, allowing the structure to direct light in specific patterns while maintaining a relatively simple single-piece construction that integrates the optical function into the basic shape.
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 simplifies production, reduces environmental impact, enhances durability, and achieves high reflectivity, making it suitable for various applications such as vehicle reflectors and decorative elements.
Implementation Method 1
a thin polymer chrome layer 2 is applied, in particular sprayed on, in particular as a paint, which reflects rays, in particular light, which penetrates from the front through the transparent plastic layer and is radiated to the front again
Data Source
Figure 1~4
AI summary
The invention relates to a polished chrome-type element, especially a reflector, chrome strip, handle strip, radiator grill of a motor vehicle, or closure, the element having a supporting transparent plastic layer onto the back of which a polymer chrome coat is applied especially in the form of a lacquer.