Aluminum Alloy Button Back Plating-Free Whitish Appearance
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Solution Overview
Problem
Conventional metal buttons require costly and environmentally harmful silver plating for a high-grade appearance, and stainless steel buttons have poor workability, leading to frequent mold exchanges and environmental load, while lacking the whitish color tone desired for high-grade impressions.
Innovation Solution
A button made from an aluminum alloy with 3-6% magnesium, eliminating the need for plating and enhancing shock absorption, reliability, and recycling efficiency, with a button back thickness of 0.25-0.6 mm for sufficient strength and a whitish appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If copper-zinc alloy is used for button back and subjected to silver white plating treatment, then high-grade impression is achieved, but working steps increase and environmental load increases due to plating waste water
Solution Approach 1:
The invention extracts and eliminates the plating process from the manufacturing workflow by selecting aluminum alloy as the base material, which inherently provides the desired whitish color tone without requiring additional surface treatment layers
Solution Approach 2:
The invention changes the fundamental material parameter from copper-zinc alloy to aluminum alloy, which fundamentally alters the color properties and eliminates the need for plating while maintaining structural functionality
2Illumination intensity
If stainless steel is used for button back to avoid plating, then silver white color tone is achieved, but workability deteriorates and mold life decreases requiring frequent mold exchanges
Solution Approach 1:
The invention changes the material parameters by selecting aluminum alloy with specific magnesium content (3-6%), which optimizes both the color properties (whitish appearance) and mechanical properties (workability and mold life) simultaneously
3Ease of manufacture
If conventional materials are used for button components, then manufacturing experience is available, but environmental load increases due to plating treatments and frequent mold exchanges
Solution Approach 1:
The invention changes the material composition parameters to aluminum alloy with 3-6% magnesium, which fundamentally reduces environmental impact by eliminating plating waste water and reducing mold exchange frequency, while maintaining manufacturability
Solution Approach 2:
The invention converts the potential disadvantage of aluminum alloy (perceived lower strength) into an advantage by utilizing its excellent corrosion resistance and inherent whitish color, thereby eliminating harmful plating processes while maintaining or improving overall product performance
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 solution provides a cost-effective, plating-free, whitish button with improved shock absorption, reliability, and recyclability, without environmental pollution, and maintains strength and design integrity.
Implementation Method 1
the button excels in the shock absorption properties when the fastener is attached thereto
Implementation Method 2
to be bent (curled) by the aid of a curved surface of a recess 12 of the insert 11
Implementation Method 3
the cap manufactured by cold pressing a linear material of a copper-zinc alloy to a predetermined shape
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A button comprises a button body (10, 10a, 10b) and a prong (20, 20a, 20b) adapted to be arranged on the side of cloth (30) opposite to the side thereof on which the button body mentioned above is set in place to nip the cloth therebetween and to fixedly secure the button body to the cloth. The button body mentioned above contains an outer shell member (13), which comprises a button back (15, 15a, 15b) and a cap (14, 14a, 14b), and an insert (11, 11a, 11b) accommodated in the outer shell member. In order to make a whitish button which could be heretofore obtained only by plating, at least the button back mentioned above is made of aluminum or an aluminum alloy. Preferably, the button back mentioned above is made of an aluminum alloy containing 3-6% by weight of magnesium, and the cross-sectional thickness of the above-mentioned button back is in the range of 0.25-0.6 mm. Further, it is desirable that the above-mentioned cap and the insert should also be made of an aluminum alloy.