Magnesium Alloy Protective Frame Segmentation and Welding
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Solution Overview
Problem
Conventional protective masks made from metallic bars are heavy, have inconsistent and difficult-to-repair welding joints, and may dismantle upon impact, compromising both safety and aesthetics.
Innovation Solution
A protective frame composed of integrally formed semi-solid magnesium alloy frame units connected via a tongue-and-groove mechanism and secured by welding, reducing reliance on manpower and enhancing structural strength and appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple metallic bars are assembled through welding to form a conventional protective frame, then the frame can be constructed with sufficient strength, but the welding joints are inconsistent, difficult to repair, and may dismantle upon impact
Solution Approach 1:
The protective frame is divided into multiple independent bar units (first bar, second bar, third bar, fourth bar, fifth bar, sixth bars) that can be assembled through welding. Each bar is a separate component that can be individually manufactured and then joined together, allowing for modular construction while maintaining overall structural strength.
Solution Approach 2:
Multiple bar units are combined through welding to form a complete protective frame structure. The welding process merges the separate metallic bars into a unified assembly that provides comprehensive facial protection, integrating the strength of individual bars into the overall frame structure.
2Strength
If solid iron bars are used to construct the protective frame, then sufficient strength is achieved, but the frame becomes relatively heavy
Solution Approach 1:
The material composition of the frame bars is optimized by using aluminum alloys instead of solid iron bars. This parameter change in material selection maintains the required structural strength while significantly reducing the weight of the frame, making it more comfortable for athletes to wear during extended periods.
Solution Approach 2:
Aluminum alloys are used as composite materials to construct the frame bars. These alloys provide a high strength-to-weight ratio, combining the necessary mechanical strength for protection with reduced weight compared to traditional solid iron construction.
3Device complexity
If multiple metallic bars are welded together to form a three-dimensional configuration, then the frame structure is complete, but the welding process requires significant manpower and cost
Solution Approach 1:
The frame is segmented into multiple pre-fabricated bar units that can be manufactured independently through standardized processes. This segmentation allows for more efficient manufacturing of individual components before final assembly, reducing the overall complexity and manpower required for the complete fabrication process.
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 results in a lighter, safer, and more comfortable mask with improved structural integrity and appearance, while minimizing the need for manual labor in fabrication.
Implementation Method 1
secured by welding
Data Source
AI summary
A protective frame of a mask includes: a first frame unit integrally formed as one piece, and including a first protective part for protecting a portion of a face of a user, and a first connecting part integrally connected to the first protective part; and a second frame unit integrally formed as one piece, and including a second protective part for protecting another portion of the face of the user, and a second connecting part integrally connected to the second protective part. The first connecting part is connected to the second connecting part, and the first frame unit and the second frame unit are connected together to constitute the protective frame.