Resin Molded Article Beam Portions for Deterioration Assessment
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Solution Overview
Problem
Current methods for determining the deterioration of resin molded articles in recycled industrial products are inefficient, often requiring specialized devices and complex analyses, such as differential scanning calorimetry, to assess reuse potential.
Innovation Solution
Incorporating multiple beam-shaped portions with varying lengths and thicknesses into the resin molded articles, allowing for simple deformation-based evaluation of deterioration by applying a force, which determines plastic deformation, breakage, or no-change, thereby assessing the article's reuse viability without the need for measuring devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If differential scanning calorimetry analysis is used to determine deterioration, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent extracts the deterioration assessment function from complex laboratory equipment (calorimeter) and implements it through simple beam-shaped portions that can be evaluated by basic deformation testing. The beam portions are designed with specific geometric parameters (length, width, thickness) that allow them to indicate deterioration through visible deformation or breakage when subjected to bending forces, eliminating the need for sophisticated thermal analysis equipment.
Solution Approach 2:
The beam-shaped portions are designed as simple, inexpensive test elements made from the same resin material as the molded article. These beams serve as disposable or single-use indicators that can be easily deformed or broken during the assessment process, providing a low-cost alternative to expensive and complex calorimetric analysis equipment.
2Measurement precision
If multiple beam-shaped portions with different dimensions are used, then measurement precision is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies local quality by designing beam-shaped portions with specific dimensional characteristics (different lengths, widths, or thicknesses) that create varying stress distributions during deformation testing. Each beam's local geometric properties are optimized to provide different sensitivity levels for detecting deterioration, allowing the system to assess material degradation across multiple stress thresholds simultaneously.
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 method enables accurate and straightforward determination of resin molded article deterioration by evaluating plastic deformation or breakage, allowing for effective reuse assessment, reducing the complexity and cost associated with existing evaluation techniques.
Implementation Method 1
the free end plastically deformable
Implementation Method 2
The free end of each of the multiple beam-shaped portions is plastically deformable or breakable
Data Source
AI summary
A resin molded article includes multiple beam-shaped portions each having a fixed end connected to a bottom of the resin molded article, and a free end rising from the bottom of the resin molded article in a first direction, the free end plastically deformable. The multiple beam-shaped portions have different maximum bending stresses in bending the free end by a predetermined amount in a second direction intersecting the first direction.