Composite Pipe Fitting Structure to Prevent Distortion
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Solution Overview
Problem
Conventional fittings, either entirely metal or plastic, face challenges such as high manufacturing costs and susceptibility to distortion when combined with pipes or other fittings, with metal fittings being expensive to process and plastic fittings prone to breaking down.
Innovation Solution
A fitting design that incorporates a metal member within a plastic body, using insert molding to surround a liner with sub metal members, which enhances strength and prevents distortion while maintaining low manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a fitting is formed entirely of metal, then strength is improved, but manufacturing cost increases and processing difficulty increases
Solution Approach 1:
The patent applies composite materials by combining a metal member (providing strength) with a plastic body (providing ease of manufacture and low cost). The metal member is inserted into the plastic body through insert molding, creating a composite structure that achieves both high strength and low manufacturing cost, resolving the contradiction between strength and ease of manufacture.
2Strength
If a fitting is formed entirely of metal, then strength is improved, but processing difficulty increases
Solution Approach 1:
The composite structure of metal member embedded in plastic body simplifies processing compared to forming an entire metal fitting. The plastic body can be easily molded, and the metal member is pre-formed and inserted, avoiding complex metal forming operations while maintaining strength requirements.
Solution Approach 2:
The fitting is segmented into two separate components: a metal member and a plastic body. This segmentation allows each component to be manufactured using the most suitable process for its material properties, then assembled together, reducing overall processing complexity.
3Ease of manufacture
If a fitting is formed entirely of plastic, then manufacturing cost is reduced, but distortion occurs when combined with pipe or fitting
Solution Approach 1:
The metal member embedded in the plastic body provides structural support and resistance to distortion, while the plastic body maintains low manufacturing cost. The metal reinforcement prevents the plastic from deforming when the fitting is combined with pipes or other fittings, resolving the contradiction between cost and distortion resistance.
4Ease of manufacture
If a fitting is formed entirely of plastic, then manufacturing cost is reduced, but reliability decreases due to breaking down
Solution Approach 1:
The metal member provides high strength and resistance to breaking, while the plastic body maintains low manufacturing cost. The composite structure combines the advantages of both materials: the metal prevents breaking and failure, while the plastic keeps the overall cost low, resolving the contradiction between manufacturing cost and reliability.
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 effectively prevents distortion and enhances the strength of fittings when combined with pipes or other fittings, while reducing manufacturing costs and processing complexity.
Implementation Method 1
at least one hole in which melt plastic is filled when an insert molding is performed is formed on the metal member
Data Source
AI summary
Various fittings capable of preventing distortion are disclosed. The fitting comprises a metal member configured to have at least two sub metal members and a body. Here, the sub metal members are included in the body, and the body is formed of plastic.