PVC Wiring Trough Composition for Flame Retardancy and Hardness
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional PVC wiring troughs suffer from poor functionality, inadequate flame retardancy, low hardness, and complex production processes, lacking aesthetic appeal and practicality.
Innovation Solution
A PVC wiring trough design featuring a trough body and cover with clamping portions, decorated with lugs, made from a mixture of PVC resin, heat stabilizers, anti-impact agents, lubricants, and halogen-free flame retardants, processed using twin-screw extruders to enhance flame retardancy and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional PVC wiring trough is used, then production process is simple, but flame retardancy is poor and hardness is low
Solution Approach 1:
The patent uses composite materials by combining PVC resin with halogen-free flame retardants (magnesium hydroxide, aluminum hydroxide), anti-impact agents (calcium carbonate, barium sulfate), and heat stabilizers. This composite approach enhances flame retardancy and hardness while maintaining a relatively simple extrusion-based production process, resolving the contradiction between improved reliability and device complexity.
2Adaptability or versatility
If conventional PVC wiring trough is used, then material cost is low, but functionality is poor and aesthetic appeal is low
Solution Approach 1:
The wiring trough achieves multi-functionality by integrating flame retardancy, impact resistance, aesthetic appeal (through decoration lugs and wave-shaped design), and wire protection capabilities into a single product. The use of enhanced composite materials and decorative features transforms a simple wiring conduit into a multi-functional component, justifying the increased material cost through superior functionality.
3Strength
If conventional PVC wiring trough is used, then production is simple, but hardness is low and structural strength is insufficient
Solution Approach 1:
The patent changes the material parameters by incorporating hardening agents (calcium carbonate, barium sulfate) and optimizing the extrusion process parameters (temperature 150-180°C, screw speed 30-50 rpm). These parameter changes increase the hardness and structural strength of the wiring trough while maintaining the simplicity of the extrusion production process, resolving the contradiction between strength improvement and process complexity.
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 high-flame-retardant, eco-friendly wiring trough that not only protects wires but also serves as a decorative element, offering improved hardness and a simplified production process.
Implementation Method 1
feeding the processed mixture obtained in step 2 into two twin-screw extruders for extrusion, plasticizing and molding
Implementation Method 2
the extrusion temperature of the twin-screw extruder is 150° C.-180° C.
Data Source
AI summary
A wiring trough, comprising a trough body, and a trough cover arranged on the trough body, wherein the two ends of the trough body are respectively provided with a first clamping portion, and the two ends of the trough cover are respectively provided with a second clamping portion, wherein the trough body and the trough cover are connected in a mutual clamping manner through the first clamping portion and the second clamping portion, wherein a channel for receiving a wire is formed by the trough body and the trough cover, wherein a first decoration lug is arranged on each of the first clamping portion, and a second decoration lug is arranged on each of the second clamping portion.