Silicone Cable Separation Layer for Residue-Free Stripping
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Solution Overview
Problem
Cables with silicone sheaths exhibit strong adhesion to conductors, making separation and subsequent processing difficult, with residue issues interfering with crimping or welding, and existing separation layers often require manual removal.
Innovation Solution
A silicone-based separation layer with reduced adhesion to the conductor is introduced between the silicone sheath and the conductor, allowing for easy stripping and automatic removal with the sheath, utilizing a filler-enhanced silicone material with higher density for improved bonding with the sheath and reduced adhesion to the conductor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a silicone sheath is used for cable protection, then chemical and physical properties are improved, but adhesion to conductor becomes too strong causing residue during stripping
Solution Approach 1:
The cable structure is segmented into three distinct layers: conductor, separation layer, and silicone sheath. The separation layer acts as an intermediate segment that prevents direct adhesion between the silicone sheath and conductor, enabling easy stripping while maintaining protection quality.
Solution Approach 2:
A separation layer made of silicone material with modified properties serves as an intermediary between the conductor and silicone sheath. This intermediate layer has reduced adhesion to the conductor while maintaining strong bonding to the sheath, facilitating residue-free stripping.
2Ease of operation
If a separation layer is applied to prevent adhesion, then stripping is improved, but manual removal of film portions is required
Solution Approach 1:
The separation layer and silicone sheath are merged into a single integrated structure where both layers are bonded together. This combination ensures that when the silicone sheath is stripped, the separation layer is automatically removed with it, eliminating the need for manual removal of film portions.
Solution Approach 2:
Both the separation layer and silicone sheath are made from silicone materials with similar chemical composition and bonding characteristics. This material homogeneity ensures strong interlayer bonding while maintaining different adhesion properties to the conductor, enabling automatic removal during stripping.
3Strength
If silicone material is used for separation layer, then bonding to sheath is improved, but adhesion to conductor must be reduced
Solution Approach 1:
The silicone material in the separation layer has locally modified properties: it maintains silicone characteristics for strong bonding to the silicone sheath, while having reduced adhesion quality toward the conductor. This local differentiation of material properties resolves the contradiction between bond strength and conductor adhesion.
Solution Approach 2:
The adhesion parameter of the silicone material is changed in the separation layer compared to the outer sheath. By modifying the silicone material's adhesion characteristics while maintaining its bonding capability, the separation layer achieves strong sheath bonding with reduced conductor adhesion.
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 enables residue-free conductor exposure during processing, eliminating the need for additional cleaning and ensuring a strong bond between the separation layer and sheath, facilitating efficient stripping and manufacturing.
Implementation Method 1
the separation layer that is made of a silicone material that has a lower adhesion to the electrical conductor as compared with the material of the silicone sheath
Implementation Method 2
utilizing a filler-enhanced silicone material with higher density for improved bonding with the sheath and reduced adhesion to the conductor
Data Source
AI summary
A cable having an electrical conductor, a silicone sheath surrounding the conductor, and a separation layer between the conductor and the silicone sheath. Said cable is characterized in that the separation layer is made of a silicone material that is less adhesive to the conductor than the material of the silicone sheath. The invention further relates to a method for manufacturing a cable of said type.