Flexible Insulated Wire Manufacturing via Chamois Pad Coating
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Solution Overview
Problem
Existing methods for manufacturing insulated wires, such as spraying, often result in clogging and lack precision in coating thickness, and are not suitable for high-temperature environments or flexible applications.
Innovation Solution
A method involving drawing a conductive wire through pads with a chamois leather material coated with a slurry containing a dielectric precursor material and a binder, followed by heat treatment, to form a flexible insulated wire with controlled coating thickness and high-temperature durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If spraying is used to apply insulating material, then the process is automated and can handle high production volumes, but the system may clog causing downtime and the coating thickness precision is poor
Solution Approach 1:
The patent replaces the spraying mechanical system with a dip-coating system where the wire is drawn through a pad containing the insulating material. This substitution eliminates the clogging issues inherent in spray systems while providing controlled, uniform coating thickness through the mechanical action of drawing the wire through the material-laden pad.
Solution Approach 2:
The patent introduces a pad as an intermediary medium between the insulating material and the wire. The pad, made of porous material, holds the insulating material and transfers it to the wire surface in a controlled manner during the drawing process, ensuring uniform coating thickness without the precision problems of spraying.
2Reliability
If conventional insulating coatings are applied, then the wires can be insulated, but the wires cannot be bent without coating loss and cannot withstand high temperatures
Solution Approach 1:
The patent changes the chemical and physical parameters of the insulating coating by using a specific composition applied through dip-coating followed by controlled drying. This produces a coating that is flexible and heat-resistant, enabling the wire to be bent without coating loss and to withstand high-temperature environments, thus improving adaptability while maintaining insulation reliability.
3Reliability
If multiple layers of insulating material are applied to ensure adequate insulation, then the insulation effectiveness is improved, but the process complexity and time increase
Solution Approach 1:
The patent applies all necessary insulating material in a single preliminary dip-coating action, rather than requiring multiple sequential applications. The pad delivers sufficient material in one pass, and the subsequent drying process completes the insulation, thereby reducing process complexity and time while maintaining adequate insulation effectiveness.
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 method produces insulated wires that can be bent without coating loss and are suitable for high-temperature environments, with improved adhesion and flexibility, while being cost-effective and simple to perform.
Implementation Method 1
drawing a conductive wire through a first pad to apply a layer of a first slurry onto the conductive wire, the first pad comprising a chamois leather material and including the first slurry disposed on the chamois leather material
Implementation Method 2
heat treating the conductive wire to form the insulated wire
Data Source
AI summary
Methods of manufacturing insulated wires are provided. In an embodiment, by way of example only, a method includes drawing a conductive wire through a first pad to apply a layer of a first slurry onto the conductive wire, the first pad comprising a chamois leather material and including the first slurry disposed on the chamois leather material, wherein the first slurry comprises a first dielectric precursor material and a first binder having an organic component and heat treating the conductive wire to form the insulated wire.