Polymer Cable Insulation Cooling to Prevent Twisting Deformation

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Solution Overview

Problem

Existing methods for manufacturing wire and cable products face challenges in reducing deformation and compression forces during manufacturing processes, leading to increased capacitance, reduced signal integrity, and higher costs due to the need for additional insulation to compensate for deformations.

Innovation Solution

The method involves temporarily altering the hardness of polymer insulation layers by exposing them to chilled fluids, such as cryogenic liquids, to increase the Young's modulus and reduce deformation during manufacturing processes like twisting and braiding, thereby maintaining conductor spacing and improving electrical performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the manufacturing line speed is reduced to alleviate compression forces, then deformation of polymer components is reduced, but productivity decreases

Engineering Contradiction:
Improvedeformation of polymer componentsVSAvoidmanufacturing line speed
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent changes the temperature parameter of the polymer insulation layer to alter its hardness. By cooling the polymer below its glass transition temperature, the material becomes harder and more resistant to compression forces during manufacturing, allowing high-speed production without deformation

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies preliminary cooling to the polymer insulation layer before the compression forces are applied during manufacturing processes. This preliminary hardening prevents deformation before it can occur, rather than attempting to correct it afterward

Inventive Principle:
Principle #10Preliminary action

2Manufacturing precision

If additional insulation material is added to compensate for compression deformation, then conductor spacing is maintained, but cable size and cost increase

Engineering Contradiction:
Improveconductor spacingVSAvoidinsulation material
Core Design Contradiction:
Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent changes the temperature parameter of the polymer insulation layer to alter its hardness. By cooling the polymer below its glass transition temperature, the material becomes harder and more resistant to compression forces during manufacturing, allowing high-speed production without deformation

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies preliminary cooling to the polymer insulation layer before the compression forces are applied during manufacturing processes. This preliminary hardening prevents deformation before it can occur, rather than attempting to correct it afterward

Inventive Principle:
Principle #10Preliminary action

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 approach reduces deformation, maintains conductor spacing, and allows for faster manufacturing speeds while minimizing the need for additional insulation, thus improving electrical performance and reducing production costs.

Implementation Method 1

temporarily altering the hardness of polymer insulation layers by exposing them to chilled fluids, such as cryogenic liquids

Methodology Applied
Scientific EffectThermal cooling: Cooling

Implementation Method 2

exposing them to chilled fluids, such as cryogenic liquids, to increase the Young's modulus and reduce deformation

Methodology Applied
Scientific EffectCryogenic hardening: Cryogenics

Data Source

PatentUS20250329481A1System and method for forming wire and cable
Publication Date: 2025.10.23 DAIKIN INDUSTRIES LTD
  • US20250329481A1 patent drawing
  • US20250329481A1 patent drawing
  • US20250329481A1 patent drawing

AI summary

A system and method for manufacturing wire and cable products with a polymer cable component is provided. The systems and methods include increasing the hardness of a polymer cable component in order to reduce compression and deformation of the cable components during manufacturing. In some instances, the hardness is temporarily increased prior to or during the process of creating twisted pair or during the cabling process.