Coaxial Cable Shaped Conductors Manufacturing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The traditional coaxial cable manufacturing process is time-intensive, expensive, and requires complex machinery, particularly in cabling the thin-wire-braiding shielded conductor, which is tedious and prone to breakage, and the subsequent insulation process is also complex and time-consuming.
Innovation Solution
The process involves forming a coaxial cable core using a polymer-insulated, stranded conductor with semi-circular-profile shaped metallic wires, applying an outer layer of insulation in a single pass, and using extruders to simplify the manufacturing process, reducing the footprint and complexity, and making it easier to terminate the cables for downhole tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional thin-wire-braiding process is used to create shielded conductor, then cable shielding performance is achieved, but manufacturing time increases to 48 hours and wire breakage risk increases
Solution Approach 1:
The patent extracts the braiding process entirely by replacing it with solid semi-circular conductors that are extruded directly onto the cable core. This eliminates the need for thin-wire-braiding while maintaining the shielding function through the continuous solid conductor design.
Solution Approach 2:
The patent replaces the mechanical braiding system (rotating spools, alternating wire directions) with an extrusion process that forms solid conductors in a single continuous operation, dramatically reducing manufacturing time and complexity.
2Reliability
If traditional thin-wire-braiding process is used to create shielded conductor, then cable shielding performance is achieved, but device complexity increases with thirty spools and complex machinery
Solution Approach 1:
The patent removes the complex braiding machinery (thirty spools, rotating mechanisms) and replaces it with a simple extrusion system that forms solid semi-circular conductors directly, dramatically reducing device complexity.
Solution Approach 2:
The patent substitutes the complex mechanical braiding system with a straightforward extrusion process that uses die geometry to form the semi-circular conductor shape, eliminating the need for multiple rotating spools and complex control mechanisms.
3Reliability
If traditional separate insulation line process is used, then outer insulation is applied, but manufacturing time increases to 54 hours total and process complexity increases
Solution Approach 1:
The patent merges the conductor formation and insulation application processes into a single integrated extrusion operation. The semi-circular conductors and outer insulation are formed simultaneously in one pass, eliminating the need for separate braiding and insulation lines.
4Reliability
If traditional braided wire conductor is used, then shielding is achieved, but termination complexity increases for downhole tools
Solution Approach 1:
The patent extracts the braided wire structure and replaces it with solid semi-circular conductors that have smooth, continuous surfaces. This eliminates the tangled wire ends and complex termination procedures required for braided conductors, making downhole tool connections much simpler.
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 significantly reduces the manufacturing time for a 24,000-foot cable from 54 hours to approximately six hours, simplifies the process, and minimizes the equipment footprint, while also simplifying the termination process for downhole tools.
Implementation Method 1
apply an outer layer of insulation from an extruder (128) over the shaped wires (102) to form a cable core (131) in a single pass or process (132)
Data Source
AI summary
A coaxial cable that has a cable core is encased in a polymeric layer. The cable core is enclosed with a pair of semi-circular-profile shaped conductors. A layer of polymer is extruded over the shaped conductors. A pair of armor wire layers is cabled about the layer of polymer to form the coaxial cable.