Thermosetting Resin Tank Liner Winding Slack Reduction
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Solution Overview
Problem
Conventional tank manufacturing methods often result in slack fibers within the reinforcing layer due to uneven winding and liner shapes, which can lead to reduced strength when the thermosetting resin is cured.
Innovation Solution
A method involving a winding step where fibers are impregnated with thermosetting resin, followed by a shape changing step where the liner's size is increased after winding, and a curing step where the resin is heated while the liner's shape is expanded, reducing slack in the fibers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If fiber is wound on the liner in conventional manufacturing, then the reinforcing layer is formed, but slack occurs in the wound fiber due to winding conditions or liner shape
Solution Approach 1:
The liner is pre-expanded to its final shape before the fiber winding process. This preliminary action ensures that the liner maintains its intended geometry during fiber application, preventing slack formation and ensuring uniform fiber distribution and optimal tank strength.
Solution Approach 2:
The patent employs a dynamic approach by expanding the liner progressively or maintaining it in an expanded state during the winding process. This dynamic maintenance of liner shape prevents fiber slack and ensures consistent winding quality throughout the manufacturing process.
2Ease of manufacture
If thermosetting resin is cured with slack present in the fiber, then the reinforcing layer is completed, but the slack remains in the resultant reinforcing layer reducing strength
Solution Approach 1:
The liner is pre-expanded to its final shape before fiber winding and maintained in this expanded state during the curing process. This preliminary and sustained expansion ensures that fibers are taut when resin is applied and cured, eliminating slack in the final reinforcing layer while maintaining manufacturing simplicity.
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 minimizes the extent of slack in the fibers, thereby enhancing the compressive strength of the tank by ensuring the thermosetting resin is cured with reduced fiber deviation and frictional forces, leading to a more robust tank structure.
Implementation Method 1
a curing step of heating and curing the thermosetting resin while the shape of the liner is increased by the shape changing step
Data Source
AI summary
A method of manufacturing a tank includes: a winding step of winding a fiber impregnated with thermosetting resin before curing on a liner; a shape changing step of making the shape of the liner larger than the shape thereof at the time of the winding step, the shape changing step being performed after the winding step; and a curing step of heating and curing the thermosetting resin while the shape of the liner is increased by the shape changing step.