Paddle Racket Assembly Using Adiabatic Heating and Cold Bonding
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Solution Overview
Problem
The existing paddle racket manufacturing methods that combine materials with different properties, such as plastic and carbon fiber, result in material degradation and deterioration due to uniform heating and pressurizing, affecting the quality and performance of the racket.
Innovation Solution
A manufacturing method that classifies processing components based on their heating and pressurizing characteristics, applying adiabatic heating to pre-adiabatic components and using cold bonding to connect them, avoiding material degradation and ensuring quality and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If uniform heating and pressurizing are applied to combine different materials (plastic and carbon fiber) in the mold, then the materials can be assembled together to form the paddle racket structure, but material degradation and deterioration occur due to excessive heating affecting the heat-sensitive plastic material
Solution Approach 1:
The manufacturing process is segmented into distinct stages: pre-heating stage (heating only the fiber layer and frame to molding temperature), adiabatic stage (maintaining temperature without additional heating), and cooling stage. This segmentation allows different materials to be processed under appropriate thermal conditions, preventing plastic degradation while achieving proper bonding.
Solution Approach 2:
The fiber layer and frame are pre-heated to the required molding temperature before the plastic material is introduced into the mold. This preliminary action ensures that the thermosetting fiber layer is ready for bonding without subjecting the heat-sensitive plastic to excessive heating, thus preventing material degradation.
2Device complexity
If uniform heating is applied to all components, then the processing can be simplified, but the heat-sensitive plastic material undergoes material degradation and deterioration
Solution Approach 1:
Different heating strategies are applied to different components based on their material properties: the fiber layer and frame receive intensive heating to reach molding temperature, while the plastic material is protected from excessive heat. The mold design incorporates localized heating zones that apply heat selectively to specific areas, ensuring each material is processed under optimal conditions.
3Productivity
If different materials are processed together under the same conditions, then the manufacturing process is simplified, but the final core quality is affected by material degradation
Solution Approach 1:
The heating process is made dynamic rather than static, with temperature and heating power being adjusted at different stages. The system transitions from a high-heating-power state during pre-heating to an adiabatic state during maintenance, and finally to a cooling state. This dynamic control allows efficient processing while preventing material degradation.
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 improves the quality and performance of paddle rackets by preventing material degradation, allowing better control over the ball's contact time and rotation force.
Implementation Method 1
applying an adiabatic heating on the pre-adiabatic processing component according to the material characteristic to form a processing component already processed with adiabatic process, the fiber layer of the processing component already processed with adiabatic process adhering to the base material
Implementation Method 2
the cooling step cooling the processing component already processed with adiabatic process to normal temperature
Implementation Method 3
the bonding step using cold bonding without using heat to connect the processing component already processed with adiabatic process with the non-adiabatic processing component
Data Source
AI summary
A paddle racket manufacturing method comprises a material preparation step, a classification step, an adiabatic step, a cooling step and a bonding step, the material preparation step preparing a plurality of processing components; the classification step classifying each of the plurality of processing components into a pre-adiabatic processing component and a non-adiabatic processing component according to a heating characteristic and a pressurizing characteristic corresponding to a material characteristic of its composition; the adiabatic step applying an adiabatic heating on the pre-adiabatic processing component according to the material characteristic to form a processing component already processed with adiabatic process; the cooling step cooling the processing component already processed with adiabatic process to normal temperature; and the bonding step using cold bonding to connect the processing component already processed with adiabatic process with the non-adiabatic processing component.