Superconducting Acceleration Cavity Integral Molding
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Solution Overview
Problem
Conventional superconducting acceleration cavities require numerous welding points, leading to increased manufacturing costs and quality instability due to surface defects and resistance issues with high-frequency waves, and existing attempts at integral molding have resulted in cracking and are not practical.
Innovation Solution
A method involving the formation of dumbbell-shaped cavities through integral molding using a cylindrical pipe made of superconducting material, reducing the number of welding points by coupling and welding these cavities, and utilizing molds with concavities and convexities for precise shape formation, along with hydraulic pressure for deformation, to achieve stable and accurate cavity construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional welding method is used to couple multiple half cells, then the cavity can be assembled, but the number of welding points increases leading to quality instability and higher costs
Solution Approach 1:
The invention merges multiple separate half-cell components into a single integrally molded cavity structure. By forming the entire acceleration cavity as one piece through integral molding, the need for numerous welding points is eliminated, thereby improving quality stability and reducing manufacturing complexity.
Solution Approach 2:
The invention segments the molding process into controlled stages using a multi-part mold system. The mold is divided into first and second molds that can be positioned at different locations along the cylindrical pipe, allowing sequential formation of cavity portions while maintaining integral structure.
2Device complexity
If integral molding is attempted for all cells, then the number of welding points is reduced, but cracking occurs in the cavity surface
Solution Approach 1:
The mold system is segmented into multiple independent molds that can be positioned at different locations. This allows the integral molding process to be performed in controlled segments rather than attempting to mold the entire cavity in one operation, preventing excessive stress and cracking.
Solution Approach 2:
The cylindrical pipe is preliminarily prepared with appropriate material properties and structural characteristics before the integral molding process. This preliminary preparation ensures the pipe can withstand the molding stresses without cracking while still achieving the desired integral cavity structure.
3Ease of manufacture
If more welding points are used to ensure proper coupling, then assembly is achieved, but processing accuracy and edge preparation quality decrease
Solution Approach 1:
The invention combines assembly capability into the molding process itself. By forming the cavity as an integral structure, the joining function that would normally require multiple welding operations is achieved during the single molding process, eliminating edge preparation issues while maintaining assembly capability.
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 decreases the number of welding points, stabilizes the quality of the superconducting acceleration cavity, reduces manufacturing costs, and enhances processing accuracy by minimizing defects and maintaining a consistent acceleration gradient.
Implementation Method 1
utilizing molds with concavities and convexities for precise shape formation, along with hydraulic pressure for deformation
Data Source
AI summary
A method for producing a superconducting acceleration cavity having a stabilized quality, by which production cost is reduced by reducing the number of welding points. A dumbbell-shaped dumbbell cell (3) is formed by forming a recessed iris portion (3b) around the central part of a cylindrical pipe made of a superconducting material, a cup-shaped half cell (2) is formed by enlarging one opening and reducing the other opening of the cylindrical pipe made of a superconducting material, a plurality of dumbbell cells (3) are coupled by welding, and the each half cell (2) is welded to the opposite ends of the plurality of dumbbell cell (3), thus producing a superconducting acceleration cavity (1).