Method for manufacturing internal conducting rod of large-scaled high-frequency resonant cavity

Abstract

The invention mainly relates to a method for manufacturing an internal conducting rod of a large-scaled high-frequency resonant cavity. The method comprises the following steps of: welding an oxygen free copper semi-tube and a semi-box into a whole on a platform; soldering cooling coils on the inner walls of the semi-tube and the semi-box; welding a tube sleeve and an end plate, and performing leakage detection; closely clamping a welding piece of two semi-tubes and semi-boxes by a clamping ring, and putting the welding piece of the end plate and the tube sleeve on the end head of the splicing piece; by using vacuum electric beam welder, spot welding the splicing pieces into one body, removing the clamping ring, using the vacuum electric beam welder again to achieve full penetration of weld of seams between the two semi-tubes and between the two semi-tubes and the end head; under water cooling, welding seams between the two semi-boxes and between the semi-boxes and a drift tube; welding seams between the cooling coil and the tube sleeve, and performing leakage detection; fine finishing the internal conducting rod; and finally mechanically polishing the outer surface of the internal conducting rod. The internal conducting rod of the large-scaled high-frequency resonant cavity, which is manufactured by the novel process, has the advantages of small surface resistance, good conducting performance, high cooling efficiency, good stability, small errors of dimensional size and shape, and good vacuum indexes and the improved performance of the whole high-frequency resonant cavity.

Description

Technical field: [0001] The present invention mainly relates to the technical field of a new technology for manufacturing a conductive rod in a core part of a large-scale high-frequency resonant cavity, especially a method for manufacturing a conductive rod in a large-scale high-frequency resonant cavity. Background technique: [0002] The manufacturing level of the conductive rod in the high-frequency resonant cavity is one of the keys that affect the performance parameters of the cavity. The inner conductive rod carries tens of thousands of volts of high-frequency radio frequency voltage, and its stability and reliability are very important to the resonant cavity. Therefore, whether the processing quality of the inner conductive rod can be guaranteed through a good machining process depends on the quality factor and resonance of the resonant cavity. frequency stability. At present, when conventional welding methods are used to manufacture inner conductive rods, defects su...

AI Technical Summary

Problems solved by technology

At present, when the inner conductive rod is manufactured by conventional welding methods, due to defects such as welding deformation, insufficient welding depth, and tin solder coil tube falling off, the manufacturing level of the inner conductive rod is directly affected, and it is even easy to be scrapped midway.

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