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Device, system and method for controlling baking deformation of thin-wall bending vacuum chamber

A vacuum chamber and bending technology, which is applied in the direction of furnace control devices, lighting and heating equipment, furnaces, etc., can solve the problems of poor mechanical properties, easy deformation, and decreased mechanical properties of bending vacuum chambers, so as to avoid being straightening effect

Pending Publication Date: 2022-08-09
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, in order to reduce the eddy current effect on the wall of the curved vacuum chamber, it is necessary to further reduce the thickness of the wall of the curved vacuum chamber, which will lead to a sharp deterioration in the mechanical properties of the curved vacuum chamber, and it is easy to deform; and when baked at high temperature, Further decline in mechanical properties, even lead to weld failure

Method used

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  • Device, system and method for controlling baking deformation of thin-wall bending vacuum chamber
  • Device, system and method for controlling baking deformation of thin-wall bending vacuum chamber
  • Device, system and method for controlling baking deformation of thin-wall bending vacuum chamber

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Experimental program
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Effect test

Embodiment 1

[0035] combine figure 2 and image 3 As shown, both ends of the thin-walled bending vacuum chamber 1 are respectively connected with two devices for controlling the baking deformation of the thin-walled bending vacuum chamber. The movable flange 211 is used to connect one end of the bellows 21 with the thin-walled bending vacuum chamber 1, and the fixed flange 212 is used to fix the other end of the bellows 21. The fixed flange 212 is limited to 6 degrees of freedom. The elastic force provided by the compression spring 23 is used to offset the atmospheric pressure on the bellows 21, so as to achieve the effect of force neutralization, and finally minimize the resultant force transmitted to both ends of the thin-walled bending vacuum chamber 1, thereby reducing the bending vacuum chamber. deformation purpose.

[0036]Each of the thin-walled bending vacuum chambers 1 includes two sets of spring urging mechanisms 23 . The two sets of spring urging mechanisms 23 are symmetrica...

Embodiment 2

[0045] Embodiment 2 of the present invention also provides a system for controlling the baking deformation of the thin-walled bending vacuum chamber, including two of the devices 2 for controlling the baking deformation of the thin-walled bending vacuum chamber and a controller. The device can be a computer, and the two devices 2 for controlling the baking deformation of the thin-walled bending vacuum chamber are respectively fixed and installed on both ends of the thin-walled bending vacuum chamber 1, and the two thin-walled bending vacuum chambers are baked. Both the ring dynamometer 233 and the motor 221 of the baking deformation device 2 are electrically connected to the computer, and the ring dynamometer 233 is used to detect the force F exerted by the compression spring 235 and send the detection result to the computer. The computer controls the rotation of the motor 221 according to the magnitude of the force F.

Embodiment 3

[0047] Embodiment 3 of the present invention provides a method for controlling baking deformation of a thin-walled bending vacuum chamber, based on the system for controlling baking deformation of a thin-walled bending vacuum chamber in Embodiment 2, including the steps:

[0048] A judgment value F is set on the computer 设定 , the F 设定 is the calculated pulling force.

[0049] The ring dynamometer 233 detects the applied force F of the compression spring 235, and sends the detection result to the computer 3. When the computer determines that F设定 , the stepper motor stops rotating.

[0050] When the computer determines that F>F 设定 When the stepper motor rotates in reverse, until the computer determines that F=F 设定 The stepper motor stops turning.

[0051] As one of the implementation cases, the bending vacuum chamber 1 will not produce axial deformation when it is at normal temperature, and will produce several millimeters of axial elongation deformation at the current high ...

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Abstract

The invention relates to a device, a system and a method for controlling baking deformation of a thin-wall bending vacuum chamber. The device comprises a corrugated pipe, each spring force application mechanism comprises a first fixing plate, a second fixing plate, at least one compression spring and at least one guide rod, the guide rods are in one-to-one correspondence with the compression springs, one ends of the guide rods penetrate through the first fixing plates, the other ends of the guide rods are fixed to the second fixing plates, and the compression springs are arranged on the first fixing plates. The compression spring is arranged on the guide rod in a sleeving manner; and the force application adjusting structure is used for adjusting the compression amount of the compression spring, and the other end of the spring abuts against the first fixing plate. According to the device, the atmospheric pressure acting on the end face of the corrugated pipe is counteracted through the spring force, so that the pulling force transmitted to the two ends of the bent vacuum chamber is minimized, and the situation that the bent vacuum chamber is straightened by the pulling force is avoided.

Description

technical field [0001] The invention relates to the technical field of accelerators, in particular to a device, system and method for controlling baking deformation of a thin-walled bending vacuum chamber. Background technique [0002] In order to improve the storage life of the accelerated ions, the heavy ion accelerator needs to obtain ultra-high / high vacuum in the ion transport channel enclosed by the stainless steel bending vacuum chamber. Way. [0003] During baking, bellows are installed at both ends of each bending vacuum chamber to absorb the deformation caused by the thermal expansion of the stainless steel material. like figure 1 As shown, due to the difference in vacuum cross-sectional area on both sides of the flange connecting the end of the curved vacuum chamber with a racetrack-shaped sectional shape and the bellows with a circular sectional shape, under the action of atmospheric pressure, the bellows at both ends have a difference in vacuum cross-sectional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D19/00F27D99/00H05H7/14
CPCF27D19/00F27D99/00H05H7/14F27D2099/0083F27D2099/0085F27M2003/08
Inventor 柴振蒙峻谢文君焦纪强罗成刘建龙李长春马向利魏宁斐
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI