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Device and method for producing runner-containing part of fusion reactor cladding by utilizing explosive cladding

A technology for flow channel components and fusion reactors, applied in non-electric welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of secondary deformation, complicated procedures, affecting the dimensional accuracy of the flow channel, and reduce the difference in wave impedance. , the effect of ensuring overall strength and integrity

Pending Publication Date: 2020-11-06
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method cleverly solves the distortion problem caused by bending and shaping after the flow channel is formed, but the process is complicated, and the adaptability of the special-shaped tube to the shape of the flow channel requires repeated hydraulic bulging forming adjustments, and the bending angle of the special-shaped tube is in the heat. Secondary deformation is prone to occur during isostatic pressing, which affects the accuracy of the flow channel size

Method used

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  • Device and method for producing runner-containing part of fusion reactor cladding by utilizing explosive cladding
  • Device and method for producing runner-containing part of fusion reactor cladding by utilizing explosive cladding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A device for explosive composite production of flow path components in the cladding of a fusion reactor, including: a jack 1, a metal bead 2, a launder 3, a mixed filler of weak acid and weak base salt powder and low melting point metal particles 4, a detonator 5, and an explosive layer 6. PVC foam board buffer layer 7, cover plate 8, support column 9 rolled by metal foil and sandy ground 10, wherein, the pressure head of jack 1 is located above the metal bead 2, and it is in contact with the upper surface of the metal bead 2 during work. Close fit, by applying pressure to the metal bead 2, the mixed filler 4 of weak acid and weak base salt powder and low melting point metal particles is fully compacted; the side wall of the metal bead 2 is closely tangent to the inner wall of the launder 3 After receiving the pressure of the jack 1, the mixed filling 4 of weak acid and weak base salt powder and low melting point metal particles is compressed; the detonator 5 is arranged...

Embodiment 2

[0027] A method for explosive recombination production of flow channel components in the cladding of a fusion reactor, comprising the following steps:

[0028] (1) Mechanically mill out the shape of a straight rectangular flow channel on the plate, and process the rectangular metal bead covering the plate and the same cross-section but higher than the flow channel;

[0029] (2) Use a grinder and sandpaper to smooth the surface of the launder and the doubler plate to be compounded, and wipe with alcohol to decontaminate;

[0030] (3) As attached figure 1 As shown, the launder 3 is placed in the jack 1, the launder 3 is a launder plate of any shape, the launder is filled with a mixed filler 4 of weak acid and weak alkali salt powder and low melting point metal particles, and the metal bead 2 is placed Right above the launder, control the pressure of the jack 1 to 5MPa, repeat the process of filling and compacting until the surface of the filler is flush with the upper surface o...

Embodiment 3

[0036] A method for explosive recombination production of flow channel components in the cladding of a fusion reactor, comprising the following steps:

[0037] (1) Mechanically mill out the U-shaped flow groove shape on the plate, and process the U-shaped metal bead covering the plate and the same cross-section but higher than the flow groove;

[0038] (2) Use a grinder and sandpaper to smooth the surface of the launder and the doubler board to be compounded, and wipe with alcohol to decontaminate;

[0039] (3) As attached figure 1 As shown, the launder 3 is placed in the jack 1. The launder 3 is a launder plate of any shape. The launder is filled with a mixed filler 3 of weak acid and weak alkali salt powder and low melting point metal particles, and the metal bead 2 is placed Directly above the launder, control the pressure of jack 1 to 5MPa, repeat the process of filling and compacting until the surface of the filling is flush with the upper surface of the launder, and the...

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Abstract

The invention discloses a device and a method for producing a runner-containing part of a fusion reactor cladding by utilizing explosive cladding. According to the device and the method, for a runnerpipe fitting and a covering plate before forming, certain salt powder of weak acids and weak bases is well mixed with certain low-melting-point metal particles according to a certain proportion, the resulting mixture is used for filling a runner, then the filler material is compacted with a jack to be flush with a runner opening. Compaction and filling of the runner eliminate huge acting force generated by detonation waves on the two sides of a composite interface due to wave impedance mutation, integrity of the shape and the microstructure of the runner-containing part is guaranteed, and theproblems of runner deformation and cracks generally existing in other methods are solved. The characteristic that salts of weak acids and weak bases are easy to decompose after being heated enables the whole filler to become loose during temperature rise, meanwhile, and reducing gas generated by decomposition of the filler can protect low-melting-point metal from being oxidized. It is guaranteed that the filler can be easily and thoroughly removed when the runner, especially a complex special-shaped runner, is heated, and no attachment exists in the obtained runner.

Description

technical field [0001] The invention belongs to the technical field of material composite processing, and in particular relates to a device and method for explosive composite production of flow channel components contained in the cladding of a fusion reactor. Background technique [0002] The cladding of the fusion reactor is the core component of the fusion reactor. Its main function is to multiply tritium to maintain the fusion reaction while converting and utilizing the energy of fusion particles (neutrons and alpha ions). High energy (14MeV) high flux neutron irradiation and high energy density heat flow (>1MW / m 2 ) puts forward a severe test on the thermomechanical performance of the cladding. At present, the most effective way to solve this problem is to install a cooling plate inside the first wall of the cladding facing the heat load, and use the coolant circulating in the plate to absorb the above-mentioned heat energy, eliminate the damage to the components cau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/08B23K20/16B23K20/24B23K20/26
CPCB23K20/08B23K20/16B23K20/24B23K20/26
Inventor 马宏昊徐俊峰陈子俊杨明周恒沈兆武
Owner UNIV OF SCI & TECH OF CHINA
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