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Clamp for vacuum brazing

A fixture and brazing technology, applied in the field of vacuum brazing fixtures, can solve problems such as large welding defects, relative position deviation of brazing parts, etc., and achieve the effect of solving the problem of equality matching

Pending Publication Date: 2020-06-30
SOUTHWESTERN INST OF PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the clamping process and high-temperature brazing process of ordinary fixtures, the relative position of the brazed parts will be deviated due to thermal expansion and contraction.
[0006] Moreover, due to the unbalanced force applied by ordinary fixtures, the wall material will be partially lifted, which will cause large welding defects during the welding process.

Method used

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  • Clamp for vacuum brazing
  • Clamp for vacuum brazing
  • Clamp for vacuum brazing

Examples

Experimental program
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Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0029] A vacuum brazing fixture for connecting and positioning the surface wall unit of the divertor and the heat sink material, comprising: a bottom plate 100, bolts, an upper fixing block 103, a lower fixing block 105, an elastic piece 104 and a positioning block 107.

[0030] The clamp bottom plate 100 includes a base plate, a limiting groove and a plurality of bolt holes arranged on one surface of the base plate, and the number of bolt holes is determined according to the size of the divertor.

[0031] The bolt includes a bolt column 101 and a nut 102. Both ends of the bolt column 101 have threads. The thread lengths at both ends are one long and one short. The short threaded end is used to connect with the base plate 100, and the long threaded end is used in conjunction with the nut 102 to directly align. The fixed block 103 applies pressure.

[0032...

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PUM

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Abstract

The invention relates to the technical field of brazing, in particular to a clamp for vacuum brazing. The clamp for vacuum brazing is used for connecting and positioning of a wall facing unit of a divertor and a heat sink material and comprises a bottom plate, bolts, an upper fixed block, a lower fixed block, elastic sheets and a positioning block. By means of the design of the upper fixed block,the lower fixed block, the upper elastic sheet and the lower elastic sheet, acting force exerted by nuts is converted into balanced acting force along bolt columns, and the acting force achieves accurate positioning of different modules through positioning block and the cooperation of the bottom plate and the bolt columns.

Description

Technical field [0001] The invention relates to the technical field of brazing, in particular to a clamp for vacuum brazing. Background technique [0002] In the fusion reactor, the divertor is a very important component. It is composed of plasma-facing materials and heat sink materials. The structure is divided into a tube-through structure and a flat-plate structure. In the plate structure, the connection between the plasma facing material and the heat sink material is completed by brazing. [0003] The biggest problem with the connection between the plasma facing material and the heat sink material copper is that there is a large difference in thermal expansion coefficient between the wall material and copper. The difference in the thermal expansion coefficient between the wall material and the copper alloy will cause huge thermal stress when the two are connected, which will cause the brazing connection interface to crack and reduce the service reliability of the wall part. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K3/08B23K37/04
CPCB23K3/087
Inventor 封范练友运王建豹刘翔王金
Owner SOUTHWESTERN INST OF PHYSICS
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