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A brazing method for repairing bulging defects of thin-walled components

A component and thin-wall technology, which is applied in the field of repairing brazing defects of thin-wall components to achieve tight and reliable connections, avoiding rework, and tight connections

Active Publication Date: 2022-03-11
XIAN YUANHANG VACUUM BRAZING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is to provide a brazing repair method for repairing the bulging defect of thin-walled components, which solves the repair problem of "blind brazing seam" in the bulging area of ​​thin-walled components, and has reliable quality

Method used

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  • A brazing method for repairing bulging defects of thin-walled components
  • A brazing method for repairing bulging defects of thin-walled components

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings, which are explanations rather than limitations of the present invention.

[0031] A brazing method for repairing bulging defects of thin-walled components, comprising the following steps:

[0032] (1) Apply pressure to the bulging area 4 of the thin-walled component through tooling and pressure devices, and level the bulging area 4 of the thin-walled component;

[0033] (2) Process the blind hole passing through the upper plate 1 on the rib of the runner groove below the bulging area 4 of the thin-walled component, and the vertical distance between the bottom of the blind hole and the bottom of the upper plate 1 of the thin-walled component is 1~2mm;

[0034] (3) Pour powdery solder into the bottom of the blind hole, apply paste solder around the reinforcing column 3, and then install the reinforcing column 3 in the blind hole;

[0035] (4) Put the thin-walled...

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Abstract

The invention discloses a brazing method for repairing bulging defects of thin-walled components. Firstly, pressure is applied to the bulging area by means of tooling and a pressure device to level the bulging area, and then the ribs of the runner groove under the bulging area are processed through For the blind hole on the upper plate, the distance between the bottom of the blind hole and the bottom of the upper plate of the thin-walled component is 1~2mm; pour powdered solder into the bottom of the blind hole, apply cream solder around the reinforcement column, and place the reinforcement column Installed in the blind hole; put the thin-walled component with the reinforced column into the vacuum furnace for vacuum brazing, and leave the furnace after cooling; milling and cutting off the part of the reinforced column that is higher than the surface of the thin-walled component, so that the reinforced column and the surface of the thin-walled component flush. The invention solves the repair problem of "blind brazing seam" in the bulging area of ​​thin-walled components by processing blind holes on the ribs of the runner grooves below the bulging area, and fixing the reinforcing column in the blind holes by vacuum brazing, and is easy to operate ,reliable quality.

Description

technical field [0001] The invention belongs to the technical field of aerospace equipment processing, and relates to a brazing method for repairing bulging defects of thin-walled components. Background technique [0002] In thin-walled components vacuum-brazed between flat and flat plates, or between curved surfaces and thin-walled components, after vacuum brazing is completed, the quality of the bulge often occurs during the pressure test or during the use of the thin-walled components. problem and needs to be repaired. Since the brazing seam in the bulging area of ​​the thin-walled component is a non-exposed brazing seam, and the thin-walled component has a cooling channel inside, the maintenance personnel cannot directly repair or repair the brazing without seeing the inside of the thin-walled component, resulting in the bulging thin-walled There is a problem that the components are difficult to repair, and they can only be disassembled and re-brazed or scrapped, which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23K1/008B23K1/20
CPCB23P15/00B23K1/008B23K1/20
Inventor 任耀文李文昌刘洋琚明李淑芳
Owner XIAN YUANHANG VACUUM BRAZING TECH
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