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Method and special device for preplacing adhesive tape brazing filler metal for honeycombs

A special device and honeycomb technology, which is applied in the field of engine honeycomb structure manufacturing and repair, can solve the problems of bad influence of brazing quality, uneven thickness of brazing filler metal, easy contamination of brazing filler metal, etc., and achieve stable brazing quality, consistent thickness, The effect of saving solder

Active Publication Date: 2013-02-06
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the process requirements, when the honeycomb and the shell are assembled before brazing, the adhesive tape solder needs to be preset to the bottom of the honeycomb core grid. The original preset method is to press the adhesive tape solder into the honeycomb with fingers or metal sheets Core grid, the thickness of the pre-set solder is uneven, easy to fall off, the solder is easy to be polluted, has a bad effect on the brazing quality, and the efficiency is low

Method used

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  • Method and special device for preplacing adhesive tape brazing filler metal for honeycombs
  • Method and special device for preplacing adhesive tape brazing filler metal for honeycombs
  • Method and special device for preplacing adhesive tape brazing filler metal for honeycombs

Examples

Experimental program
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Effect test

Embodiment 1

[0036] A method for pre-setting the honeycomb adhesive tape solder: using a rolling method and using a special device to press the adhesive tape solder 21 placed on the honeycomb base surface into the honeycomb core grid;

[0037] The special device (see attached Figure 1-6 ) consists of a base 1, a guide post 2, 4 springs 3, a pressure plate 4, an upper roller 5, a lower roller 6, a supporting plate 7, 4 locking plates 8, 4 compression nuts 9, and a rocker arm 10; Wherein: there are four guide posts 2, all of which are parallel to each other and vertically fixedly arranged on the base 1; the four guide posts 2 in the device are installed and fixed at the four corners of the base 1, and the upper ends of each guide post 2 are processed with threads Each guide post 2 is respectively covered with a spring 3 from bottom to top and a pressure plate 4 is installed, and a compression nut 9 is respectively arranged on the upper end of the guide post 2 above the pressure plate 4;

...

Embodiment 2

[0048] A special device for presetting honeycomb adhesive tape solder (see attached Figure 1-6 ), using it to use the rolling method to press the adhesive tape solder 21 placed on the honeycomb base surface into the honeycomb core grid; Roller 5, lower roller 6, supporting plate 7, 4 locking plates 8, 4 compression nuts 9, and rocker arm 10; wherein: there are 4 guide posts 2, all of which are parallel to each other and vertically fixed on the On the base 1; the four guide posts 2 in the device are installed and fixed at the four corners of the base 1, and the upper end of each guide post 2 is threaded, and each guide post 2 is respectively sleeved with one guide post 2 from bottom to top. The spring 3 is also equipped with a pressure plate 4, and the upper end of the guide post 2 above the pressure plate 4 is also respectively arranged with a compression nut 9;

[0049] Four locking plates 8 are installed in the middle part above the base 1, and the two ends of the lower ro...

Embodiment 3

[0058] Such as Figure 1 to Figure 5 The shown method and its device are suitable for the presetting of fan-shaped honeycomb adhesive tape solder. In the device, the base (1) is made of ordinary steel, and its outer dimension is 156×140×45 (mm). There are 4 guide posts (2) mounting holes (15) and 2 symmetrical lower rollers processed on it. (6) semicircular slot A (13), 2 symmetrical mounting holes A (11) and 4 threaded holes A (12) for fixing the lock plate (8). It is mainly used for the installation and fixing of the whole device and the fixing of the guide post (2) and the lower roller (6).

[0059] The guide post (2) is made of high-quality steel, and its size is φ16 × 130 (mm)_____. Its one end is processed with threads, and the other end is processed with bosses (16). The boss 16 of each guide post 2 has an interference fit with the guide post (2) installation hole B (15) on the base (1), which is used for fixing the spring (3), guiding the pressure plate (4), and conn...

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Abstract

The invention relates to a method for preplacing adhesive tape brazing filler metal for honeycombs. The method comprises the step of pressing the adhesive tape brazing filler metal (21) that is placed on a honeycomb baseplane into honeycomb core grids with a special device by a rolling method. The special device consists of a base (1), guide posts (2), four springs (3), a pressing plate (4), an upper roller (5), a lower roller (6), a supporting plate (7), four locking plates (8), four compression nuts (9) and a rocker arm (10). The method further relates to a special device for preplacing the adhesive tape brazing filler metal for the honeycombs. The method and the special device are applicable to the sector honeycombs 22 and the circular honeycombs 30 in different core grid dimensions. The adhesive tape brazing filler metal 21 can be pressed into the honeycomb core grids without crushing the honeycombs, and the preplaced brazing filler metal is consistent in thickness and clean and is firmly bonded with the core grids, so that each core grid is provided with the adequate brazing filler metal, and good and stable brazing quality is achieved; and in addition, the brazing filler metal can be saved, the cost can be lowered, and the working efficiency can be improved by more than 2 times.

Description

technical field [0001] The invention relates to the technical field of engine honeycomb structure manufacture and repair, and in particular provides a new method and a special device for pressing adhesive tape solder into a honeycomb core grid. Background technique [0002] The honeycomb structure has been widely used in gas sealing devices for rotating parts and stationary parts in aero-engines, gas turbines and other products. The honeycomb is made by spot welding or laser welding with a wall thickness of 0.05-0.08mm and pressed into a series of 1 / 2 Regular hexagonal strips are connected to form a series of regular hexagonal core lattices. According to the requirements, the cell size is 0.8 (mm), 1.6 (mm), 3.2 (mm), 6.4 (mm), and the honeycomb shape is ring-shaped or sector-shaped. The honeycomb structure is a combination of honeycomb and shell. The honeycomb ring or the honeycomb segment is brazed with the shell to form a honeycomb structure. [0003] The brazing of ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K3/08
Inventor 孔庆吉杜静曲伸李文学
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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