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Technology of Controlling the Thickness of Adhesive Bonded Layer Using Self-made Rubber Cover

A glue layer thickness and board control technology, which is applied in the field of glue layer thickness control process of aircraft skin and reinforcement board bonding, can solve the problem of large surface tolerance of skin and reinforcement board, uneven cooperation of skin and reinforcement board, The thickness of the glued adhesive layer varies greatly, and achieves the effects of easy promotion, weakening uneven pressure distribution, and low manufacturing cost.

Active Publication Date: 2019-04-09
AVIC SAC COMML AIRCRAFT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the gluing process of the middle panel of a certain type of aircraft empennage tip and flat tail stabilizer, due to the large tolerance of the skin and the stiffener, it is easy to cause uneven cooperation between the skin and the stiffener, resulting in The thickness of the adhesive layer between the middle skin and the reinforcement plate varies greatly, which exceeds the value required by the specification, resulting in the delay in the successful development of the part, which not only causes great economic losses, but also leads to customer dissatisfaction

Method used

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  • Technology of Controlling the Thickness of Adhesive Bonded Layer Using Self-made Rubber Cover
  • Technology of Controlling the Thickness of Adhesive Bonded Layer Using Self-made Rubber Cover
  • Technology of Controlling the Thickness of Adhesive Bonded Layer Using Self-made Rubber Cover

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Embodiment Construction

[0016] A process for using a self-made rubber cover to control the thickness of an adhesive layer, comprising the following steps:

[0017] 1) Making a pressure equalizing plate: place the reinforcing plate A1 at the pre-bonded skin 2, lay several layers of unvulcanized rubber 3 on the surface of the reinforcing plate, and lay a layer of dry rubber on the upper surface of the bottom first layer of the unvulcanized rubber 3. The area of ​​the carbon fiber fabric 4, the unvulcanized rubber 3 and the carbon fiber fabric 4 is larger than the upper surface area of ​​the reinforcing plate A1, and the excess parts around are laid flat on the upper surface of the pre-bonded skin 2; the vacuum bag 5 is sealed as a whole and moved to the autoclave , and then undergo curing treatment, the curing pressure is 310 ± 30KPa, the curing temperature is 130 ± 5 ° C, and the pressure equalizing plate 6 is formed after removing the reinforcing plate A1;

[0018] 2) Lay the adhesive film 7 on the p...

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Abstract

The invention relates to a process for controlling a thickness of a glued rubber layer by using a self-made rubber cover plate. The process comprises the following steps: 1) a balance plate is manufactured; 2) a rubber film is paved on a prebonded cover; then, a reinforcing plate is placed on the rubber film for buckling the balance plate; and the balance plate extends out around stripping cloth and a porous isolation film; 3) the balance plate is connected and positioned with a reinforcing plate by a pin; and 4) the integer in the steps 2) and 3) is sealed with a vacuum bag, and is shifted into a hot pressing tank; the pressure is applied to the top of the balance plate; the curing is performed by heating; and a cover glued layer with uniform thickness is obtained after curing. The process uses the rubber balance plate for realizing secondary uniform distribution of the pressure of the hot pressing tank, weakens the influence on the thickness of the rubber layer by matching between molding surfaces of the reinforcing plate and the cover compared with direct acting of the pressure on the reinforcing plate, and obtains the rubber layer with uniform thickness. The operation of using the balance plate is simple; the positioning is accurate; the self-inspection is convenient; the process and the result both achieve visible and controllable effects; and the product quality and the working efficiency are improved.

Description

technical field [0001] The invention relates to a process for controlling the thickness of an adhesive layer by using a self-made rubber cover plate, which is used for the thickness control process of the adhesive layer in the adhesive bonding of aircraft skins and reinforcing plates. Background technique [0002] During the gluing process of the middle wall plate of a certain type of aircraft tail wing tip flat tail stabilizer, due to the large tolerance of the skin and the reinforcing plate, it is easy to cause uneven coordination between the skin and the reinforcing plate, which leads to the bonding process. The thickness of the adhesive layer between the middle skin and the reinforcing plate is very different, which exceeds the required value of the specification, resulting in the delay in the successful development of the parts, which not only causes great economic losses, but also leads to customer dissatisfaction. SUMMARY OF THE INVENTION [0003] The technical prob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/34B29C70/44B29L31/30
CPCB29C70/342B29C70/44B29L2031/3085
Inventor 郭守玉李洪哲李营卢政斌金磊
Owner AVIC SAC COMML AIRCRAFT
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