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Process for controlling thickness of glued rubber layer by using self-made rubber cover plate

A glue layer thickness and board control technology, which is applied in the field of glue layer thickness control technology 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: 2017-04-26
AVIC SAC COMML AIRCRAFT
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  • 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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  • Process for controlling thickness of glued rubber layer by using self-made rubber cover plate
  • Process for controlling thickness of glued rubber layer by using self-made rubber cover plate
  • Process for controlling thickness of glued rubber layer by using self-made rubber cover plate

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Embodiment Construction

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

[0017] 1) Make the pressure equalizing plate: Place the reinforcing plate 1 on 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 first layer at the bottom of the unvulcanized rubber 3. The areas of carbon fiber fabric 4, unvulcanized rubber 3 and carbon fiber fabric 4 are larger than the upper surface area of ​​reinforcing plate 1, and the excess parts around are tiled on the upper surface of pre-bonded skin 2; the vacuum bag 5 is sealed as a whole, and moved to the autoclave , and then after curing treatment, the curing pressure is 310±30KPa, the curing temperature is 130±5°C, and the reinforcing plate 1 is removed to form a pressure equalizing plate 6;

[0018] 2) Spread the adhesive film 7 on the pre-adhesive skin ...

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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 technology for controlling the thickness of the glued glue layer by using a self-made rubber cover plate, which is used for the glued thickness control technology of the glued bond between aircraft skin and reinforcement board. Background technique [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 reinforcement plate, it is easy to cause uneven cooperation between the skin and the reinforcement plate, 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. Contents of the invention [0003] The technical problem to be solved by the invent...

Claims

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Application Information

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Patent Type & Authority Applications(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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