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Partitioned sticking and bonding method of large-scale metal or composite shell plate and industrial rubber

A composite material, large-scale technology, used in metal processing and other directions, can solve the problems of low connection strength, poor bonding performance, peeling of the cover, etc., to improve the quality and strength of interface bonding, improve interface bonding strength, reduce The effect of interfacial porosity

Inactive Publication Date: 2019-04-19
NAVAL UNIV OF ENG PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the above scheme, since the metal or composite material shell and the sound-permeable rubber belong to two different materials, the performance is quite different. Under the vacuum forming process, the bonding performance of the two is poor, and there is no suitable adhesive to make The two are closely connected
In addition, the rubber itself has high elasticity and the structure body may have a large curvature, which will easily lead to poor quality of cooperation between the structure and the rubber, and low connection strength, resulting in peeling or even falling off of the cover during service, which seriously affects the use of the structure. Functional characteristics and service life, causing immeasurable losses

Method used

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  • Partitioned sticking and bonding method of large-scale metal or composite shell plate and industrial rubber
  • Partitioned sticking and bonding method of large-scale metal or composite shell plate and industrial rubber
  • Partitioned sticking and bonding method of large-scale metal or composite shell plate and industrial rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The invention will be described in detail below in conjunction with specific embodiments.

[0029] Such as figure 1 As shown, the present invention is used to bond a large-scale metal or composite material shell plate with curvature and a rubber plate into a unified whole, and its specific steps include:

[0030] Step 1. Prepare a single-sided FRP rubber plate 3 that has a regular shape and can fit each other. The single-sided FRP rubber plate 3 is made by vulcanizing a 0.2-0.8mm thick FRP sheet on one side of the rubber plate. The thickness of the single-sided FRP rubber plate 3 15-25mm, and the hardness of the resin used for forming the FRP sheet should be equivalent to that of rubber;

[0031] Step 2. Bonding groove treatment, specifically refers to opening uniform bonding grooves on one side of the vulcanized FRP surface of the rubber sheet, the bonding groove spacing A is 40-100mm; the bonding groove width B is 2-5mm; the bonding groove width B is 2-5mm; The groo...

Embodiment 2

[0040] This embodiment is basically the same as Embodiment 1, the difference is:

[0041] (1) The shell plate of the structure is a metal curved plate, and the material is 45# steel;

[0042] (2) Groove one side of the single-sided FRP rubber plate, the groove spacing is 40mm, the groove width is 5mm, and the groove depth is 1mm. In the specific implementation process, the groove spacing is calculated through the following steps:

[0043] 2.1 Establish a local model, the surface profile of the shell plate has a local curvature radius of R 2 , the local radius of curvature of the rubber plate is R 1 , the accuracy of the surface fluctuation is K, the groove spacing is A, and other dimensions are shown in the figure, such as figure 2 shown.

[0044] 2.2 According to figure 2 Calculate slot spacing as shown, and

[0045]

[0046]

[0047] Combining the above formulas, we get

[0048] The bending degree of each rubber vulcanized composite shell plate 1 is measured...

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Abstract

The invention belongs to the field of composite structures, in particular to a partitioned sticking and bonding method of a large-scale metal or composite shell plate and industrial rubber. Accordingto the method, the connecting process of a rubber plate and a composite shell in a fairing manufacturing process is converted into the connecting process of glass and composite materials, the connecting and fixing difficulty is reduced, the fixing effect is increased, and the overall performance after the fairing is installed is improved; slotting treatment is performed, so that the stress deformation of a single-side vulcanized rubber glass plate is reduced, and additionally, a diversion channel is formed; the vacuum forming efficiency and the connecting strength of the connecting surface areincreased, so that the rubber plates can be integrally and evenly fixed to the surface of the fairing; and resin materials between the rubber plates are removed after vacuum forming, sealant is filled, and the sealant has good water resistance and adhesion with rubber, so that falling is prevented, water is prevented from entering, and a protective layer is formed.

Description

technical field [0001] The invention belongs to the application field of bonding of structures and industrial rubber, and in particular relates to a block-by-block sticking and bonding method of a large-scale metal or composite material shell plate and industrial rubber. Background technique [0002] In many structural application fields, in order to improve the vibration and noise reduction functional characteristics and impact resistance of the structure body, the designer proposes to lay a rubber layer on the outer layer of the structure shell. However, for the above scheme, since the metal or composite material shell and the sound-permeable rubber belong to two different materials, the performance is quite different. Under the vacuum forming process, the bonding performance of the two is poor, and there is no suitable adhesive to make The two are closely connected. In addition, the rubber itself has high elasticity and the structure body may have a large curvature, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/52B26D3/06
CPCB26D3/06B29C65/52
Inventor 梅志远陈国涛李华东周振龙高海昌
Owner NAVAL UNIV OF ENG PLA
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