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Composite material structural part with metal flange and preparation method thereof

A technology of composite materials and structural parts, used in flange connection, passing components, mechanical equipment, etc., can solve the problem of difficult to guarantee sealing performance, and achieve the effect of improving sealing performance, reducing weight, and ensuring accuracy requirements

Active Publication Date: 2018-08-24
中国船舶重工集团公司第七一二研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of viscose failure, its sealing performance is difficult to guarantee
Therefore, there are certain defects and risks in the technology of adopting the pure bonding scheme

Method used

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  • Composite material structural part with metal flange and preparation method thereof
  • Composite material structural part with metal flange and preparation method thereof
  • Composite material structural part with metal flange and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] refer to figure 1 As shown, the composite structural member 6 and the external structural member 1 are fixedly connected together by bolts 3, elastic gaskets 4 and nuts 5, and the O-ring 2 is made of fluororubber to play a sealing role.

[0035] refer to figure 2 As shown, the composite material structure 6 of the present invention is composed of metal flanges at both ends, a composite material body and an O-shaped sealing ring 2, and the composite material body is selected from a material that matches the sealing liquid and the service temperature. Type sealing ring 2 is pre-embedded in the sealing groove of the metal flange, and the material matching the composite material resin and curing temperature is selected. The connection method of the sealing ring connects the composite material structural part and the external structural part 1 together to achieve the functions of sealing and bearing.

[0036]Among them, the metal flange has two structural forms:

[0037]...

Embodiment 2

[0043] Example 2 is a further example.

[0044] The difference from Embodiment 1 is that the circular metal flange 62 and the end plate metal flange 72 are made of ordinary carbon steel Q235B.

Embodiment 3

[0045] Embodiment 3 is yet a further embodiment.

[0046] The difference from Embodiment 1 is that the annular metal flange 62 and the end plate metal flange 7272 are made of high-strength aluminum alloy.

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Abstract

The invention discloses a composite material structural part with metal flanges. The composite material structural part is composed of the two end metal flanges, a composite material body and O-shaped sealing rings; materials matched with sealing liquid and use temperature are selected by the composite material body, and a conical face, a plurality of fixing grooves and a sealing groove are sequentially arranged on at least one contact face of the two end metal flanges and the composite material body; the O-shaped sealing rings are embedded in the sealing groove, and the metal flanges are circular-ring metal flanges or end plate metal flanges; and the invention further discloses a preparing method of the composite material structural part with the metal flanges. The preparing method is suitable for the structural part high in specific strength and specific rigidity and particularly suitable for structural connecting parts with the requirements for high sealing performance, high bearing capacity and the like, the sealing effect is ensured, the bearing capacity is improved, and the requirement of the structural part for high specific strength and the high specific rigidity is met.

Description

technical field [0001] The invention belongs to the technical field of composite material application, and in particular relates to a composite material structural connector with a metal flange and a preparation method thereof. Background technique [0002] In some special applications, it is necessary to replace metal structural parts with composite material structural parts with high specific strength and high specific stiffness, while meeting the requirements of high sealing performance and high bearing capacity. [0003] For the existing composite material structural parts, according to the materials used, the structural schemes can be roughly divided into full composite material structural parts and composite material structural parts with metal flanges. [0004] For all-composite structural parts, the nail holes at the connection parts cut off the fibers, and the composite material itself is a brittle material, and the stress concentration at the edge of the hole is se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L23/032F16L23/16
CPCF16L23/032F16L23/16
Inventor 周勇郑军谢峰刘君
Owner 中国船舶重工集团公司第七一二研究所
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