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Welding method for non-coating sides of airship capsule material

A processing method and non-coating technology, which is applied in the field of welding and processing of aircraft capsule materials, can solve problems such as difficult sticking, difficulty in ensuring processing quality, and inability to control the ambient temperature and humidity of large-scale aircraft processing plants.

Inactive Publication Date: 2012-11-21
HUNAN AEROSPACE ELECTROMECHANICAL EQUIP & SPECIAL MATERIAL INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the sewing process is adopted, stress concentration will occur when the sewing stitches are under the high pressure of the capsule body, which will reduce the overall strength of the capsule body and the airtightness of the material will be reduced; if the bonding process is adopted, the glue will be affected by the environment It is too large to control the ambient temperature and humidity of the large-scale airship processing workshop when processing large capsules. It is not easy to stick flat and the bonding strength cannot meet the design requirements, and the processing quality is difficult to guarantee.

Method used

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Embodiment Construction

[0016] In the research and development of the tethered airship of our unit, the method of the present invention is successfully used to complete the processing of the product. The air tightness of the welded part of the non-coated surface of the product is no more than 10% lower than that of the airbag material, and the tensile strength is comparable to that of the airbag. The material is reduced by no more than 10%. Specific steps are as follows:

[0017] 1. Surface treatment of non-coated surface of composite materials

[0018] The main airbag material used in this tethered airship is aramid polymer composite material. The non-coated surface of the material needs to be surface treated before coating the adhesive. The surface treatment includes: dip cotton with alcohol to remove surface dust, ethyl acetate Grease and acetone to remove surface oil stains, and ultrasonically activate the bonding surface. After the material is surface treated, it is transferred to the next pro...

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Abstract

The invention discloses a welding method of an airship capsule material. The non-coating side of a single-sided coating high-polymer composite material is treated, adhesive is coated on the non-coating side, and accordingly the non-coating side has welding performance. The proper adhesive and coating process are selected, so that the difficulty in welding of the non-coating side of the high-strength single-sided coating high-polymer composite material of the large airship capsule is overcome, and requirements of products for airtightness, strength, weatherability, deflection resistance and the like of welding parts can be met.

Description

technical field [0001] The invention relates to a welding processing method for an airship capsule material. Background technique [0002] The airship's main airbag is designed to be spliced ​​with multiple flaps due to its large size. The material is usually made of polymer composite materials. The coating of this type of material not only has high air tightness, excellent weather resistance, high resistance In addition to flexural properties, it also has the machinability of high-frequency welding and hot-air welding, so that the polymer composite material can be spliced ​​into the airship by high-frequency welding and hot-air welding, and meets the various requirements of the airship capsule. technical specification requirements. [0003] In order to ensure the structural strength and reduce weight of the airship, large airships usually use single-sided coated polymer composite materials as the main airbag material. Since the non-coated surface of this type of single-sid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/52B29C65/02B29C65/72
Inventor 金前文唐乾刘益杰刘立英梁安成夏昊陈有光
Owner HUNAN AEROSPACE ELECTROMECHANICAL EQUIP & SPECIAL MATERIAL INST
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