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Repairing method of low temperature tank heat insulation layer

A low-temperature storage tank and thermal insulation layer technology, which is applied in the field of repairing the thermal insulation layer of low-temperature storage tanks, can solve problems such as difficult to ensure rapid curing, difficult process, and difficult to achieve repairing effects, and achieve simple construction, no need for solvents, and high bonding strength high effect

Inactive Publication Date: 2015-01-14
SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the epoxy-polyamide adhesives and polyurethane adhesives used in the above methods are two-component adhesives. The on-site repair construction process is difficult, and it is difficult to ensure the requirements of rapid curing, "instant repair and use" and excess control. It is difficult to achieve the expected repair effect

Method used

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  • Repairing method of low temperature tank heat insulation layer
  • Repairing method of low temperature tank heat insulation layer
  • Repairing method of low temperature tank heat insulation layer

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Embodiment Construction

[0024] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar extensions without violating the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0025] Secondly, the present invention is described in detail by means of schematic diagrams. When describing the embodiments of the present invention in detail, for convenience of explanation, the schematic diagrams are only examples, which should not limit the protection scope of the present invention.

[0026] In order to meet the requirements of on-site construction, ready-to-use, -20 ℃ ~ 50 ℃ foam plastic paste can be applied, fast curing, and ultra-low temperature resistance for repairing the damaged insulation layer o...

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Abstract

The invention provides a repairing method of a low temperature tank heat insulation layer. The method is characterized in that the heat insulation layer is repaired by adopting an ultralow temperature resistant pressure sensitive adhesive. The developed ultralow temperature resistant pressure sensitive adhesive is used in a quick repairing method of the damaged heat insulation layer of the low temperature storage of a new generation carrier rocket. The method has the advantages of no need of a solvent, no need of onsite preparation of the adhesive, clean field, simple construction, and high bonding strength of the pressure sensitive adhesive at an ultralow temperature; and the ultralow temperature resistant pressure sensitive adhesive has the advantages of no solvent, low curing temperature, short curing time, and no influences on the performances of the heat insulation layer and environmental protection of the curing process.

Description

[0001] technical field [0002] The invention relates to the field of launch vehicles, in particular to a method for repairing the heat insulation layer of a low-temperature tank of a launch vehicle. Background technique [0003] China's new generation of launch vehicles use liquid oxygen / kerosene low-temperature fuel. In order to reduce the evaporation of low-temperature fuel and ensure that the temperature of liquid oxygen meets the normal operation requirements of the engine during the entire launch and flight, the low-temperature fuel storage tank must be insulated with a thermal insulation layer. Including foam plastics and protective layer two materials. [0004] The foam plastic in the insulation layer is a brittle material. After the coating is completed, collisions will inevitably occur during the later transportation and transshipment process, resulting in damage to the foam plastic, thereby affecting the insulation performance of the insulation layer. Therefore, ...

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Application Information

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IPC IPC(8): F17C1/12
Inventor 南博华熊艳艳尤登飞冯冠祥何腾锋龚菊贤赵萧
Owner SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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