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Shielding method of complex spraying shielding region of spacecraft structural plate

A spacecraft structure and complex technology, applied in the direction of surface coating liquid devices, coatings, spraying devices, etc., can solve the problems of unsuitable spacecraft structural plates, etc., to reduce redundant materials, meet high reliability, and low cost Effect

Active Publication Date: 2015-08-19
SHANGHAI INST OF SATELLITE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the automobile and aircraft industries are sprayed according to the size of the masking clothing according to their appearance design, and the decoration industry uses masking films to cover large areas, but this is not suitable for spacecraft structural panels

Method used

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  • Shielding method of complex spraying shielding region of spacecraft structural plate
  • Shielding method of complex spraying shielding region of spacecraft structural plate

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Experimental program
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Embodiment

[0047] First, coordinate with the designers to obtain the 3D PROE diagram of the stand-alone and structural parts in the corresponding area of ​​the spacecraft structural plate, and project it to the one-way 1:1, obtain the outer contour of the installation surface of the stand-alone and structural parts and the projection of the installation hole, and draw CAD Two-dimensional map. According to the design requirements, the complex outer contour of the installation surface of the stand-alone machine and structural parts is expanded by 1-2mm on one side. Use HP DESIGNJET plotter for 1:1 drawing. Clean the surface of the product with white silk cloth or degreasing white gauze dipped in acetone or absolute ethanol. Remove the smooth film on the back of the protective formwork, position it according to the fastening screws, and carry out spraying and masking. Use a squeegee to roll along the edge of the masking film to ensure that the edge of the masking film is firmly attached. ...

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Abstract

The invention discloses a shielding method of a complex spraying shielding region of a spacecraft structural plate. The spraying shielding region of the spacecraft structural plate is divided into diversified unique type regions (single machine and structural piece installation faces) and unitary type regions (threaded holes and unthreaded holes), and different spraying shielding methods are adopted in the two regions. The accuracy and reliability are high, materials can be taken conveniently, the manufacturing method is simple, the phenomena like paint seepage and burrs on edges of the shielding region are avoided, redundancy is reduced, the performance is reliable, the operation is convenient, the manufacturing cost is low, it is guaranteed that the shielding positions and the shielding sizes of the complex shielding region are accurate, and the design requirements of high reliability of spacecrafts are satisfied.

Description

technical field [0001] The invention relates to the technical field of painting, in particular to a shielding method for a complex spray shielding area of ​​a spacecraft structural plate. Background technique [0002] As a special kind of thin film material, organic thermal control coating is used in the thermal control field of spacecraft. Because of its simple construction, it can be used on metal or non-metallic substrates, and has good adhesion performance, so it has gained more and more attention in the field of spacecraft thermal control. more and more widely used. However, in spraying construction, it is often necessary to spray on specific parts, and the parts that do not need to be sprayed need to be covered to avoid paint bleeding, so as to ensure the connection accuracy of the single machine and structural parts and avoid spraying to other parts to affect the appearance. [0003] Through long-term practical experience, the spraying masking area on the spacecraft ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/32B05B15/04
Inventor 陈砚朋季琨隋微微张学迅郑义
Owner SHANGHAI INST OF SATELLITE EQUIP
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