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Light-weight die for high-precision large-sized antenna for radio astronomy and manufacturing method thereof

A high-precision, lightweight technology, applied in the field of lightweight molds and their manufacturing, can solve problems such as variation and overweight precision, and achieve the effects of reducing mold weight, ensuring overall rigidity, and fast processing speed

Inactive Publication Date: 2016-04-06
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two points have brought some difficult problems to radio antennas using traditional steel structures, such as overweight or poor accuracy, etc.

Method used

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  • Light-weight die for high-precision large-sized antenna for radio astronomy and manufacturing method thereof
  • Light-weight die for high-precision large-sized antenna for radio astronomy and manufacturing method thereof
  • Light-weight die for high-precision large-sized antenna for radio astronomy and manufacturing method thereof

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Experimental program
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Effect test

Embodiment Construction

[0027] Below, combine Figure 1-Figure 3 , the present invention will be further described.

[0028] A lightweight mold for a high-precision large-scale radio antenna, which is composed of multiple mold units spliced ​​together, is characterized in that: the mold unit includes a mold surface 1 and a rigid structure 2 for supporting the mold surface, and the rigid structure 2 includes A steel frame 4 and a plurality of steel partitions 3, the plurality of steel partitions 3 are vertically fixed on the upper surface of the steel frame 4 and the upper surfaces of the plurality of steel partitions 3 match the contour of the corresponding mold surface 1.

[0029] Wherein, the mold profile 1 includes a profile square tube layer 5, a glass fiber reinforced plastic layer 6, and a resin layer 7 arranged sequentially from bottom to top; the profile square tube layer 5 is composed of a plurality of closely tiled square tubes successively, and the profile The lower surface of the square ...

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Abstract

The invention discloses a light-weight die for a high-precision large-sized antenna for radio astronomy and a manufacturing method thereof. The light-weight die consists of a plurality of die units, wherein each die unit comprises a die molding surface and a rigid structure used for supporting the die molding surface; each rigid structure comprises a steel frame and a plurality of steel diaphragms; each die molding surface comprises a molding surface square pipe layer, a glass fiber reinforced plastics layer and a resin layer; each resin layer adopts epoxy tooling board or machinable plastic pasting; a high-precision molding surface of each die unit is realized by machining; the airtightness of the die is realized by spraying gel coat on non-antenna areas of the resin layers; the die splicing is realized by center line positioning and high-precision adjustment; sealing grooves among the die units are filled and leveled up by adopting resin pasting; and the manufacturing of the high-precision large-sized antenna for radio astronomy is realized.

Description

technical field [0001] The invention relates to a lightweight mold for a high-precision large-scale radio antenna and a manufacturing method thereof. Background technique [0002] Radio antennas are usually deployed in arid and dry climate areas with little rain. Temperature resistance, weather resistance, and thermal deformation are the main challenges for electric antenna materials. At the same time, in order to broaden the effective frequency band of radio antennas, it is generally necessary to increase the size of radio antennas. The above two points have brought some difficult problems to radio antennas using traditional steel structures, such as overweight or poor accuracy. [0003] Composite materials have all the properties required for high performance, low cost, high stiffness, light weight, good thermal stability, and high surface precision required by radio telescope antennas. Therefore, the antenna reflector and its mold made of it are not only light in weight,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/00B29C33/38B29C70/44
CPCB29C33/00B29C33/3842B29C70/44B29C2033/385
Inventor 赵均红郑元鹏张毅李金良王庆东杜彪周利峰吴基祥张伟明王海东金超王建宅刘利文马国靖
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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