Electrostatically formed film reflective surface splicing mold and electrostatically formed film reflective surface splicing method
A technology of splicing molds and electrostatic forming, applied in electrical components, antennas, etc., can solve problems such as limiting large-diameter film reflective surfaces, and achieve the effect of simple operation and reliable principle
Inactive Publication Date: 2018-05-01
XIDIAN UNIV
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Problems solved by technology
[0004] Due to the immature development of large-area rotary curved film production technology, the development of the overall forming of large-diameter film reflective surfaces is limited. At present, the production of large-diameter film reflective surfaces is realized by splicing.
Method used
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Embodiment Construction
[0048] The deployable antenna with electrostatically formed film reflective surface needs to achieve higher surface accuracy, which cannot be achieved only through adjustment, and can only be achieved by making a pre-formed paraboloid with higher accuracy. Making a high-precision splicing mold and a reasonable manufacturing method are the prerequisites for making a high-precision thin film reflective surface. The design scheme of the film splicing mold is shown in the following content: The following takes the production of the principle prototype of the 2m film reflector antenna as an example to illustrate.
[0049]The large-diameter thin film reflective surface is made by splicing flat diaphragms on the mould. The perfect lamination of the diaphragm and the mold is the key to making a high-precision thin film reflective surface. According to this, the present invention uses the principle of vacuum negative pressure to adsorb the thin film Provided are a mould for splicing re...
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Abstract
The invention belongs to the technical field of radar antennas, and particularly provides an electrostatic figuration thin film reflecting surface splicing mold and an electrostatic figuration thin film reflecting surface splicing method. The method comprises the following steps: firstly manufacturing a high-precision reflecting surface splicing mold using a vacuum adsorption principle, wherein the high-precision reflecting surface splicing mold is a thin film reflecting surface splicing system MRAS and consists of an upper parabolic surface, a lower sealing cover and an hexagon socket head cap screw; and then manufacturing preformed high-precision thin film reflecting surfaces with a certain focal-length-to-diameter ratio on this basis. The electrostatic figuration thin film reflecting surface splicing mold is reliable in principle and easy and convenient to operate; the complete method for manufacturing large-aperture thin film reflecting surfaces, which comprises the following steps of reflecting surface mold designing, splicing, manufacturing and the like, is provided; by the method, a high-precision preformed paraboloid can be manufactured; and a technical support is provided for preparation of a principled sample machine.
Description
technical field [0001] The invention belongs to the technical field of radar antennas, and relates to the production of an expandable antenna film reflective surface on a space-borne electrostatically formed film reflective surface, the design of a splicing mold and a bonding method, in particular to a splicing die for an electrostatically formed film reflective surface and splicing of an electrostatically formed film reflective surface The method is used to manufacture a high-precision thin-film reflective surface with a certain focal-diameter ratio. Background technique [0002] With the rapid development of aerospace science and technology activities, higher and higher requirements are put forward for spaceborne deployable antennas, which are manifested in two aspects of large aperture and high precision. For example, NASA's next-generation spaceborne weather radar requires an antenna with a diameter of 35m and a frequency of 35GHz, and an on-orbit surface accuracy of 0.1...
Claims
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IPC IPC(8): H01Q15/14H01Q15/16
CPCH01Q15/141H01Q15/16
Inventor 姜文明杜敬利谷永振秦东宾张逸群张树新杨癸庚李军谢靓
Owner XIDIAN UNIV