Method for preparing quartz composite ceramic antenna housing from PTFE-coated nano magnetic spheres

Abstract

The invention discloses a method for preparing a quartz composite ceramic antenna housing from PTFE-coated nano magnetic spheres. The method comprises the following steps: putting the PTFE-coated nano magnetic spheres and a workpiece into a vacuum dipping barrel, and sealing the vacuum dipping barrel; respectively arranging an upper electromagnetic chuck and a lower electromagnetic chuck at the upper end and the lower end of the vacuum dipping barrel, and arranging a circumferential electromagnetic chuck on the outer wall of the vacuum dipping barrel; and accelerating the flow of the silica sol by the PTFE-coated nano magnetic spheres to acceleratet the compounding of an outer cover, shorten the compounding time and increase the working efficiency. The flowing of the silica sol can enable the silica sol to fully permeate into internal pores of the outer layer cover, so that the interior of the woven body is fully mixed, and the compounding uniformity of the product is ensured; and an intelligent operation system can be adopted to control the electromagnetic chuck, manual operation is not needed, manpower is saved, and digital production and construction are met. The method solves the problem of low compounding efficiency of the outer layer cover caused by poor fluidity of the silica sol, improves the utilization rate of the silica sol, and reduces the loss of raw materials.

Description

technical field [0001] The invention belongs to the technical field of high-efficiency densification composite molding of quartz ceramic materials for aerospace, in particular to a method for preparing a quartz composite ceramic radome. Background technique [0002] In the new model missile, the radome provides a good working environment for the missile head in the harsh flight environment. As the main material of the radome, the outer cover is prepared from the braided body of the outer cover through compounding, grinding, machining and other means, among which compounding is the most important process in the forming of the outer cover. The composite of the outer cover is prepared by the sol-gel method, and the special low metal ion silica sol is used for the composite. The silica sol has low solid content and poor fluidity. It takes multiple composites to achieve the specified density. At the same time, the uniformity of each composite is different. High, and will change ...

AI Technical Summary

Problems solved by technology

The composite of the outer cover is prepared by the sol-gel method, and the special low metal ion silica sol is used for the composite. The silica sol has low solid content and poor fluidity. It takes multiple composites to achieve the specified density. At the same time, the uniformity of each composite is different. High, and will change the particle size of silica sol, in order to ensure product performance, silica sol that can be used multiple times in theory can only be used 1-2 times in the actual compounding process, and the loss of composite raw materials is large

[0003] Due to the low solid content of silica sol and poor fluidity, the outer cover needs to be compounded and formed many times. The whole compounding and forming takes more than two months, which greatly increases the labor cost and material cost.

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