Waveguide filter blank body forming mold and its technology

Abstract

The invention discloses a forming mould for a waveguide filter green body. The forming mould comprises a middle mould, an upper mould, a lower mould and a lower mould core rod, and further comprises an upper mould core rod, wherein a mould cavity is arranged in the middle mould; and the upper mould and the lower mould are separately arranged above and below the middle mould. The forming mould is characterized in that after the lower mould core rod passes through the lower mould and extends into the mould cavity, one part of the lower mould core rod gets out of the mould cavity and extends intothe upper mould; the upper mould core rod passes through the upper mould and then extends into the mould cavity; and the middle mould, the upper mould, the lower mould, the upper mould core rod and the lower mould core rod are connected to a driver, and can independently ascend or descend under driving of the driver. The invention further discloses a forming process for the waveguide filter greenbody. The forming mould and process for the waveguide filter green body disclosed by the invention is used for dry-pressing and forming a ceramic medium waveguide filter green body, overcomes the problems that green body finished products have unfilled corners, cracks and even breakage, and the problem that blind holes cannot be formed in opposite two surfaces of the green body in the prior art,and can greatly increase the yield of the formed green body.

Description

technical field [0001] The present invention relates to the technical field of embryo body dry pressing, and relates to a molding process for dry pressing ceramic powder into an embryo body, in particular to a waveguide filter embryo body forming process, and also to a waveguide filter embryo body forming mold . Background technique [0002] The ceramic dielectric filter is to print the filter circuit on the ceramic body to realize the electrical performance of the filter, and the molding of the ceramic body is a very important process link. Different from the existing ceramic dielectric filter, the ceramic dielectric waveguide filter has a very obvious difference both in the size of the body and in the structure: the body of the existing ceramic dielectric filter is a cuboid structure, which penetrates the thickness of the cuboid ( Or height) has a row of through holes in the direction. The body of the ceramic dielectric waveguide filter is a cuboid structure, and there a...

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Problems solved by technology

[0015] The technical problem to be solved by the present invention is to provide a waveguide filter blank body forming mold, which is used for dry pressing the ceramic dielectric waveguide filter blank body, so as to overcome the problems of missing corners, cracks and even breakage of the finished blank body, and the problems in the prior art The problem that blind holes cannot be formed on the opposite surfaces of the embryo body can greatly improve the yield of the formed embryo body

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