Ceramic body, preparation method and drying method of ceramic blank

A technology of ceramic body and drying method, applied in ceramic molding machines, manufacturing tools, etc., can solve problems such as cracking and ceramic body deformation, and achieve the effects of simple process, reduced internal stress, and avoidance of deformation and cracking

Active Publication Date: 2017-10-24
河北盛平电子科技有限公司
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Problems solved by technology

[0005] In view of this, in order to solve the problem of deformation and cracking of the ceramic body during the drying process,

Method used

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  • Ceramic body, preparation method and drying method of ceramic blank
  • Ceramic body, preparation method and drying method of ceramic blank
  • Ceramic body, preparation method and drying method of ceramic blank

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[0028] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0029] figure 1 It is a flow chart of an embodiment of a method for preparing a ceramic body by injection molding.

[0030] With a particle diameter of 0.8μm and a specific surface area of ​​8.32m 2 / g α-alumina ceramic powder as raw material, ethylene glycol diglycidyl ether (EGDE) and 3-diaminodipropylamine as gelling agent an...

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Abstract

The invention discloses a ceramic body, a preparation method and a drying method of a ceramic blank and solves the problem that the ceramic blank deforms and cracks in a drying process. The drying method of the ceramic blank comprises the following steps of: putting a bottom water absorbing material in the bottom of a cavity of a drying box; putting a blank on the bottom water absorbing material; putting a top water absorbing material on the blank; applying a uniform pressure to the top water absorbing material; and hermetically drying the blank. The invention also discloses the preparation method of the ceramic body. The preparation method comprises the following steps of: performing gelcasting on ceramic powder to form the ceramic blank; drying the ceramic blank by employing the drying method; heating the ceramic blank to remove organic matters; and performing high-temperature sintering. The invention also discloses the ceramic body which is prepared by employing the preparation method. According to the method and product disclosed by the invention, the water content of the blank is reduced to a great extent, the moisture gradient of the blank in the drying process is reduced to reduce the stress and strain so as to prevent the ceramic blank from cracking and inhibit deformation of the ceramic blank, and the process is simple and the cost is low.

Description

technical field [0001] The invention relates to the field of ceramic material preparation, in particular to a method for preparing a ceramic body and a method for drying the body. Background technique [0002] Injection molding is a very important ceramic molding method, which is widely used. All ceramic objects with complex shapes, irregularities, thin walls, large volumes and loose size requirements can be used in injection molding technology. [0003] Injection molding is an organic combination of traditional ceramic technology and polymer chemistry, and flexibly applies the polymer monomer polymerization method to the ceramic molding process. By preparing ceramic slurry with low viscosity and high solid phase content, the net size, Forming of high-strength, high-density ceramic bodies. The basic principle of this process is to add organic monomers to ceramic slurry with low viscosity and high solid phase content. Under the action of catalysts and initiators, the organic ...

Claims

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Application Information

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IPC IPC(8): B28B11/24B28B1/26C04B35/10C04B35/622
Inventor 徐国胜
Owner 河北盛平电子科技有限公司
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