Rapid sintering furnace for metallic oxide ceramic material and sintering process of rapid sintering furnace

Abstract

The invention relates to a rapid sintering furnace for a metallic oxide ceramic material and a sintering process of the rapid sintering furnace, which solves the problems of short service life, low productivity and an unstable process of rapid sintering equipment in the current industrial production. The rapid sintering furnace comprises a machine frame, and a hearth with a downward opening is arranged on the machine frame. The rapid sintering furnace is characterized in that a high temperature chamber, an intermediate temperature chamber and a low temperature chamber which communicate with each other are sequentially arranged in the hearth from top to bottom, the lower end of the low temperature chamber is open, a liftable fire-proof heat preservation platform pillar capable of stretchinginto from the lower end of the low temperature chamber is further arranged on the machine frame, and a carrying platform used for storing materials to be sintered is arranged at the upper end of thefire-proof heat preservation platform pillar. The sintering process realizes the use goals of rapid ignition lost of organic matters, sintering temperature gradient control, crystallization rate gradient control and stable control of sintering high temperature areas of the metallic oxide ceramic material, and ensures the intensity, permeability, crystalline volume fraction and crystallization uniformity of metallic oxides after sintering.

Description

technical field [0001] The invention belongs to the field of medical materials, and relates to a sintering technology for functional ceramic materials, in particular to a rapid sintering furnace for metal oxide ceramic materials and a sintering process thereof. Background technique [0002] Metal oxide ceramic materials, such as alumina and zirconia, are widely used in various fields because of their physical properties such as good hardness, corrosion resistance and wear resistance. In recent years, with the development of medical devices in my country, metal oxide ceramic materials such as alumina and zirconia have been increasingly used as bionic materials in human hard tissue substitutes, such as artificial teeth and artificial bones. In view of the fact that the human hard tissue substitute has extremely high requirements on the physical and biological characteristics of the material itself, such as hardness, toughness, wear resistance, and biocompatibility, even in the...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of short service life, low production capacity and unstable process of rapid sintering equipment in current industrial production, and provide a rapid sintering furnace for metal oxide ceramic materials and its sintering process

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