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A silicon nitride based cermet material

A ceramic material, silicon nitride-based technology, applied in the field of silicon nitride-based cermet materials and their preparation, can solve the problems of poor universality of filter elements, and achieve the effect of good adhesion and strong universality

Active Publication Date: 2019-07-02
HEBEI COREFRA SILICON NITRIDE MATERIAL
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  • Summary
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Filter elements are also often applied to dust filtration, such as factory workshops, etc., and the patent application number 951932713 discloses a filter element, including a porous carrier layer, a fiber coating and a ceramic particle layer, and the fiber coating is applied on the porous carrier layer. , the ceramic particle layer is smeared on the fiber coating, the ceramic particle layer directly determines the fine filtration capacity, the current ceramic particle layer is prepared according to the environment that needs to be filtered and the corresponding particles are prepared, when the composition of dust particles in the filter environment sometimes occurs change, the filter elements of the prior art have poor versatility

Method used

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Embodiment Construction

[0016] A silicon nitride-based cermet material, which is mainly made of silicon nitride-based ceramic powder and chromium metal powder in a mass ratio of 100:10, wherein the silicon nitride-based ceramic powder includes a blank and a glaze, and the The mass ratio of blank and glaze is 100:5.

[0017] The raw material of the billet contains the following components in mass percentage: titanium carbide content is 4%, alkali metal oxide content is 4%, zirconium oxide content is 2.0%, vanadium oxide content is 0.3%, The oxide content of gallium is 0.05% and the oxide content of rare earth elements is 1.0%.

[0018] The raw material of the glaze contains the following components in mass percentage: the oxide content of iron is 1%, the oxide content of cobalt is 2%, the oxide content of alkali metal is 2%, and the oxide content of copper is 2%. 1.0%, the oxide content of gallium is 0.05%, the oxide content of indium is 0.05%, and the oxide content of rare earth elements is 1.0%.

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Abstract

The invention discloses a silicon nitride-based metal ceramic material. The silicon nitride-based metal ceramic material is mainly prepared by compounding a silicon nitride-based ceramic powder with achromium metal powder in a mass ratio of 100: (1 to 10), wherein the silicon nitride-based ceramic powder comprises a preform body and glaze, and the mass ratio of the preform body to the glaze is 100: (3 to 5).

Description

technical field [0001] The invention relates to a silicon nitride-based cermet material and a preparation method thereof. Background technique [0002] The filter element separates solid particles in liquid or gas, or fully contacts different material components to speed up the reaction time, which can protect the normal operation of the equipment or the cleanliness of the air. When the fluid enters the filter element with a certain specification filter, its impurities are blocked. , while clean fluid exits through the filter element. The liquid filter element makes the liquid (including oil, water, etc.) clean the polluted liquid to the state required for production and life, that is, to make the liquid reach a certain degree of cleanliness. [0003] Filter elements are also often applied to dust filtration, such as factory workshops, etc., and the patent application number 951932713 discloses a filter element, including a porous carrier layer, a fiber coating and a cerami...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C29/16C22C1/05C22C1/10
CPCC22C1/051C22C29/005C22C29/16
Inventor 卢晔
Owner HEBEI COREFRA SILICON NITRIDE MATERIAL
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