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Preparation process of aluminum oxide for high-density bulletproof ceramic

A preparation process and alumina technology, applied in the field of high-density alumina preparation technology, can solve problems such as difficulties, and achieve the effects of simple operation, high dry-pressed density, and reduced content

Inactive Publication Date: 2018-07-06
HENAN CHANGXING IND CO LTD
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Problems solved by technology

However, due to the excellent physical and chemical properties of alumina ceramics, it is very difficult to process

Method used

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0024] The preparation process of alumina for high-density bulletproof ceramics specifically includes the following steps:

[0025] (1) Use flame photometry to detect the sodium content in the alumina powder to be processed, and select the alumina powder whose sodium content does not exceed 0.5% of the total mass;

[0026] (2) For the alumina powder selected in the above step, remove the iron in the alumina powder by wet iron removal;

[0027] (3) Select a clean high-aluminum sagger and delithiate it;

[0028] (4) Add an appropriate amount of compound mineralizer to the alumina powder after iron removal, mix evenly, and put it into a high-alumina sagger;

[0029] (5) Send the high-alumina sagger containing alumina powder into the tunnel kiln for calcination. During the high-temperature cal...

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Abstract

The invention relates to a preparation process of aluminum oxide for high-density bulletproof ceramic and provides a preparation process of high-density aluminum oxide. High-density aluminum oxide micro-powder capable of serving as a raw material of the bulletproof ceramic can be prepared through the steps of material selection, sodium removal, iron removal, calcination, sorting, grinding, homogenization, pulverization, detection of granularity and dry pressing density and the like. The preparation process provided by the invention has the advantages that the process steps are simple and operation is convenient, and the product is pure and free of impurities and thus meets the requirement for serving as the raw material of the bulletproof ceramic.

Description

technical field [0001] The invention relates to the technical field of alumina ceramics, in particular to a preparation process of high-density alumina. Background technique [0002] The victory or defeat of modern warfare is still to solve the problem of spears and shields. Guns, cannons, and missiles are the spears, and bulletproof armor is the shield. In anti-violence, anti-terrorist struggles and modern large-scale wars, bulletproof armor can effectively reduce casualties, improve combat effectiveness, and increase victory factors, so the research and development of bulletproof armor is very necessary. [0003] From the perspective of the historical development of armor materials, from traditional metal materials (steel, aluminum) to current ceramic materials and composite materials (polymer-based, metal-based, ceramic-based), armor materials have been moving towards lightweight and efficient The light weight and high efficiency of the armor system are crucial to improv...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/622C04B35/626
CPCC04B35/10C04B35/622C04B35/62605C04B2235/77C04B2235/95
Inventor 杨彦军王霄楠李民菁邵梅珊沈乐孙志昂
Owner HENAN CHANGXING IND CO LTD
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