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Silicon carbide tundish

A silicon carbide and tundish technology, applied in the field of refractory materials, can solve the problems of refractory material quality decline, silicon carbide tundish damage, and lower yield rate, so as to achieve the effect of ensuring the yield rate

Active Publication Date: 2015-05-20
长兴鑫宇耐火材料有限公司
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AI Technical Summary

Problems solved by technology

[0002] Silicon carbide tundish is a commonly used item in the production of refractory materials. In the actual production process, due to various reasons, the silicon carbide tundish will be damaged. If it is not found and replaced in time, it will easily cause the quality of refractory materials to decline. reduce

Method used

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Embodiment Construction

[0010] A silicon carbide tundish, including a body and an alarm layer, the body is composed of silicon carbide, yttrium oxide, aluminum oxide and boron carbide, wherein the weight percentage of silicon carbide is 80% (also can be 75%, 85% or 75% Other values ​​in %-85%), the weight percentage of boron carbide is 3% (also can be 2%, 5% or other values ​​in 2%-5%), the weight percentage of yttrium oxide is 7% ( Also can be 5%, 10% or other values ​​in 5%-10%), the weight percentage of Al2O3 is 10% (also can be other values ​​in 5%, 15% or 5%-15%) value); the alarm layer is set in the body, when the body is in a complete state, the alarm layer is completely covered by the body, the alarm layer includes the surface layer of high temperature resistant plastic, the high temperature resistant plastic is polyimide, polyimide can work stably for a long time In a high temperature environment, a cavity is provided in the surface layer, the cavity wall of the cavity is a heat insulation l...

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Abstract

The invention discloses a silicon carbide tundish, belongs to the field of fire-resistant materials, and solves the problem that breakage of the silicon carbide tundish is not easily and timely found. The silicon carbide tundish comprises a body and an alarm layer, the body comprises, in weight percent, 75%-85% of silicon carbide, 2%-5% of boron carbide, 5%-10% of yttrium oxide and 5%-15% of aluminum oxide, and the alarm layer is arranged in the body. When the body is complete, the body completely covers the alarm layer, the alarm layer comprises a surface layer made of high-temperature-resistant plastics, a cavity is formed in the surface layer, a thermal insulating layer is arranged on the wall of the cavity, the inside of the cavity is filled with ammonia water, alarm information can be provided when the cavity breaks, staff is reminded of timely replacing the silicon carbide tundish, and the yield of the fire-resistant materials is ensured.

Description

technical field [0001] The invention relates to the field of refractory materials, in particular to a silicon carbide tundish. Background technique [0002] Silicon carbide tundish is a commonly used item in the production of refractory materials. In the actual production process, due to various reasons, the silicon carbide tundish will be damaged. If it is not found and replaced in time, it will easily cause the quality of refractory materials to decline. reduce. However, the silicon carbide tundish is often placed in a high-temperature furnace, and even if it is damaged, it is not easy to be found. Contents of the invention [0003] The purpose of the present invention is to provide a silicon carbide tundish that can provide alarm information when it is damaged. [0004] In order to achieve the above object, the present invention adopts the following technical scheme: a silicon carbide tundish, including a body and an alarm layer, the body is composed of silicon carbid...

Claims

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Application Information

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IPC IPC(8): F27D3/00C04B35/66C04B35/565F27D21/00
Inventor 钱建军
Owner 长兴鑫宇耐火材料有限公司
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