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Titanium carbide nitride slide board fire resistant material and preparation method thereof

A technology of titanium carbonitride sliding plate and refractory materials, which is applied in the field of refractory materials, can solve the problems of increasing the production cost of corundum sliding plates, and achieve the effects of excellent resistance to melting loss of molten iron, high melting point, and reduced production costs

Inactive Publication Date: 2007-10-24
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pre-synthesis of aluminum oxynitride mentioned in the above patents and the in-situ preparation of the Sialon slider have strict requirements on the atmosphere, and high-temperature nitriding furnace equipment is required, which greatly increases the production cost of the corundum slider and its performance. There is still room for further improvement and improvement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] A titanium carbonitride sliding plate refractory material and its preparation method: 45-50wt% of brown corundum, 25-30wt% of sub-white corundum, 4-10wt% of zirconium corundum, 2-4wt% of alumina micropowder, 1 ~3wt% titanium dioxide powder, 1~3wt% boron carbide powder, 1~3wt% metal aluminum powder, 0.5~3wt% metal silicon powder, 3~5wt% graphite, add 3.5~4.5wt% heat Solid liquid phenolic resin. After kneading, forming under the pressure of 200MPa, heat treatment at 1300-1400℃ for 24h, the slide plate refractory product is obtained. Among them: the particle diameter of brown corundum, sub-white corundum and zirconium corundum is ≤4mm.

[0010] For the titanium carbonitride sliding plate refractory material prepared by the method described in Example 1, the titanium dioxide in the product has been completely converted into titanium carbonitride by X-ray diffraction test. Its performance is detected as a bulk density of 3.20-3.25g / cm 3 , The apparent porosity is 7-9%, th...

Embodiment 2

[0012] A titanium carbonitride sliding plate refractory material and its preparation method: 45-50wt% of brown corundum, 25-30wt% of white corundum, 4-10wt% of zircon mullite, 2-3wt% of alumina micropowder, 1~3wt% of titanium dioxide powder, 3~5wt% of silicon carbide powder, 1~3wt% of metal aluminum powder, 1~3wt% of graphite, plus 3.5~4.5wt% of solid powdered phenolic resin and thermosetting Liquid phenolic resin. After kneading, molding under 200MPa pressure, heat treatment at 1400-1500℃ for 24 hours, the slide plate refractory product is obtained. Among them: the particle diameter of brown corundum, white corundum and zirconium mullite is ≤4mm.

[0013] For the titanium carbonitride sliding plate refractory material prepared by the method described in Example 2, the titanium dioxide in the product has been completely converted into titanium carbonitride through X-ray diffraction test. Its performance is detected as a bulk density of 3.24 ~ 3.30g / cm 3 , The apparent poros...

Embodiment 3

[0015] A titanium carbonitride sliding plate refractory material and its preparation method: 65-80wt% of tabular corundum, 4-10wt% of zirconium corundum, 5-10wt% of zircon mullite, 1-2wt% of aluminum oxide powder , 3~5wt% titanium dioxide powder, 0.5~1wt% boron carbide powder, 1~2wt% silicon carbide powder, 1~2wt% metal aluminum powder, 1~5wt% metal silicon powder, 2~6wt% Graphite is mixed, and 3.5-4.5 wt% of thermosetting liquid phenolic resin is added. After kneading, molding under 200MPa pressure, and firing at 1300-1400°C, the sliding plate refractory product is obtained. Among them: the particle diameter of tabular alumina, zirconium corundum and zirconium mullite is ≤4mm.

[0016] For the titanium carbonitride sliding plate refractory material prepared by the method described in Example 3, the titanium dioxide in the product has been completely converted into titanium carbonitride through X-ray diffraction test. Its performance is detected as a bulk density of 3.26 ~ 3...

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PUM

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Abstract

The invention discloses a titanium carbonitride sliding fireproof material and making method, which comprises the following parts: 65-80wt% corundum, 1-20wt% one or more component of zirconium dioxide or zirconium corundum or zirconium mullite, 1-10wt% alumina micro-powder, 0. 2-5wt% titanium oxide powder, 0-5wt% boron carbide powder, 0-5wt% carborundum powder, 0. 5-5wt% aluminium powder, 0. 5-5wt% silicon powder, 1-5wt% graphite and 2-6wt% organic connecting agent, wherein the materials are blended to smelt and mould, which are sintered under 1300-1600 deg. c. The invention saves manufacturing cost, which improves high-temperature strength and abrasion resistant.

Description

technical field [0001] The invention belongs to the technical field of refractory materials. In particular, it relates to a titanium carbonitride sliding plate refractory material and a preparation method thereof. Background technique [0002] The sliding plate is a device that directly controls the flow of molten steel. It is used under extremely harsh conditions and needs to withstand the thermomechanical and thermochemical erosion of molten steel. This requires that the sliding plate must have good high temperature strength, slag resistance, abrasion resistance and thermal shock resistance. sex. In recent years, the superior performance of nitride-bonded corundum slides has gradually attracted people's attention, such as "refractory materials containing aluminum oxynitride, sliding nozzle refractory materials and continuous casting steel nozzle bricks" (ZL 85109111), by using at least 3 Aluminum oxynitride and 0.5 to 60 parts of heavy carbon and / or carbonaceous substanc...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/10C04B35/622
Inventor 李亚伟金胜利李远兵赵雷李淑静
Owner WUHAN UNIV OF SCI & TECH
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