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Zirconia-based refractory materials and preparation method thereof

A technology of refractory materials and zirconia, which is applied in the field of refractory materials to achieve the effects of low cost, low apparent porosity and high compressive strength

Inactive Publication Date: 2020-05-01
TAICANG HONGDA JUNMENG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, with the continuous diversification and development of market demand, more stringent requirements are put forward for the comprehensive performance of zirconia refractory products. It is difficult for existing zirconia refractory materials and preparation processes to meet such a diverse market under lower cost constraints. need

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A zirconia-based refractory material comprising the following components by weight:

[0028] Zirconia 100 parts

[0029] Silicon oxide 3 parts

[0030] Aluminum oxide 1 part

[0031] Stabilizer 8 parts

[0032] 7 parts of binder.

[0033] In this embodiment, 0.8 part of yellow dextrin is also included.

[0034] In this embodiment, 4 parts of charcoal are also included, and the charcoal is amorphous charcoal, the particle size d50 is 3 μm, and the specific surface area is 150 m 2 / g.

[0035] In this embodiment, the zirconia is monoclinic zirconia micropowder.

[0036] In this embodiment, the stabilizer is a mixture of magnesium oxide, yttrium oxide and yttrium nitrate in a ratio of 2:3:1 by weight; the d50 of magnesium oxide is 5 μm, and the d50 of yttrium oxide is 5 μm.

[0037] In this embodiment, the binding agent is polyvinyl alcohol solution.

[0038] In this example, the zirconia-based refractory material is prepared through the following steps:

[0039] ...

Embodiment 2

[0047] A zirconia-based refractory material comprising the following components by weight:

[0048] Zirconia 100 parts

[0049] Silicon oxide 3 parts

[0050] Aluminum oxide 0.5 parts

[0051] Stabilizer 6 parts

[0052] 6 parts of binder.

[0053] In this embodiment, 0.5 part of yellow dextrin is also included.

[0054] In this embodiment, 2 parts of charcoal are also included, the charcoal is amorphous charcoal, the particle size d50 is 3 μm, and the specific surface area is 150 m 2 / g.

[0055] In this embodiment, the zirconia is monoclinic zirconia micropowder.

[0056] In this embodiment, the stabilizer is a mixture of magnesium oxide, yttrium oxide and yttrium nitrate in a ratio of 2:3:1 by weight; the d50 of magnesium oxide is 5 μm, and the d50 of yttrium oxide is 5 μm.

[0057] In this embodiment, the binding agent is polyvinyl alcohol solution or phenolic resin solution.

[0058] In this example, the zirconia-based refractory material is prepared through the f...

Embodiment 3

[0067] A zirconia-based refractory material comprising the following components by weight:

[0068] Zirconia 100 parts

[0069] Silicon oxide 5 parts

[0070] Aluminum oxide 1 part

[0071] Stabilizer 9 parts

[0072] 6-9 parts of binding agent.

[0073] In this embodiment, 0.5-1.2 parts of yellow dextrin is also included.

[0074] In this embodiment, 2-5 parts of charcoal are also included, the charcoal is amorphous charcoal, the particle size d50 is 3 μm, and the specific surface area is 150 m 2 / g.

[0075] In this embodiment, the zirconia is monoclinic zirconia micropowder.

[0076] In this embodiment, the stabilizer is a mixture of magnesium oxide, yttrium oxide and yttrium nitrate in a ratio of 2:3:1 by weight; the d50 of magnesium oxide is 5 μm, and the d50 of yttrium oxide is 5 μm.

[0077] In this embodiment, the binding agent is a phenolic resin solution.

[0078] In this example, the zirconia-based refractory material is prepared through the following steps:...

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Abstract

The invention belongs to the field of refractory materials, and particularly discloses a zirconia-based refractory material and a preparation method thereof. The refractory material based on zirconiumoxide comprises zirconium oxide, silicon oxide, aluminum oxide, a stabilizing agent, a binding agent and other raw materials, and is mainly prepared and formed through a three-step method of materialmixing, blank forming and sintering forming. Compared with the prior art, the refractory material based on zirconium oxide has the advantages of excellent heat resistance, low apparent porosity, thesmall apparent pore diameter, the high compressive strength, the high corrosion resistance and the low cost. The preparation method of the refractory materials based on zirconium oxide is simple and safe to operate and stable and controllable in process.

Description

technical field [0001] The invention belongs to the field of refractory materials, and in particular relates to a zirconia-based refractory material and a preparation method thereof. Background technique [0002] Zirconia is an important refractory raw material with a melting point as high as 2715°C and excellent physical and chemical properties. At the same time, many refractory materials will also add a certain amount of zirconia to improve their performance. At present, relevant materials have been used in various fields of the national economy such as steel, non-ferrous metals, glass, cement, ceramics, petrochemicals, machinery, boilers, light industry, electric power, military industry, etc., and are essential to ensure the production operation and technological development of the above industries Basic materials play an irreplaceable and important role in the development of high-temperature industrial production. [0003] However, with the continuous diversification ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/48
CPCC04B35/48C04B35/66C04B2235/3206C04B2235/3217C04B2235/3225C04B2235/3418C04B2235/422C04B2235/5436C04B2235/602C04B2235/606C04B2235/656C04B2235/6567C04B2235/77C04B2235/96
Inventor 严建忠
Owner TAICANG HONGDA JUNMENG NEW MATERIAL
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