1750 DEG C high-temperature corundum and mullite push plate formula and preparation process

A technology of mullite and fused mullite, which is applied in the field of 1750°C high-temperature corundum mullite push plate formulation and preparation technology, can solve the problems of different application fields and different components, and achieve good wear resistance, Effects of extended service life and high thermal vibration stability

Active Publication Date: 2012-09-19
湖南仁海科技材料发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] The components of these two patents are different, and the application fields are also different

Method used

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  • 1750 DEG C high-temperature corundum and mullite push plate formula and preparation process
  • 1750 DEG C high-temperature corundum and mullite push plate formula and preparation process

Examples

Experimental program
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Effect test

example 1

[0036] A 1750°C high-temperature corundum mullite push plate formula consists of: 20 parts of fused mullite, 36 parts of fused white corundum, 20 parts of platy corundum, 12 parts of a-Al2O3 micropowder, 8 parts of kaolin, activated 2 parts of agent, 2 parts of binder.

[0037] A process for preparing a 1750°C high temperature corundum mullite push plate is as follows:

[0038] Step 1, carry out blank mixing according to the above composition quality formula;

[0039] Step 2, complete green body forming through mold making;

[0040] Step 3, complete green body shaping;

[0041] Step 4, carry out microwave green body drying;

[0042] Step 5, firing the dried green body at 1780°C to obtain the finished push plate;

[0043] Step 6. Inspection of the finished product out of the kiln;

[0044] Step 7, the finished product is marked and put into storage.

[0045] Through Example 1, the obtained 1750°C high-temperature corundum-mullite push plate can achieve the following prope...

example 2

[0047] A 1750°C high-temperature corundum mullite push plate formula consists of 28 parts of fused mullite, 35 parts of fused white corundum, 15 parts of platy corundum, 12 parts of a-Al2O3 micropowder, 7 parts of kaolin, activated 1 part of agent, 2 parts of binder.

[0048] The process flow for preparing a 1750°C high-temperature corundum-mullite push plate is the same as Example 1.

[0049] Through Example 2, the obtained 1750°C high temperature corundum mullite push plate can achieve the following properties: 1. It can be used for a long time without deformation under the condition of 1750°C high temperature and high pressure; 2. The service life is extended to about 6 months; 3. It has extremely high thermal vibration stability, and the push plate does not crack from the high temperature zone to the low temperature zone; 4. It has sufficient normal temperature strength and high temperature strength, and good wear resistance.

example 3

[0051] A 1750°C high-temperature corundum mullite push plate formula consists of 23 parts of fused mullite, 40 parts of fused white corundum, 16 parts of platy corundum, 10 parts of a-Al2O3 micropowder, 8 parts of kaolin, activated 2 parts of agent, 1 part of binder.

[0052] The process flow for preparing a 1750°C high-temperature corundum-mullite push plate is the same as Example 1.

[0053] Through Example 3, the obtained 1750°C high temperature corundum mullite push plate can achieve the following properties: 1. It can be used for a long time without deformation under the condition of 1750°C high temperature and high pressure; 2. The service life is extended to about 6 months; 3. It has extremely high thermal vibration stability, and the push plate does not crack from the high temperature zone to the low temperature zone; 4. It has sufficient normal temperature strength and high temperature strength, and good wear resistance.

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Abstract

The invention discloses a 1750 DEG C high-temperature corundum and mullite push plate and a preparation process. The 1750 DEG C high-temperature corundum and mullite push plate formula is characterized by comprising the following compositions by weight: 20-28 percent of electrically-fused mullite, 35-45 percent of electrically-fused white alumina, 15-20 percent of tabular corundum, 10-12 percent of alpha-Al2O3 micro powder, 4-8 percent of kaolin, 1-2 percent of an activating agent and 1-2 percent of a bonding agent. The push plate can achieve the following properties of: being incapable of being deformed under conditions of high temperature of 1750 DEG C and high pressure after being used for a long time; having a service life of about six months; having extremely high thermal vibration stability, and having no crack from the high-temperature area to the low-temperature area; and having enough normal temperature strength and high temperature strength, and good wear-resisting property.

Description

technical field [0001] The invention relates to the field of refractory materials, in particular to a formula and a preparation process of a 1750°C high-temperature corundum mullite push plate. Background technique [0002] China is the world's largest producer of ceramics. At present, there are more than 10,000 ceramic manufacturers in the country, about 4,000 enterprises with medium-sized and above, about 3 million employees, and the total output value of the entire industry is about 450 billion yuan. In 2011, the output of daily-use ceramics of enterprises above designated size in my country was 27.123 billion pieces, building ceramics 7.808 billion square meters, sanitary ceramics 174 million pieces, and high-temperature special ceramics output 50 million tons / year. [0003] Alumina high-temperature structural ceramics have a wide range of uses, such as ceramics for vacuum devices, thin-film circuit substrates, silicon-controlled nanotubes, infrared detection materials, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/101C04B35/622
Inventor 陈历番潘建华潘建中
Owner 湖南仁海科技材料发展有限公司
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