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Zirconium mullite sagger

A zircon mullite and mullite technology, which is applied in the field of zircon mullite saggars, can solve the problems of easy slag falling, restricting the service life of mullite saggars, not being resistant to corrosion, etc. The effect of high frequency of use and enhanced thermal shock resistance

Active Publication Date: 2014-08-06
浙江立鑫高温耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing mullite saggers have the problems of not being resistant to corrosion and easy to drop slag; these problems restrict the service life of mullite saggers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Zircon mullite sagger, including the following raw materials: natural mullite, platy corundum, zircon sand, α-alumina micropowder, silica micropowder, kaolin, binder, the natural mullite, platy corundum , zircon sand, α-alumina micropowder, silica micropowder, kaolin, and the mass ratio of the binder are 35:35:10:12:1:3:2, and the natural mullite has a particle size of 0.5mm Mullite particles between -1mm and mullite powder particles with a particle size of less than 0.5mm, the mass ratio of mullite particles and mullite powder is 3-4:6-8, and the plate-shaped corundum is composed of particles with a particle size between Tabular corundum particles between 0.1mm-0.5mm and tabular corundum powder particles with a particle size of less than 0.1mm, the mass ratio of the tabular corundum particles to the tabular corundum powder is 4-5:3-4, The particle diameter of described zircon sand is below 0.1mm, and the preparation process of described zirconium mullite sagger is as f...

Embodiment 2

[0014] The difference from Example 1 is that the mass ratio of natural mullite, tabular alumina, zircon sand, α-alumina micropowder, silica micropowder, kaolin, and binder is 40:40:12: 18:5:5:3.

Embodiment 3

[0016] The difference from Example 1 is that the mass ratio of natural mullite, tabular alumina, zircon sand, α-alumina micropowder, silica micropowder, kaolin, and binder is 35:40:12: 18:5:3:2.

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Abstract

The invention provides a zirconium mullite sagger which comprises the following raw materials: natural mullite, tabular corundum, zircon sand, alpha-alumina micro powder, silicon dioxide micro powder, kaolin and a binding agent, wherein the natural mullite consists of mullite granules of which the particle size is within 0.5-1 mm and mullite powder granules of which the particle size is smaller than 0.5 mm; the mass ratio of the mullite granules to the mullite powder granules is (3-4):(6-8); the tabular corundum consists of tabular corundum granules of which the particle size is within 0.1-0.5 mm and tabular corundum powder granules of which the particle size is smaller than 0.1 mm; the mass ratio of the tabular corundum granules to the tabular corundum powder granules is (4-5):(3-4); the particle size of the zircon sand is less than 0.1 mm. The zirconium mullite sagger has the advantages of corrosion resistance and freedom of falling residues, the materials are small in heat capacity and thermal expansion, and the circulation use number is large.

Description

technical field [0001] The invention relates to a zircon mullite sagger. Background technique [0002] Mullite sagger is one of the commonly used kiln furniture. It is used in the sintering process of lithium cobalt oxide, cobalt oxide, ternary materials, graphite negative electrode materials, lithium battery positive and negative electrode materials and various powders. Come to the stone sagger. At the same time, with the rapid development of the electronics industry and the communication industry, there is a great market demand for zircon mullite saggers. The existing mullite saggers have the problems of poor corrosion resistance and easy slag drop; these problems restrict the service life of the mullite saggers. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a zirconium-mullite sagger, which has the advantages of corrosion resistance and no slag falling, the heat capacity and thermal expansion of the materi...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 高寿林
Owner 浙江立鑫高温耐火材料有限公司
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