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Ceramic firing kiln furniture and preparation method

A technology for ceramics and kiln furniture, applied in the field of ceramic firing kiln furniture and preparation, can solve the problems of short service life of saggar, low softening temperature under load, poor thermal shock resistance, etc., and achieves good thermal shock resistance and high thermal temperature. The effect of improving flexural strength and thermal shock resistance

Inactive Publication Date: 2018-09-21
万燕杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the above-mentioned saggers such as short service life, deformation at high temperature, poor thermal shock resistance, and low load softening temperature, and provide a ceramic with low production cost, high high-temperature flexural strength and long service life. Firing kiln furniture and preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1 The weight percentages are: andalusite particles 29%, magnesium aluminate gel 25%, calcium stabilized zirconia micropowder 8%, andalusite active micropowder 20%, alumina micropowder agglomerates 15%, Yixing clay 3%, Add 0.1% binder. The process steps are as follows: The above-mentioned raw material components are uniformly stirred in a vertical stainless steel mixer according to the weight percentage, put into a mold, cold-pressed by a 630-ton press, naturally dried, and calcined at 1450 ° C in a 20-meter-long high-temperature kiln, and Keep warm for 5 hours.

Embodiment 2

[0016] Example 2 By weight percentage: by weight percentage: andalusite particles 28%, magnesium aluminate gel 25%, calcium-stabilized zirconia micropowder 8%, andalusite active micropowder 20%, alumina micropowder agglomerate 16%, Suzhou soil 3%, plus 0.1% binder. The process steps are as follows: The above-mentioned raw material components are uniformly stirred in a vertical stainless steel mixer according to the weight percentage, put into a mold, cold-pressed by a 630-ton press, naturally dried, and calcined at 1480 ° C in a 20-meter-long high-temperature kiln, and calcined. Keep warm for 6 hours.

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Abstract

The invention relates to ceramic firing kiln furniture and a preparation method. Andalusite granules, magnesium aluminate gel, micro calcium-stable zirconia powder, active micro andalusite powder, alumina micro powder agglomerates, Yixing clay and 0.1-0.15% of binding agent are mixed in different weight percentages, formed and dried, and finally, the ceramic firing kiln furniture is prepared through high-temperature calcination. The zirconium-containing andalusite toughening sagger product overcomes the existing defects that the service life is short, the stability is poor and the breaking strength is low. The sagger prepared by using the method has the advantages that the high-temperature breaking strength is high, the thermal shock resistance is high and the servicer life is long.

Description

technical field [0001] The invention belongs to the technical field of refractory material preparation, and mainly provides a ceramic firing kiln furniture and a preparation method. Background technique [0002] A ceramic firing kiln furniture, specifically a sagger for firing electronic porcelain. In industry, saggers are often used to produce ceramic products or high-temperature electronic tubes that require high-temperature calcination. Generally, a tunnel kiln is used, which is a continuous heating and sintering equipment. According to the process requirements of the sintered products, the required temperature zone and power are arranged, and the products to be sintered are directly or indirectly placed in the sagger, and the The system moves the product with the kiln car according to the technological requirements of the product, so as to complete the product sintering in the furnace. In this process, the saggar often has to withstand the high temperature of about 130...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/185C04B35/622C04B35/634C04B35/636
CPCC04B35/66C04B35/185C04B35/622C04B35/63496C04B35/6365C04B2235/3217C04B2235/3222C04B2235/3246C04B2235/349C04B2235/96C04B2235/9607
Inventor 万燕杰
Owner 万燕杰
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