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Method for manufacturing high-alumina-quality high-temperature crucible pot

A high-temperature-resistant, high-alumina technology, which is applied in the field of preparation of high-alumina high-temperature-resistant crucibles, can solve the problems of strong target use, high raw material costs, and high equipment requirements, so as to save the cost of mechanical equipment, long service life, The effect of reducing production costs

Active Publication Date: 2008-12-10
中铝矿业有限公司 +1
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AI Technical Summary

Problems solved by technology

[0005] The above existing technologies have disadvantages such as high cost of raw materials, high requirements for equipment, and strong pertinence to objects of use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] The bauxite clinker (cooked ore aluminum content above 88%, particle size 100 mesh) 63.5%, α-Al 2 o 3 (Alpha alumina particle size 1-2 microns) 24%, Suzhou soil 5%, silicon carbide (500 mesh) 1.5%, cooked talc 3%, zircon 3%, binder gum arabic dry powder 0.5%, etc. According to 6: 2.5∶0.5∶0.2∶0.3∶0.3∶0.05, weigh them together, put them into a ball mill and mix them for 20 hours. After grinding and mixing evenly, add 40% water and mix them with water. After the slurry is evenly mixed, use injection Slurry molding, the slurry is injected into the designed model to form, after curing and drying, it is calcined at 1570°C for 10 hours in a high-temperature furnace, and a high-alumina clinker high-temperature-resistant crucible with good performance can be obtained.

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Abstract

The invention provides a method for preparing a high alumina heat resistant crucible, relating to a method for preparing the high alumina ceramic crucible which is applied to experiment manufacturing processes such as the high temperature sintering and high temperature chemical synthesis. The method is characterized by comprising the following steps that: raw materials of alumyte grog refractory, alpha-Al2O3, Suzhou clay, carborundum, cooked pencil stone, zirconite, an appropriate amount of a caking agent of Arabian gum dry powder are subject to matching, grinding and watering to prepare slurry; after the casting process, the proximate matter is dried and calcined so that the high alumina heat resistant crucible is prepared. The high alumina heat resistant crucible has good chemical stability, good thermal physics properties such as the heat-resistant stability and the quake-resistance stability, long service life and easy popularization in industry.

Description

technical field [0001] A method for preparing a high-alumina high-temperature-resistant crucible relates to a method for preparing a high-alumina ceramic crucible used in experimental production processes such as high-temperature sintering and high-temperature chemical synthesis. Background technique [0002] High-temperature sintering of many materials and chemical reactions at high temperatures need to be carried out in a high-temperature furnace in a high-temperature-resistant crucible. Such ceramic crucibles are made of corundum, spinel, mullite, cordierite, clay and carbon. Ceramic crucibles have the advantages of good chemical stability, high temperature resistance, corrosion resistance, etc., and are widely used. However, this type of crucible also has fatal shortcomings, that is, poor toughness, high brittleness, and low thermal shock resistance. In order to improve this shortcoming, carbides and carbides are often used as the main raw material to prepare high-tempe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/14C04B35/66C04B35/622
Inventor 杨建平全玉闫晋钢杨燕崔建奇
Owner 中铝矿业有限公司
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