Preparation method of fiber-reinforced sanitary ceramic green body

Abstract

The invention discloses a preparation method of a fiber-reinforced sanitary ceramic green body. The preparation method comprises the following steps: 1) preparing a green body: a, preparing the greenbody from the following components in percentage by mass: 50-70% of calcined bauxite, 8-16% of quartz, 2-10% of ball clay, 2-7% of kaolin, 6-14% of washed porcelain clay, 5-15% of waste mud, 1-5% of brucite fiber and 1-3% of aluminum fluoride; putting the weighed raw materials into a horizontal ball mill, then adding a proper amount of sodium carbonate and water, carrying out wet milling and mixing until the ratio of product with the diameter less than 10<mu>m accounts for 52-56%, then adding 0.5-1% of lignocellulose, continuing ball milling until the ratio of product with the diameter less than 10<mu>m accounts for 58-61%, discharging an obtained slurry; removing iron, sieving, refining and aging to prepare the slurry for later use; b, performing slip casting on the slurry in a gypsum model, and naturally air-drying or drying in an environment of 55 DEG C until the water content is below 5% after grouting, consolidation and demolding to obtain a sanitary ceramic green body; and 2) sintering. The water absorption rate of the sanitary ceramic green body provided by the invention is 6-8% and is lower than that of most ultrathin sanitary ceramics in the industry.

Description

technical field [0001] The invention relates to a method for preparing a fiber-reinforced sanitary ceramic body. Background technique [0002] Ceramic materials have the advantages of high melting point, high hardness, high wear resistance, and oxidation resistance. They are the materials with the best rigidity and highest hardness among engineering materials. Ceramics have high compressive strength, but low tensile strength, poor plasticity and toughness. In the field of special ceramics, there are many studies on the strengthening and toughening of ceramics. However, in the field of sanitary ceramics, due to the high cost of strengthening and toughening ceramics, the development of high-strength and high-toughness sanitary ceramics is limited. [0003] The national standard for sanitary ceramics stipulates that the body thickness of any part of sanitary ceramic products should not be less than 6mm. In recent years, more and more ultra-thin sanitary ceramic products have...

AI Technical Summary

Problems solved by technology

However, in the field of sanitary ceramics, due to the high cost of ceramic reinforcement and toughening, the development of high-strength and high-toughness sanitary ceramics is limited.

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