A method for preparing a binary formula Dai pottery clay and its application.

By improving the binary formula of Dai pottery clay, the operational difficulties and low refractoriness of traditional Dai pottery clay have been solved. This has resulted in a high yield and high strength of Dai pottery under high-temperature firing, with uniform and delicate color, thus improving the service life and market competitiveness of Dai pottery products.

CN119285326BActive Publication Date: 2026-05-26HONGHE VOCATIONAL & TECH COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HONGHE VOCATIONAL & TECH COLLEGE
Filing Date
2024-10-24
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional Dai pottery clay is difficult to handle when throwing or pressing, it is sticky to hands and molds, the firing temperature is low, it is prone to cracking, the yield is low, the product structure is loose, it easily absorbs impurities, and the service life is short, making it difficult to meet the needs of modern life.

Method used

The clay used is a binary formula for Dai pottery. It is made by mixing Dai pottery clay with five-colored clay and charcoal powder in a certain proportion, ball milling it, and then firing it at high temperature to increase the sintering temperature and the density of the structure, and reduce the stress and shrinkage ratio.

Benefits of technology

It significantly improves the plasticity and refractoriness of Dai pottery clay, reduces the cracking rate, increases the yield and product strength, and produces a uniform and delicate color. It overcomes the defects of traditional Dai pottery and enhances its market competitiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

A method for preparing a binary formula for Dai pottery clay and its application is disclosed. The method involves taking Dai pottery clay from the Honghe River basin, five-colored clay from Honghe County, and charcoal powder. The Dai pottery clay and five-colored clay are sun-dried and weathered for at least three months. The Dai pottery clay from the Honghe River basin has a SiO2 content of not less than 50%, an Al2O3 content of not less than 15%, an Fe2O3 content of not less than 10%, and a loss on ignition of less than 10%. The five-colored clay from Honghe County has a SiO2 content of 72-82%, an Al2O3 content of 9-12%, and an Fe2O3 content of 3-5%. The method involves soaking the Dai pottery clay and five-colored clay in water until fully saturated, then ball-milling them. The slurry is sieved, and then charcoal powder is added. After stirring evenly, the clay is pressed to drain water and then kneaded to remove air. This invention can improve the throwing and molding performance of Dai pottery clay, increase the sintering temperature and the density and strength of its structure, and reduce the burn-off rate.
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