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Novel talc porcelain and making method thereof

A talc porcelain, a new technology, applied in clay products, other household appliances, applications, etc., can solve the problems affecting the practical application of talc porcelain, high sintering temperature, poor mechanical properties, etc., to achieve excellent thermal stability and mechanical properties, sintering Low temperature and excellent processing plasticity

Active Publication Date: 2017-08-15
揭阳恒成陶瓷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is an urgent need to find a new type of talc porcelain clay that can effectively replace the talc component. In addition, the existing talc porcelain has a high sintering temperature, a large internal stress, and poor overall mechanical properties, which are prone to cracks and cracks. Porcelain is damaged, seriously affecting the practical application of steatite porcelain

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A new type of talc porcelain, comprising the following percentage components: clay 15.2%, feldspar 15%, silicate 3%, composite additives 4%, sepiolite balance, the preparation steps of the new talc porcelain include Raw material crushing-ingredients-squeezing mud-staleness-vacuum smelting-grouting molding-demoulding and sintering-small test-pilot test-put into production, where the clay is kaolin or bentonite or a combination of both, the slurry used for grouting The water content is 32-33%, the grouting pressure is 0.19MPa, the demoulding and sintering temperature is 1240°C, and the sintering time is 8h.

Embodiment 2

[0019] A new type of talc porcelain, including the following percentage components: clay 15.5%, feldspar 12%, silicate 2%, composite additives 2%, sepiolite balance, the preparation steps of the new talc porcelain include Raw material crushing-ingredients-squeezing mud-staleness-vacuum smelting-grouting molding-demoulding and sintering-small test-pilot test-put into production, where the clay is kaolin or bentonite or a combination of both, the slurry used for grouting The water content is 32-33%, the grouting pressure is 0.18MPa, the demoulding and sintering temperature is 1250°C, and the sintering time is 8.5h.

Embodiment 3

[0021] A new type of talc porcelain, comprising the following percentage components: clay 16.4%, feldspar 16%, silicate 4%, composite additives 3%, sepiolite balance, the preparation steps of the new talc porcelain include Raw material crushing-ingredients-squeezing mud-staleness-vacuum smelting-grouting molding-demoulding and sintering-small test-pilot test-put into production, where the clay is kaolin or bentonite or a combination of both, the slurry used for grouting The water content is 32-33%, the grouting pressure is 0.2MPa, the demoulding and sintering temperature is 1260°C, and the sintering time is 9h.

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Abstract

The invention provides a novel talc porcelain and a making method thereof. The talc porcelain is made from 14.5-16.8% of clay, 12-17% of feldspar, 2-7% of silicate, 1-5% of a composite additive, and the balance of sepiolite. The making method of the novel talc porcelain includes the following steps: raw material crushing, material proportioning, squeezing for forming mud, ageing, vacuum mu mixing, slip casting and molding, stripping and sintering, laboratory scale test, pilot scale test and industrial production. The sepiolite is adopted to substitute talc, reasonable formula components are improved, and technological parameters are reasonably set, so the produced novel talc porcelain has excellent thermal stability and excellent mechanical properties. The making method has the advantages of simplicity, excellent processing plasticity, low sintering temperature, effective reduction of the production cost, and meeting of market demands.

Description

Technical field [0001] The invention relates to the technical field of preparation of talc porcelain, in particular to a novel talc porcelain and a preparation method thereof. Background technique [0002] Talc porcelain is magnesia porcelain with talc as the main body. It is characterized by high whiteness and high transparency, and is suitable for high-end daily tea sets, tableware and furnishing porcelain. It is decorated with white and various light-colored decorative patterns, which is very elegant and unique. At present, the market for talc porcelain is relatively large, but in recent years, the market demand for talc porcelain has declined year by year due to the continuous increase in talc prices. Therefore, there is an urgent need to find a new type of talc porcelain clay that can effectively replace the components of talc. In addition, the existing talc porcelain has a higher sintering temperature, greater internal stress, poor overall mechanical properties, and is pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/13
CPCC04B33/13C04B2235/3201C04B2235/3244C04B2235/3427C04B2235/3445C04B2235/3463C04B2235/656C04B2235/96C04B2235/9646
Inventor 陈鹏杰陈瑶武钟若鹏刘志漫徐端珍
Owner 揭阳恒成陶瓷科技有限公司
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