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Low-temperature ceramic and preparation method thereof

A low-temperature and low-temperature glaze technology, applied in clay products, other household appliances, applications, etc., can solve the problems of inability to achieve, reduce energy consumption, and high water absorption of products, achieve uniform glaze, save energy, and reduce firing temperature. Effect

Active Publication Date: 2018-11-27
CERAMICS SCI & TECH RES INST QUANZHOU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the ordinary daily-use ceramics produced in Dehua Ceramics District use the traditional three-component quartz-feldspar-clay as the basic composition system, and the firing temperature is basically around 1280°C. The characteristic of this system is that the source of raw materials Rich, low price, excellent processing performance, and good physical and chemical properties of the product, but the low-temperature fast firing process cannot be realized in the existing technology, and the purpose of reducing energy consumption cannot be achieved, although some enterprises have slightly reduced the firing temperature of the green body , but the product has a high water absorption rate and low strength of the porcelain body, which cannot meet the performance requirements of daily-use porcelain

Method used

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preparation example Construction

[0036] A method for preparing low-temperature porcelain, comprising the steps of:

[0037] (1) weighing ingredients according to the raw material formula of the low-temperature green body, the raw materials are respectively pulverized, mixed, and wet-milled to obtain a low-temperature green body;

[0038] (2) Put the Dehua low-temperature stone, Dehua limestone, Dehua quartz and borax in the glaze formula into the melting furnace, and melt it into a frit at 1240-1260°C. agent and thickener by wet ball milling to obtain low-temperature glaze;

[0039] (3) using the low-temperature base slurry obtained in step (1) to make a ceramic body;

[0040] (4) Put the ceramic body into a kiln, and biscuit at 420-450° C. for 2-3 hours to obtain the ceramic body;

[0041] (5) applying low-temperature glaze on the surface of the ceramic body;

[0042] (6) After the glaze on the surface of the ceramic body is dried, it is put into a kiln and fired in an oxidizing atmosphere. The firing tem...

Embodiment 1

[0053] A low-temperature porcelain, including a low-temperature body and a low-temperature glaze,

[0054] The low-temperature body includes the following raw materials in parts by weight: 23 parts of Dehua clay, 12 parts of Dehua Zimujie soil, 35 parts of Dehua low-temperature stone, 9 parts of Dehua limestone, and 12 parts of Dehua dolomite;

[0055] And the chemical composition of the low temperature green body is as follows: K 2 O: 1.08%, Na 2O: 4.43%, CaO: 4.59%, MgO: 2.88%, Al 2 o 3 : 14.85%, SiO 2 : 64.52%, I.L: 7.65%.

[0056] The low-temperature glaze includes the following raw materials in parts by weight: 35 parts of Dehua low-temperature stone, 8 parts of Dehua limestone, 22 parts of Dehua quartz, 38 parts of borax, 4 parts of Dehua high territory, 1 part of sodium silicate, hydroxyethyl fiber Vegetable 1 serving.

[0057] A method for preparing low-temperature porcelain, comprising the steps of:

[0058] (1) weighing ingredients according to the raw materia...

Embodiment 2

[0079] A low-temperature porcelain, including a low-temperature body and a low-temperature glaze,

[0080] The low-temperature body includes the following raw materials in parts by weight: 27 parts of Dehua clay, 8 parts of Dehua Zimujie soil, 25 parts of Dehua low-temperature stone, 11 parts of Dehua limestone, and 18 parts of Dehua dolomite;

[0081] And the chemical composition of the low temperature green body is as follows: K 2 O: 1.32%, Na 2 O: 4.17%, CaO: 5.59%, MgO: 3.52%, Al 2 o 3 : 18.15%, SiO 2 : 57.9%, I.L: 9.35%.

[0082] The low-temperature glaze includes the following raw materials in parts by weight: 25 parts of Dehua low-temperature stone, 12 parts of Dehua limestone, 28 parts of Dehua quartz, 32 parts of borax, 6 parts of Dehua high territory, 1 part of sodium silicate, tristearic acid 1 part of glyceride, 1 part of sodium polyacrylate, 1 part of hydroxyethyl methylcellulose, 1 part of hydroxypropyl methylcellulose.

[0083] A method for preparing low-t...

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Abstract

The invention provides a low-temperature ceramic and a preparation method thereof. The low-temperature ceramic comprises a low-temperature green body and low-temperature glaze, wherein the low-temperature green body comprises, by weight part, Te-hua clay, Te-hua knar clay, Te-hua low-temperature stone, Te-hua wollastonite and Te-hua dolomite. The Te-hua wollastonite, the Te-hua low-temperature stone, the Te-hua dolomite, the Te-hua knar clay, the Te-hua clay and other raw materials are utilized, and through a reasonable proportion, the ceramic forming firing temperature is made to be reduced to 1120 DEG C. According to the principle, the Te-hua clay, the Te-hua knar clay, the Te-hua low-temperature stone, the Te-hua wollastonite and the Te-hua dolomite are utilized, the ratios of alkali metal oxides K2O and N2O and alkaline earth metal oxides CaO and MaO in pug are increased, a solid-phase reaction between SiO2 and Al2O3 is stronger at a low temperature, a low-temperature congruent melting effect is achieved, so that the firing temperature is reduced, and therefore, a lot of energy sources can be saved.

Description

technical field [0001] The invention belongs to the field of ceramic preparation, and in particular relates to a low-temperature porcelain and a preparation method thereof. Background technique [0002] The ceramic industry is a large energy consumer, which accounts for a large proportion of energy consumption. Reducing the energy consumption of ceramic production is a long-term and important task for the ceramic industry. Among all energy consumption methods, reducing the firing temperature of the green body, Achieving low-temperature fast firing is a fundamental solution to excessive energy consumption, and its superiority has formed a consensus in the ceramic industry. [0003] At present, most of the ordinary daily-use ceramics produced in Dehua Ceramics District use the traditional three-component quartz-feldspar-clay as the basic composition system, and the firing temperature is basically around 1280°C. The characteristic of this system is that the source of raw materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/13C04B35/14C03C8/16C03C8/02C04B41/86
CPCC03C8/02C03C8/16C04B33/131C04B35/14C04B41/009C04B41/5022C04B41/86C04B2235/442C04B2235/77C04B2235/96C04B41/4539C04B41/0072
Inventor 李双展许建星彭照耀林志辉郑长龙卢迪榛邱建智
Owner CERAMICS SCI & TECH RES INST QUANZHOU
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