Reddish-black jun porcelain glaze prepared by utilizing metal copper and iron and preparation method of reddish-black jun porcelain glaze

A technology of metallic copper and Jun porcelain is applied in the field of sky blue Jun porcelain glaze and its preparation, and the preparation field of Jun porcelain glaze can solve the problems of non-compliance with energy saving and emission reduction, high cost and high energy consumption, and achieves easy control of firing atmosphere and easy firing. The effect of wide temperature range, energy consumption and pollution reduction

Inactive Publication Date: 2014-07-02
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with firing in an oxidizing atmosphere, firing in a reducing atmosphere has high energy consumption and high pollution due to incomplete combustion, and the cost is relatively high, and it does not meet the needs of the current international community for energy conservation and emission reduction, and urgently needs technical improvement and improvement.

Method used

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  • Reddish-black jun porcelain glaze prepared by utilizing metal copper and iron and preparation method of reddish-black jun porcelain glaze

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The method for preparing Tianqing Jun enamel by using metallic copper and iron comprises the following steps:

[0026] 1) By mass percentage, mix 50% feldspar, 20% quartz, 17% calcite, 7% talc, 3% calcium phosphate, and 3% kaolin to obtain a mixture, and then add the mixture to the total Mass 0.5% ZnO, 2% SnO 2 , 1% Fe, 0.5% Cu, 0.3% cellulose and 1% sodium tripolyphosphate, fully mixed to obtain a mixed glaze;

[0027] 2) Press to mix the glaze: ball: water = 1:2:0.8 mass ratio, put the mixture, ball and water into the ball mill for wet ball milling, finely grind for 30 minutes to 250 mesh, get the glaze slurry, adjust the glaze The specific gravity of pulp is 1.65g / cm 3 ;

[0028] 3) Apply the glaze slurry evenly on the biscuit body, after drying, fire it in a box-type resistance furnace with a neutral or weak oxidizing atmosphere at 1280°C, keep it warm for 20 minutes, and cool it with the furnace to obtain Tianqing Jun enamel.

Embodiment 2

[0030] The method for preparing Tianqing Jun enamel by using metallic copper and iron comprises the following steps:

[0031] 1) By mass percentage, mix 50% feldspar, 25% quartz, 14% calcite, 5% talc, 2.9% calcium phosphate, and 3.1% kaolin to obtain a mixture, and then add the mixture to the total Mass 0.9% ZnO, 1.5% SnO 2 , 2% Fe, 1.5% Cu, 0.3% cellulose and 1% sodium tripolyphosphate, fully mixed to obtain a mixed glaze;

[0032] 2) Press to mix the glaze: ball: water = 1:2:0.8 mass ratio, put the mixture, ball and water into the ball mill for wet ball milling, finely grind for 30 minutes to 250 mesh, get the glaze slurry, adjust the glaze The specific gravity of pulp is 1.57g / cm 3 ;

[0033] 3) Apply the glaze slurry evenly on the biscuit body, after drying, fire it in a box-type resistance furnace with a neutral or weak oxidizing atmosphere at 1260 ° C, keep it warm for 30 minutes, and then cool it with the furnace to obtain Tianqing Jun enamel.

Embodiment 3

[0035] The method for preparing Tianqing Jun enamel by using metallic copper and iron comprises the following steps:

[0036] 1) By mass percentage, mix 45% feldspar, 30% quartz, 14% calcite, 5% talc, 3.5% calcium phosphate, and 2.5% kaolin to obtain a mixture, and then add the mixture to the total 1.5% ZnO by mass, 2.5% SnO 2 , 0.2% Fe, 0.1% Cu, 0.1% cellulose and 0.5% sodium tripolyphosphate, fully mixed to obtain a mixed glaze;

[0037] 2) Press to mix the glaze: ball: water = 1:2:0.8 mass ratio, put the mixture, ball and water into the ball mill for wet ball milling, finely grind for 35 minutes to 250 mesh, get the glaze slurry, adjust the glaze The specific gravity of pulp is 1.67g / cm 3 ;

[0038] 3) Apply the glaze slurry evenly on the biscuit, and after drying, fire it in a box-type resistance furnace at 1300°C with a neutral or weakly oxidizing atmosphere, keep it warm for 20 minutes, and then cool it with the furnace to obtain Tianqing Jun enamel.

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Abstract

The invention discloses a reddish-black jun porcelain glaze prepared by utilizing metal copper and iron and a preparation method of the reddish-black jun porcelain glaze, belonging to the preparation filed of ceramic glazes. The preparation method of the reddish-black jun porcelain glaze comprises the following steps of: (1), mixing the following components in percentage by weight: 45%-50% of feldspar, 20%-30% of quartz, 14%-17% of calcite, 5%-7% of talcum, 2.5%-3.5% of kaolin and 2.9%-3.5% of calcium phosphate, so as to obtain a material mixture, and adding and sufficiently mixing the following materials (based on the total weight of the material mixture): 0.3%-2% of ZnO, 1.5%-4% of SnO2, 0.2%-2% of Fe, 0.1%-1.5% of Cu, 0.1%-0.5% of cellulose and 0.5%-1.5% of sodium tripolyphosphate, so as to obtain a glaze mixture; (2), carrying out wet-process ball-milling on the glaze mixture to obtain glaze pulp; (3), applying the glaze pulp on a biscuit firing billet for firing for 20 minutes-40minutes in a neutral or weak oxidative atmosphere, and cooling to obtain the reddish-black jun porcelain glaze. The preparation method of the reddish-black jun porcelain glaze is simple and easy to implement, board in firing temperature range and easily controllable in firing atmosphere. And the reddish-black jun porcelain glaze obtained by the preparation method disclosed by the invention is simple in composition, smooth and flat in glazed surface, high in stability and bright in reddish-black color.

Description

technical field [0001] The invention belongs to the field of ceramic glaze preparation, and relates to a preparation method of Jun enamel, in particular to a sky blue Jun enamel prepared by using metal copper and iron and a preparation method thereof. Background technique [0002] Jun porcelain glaze is a very precious glaze. The general Jun porcelain glaze is made by adding minerals containing copper and iron to the basic glaze, and firing in an atmosphere of oxidation first and then reduction. However, the conditions required by these atmospheres are extremely difficult to control, so there is a saying that "ten kilns are not successful in firing Jun porcelain", "three points depend on the shape of the vessel, five points depend on firing, and two points depend on luck". become very difficult. [0003] With the improvement of modern detection technology, some scholars have conducted in-depth research on the microstructure and kiln transformation mechanism of ancient Jun ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/86
Inventor 王芬董龙龙施佩朱建锋林营杨海波
Owner SHAANXI UNIV OF SCI & TECH
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