阅读说明：本技术 一种棕色釉料及其施用方法 (Brown glaze and application method thereof ) 是由 刘晓明 孙晓岗 刘艺宸 梁翠玲 孟宪英 于 2019-10-31 设计创作，主要内容包括：本发明涉及釉料技术领域,具体涉及一种棕色釉料,同时还涉及其施用方法。该棕色釉料由棕色釉粉料和水混合制成,所述棕色釉粉料和水的重量配比为：棕色釉粉料∶水＝1∶(1.25-1.5)；所述棕色釉粉料由以下重量份数的原料制成：红长石71-73份、方解石13-15份、氧化铁1-1.5份、铁矿石5-5.5份、二氧化锰6-8份、熔块1-2份、萤石1-2份。(The invention relates to the technical field of glaze, in particular to brown glaze and an application method thereof. The brown glaze is prepared by mixing brown glaze powder and water, wherein the weight ratio of the brown glaze powder to the water is as follows: 1: 1.25-1.5 of brown glaze powder and water; the brown glaze powder is prepared from the following raw materials in parts by weight: 71-73 parts of red feldspar, 13-15 parts of calcite, 1-1.5 parts of ferric oxide, 5-5.5 parts of iron ore, 6-8 parts of manganese dioxide, 1-2 parts of frit and 1-2 parts of fluorite.)

1. The brown glaze is characterized by being prepared by mixing brown glaze powder and water, wherein the weight ratio of the brown glaze powder to the water is as follows: 1: 1.25-1.5 of brown glaze powder and water;

the brown glaze powder is prepared from the following raw materials in parts by weight:

71-73 parts of red feldspar

13-15 parts of calcite

1-1.5 parts of ferric oxide

5-5.5 parts of iron ore

6-8 parts of manganese dioxide

1-2 parts of fusion cake

1-2 parts of fluorite.

2. The brown glaze according to claim 1, wherein the brown glaze powder is prepared from the following raw materials in parts by weight:

72 parts of red feldspar

14 portions of calcite

1 part of ferric oxide

5 parts of iron ore

Manganese dioxide 7 parts

Frit 1.5 parts

Fluorite 1.5 parts.

3. A method of application of brown glaze according to claim 1 or 2, characterized in that it comprises the following steps:

firstly, preparing brown glaze powder

Weighing red feldspar, calcite, ferric oxide, iron ore, manganese dioxide, frit and fluorite, adding into a crusher, and crushing and mixing to obtain brown glaze powder;

secondly, preparing brown glaze

Putting the brown glaze powder into a ball mill, adding water for ball milling, wherein the weight ratio of the brown glaze powder, the water and a ball milling medium is as follows: brown glaze powder, water and ball milling medium are 1 to (1.25-1.5) to 2, the rotating speed of a ball mill is controlled to be 40-50 r/min, and the ball milling time is 18-25 hours, so that brown glaze is obtained;

thirdly, glazing

Glazing the plain blank by using the prepared brown glaze, wherein the glazing method adopts a dipping glaze method or a spraying glaze method, and a blank to be fired is obtained after glazing;

fourthly, firing in a kiln

Placing a green body to be fired into a kiln for firing, wherein natural gas is used as fuel for firing, the kiln is an intermittent kiln, a kiln door is in a half-open state before ignition, a gap of 3-5 cm is reserved at the kiln door, and a flashboard at an air outlet of a chimney on the top of the kiln is in a closed state;

and then igniting and heating, wherein before the temperature is increased to 300 ℃ from the normal temperature, the heating speed is controlled to be 1-2 ℃/min, the heating speed is controlled to be 2-3 ℃/min between 300 ℃ and 700 ℃, the heating speed is controlled to be 3-5 ℃/min between 700 ℃ and 1100 ℃, after the temperature reaches 700 ℃, the kiln door is completely closed, the flashboard at the air outlet of the kiln top chimney is opened, after the temperature is increased to 1100 ℃, the flashboard at the air outlet of the kiln top chimney is closed to leave a gap of 3-5 cm, the air pressure is increased, the heating speed is controlled to be 1 ℃/min, after the temperature is increased to 1315 ℃, the temperature is kept for 15-30 minutes at 1315 ℃, the firing is finished, the kiln is taken out, and the kiln is naturally cooled to the room temperature.

4. The method of applying brown glaze according to claim 3, wherein the rotation speed of the ball mill is controlled to 45 rpm, and the ball milling time is 20 hours.

5. The method of applying brown glaze according to claim 3, wherein the concentration of the brown glaze used is 50-60 Baume degrees when the glazing method is a dipping glaze method.

6. The method of application of brown glaze according to claim 3, wherein the concentration of brown glaze used is 40-50 Baume degree when the glazing method is a glaze spraying method.

Technical Field

The invention relates to the technical field of glaze, in particular to brown glaze and an application method thereof.

Background

The daily-used ceramic wares generally wear a smooth clothes, especially daily-used ceramic wares, and are more exquisite to the clothes, some are clean and white like jade, some are colorful and very beautiful. This kind of clothes, named "glaze", for ceramics.

The main component of the glaze is silicate, the glaze applied on the ceramic ware is generally prepared from quartz, feldspar and clay as raw materials by grinding, adding water, coating on the surface of a blank, roasting at a certain temperature to melt, and forming a vitreous thin layer on the surface of the ceramic ware when the temperature is reduced. It can increase the mechanical strength, thermal stability and dielectric strength of ceramic ware and can prevent liquid and gas from corroding ceramic ware. The glaze also has the functions of improving the appearance of the porcelain, facilitating the washing and wiping of the porcelain, preventing the porcelain from being stained by dust, and the like.

The color of the glaze is called the glaze color. The glaze color of the porcelain begins to be single, and with the development of the porcelain industry and the technological progress, the original plain porcelain with one glaze color develops to the color porcelain with various glaze colors nowadays, so that the color of the porcelain is increased. The fired porcelain has bright and bright glaze color and is not easy to crack, depends on the grasp of the firing process technology on one hand, and more importantly has great relationship with the formula of the glaze. Therefore, development and research on glaze materials to enrich the glaze color of porcelain and improve the aesthetic degree of porcelain are an important direction in the manufacture of porcelain at present.

Disclosure of Invention

The invention aims to provide a brown glaze. The invention also aims to provide an application method of the brown glaze.

In order to realize the purpose, the invention adopts the technical scheme that: the brown glaze is prepared by mixing brown glaze powder and water, wherein the weight ratio of the brown glaze powder to the water is as follows: 1: 1.25-1.5 of brown glaze powder and water;

the brown glaze powder is prepared from the following raw materials in parts by weight:

71-73 parts of red feldspar

13-15 parts of calcite

1-1.5 parts of ferric oxide

5-5.5 parts of iron ore

6-8 parts of manganese dioxide

1-2 parts of fusion cake

1-2 parts of fluorite.

Preferably, the brown glaze powder is prepared from the following raw materials in parts by weight:

72 parts of red feldspar

14 portions of calcite

1 part of ferric oxide

5 parts of iron ore

Manganese dioxide 7 parts

Frit 1.5 parts

Fluorite 1.5 parts.

The invention also provides an application method of the brown glaze, which comprises the following steps:

firstly, preparing brown glaze powder

Weighing red feldspar, calcite, ferric oxide, iron ore, manganese dioxide, frit and fluorite, adding into a crusher, and crushing and mixing to obtain brown glaze powder;

secondly, preparing brown glaze

Putting the brown glaze powder into a ball mill, adding water for ball milling, wherein the weight ratio of the brown glaze powder, the water and a ball milling medium is as follows: brown glaze powder, water and ball milling medium are 1 to (1.25-1.5) to 2, the rotating speed of a ball mill is controlled to be 40-50 r/min, and the ball milling time is 18-25 hours, so that brown glaze is obtained;

thirdly, glazing

Glazing the plain blank by using the prepared brown glaze, wherein the glazing method adopts a dipping glaze method or a spraying glaze method, and a blank to be fired is obtained after glazing;

fourthly, firing in a kiln

Placing a green body to be fired into a kiln for firing, wherein natural gas is used as fuel for firing, the kiln is an intermittent kiln, a kiln door is in a half-open state before ignition, a gap of 3-5 cm is reserved on the kiln door, a flashboard at an air outlet of a chimney on the top of the kiln is in a closed state, and the purpose of closing the flashboard is to prevent the phenomena of excessive chimney tension, uneven temperature in the kiln and blank explosion;

igniting and heating, wherein the heating speed is controlled to be 1-2 ℃/min before the temperature is increased to 300 ℃ from normal temperature, so as to discharge the moisture in the blank and the glaze, and the heating is not easy to be too fast so that the moisture can be fully discharged; controlling the heating rate to be 2-3 ℃/min at the temperature of 300-700 ℃, continuously drying the blank body at the stage, completely discharging the water in the blank body, controlling the heating rate to be 3-5 ℃/min at the temperature of 700-1100 ℃, completely closing the kiln door after the temperature reaches 700 ℃, opening a gate plate at the air outlet of a kiln top chimney, closing the gate plate at the air outlet of the kiln top chimney to leave a gap of 3-5 cm after the temperature is increased to 1100 ℃, increasing the air pressure, controlling the heating rate to be 1 ℃/min, aiming at ensuring that the kiln atmosphere is in a strong reduction state, keeping the temperature at 1315 ℃ for 15-30 minutes after the temperature is increased to 1315 ℃, finishing firing, taking out, and naturally cooling to the room temperature.

In a preferred embodiment, the rotation speed of the ball mill is controlled to be 45 rpm, and the ball milling time is 20 hours.

In a preferred embodiment, when the glazing method is a dipping method, the concentration of the brown glaze used is 50 to 60 baume degrees.

In a preferred embodiment, when the glazing method is a glaze spraying method, the concentration of the brown glaze used is 40 to 50 baume degrees.

The brown glaze provided by the invention is used for firing Jun porcelain, and comprises the following components in percentage by weight:

the red feldspar improves the brightness, transparency and fluxing action of the glaze surface; calcite, which combines with red feldspar to increase transparency; oxidizing iron to make the glaze dark brown red; iron ore, making the glaze in deep brown red; manganese dioxide, a colorant; the frit can enable the glaze surface to be opaque and reduce the firing temperature, the main components of the ceramic glaze are silicon oxide and aluminum oxide, the melting points of the silicon oxide and the aluminum oxide are 1700 ℃ and 2054 ℃, and the melting temperature of the silicon oxide and the aluminum oxide is reduced by combining with feldspar and calcium oxide in the frit; fluorite, which makes the glaze bright and has melting function. The iron and the manganese are combined to be brownish red in the high-temperature reducing atmosphere.

The finished product rate of the porcelain fired according to the formula and the manufacturing and firing process reaches more than 90 percent, the brown glaze color is ochre color, the glaze layer has no crackle, and the porcelain has stable color and rich texture. Thick and moist enamel. The glaze surface is matt, has no rough feeling when touched by hands, is mild, smooth, wear-resistant, acid-resistant and easy to clean.

Detailed Description

The technical solution of the present invention will be described in detail by specific examples.