阅读说明：本技术 一种绿釉料及其施用方法 (Green 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,具体涉及一种绿釉料,同时还涉及其施用方法。该绿釉料由绿釉粉料和水混合制成,所述绿釉粉料和水的重量配比为：绿釉粉料∶水＝1∶(1.25-1.5)；所述绿釉粉料由以下重量份数的原料制成：白长石51-52份、方解石14-16份、熔块27-29份、白土6-8份、石英12-14份、滑石2-3份、氧化铜2-4份。(The invention relates to the technical field of glaze materials, in particular to a green glaze material and an application method thereof. The green glaze material is prepared by mixing green glaze powder and water, wherein the weight ratio of the green glaze powder to the water is as follows: 1: 1.25-1.5 of green glaze powder and water; the green glaze powder is prepared from the following raw materials in parts by weight: 51-52 parts of albite, 14-16 parts of calcite, 27-29 parts of frit, 6-8 parts of argil, 12-14 parts of quartz, 2-3 parts of talc and 2-4 parts of copper oxide.)

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

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

51-52 parts of albite

14-16 parts of calcite

27-29 parts of frit

6-8 parts of argil

12-14 parts of quartz

2-3 parts of talcum

2-4 parts of copper oxide.

2. The green glaze material as claimed in claim 1, wherein the green glaze powder is prepared from the following raw materials in parts by weight:

51.5 parts of white feldspar

15 portions of calcite

28 parts of frit

7 portions of white clay

13 parts of quartz

Talc 2.5 parts

And 3 parts of copper oxide.

3. A method of applying a green glaze according to claim 1 or 2, comprising the steps of:

firstly, preparing green glaze powder

Weighing white feldspar, calcite, frit, clay, quartz, talc and copper oxide, adding into a crusher, and crushing and mixing to obtain green glaze powder;

second, preparing green glaze

Putting the green glaze powder into a ball mill, adding water for ball milling, wherein the weight ratio of the green glaze powder to the water to a ball milling medium is as follows: the green 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 the green glaze is obtained;

thirdly, glazing

Glazing the green glaze material on the biscuit, 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 the firing adopts a natural gas and electric mixed fuel 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, 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 normal temperature is increased to 300 ℃, 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, a flashboard at the air outlet of a chimney at the top of the kiln is opened, after the temperature is increased to 1100 ℃, the air pressure is increased, a movable drawer at the bottom of the kiln is opened, a carbon block is added, then the drawer is closed, the heating speed is controlled to be 1 ℃/min, after the temperature is increased to 1280 ℃, the temperature is kept at 1280 ℃ for 15-30 minutes, the firing is finished, the furnace is taken out, and the furnace is naturally cooled to the room temperature.

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

6. The method of applying green glaze according to claim 3, wherein the concentration of the green glaze used is 40-50 Baume degree when the glaze spraying method is adopted.

Technical Field

The invention relates to the technical field of glaze materials, in particular to a green glaze material 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 green glaze material. The invention also aims to provide an application method of the green glaze material.

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

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

51-52 parts of albite

14-16 parts of calcite

27-29 parts of frit

6-8 parts of argil

12-14 parts of quartz

2-3 parts of talcum

2-4 parts of copper oxide.

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

51.5 parts of white feldspar

15 portions of calcite

28 parts of frit

7 portions of white clay

13 parts of quartz

Talc 2.5 parts

And 3 parts of copper oxide.

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

firstly, preparing green glaze powder

Weighing white feldspar, calcite, frit, clay, quartz, talc and copper oxide, adding into a crusher, and crushing and mixing to obtain green glaze powder;

second, preparing green glaze

Putting the green glaze powder into a ball mill, adding water for ball milling, wherein the weight ratio of the green glaze powder to the water to a ball milling medium is as follows: the green 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 the green glaze is obtained;

thirdly, glazing

Glazing the green glaze material on the biscuit, 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 the firing adopts a natural gas and electric mixed fuel 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 overlarge pulling force of the chimney, 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 between 300 ℃ and 700 ℃, continuously drying the blank, completely discharging the water in the blank, controlling the heating rate to be 3-5 ℃/min between 700 ℃ and 1100 ℃, completely closing a kiln door after the temperature reaches 700 ℃, opening a flashboard at an air outlet of a chimney at the top of the kiln, increasing the air pressure after the temperature rises to 1100 ℃, opening a movable drawer at the bottom of the kiln, adding a carbon block, and then closing the drawer, wherein the aim is to ensure that the atmosphere in the kiln is in a reduction state, separating out oxygen in the blank and a glaze, the carbon block is used for enhancing the reduction atmosphere in the kiln, simultaneously combining trace elements in the carbon block with coloring agents such as copper, iron and the like in the glaze, combining the copper with elements such as iron, potassium, phosphorus and the like in an incomplete reduction state at high temperature to present green with different depths, controlling the heating rate to be 1 ℃/min, raising the temperature to 1280 ℃, keeping the temperature at 1280 ℃ for 15-30 minutes, finishing firing, taking out, and naturally cooling to 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 glaze method, the concentration of the green 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 green glaze used is 40 to 50 baume degrees.

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

the white feldspar improves the brightness and transparency of the glaze surface and is beneficial to melting; calcite, which combines with albite to increase transparency; 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; the glaze is not precipitated due to the clay and white blocks, and the glaze floats and covers the bottom, so that the glaze is not precipitated, the covering effect of colored glaze on the body color is improved, the color is more bright without being influenced by the body color, the floating effect mainly improves the suspension effect of the glaze, and most glazes are stone glazes and are easy to precipitate, so that the glaze has the effect of preventing the glaze from precipitating; quartz, which acts as a skeleton and can increase brightness; the talc is combined with the white feldspar to play a role in fluxing; copper oxide to make the glaze green.

The finished product rate of the porcelain fired according to the formula and the manufacturing and firing process reaches more than 70 percent, the green glaze is the traditional furnace Jun glaze color, the glaze color is copper green and has golden spots with different sizes, and the porcelain is rich in decorative and artistic effects. Thick and moist enamel. The glaze is smooth, wear-resistant and acid-resistant, has warm and moist texture when touched by hands, and is very easy to clean.

Detailed Description

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