阅读说明：本技术 一种深绿釉料及其施用方法 (Dark 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,具体涉及一种深绿釉料,同时还涉及其施用方法。该深绿釉料由深绿釉粉料和水混合制成,所述深绿釉粉料和水的重量配比为：深绿釉粉料∶水＝1∶(1.25-1.5)；该深绿釉粉料由以下重量份数的原料制成：白长石39-41份、石英11-13份、红长石19-21份、熔块11-13份、方解石11-13份、碱石3-5份、铜矿石3-5份、氧化铜2-4份、氧化锌3-4份。(The invention relates to the technical field of glaze materials, in particular to a dark green glaze material and an application method thereof. The dark green glaze is prepared by mixing dark green glaze powder and water, wherein the weight ratio of the dark green glaze powder to the water is as follows: the ratio of the dark green glaze powder to water is 1 to (1.25-1.5); the dark green glaze powder is prepared from the following raw materials in parts by weight: 39-41 parts of albite, 11-13 parts of quartz, 19-21 parts of red feldspar, 11-13 parts of frit, 11-13 parts of calcite, 3-5 parts of alkali stone, 3-5 parts of copper ore, 2-4 parts of copper oxide and 3-4 parts of zinc oxide.)

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

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

39-41 parts of albite

11-13 parts of quartz

19-21 parts of red feldspar

Frit 11-13 parts

Calcite 11-13 parts

3-5 parts of alkali stone

3-5 parts of copper ore

2-4 parts of copper oxide

3-4 parts of zinc oxide.

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

40 parts of white feldspar

12 parts of quartz

20 parts of red feldspar

Frit 12 parts

Calcite 12 parts

4 portions of alkali stone

4 portions of copper ore

Copper oxide 3 parts

3.5 parts of zinc oxide.

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

firstly, preparing dark green glaze powder

Weighing white feldspar, quartz, red feldspar, clinker, calcite, alkali stone, copper ore, copper oxide and zinc oxide, adding into a crusher, and crushing and mixing to obtain powder to obtain deep green glaze powder;

secondly, preparing dark green glaze

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

thirdly, glazing

Glazing the green body with the prepared dark green glaze, wherein the glazing method adopts a dipping glaze method or a spraying glaze method, and a green body 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 an intermittent electric kiln is adopted for firing, a kiln door is in a half-open state before being electrified and heated, a gap of 3-5 cm is reserved on the kiln door, and an air outlet at the top of the kiln is opened;

and then electrifying to heat, controlling the heating speed to be 1-2 ℃/min before the temperature rises to 300 ℃ from normal temperature, controlling the heating speed to be 2-3 ℃/min between 300 ℃ and 700 ℃, controlling the heating speed to be 3-5 ℃/min between 700 ℃ and 1100 ℃, completely closing the kiln door after the temperature reaches 700 ℃, placing a chimney with the height of 50 cm at the air outlet of the kiln top, heating to 1100 ℃, controlling the heating speed to be 1 ℃/min, keeping the temperature at 1315 ℃ for 15-30 minutes after the temperature rises to 1315 ℃, finishing firing, taking out, and naturally cooling to room temperature.

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

6. The method of applying deep green glaze according to claim 3, wherein the deep green glaze is applied in a concentration of 40 to 50 Baume degrees when the glaze spraying method is used.

Technical Field

The invention relates to the technical field of glaze materials, in particular to a dark 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 dark green glaze and an application method of the dark green glaze.

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

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

39-41 parts of albite

11-13 parts of quartz

19-21 parts of red feldspar

Frit 11-13 parts

Calcite 11-13 parts

3-5 parts of alkali stone

3-5 parts of copper ore

2-4 parts of copper oxide

3-4 parts of zinc oxide.

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

40 parts of white feldspar

12 parts of quartz

20 parts of red feldspar

Frit 12 parts

Calcite 12 parts

4 portions of alkali stone

4 portions of copper ore

Copper oxide 3 parts

3.5 parts of zinc oxide.

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

firstly, preparing dark green glaze powder

Weighing white feldspar, quartz, red feldspar, clinker, calcite, alkali stone, copper ore, copper oxide and zinc oxide, adding into a crusher, and crushing and mixing to obtain powder to obtain deep green glaze powder;

secondly, preparing dark green glaze

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

thirdly, glazing

Glazing the green body with the prepared dark green glaze, wherein the glazing method adopts a dipping glaze method or a spraying glaze method, and a green body 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 an intermittent electric kiln is adopted for firing, a kiln door is in a half-open state before being electrified and heated, a gap of 3-5 cm is reserved on the kiln door, and an air outlet at the top of the kiln is opened;

then electrifying to heat, controlling the heating speed to be 1-2 ℃/min before the temperature is increased to 300 ℃ from normal temperature, aiming at discharging the moisture in the blank and the glaze, wherein the heating is not easy to be too fast so as to fully discharge the moisture; controlling the temperature rise speed to be 2-3 ℃/min at the temperature of 300-700 ℃, and continuously drying the blank body at the stage to completely discharge the water in the blank body; controlling the heating speed to be 3-5 ℃/min at 700-1100 ℃, completely closing a kiln door after the temperature reaches 700 ℃, and placing a chimney with the height of 50 cm at an air outlet of the kiln top, so as to enhance the air flow in the kiln and enable the atmosphere of the kiln to be neutral between reduction and oxidation; heating to 1100 deg.C, controlling the heating rate at 1 deg.C/min to oxidize the blank and glaze completely, heating to 1315 deg.C, maintaining at 1315 deg.C for 15-30 min, 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 dark 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 dark green glaze used is 40 to 50 baume degrees.

The dark 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 plays a role in fluxing; quartz, which acts as a skeleton and can increase brightness; the red feldspar improves the brightness and transparency of the glaze surface and plays a role in fluxing; 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; calcite, which is combined with white feldspar and red feldspar to increase the transparency; the alkali stone has the functions of floating and covering the bottom, the alkali stone has the function of improving the covering effect of the colored glaze on the body color, so that 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 alkali stone has the function of preventing the glaze from precipitating; copper ore as a colorant; copper oxide, which makes the glaze green, because the copper oxide is green in a high-temperature oxidation state; zinc oxide enhances the whiteness of the glaze and makes the glaze opaque and bright. When the kiln atmosphere is between reduction and oxidation (neutral), the copper oxide combines with the main component iron oxide in the copper ore to form a dark green color.

The finished product rate of the porcelain fired according to the formula and the manufacturing and firing process reaches more than 70 percent, the dark green glaze color generates kiln changes, the greens with different depths are mutually staggered and naturally transited, the deepest part of the green is dark green, the light part of the green is grass green, and the green is just like grassland under sunlight reflection, 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.