KR101185607B1 - Method for manufacturing glaze of soot color and glaze of soot color - Google Patents

Abstract

The method for producing a burnt black glaze according to the present invention relates to a method of manufacturing a glaze that can express the same burned black as the carbon infiltrated into the tile since the matte black can be realized even after firing as a glaze applied to the tile. will be.

Description

Preparation method of burned black glaze and burned black glaze by the manufacturing method {Method for manufacturing glaze of soot color and glaze of soot color}

The present invention relates to a method for producing a tanned black glaze and to a tanned black glaze according to the manufacturing method, and more particularly, to a tanned black glaze capable of embodying the same color as a glaze on a tanned black expressed by infiltrating carbon into a tile. It relates to a method for producing.

In general, a tile manufactured by baking after baking is applied to the glaze to realize the color, and then fired again, in this case, due to the nature of the glaze, the glass surface is formed on the surface of the tile, the gloss Will be expressed.

This gloss may be a factor in beautifying the tile, but if necessary, a matte black color may be applied to the tile.

As such, in order to implement a blacking black on the roof tile, it was impossible to apply the glass glaze and then fire it.

Therefore, in some cases, the paint is applied, but in this case, it is not used well because there is a problem of peeling or erasing easily in sunlight and rain.

For this reason, the gas combustion method (carbon permeation method) is used in order to express the burning black color in a roof tile.

The gas combustion method is a method of infiltrating black carbon, which is a decomposition product, into a roof tile by allowing hydrocarbons in the gas to come into contact with a highly heated group. It is a method of incombusting while blowing gas. At this time, about 1.1 tons of gas are burned per 2,000 tiles. The burn time is approximately 68 hours.

When the gas is burned in the kiln, the carbon constituting the gas penetrates the surface of the tile, and the tile produces a matte black color, that is, burned black.

The gas combustion method has been used as the only method for expressing black color burned in tiles until now, but in order to penetrate carbon into the tiles by incombusting the gas, when producing 10,000 sheets of tiles, it costs 5,520,000 won. In the case of firing the general glaze tile, the cost of fuel is a great burden compared to the gas cost of 2,750,000 won when producing 10,000 tiles.

Accordingly, an object of the present invention is to provide a method of manufacturing a glaze that can produce the same tile as the gas combustion method with a low gas cost by enabling the glaze black to be tiled even with the glaze.

The method for producing a burnt black glaze according to the present invention comprises a general ball mill configured to rotate a drum barrel so as to grind the glaze, and a corner accommodating step of inserting a corner which is a ball received in the drum to grind the raw material, and the drum barrel After putting water into the drum, washing the corner by rotating the drum, the corner washing step for draining the water inside the drum, the raw material input step of putting the water after putting the glaze raw material into the drum, and the raw material input When the step is completed, the first pulverizing step to rotate the drum to be finely ground and stirred by the corners and water finely, and when the first crushing step is completed, put the kaolin and water in the drum and crushed and stirred A second pulverizing step to make it possible, a physical property measuring step of measuring physical properties by taking the glaze in the drum, and the water After application of the glaze that has passed through the measurement step to the specimen, thereby forming a formed of a specimen firing step to control the color tone and the sample material to inject from the first milling step, which frit, zinc oxide introduced in the first grinding step , dolomite, silica, as a percentage of the weight of the total amount of kaolin to be added in the black pigment, and a second milling step, and the frit 50%, 3% zinc oxide, dolomite, 3%, silica 2%, 6% black pigment , In the first grinding step, water is 50% of the blending weight of frit, zinc oxide, dolomite, silica, and black pigment input in the first grinding step, and kaolin in the second grinding step, in the first grinding step 36% by weight of the total amount of frit, zinc oxide, dolomite, silica, black pigment, and kaolin added in the second milling step, and mixing water at 72% of the kaolin. As a feature The.
In addition, the frit is 50% silicon oxide (SiO₂) , 6-10% aluminum oxide (Al₂O₃), 6-10% calcium oxide (CaO), 1-5% sodium oxide (Na₂O), potassium oxide (K₂O) 1 to 5%, boron oxide (B₂O₃) 6 to 10%, zinc oxide (ZnO) 1 to 5%, lead oxide (PbO) 1 to 5% of the mixture is characterized in that it is used.

According to the glaze by the manufacturing method of the burned black glaze which concerns on this invention, after apply | coating the said glaze to a tile, it bakes, and the same blacking black as having penetrated carbon to a tile can be expressed. Therefore, compared to the method of infiltrating the carbon, not only the gas cost is reduced, but more tiling can be fired, thereby improving the productivity. For example, when producing 10,000 sheets of tile to infiltrate carbon into the tile by burning the gas, a gas cost of 5,520,000 won is required.However, when using the glaze prepared according to the present invention, 10,000 sheets of tile are fired at a gas ratio of 2,750,000 won. Since it can be made, the production cost can be greatly reduced.

1 is a block diagram showing a method for producing a burnt black glaze according to the present invention.
Figure 2 is a cross-sectional view showing a ball mill used in the method for producing a burnt black glaze according to the present invention.

Hereinafter, a manufacturing method of the present invention for solving the above problems with reference to the accompanying drawings is as follows.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram showing a method for producing a burned black glaze according to the present invention. Fig. 2 is a cross-sectional view showing a ball mill used in the method for producing a burned black glaze according to the present invention.

The present invention is characterized in that it is possible to realize the same color as the glaze of the group where the burned black color is implemented by the gas combustion method.

To this end, in the present invention, a manufacturing method is performed as follows.

First, a corner accommodating step of inserting a corner 200, which is a ball for crushing the raw material 10 into the drum barrel 110 of the ball mill 100, is provided with a ball mill 100 (glaze material grinder). Then, after putting the water into the drum barrel 110 of the ball mill 100, after washing the corner 200 by rotating the drum barrel 110, the corner washing step of removing the water inside the drum barrel 110 is made. Then, after the raw material 10 of the glaze is introduced into the drum 110, a raw material input step of putting the water 20 is made. When the raw material input step is completed, by rotating the drum 110, the first grinding step of grinding and stirring the raw material 10 finely by the corner 200 and the water 20 is made. When the primary grinding step is completed, a secondary grinding step of putting the kaolin 30 and the water 20 in the drum barrel 110 is pulverized and stirred. When the secondary grinding step is completed, a physical property measuring step of measuring physical properties by taking the glaze in the drum 110 is made, and after applying the finished glaze to the specimen, firing the specimen to contrast the color tone with the specimen Consists of steps.

The ball mill 100 is generally used to crush the glaze, and as shown in FIG. 2, the drum barrel 110 is configured to rotate, and the inner surface of the drum barrel 110 is formed by being coated with alumina. In addition, the corner 200 uses alumina balls. As such, the reason for using the inner surface and the corner 200 of the drum 110 as an alumina material is because of the hardness higher than that of the marble, which is suitable for finely crushing the raw material 10 of the glaze, and the drum 110 This is to express accurate chromaticity by reducing the color deviation of the glaze by preventing foreign substances to be generated by the friction of the inner surface and the corner 200 of the glaze. The amount of the corner 200 in the above to occupy 40 to 45% of the volume of the drum 110 to enable the most efficient grinding of the raw material.

The reason for the washing step is to prevent the phenomenon of causing a change in color by causing a chemical change in the glaze due to the foreign matter on the inside of the drum and the corner (200).

In the raw material input step, the raw material 10 is a percentage of the total blending amount of frit, zinc oxide, dolomite, silica, black pigment, and kaolin added in the second grinding step, in the first grinding step, The mixture is 50% frit, 3% zinc oxide , 3% dolomite, 2% silica, 6% black pigment. At this time, the water 20 is 50% of the compounding amount (weight) of the frit, zinc oxide, dolomite, silica, and black pigment .

In the first grinding step, for example, the rotational speed of the ball mill 100 is set to 25 times per minute, and when the size of the ball mill is 2 ton and the weight in the raw material input step is 500 kg, the grinding is performed for 10 hours.

Hereinafter, the rotation time and rotation speed of the ball mill in accordance with the size and input amount of the ball mill will be described.

Ball mill size
(ton) Dose in Ball Mill
(kg)  Grinding time (hours) Ball mill rotation speed
(rpm) Corner ratio inside ball mill
0.5
200 13
20




40-45%



300 15
1.0
300 15
22
500 20
2.0
500 10
25
700 15 1000 20

In the secondary crushing step, for example, the kaolin 30, as a percentage of the total amount of frit, zinc oxide, dolomite, silica, black pigment and the total amount of kaolin added in the second crushing step is added in the first crushing step. As a 36% into the drum 110, the water 20 is mixed to be 72% of the weight of the kaolin 30, and then the rotational speed of the drum 110 at 25 times per minute for 3 hours Crush it. Where% is a percentage by weight. Of course, the sum of all blending amounts except water in the first and second grinding steps is 100%.

In the physical property measurement step, 1 L of the combined glaze is collected, and then the residue amount and specific gravity and viscosity (viscosity cup 100ml / diameter 4.1mm. ASTM D 1200 (S153310) standard) is examined. As an example, the residual amount should be within 5% of the 325 mesh, the specific gravity should be 1.62∼1.63, and the viscosity should be 20-25 seconds to be used as a passable product.

The reason for checking the amount of residue in the above is to check the crushed degree of the raw material and to prevent precipitation. In addition, when the specific gravity and viscosity are applied to the roof tile it is easy to express the desired color tone. For example, if the specific gravity is too small or the viscosity is too small, there is a problem that is not properly applied to the tile. That is, when the viscosity and specific gravity, the desired color was obtained without flowing even when applied to the roof tile. However, it is a matter of course that the property value can be varied depending on the concentration of the color tone.

The reason for putting the water 20 in the first and second grinding step is to allow the corner 200 and the raw material 10 to be easily blended in the drum 110, as a wet glaze containing moisture. This is to facilitate the application to the roof tile.

Looking at each function of the compounding raw material 10 put into the primary grinding step are as follows.

Frit is a blended material that melts upon firing to form a gloss film, and serves to lower the melting temperature of each blended material during firing, while allowing the blended materials to coagulate and adhere to the roof tile. do. Since this fact is known to those skilled in the art, detailed description thereof will be omitted.

In the present invention, the frit is blended with a material such that the melting point of the frit is higher than that of other frits, so that the light does not shine as much as possible. As described above, the frit is a glassy component, which makes the surface of the tile firm and waterproof, while preventing the light from shining, thereby making it possible to express the burning tint. The composition ratio is as follows.

50% silicon oxide (SiO₂), 10% aluminum oxide (Al₂O₃), 10% calcium oxide (CaO), 5% sodium oxide (Na₂O), 5% potassium oxide (K₂O), 10% boron oxide (B₂O₃), zinc oxide Mix 5% (ZnO) and 5% lead oxide (PbO) . The percentage is a percentage by weight and is obtained from several experiments.

If a range is defined in the blending amount of frit, the blending amount should be within the range, but the total blending amount of frit should be adjusted to 100%.

Looking at the function of the raw materials mixed in the first and second grinding step is as follows.

Zinc oxide has a color turbidity effect than barium carbonate used in the conventional glaze to facilitate the matte expression. And the dolomite is to prevent the remaining of the glaze layer formed on the surface of the tile. The silica has a high melting temperature which inhibits sufficient melting of other materials to remove gloss and controls the flowability of the glaze. The black pigment is to enable the appearance of black, the kaolin serves to prevent the luster when firing in the kiln while acting to prevent the gloss, the reason for stirring in the second grinding step This is because when the kaolin is added in the first grinding step, the viscosity becomes too high to prevent smooth grinding and stirring from the beginning.

Looking at the function of the composition of the frit is as follows.

In the above, the silicon oxide is a material forming the glass, and thus the gloss can be reduced by increasing the degree of compounding than other frits. The aluminum oxide increases the degree of fire resistance and controls the flow of the glaze so that a certain thickness of glaze is applied to the roof tile. The calcium oxide is a transparency and color improving material so that the appearance of the burned black color becomes clear. The sodium oxide and potassium oxide can adjust the temperature of melting by enabling low temperature melting. When it is the said compounding quantity, melting | fusing point can be raised as said compounding quantity generally by making it easy to melt at low temperature of a frit generally, and it can express a matte by this. The boron oxide generally serves as a key material for the glassy formation of frit glazes. The zinc oxide serves to stabilize the plasticity of the glaze. The lead oxide is a material that increases the firing range and gloss, reducing the gloss while reducing the content of the conventional frit as the blending amount, thereby increasing the firing range.

When the glaze according to the above manufacturing method is applied (sealed) to the roof tile, and then dried, and then calcined at a high temperature in a kiln, it is possible to express a matte black color with the surface strength, and carbon is applied to the roof tile by the gas combustion method. It is possible to realize the same color as infiltrated. In addition, the glass layer is coated on the surface of the tile due to the frit, so that the glaze layer is hard and excellent in waterproofness, and thus, rainwater penetrates the glaze layer and prevents the phenomenon of seeping into the tile.

In the present invention, soot black glaze produced by the above production method is also included in the scope of the present invention.

100: ball mill
200: corner
10: raw material
20: water
30: Kaolin

Claims (3)

The general ball mill 100 is configured to rotate the drum barrel 110 so that it can be crushed by putting glaze,
Corner receiving step of putting the corner 200 is a ball that is accommodated in the drum 110 to crush the raw material 10 ,
After inserting the water 20 into the drum 110, and washing the corner 200 by rotating the drum 110, the corner washing step for removing the water 20 inside the drum 110,
After inputting the raw material 10 of the glaze into the drum 110, and the raw material input step of putting water 20,
When the raw material input step is completed, by rotating the drum barrel 110 and the first grinding step of grinding and stirring the raw material 10 finely by the corner 200 and water 20,
When the primary grinding step is completed, the secondary grinding step of putting the kaolin 30 and water 20 in the drum barrel 110 to grind and agitate,
A physical property measuring step of measuring physical properties by taking the glaze in the drum 110;
After applying the glaze that passed the physical property measurement step on the specimen, it is made of a specimen firing step of contrasting the color tone with the specimen by firing,
The raw material 10 introduced in the primary grinding step is a percentage of the total blending amount of frit, zinc oxide, dolomite, silica, black pigment, and kaolin input in the secondary grinding step. as, and the frit 50%, 3% zinc oxide, dolomite, 3%, 2% silica, 6% of a black pigment,
In the first grinding step, the water is 50% of the blending weight of frit, zinc oxide, dolomite, silica, and black pigment, which is added in the first grinding step ,
Kaolin in the second milling step, as a percentage of the total blending amount of frit, zinc oxide, dolomite, silica, black pigment, and kaolin added in the second milling step, 36%, , Water is a method of producing a black smoke glaze characterized in that the mixture of 72% by weight of the kaolin . The method of claim 1,
The frit is 50% silicon oxide (SiO₂) , 10% aluminum oxide (Al₂O₃), 10% calcium oxide (CaO), 5% sodium oxide (Na₂O), 5% potassium oxide (K₂O), boron oxide (B₂O₃) 10%, zinc oxide (ZnO) 5%, lead oxide (PbO) 5% of the mixture used for producing a black smoke glaze. delete

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