KR101934431B1 - Mountain and cloud shaped vase - Google Patents

Abstract

The present invention relates to a manufacturing method for a mountain and cloud shaped vase decorated with a flower. More specifically, When the vase is filled with water inside thereof, a weight of the vase increases by the water. Even though a shock of a vase is larger than a shock of an existing vase when the vase falls, the vase is able to maintain a shock resistance and a high strength performance. The present invention comprises the steps of: making a slip mixed with the water and a deflocculant; forming a vase body by a drain casting method; forming a cloud shaped decoration by a solid casting method; curing the formed vase body; making the vase by attaching the decoration; drying the vase; and firing the dried vase in a kiln.

Description

Mountain and cloud shaped vase manufacturing method

More particularly, the present invention relates to a method for producing a vase having an impact resistance and an impact resistance even when the weight of water is added to the inside of the vase, The present invention relates to a method of manufacturing an acid and a cloud vase capable of maintaining high strength performance.

Vases as well as tableware, sanitary ware, clay bricks, and tiles are widely used in food and shelter, and are typical products of the traditional pottery industry. However, these traditional ceramics products tend to decrease in demand because of their heavy weight, which is over 2.7.

Therefore, it is required to develop strong and lightweight ceramics products which are the biggest demand of consumers for the diffusion of ceramics demand.

In accordance with this demand, the Korean Patent Registration No. 10-1343806 discloses a method for producing a raw material containing 25 to 38% by weight of clay, 22 to 40% by weight of feldspar and 25 to 40% by weight of silica, Slurry and 0.1 to 20 parts by weight of cerium oxide (CeO ₂ ) relative to 100 parts by weight of the slurry of the raw material.

However, when the pore is formed at the time of firing according to the addition of cerium oxide (CeO ₂ ) as described in Korean Patent No. 10-1343806, the lightness due to pore formation can be secured, but the strength is lowered in the firing process have.

In Korean Patent No. 10-0924213, a raw material mixed with 40-50 wt.% Of folium, 25-35 wt.% Of clay, 5-10 wt.% Of talc and 10-20 wt.% Of aluminum hydroxide was wet- The composition was thoroughly pulverized through a filtration process and a molding process so as to have a particle size of from 1 to 44 μm in a range of from 1 μm to 44 μm, and then the composition was blended with 60 to 70% by weight of folium, 5-10% by weight of limestone, 10-20% by weight and lithium carbonate 10-20% by wet milling in a ball mill for 30 hours so as to have a particle size ranging from 1 to 44 mu m to obtain a glaze, And then sintering the mixture at a temperature of 1,250 DEG C to obtain a high strength heat resistant magnet.

However, there is a limit to increase the overall strength by using the calcined glaze raw material as disclosed in Korean Patent No. 10-0924213.

Korean Patent No. 10-1343806 Korean Patent No. 10-0924213 Korean Patent No. 10-1343806 Korean Patent No. 10-1409186

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a method of manufacturing a high-strength steel sheet, which is capable of maintaining impact resistance and high strength performance even when the weight of water is filled therein, And a method for manufacturing a vase of a mountain and a cloud.

The problems to be solved by the present invention are not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

For this purpose, a method for producing a vase with an acid and a cloud according to the present invention is a method for producing a vase comprising an acid-like vase body and an acid and a cloud-shaped decoration adhered to the vase body, A step S1 of providing a slurry containing a raw material containing silica and water and a peptizing agent; A step S2 of molding a vase body by a drain casting method in which slip is injected into a first molding mold and then uncured slip is discharged after a predetermined time; A step S3 of forming a cloud-shaped decoration by a solid casting method in which a slip is injected into a second forming mold and then cured; A step S4 of curing the molded vase body; A step S5 of finishing the cured vase body and the surface of the ornament, applying a slip for bonding to the vase body, and attaching a decoration to form a vase; Drying the vase; And firing the dried vase in a kiln (S7).

In the method of manufacturing a vase with an acid and a cloud according to the present invention, when the slip is discharged in step S2, the vase body is turned upside down so that the slip is discharged from the upper opening of the vase body, The slip is discharged without pulsation by injecting air, and the curing in the step S4 is performed for 7 to 12 hours in an environment where a humidity of 60 to 75% is maintained.

Further, in the method of manufacturing a vase with an acid and a cloud according to the present invention, the step S7 includes a step S7-1 of firstly firing the dried vase at 850 ± 10 ° C, a step of applying a glaze to the surface of the fired vase S7-2 in which secondary firing is performed at 1250 占 폚 at 10 占 폚; and a liquor is applied to the surface of the secondary sintered vase, and a part of the kiln door is partially opened until the temperature in the kiln reaches 500 占 10 占And S7-3 in which the kiln door is closed and third firing is performed until the temperature reaches 800 占 10 占 폚.

In the method of manufacturing a vase with an acid and a cloud according to the present invention, the starting material of the wetting step in step S1 is 80-120 parts by weight of feldspar, 40-70 parts by weight of silica, 10-30 parts by weight of functional powder, By weight.

Further, in the method for producing a vase with an acid and a cloud according to the present invention, the functional powder is foam powder.

In the method of manufacturing a vase with an acid and a cloud according to the present invention, the functional powder includes 80 to 120 parts by weight of hollow silica powder and 1 to 10 parts by weight of carbon nanotubes based on 100 parts by weight of the expanded powder do.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a vase manufacturing method of a mountain and a cloud according to the present invention, The impact resistance and high strength performance can be maintained.

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

FIG. 1 is a block diagram showing each step of a method of manufacturing a vase of an acid and a cloud according to the present invention.
2 is a photograph of a mountain and a cloud vase according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the terms described below are defined in consideration of the functions of the present invention, and these may vary depending on the intention of the user, the operator, or the precedent. Therefore, the definition should be based on the contents throughout this specification.

FIG. 1 is a block diagram showing each step of a method of manufacturing a vase of an acid and a cloud according to the present invention, and FIG. 2 is a photograph of a vase of a mountain and a cloud according to the present invention.

1 and 2, the mountain and cloud-shaped vase 10 according to the present invention comprises a mountain-shaped vase body 11 and a cloud-shaped decoration 12 attached to the vase body 11 .

In addition, the method of manufacturing a method of manufacturing an acid and a cloud-shaped vase according to the present invention comprises the steps of: preparing a slip containing a mixture of clay, feldspar, silica, and water and a peptizing agent; A step S2 of molding a vase body by a drain casting method for discharging a slip that has not been cured after a predetermined time, a step S3 of forming a cloud-shaped decoration by a solid casting method in which a slip is injected into a second molding mold, A step S4 of curing the molded vase body, a step S5 of polishing the surface of the vase body and the ornamental finished vase, applying a slip for bonding to the vase body and attaching a decoration to the vase body, Drying the vase, and step S7 of firing the dried vase in a kiln.

Step S1 of the present invention is a process for making a slurry in a slurry state by mixing a raw material with water or the like, wherein the raw material includes clay, feldspar, silica and functional powder.

More specifically, the raw material for the wetting agent can be exemplified by 80 to 120 parts by weight of feldspar, 40 to 70 parts by weight of zeolite, and 10 to 30 parts by weight of functional powder based on 100 parts by weight of clay.

The functional powder is preferably a foamed powder obtained by foaming a ceramic powder such as silicon carbide (SiC) or vermiculite.

In the case of the ceramic foamed powder, a slurry containing 100 parts by weight of silicon carbide powder and 1 to 10 parts by weight of a foaming agent such as calcium carbonate, quicklime and starch is sintered at a temperature of 1,000 to 1,500 ° C to form a foam, And pulverized. Here, the porosity of the foam is preferably 50 to 70%, and the average pore size is preferably 1 to 5 탆.

Korean Patent No. 10-1343806 has an advantage in that lightweight ceramics can be easily produced because pores are formed in the process of firing molded ceramics. However, the density decreases as the pores are formed, However, in the present invention, since the foaming powder previously foamed before firing is mixed, the strength is not lowered.

Particularly, in the present invention, at least one powder of clay, feldspar and silica is pulverized through a ball mill or the like to 10 탆 or less, for example, 1 to 5 탆, whereby a part of the pulverized powder penetrates a part of the pores of the expanded powder Thereby enhancing the bonding force between the powders, thereby greatly improving the impact strength. That is, by providing the three-dimensional network structure of the foamed powder, the bonding force with the clay powder and the like can be greatly improved, and the pores not filled with the clay powder act as a buffer space for absorbing the impact, .

In addition, the functional powder of the present invention may further include 80 to 120 parts by weight of hollow silica powder and 1 to 10 parts by weight of carbon nanotubes based on 100 parts by weight of the ceramic foamed powder.

Since the hollow silica powder has a hollow structure inside, the hollow silica powder plays a role of lightening the vase. Such a hollow silica powder may be prepared by a known method for preparing hollow particles by preparing a core and a shell of silica particles by a sol-gel method and then removing the core, but the present invention is not limited thereto. The particle size of the hollow silica powder is 1 to 100 mu m.

In addition, the overall strength or impact resistance of the vase can be improved by coating the surface of the silica powder with the nano-metal particles. Here, the nano metal particles may be SnO ₂ , ITO, ATO, Al ₂ O ₃ , ZnO, or TiO ₂ having an average particle diameter of 10 to 100 nm, but the present invention is not limited thereto.

The nano metal particle coating solution may be composed of 10 to 50 parts by weight of methyl methacrylate, 10 to 50 parts by weight of methyl ethyl ketone, 1 to 10 parts by weight of glycidyloxypropyl trimethoxy silane, and 1 to 10 parts by weight of nano metal particles .

The carbon nanotube not only improves impact resistance due to its physical strength but also prevents shrinkage or deformation in step S5 or step S6 because it contains water in the inner space until drying and firing.

The forming time of the step S2 and the step S3 of the present invention can be determined in consideration of the thickness of the molded product, and it can be exemplified that it is 40 to 60 minutes.

In the step S2 of the present invention, when the slip is discharged, the vase body is turned upside down so that the slip is discharged from the upper opening of the vase body. The air is injected into the upper opening to inject air, desirable.

In this case, when the air is not injected into the interior of the slip outlet, when the slip which is not hardened is discharged through the narrow upper opening, the molded vase body is broken due to the ripple phenomenon, Defects can be prevented.

The step S4 of the present invention adopts the wet curing method and can be performed for 7 to 12 hours in an environment where the humidity of 60 to 75% is maintained.

More specifically, in step S4, a newspaper is laid in a styrofoam box, and water is sprayed thereon to spray moisture thereon to maintain a moisture of about 75%, thereby preventing rapid drying. Therefore, . In this case, wet curing and stabilization are suitable when stabilizing for 12 hours or more, for example 12 to 20 hours.

In step S4, for example, a wood plywood is laid in a 40-liter plastic bag, a molded article taken out of a mold (gypsum mold) is placed thereon, and a plastic bag is covered. Within 12 hours of maintaining the humidity at 55 to 65% Suitable for wet curing and stabilization, for example for 7 to 10 hours.

In step S7 of the present invention, step S7-1 of firing the dried vase at 850 占 폚 at 10 占 폚, step S7-2 of applying the glaze to the surface of the fired vase and second firing at 1250 占 폚 And the liquefied vase was coated on the surface of the secondary sintered vase and the chamber was partially opened by releasing the gas until the temperature in the chamber reached 500 ± 10 ° C. The chamber was then closed and the chamber was closed until 800 ± 10 ° C And step S7-3 in which the sintering is performed.

Here, the first firing is preferably performed stepwise at room temperature to 200 ° C for about 2 to 3 hours, at 200 to 400 ° C for 2 to 3 hours, and at 400 to 850 ° C for 3 hours.

The glaze used for the secondary firing in the step S7-2 may be a transparent oil alone or a mixture of a transparent oil and a hollow silica powder coated with the nano metal described above. And further enhances durability.

In the third firing step, the gas emission and the firing temperature are a process for smooth coloring of the harvest.

The third sintered compact is finely ground with diamond sandpaper.

The strength of the thus prepared vase of the present invention was tested.

Example 1 is composed of 80 parts by weight of feldspar, 60 parts by weight of silica, and 5 parts by weight of SiC foam powder as a functional powder based on 100 parts by weight of clay as a raw material of the wetting agent. And 2 parts by weight of the nanotubes. Example 3 was the same as Example 2 except that the functional powder of Example 2 further contained 3 parts by weight of hollow silica powder coated with ZnO and a hollow silica powder coated with ZnO was mixed with the transparent oil glaze. In Comparative Example 1, a vase was prepared in the same manner as in Example 1, except that the functional powder was not used in Example 1, and the three-point bending strength was shown in Table 1 below.

Example 1 Example 2 Example 3 Comparative Example 1 Bending strength (MPa) 132 146 193 62

As shown in Table 1 above, it was confirmed that the strength increases with the addition of the functional powder. Particularly, in Example 3, the hollow silica powder coated with ZnO is further contained, and the hollow silica powder coated with ZnO is also coated on the glaze. It was confirmed that the strength was increased by about 30% or more as compared with Example 2.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. Accordingly, the scope of the present invention should be construed as being limited to the embodiments described, and it is intended that the scope of the present invention encompasses not only the following claims, but also equivalents thereto.

10: Vases with mountains and clouds
11: Vase body
12: Decoration

Claims (6)

A method of manufacturing a vase comprising a mountain-shaped vase body and a cloud-like ornament attached to the vase body,
A slurry comprising a raw material containing clay, feldspar, and silica, and a slurry containing water and a peptizing agent;
A step S2 of molding a vase body by a drain casting method in which slip is injected into a first molding mold and then uncured slip is discharged after a predetermined time;
A step S3 of forming a cloud-shaped decoration by a solid casting method in which a slip is injected into a second forming mold and then cured;
A step S4 of curing the molded vase body;
A step S5 of finishing the cured vase body and the surface of the ornament and applying a slip for bonding to the vase body and attaching a decoration to form a vase;
Drying the vase;
(S7) of firing the dried vase in a kiln,
The slip raw material in the step S1 is composed of 80 to 120 parts by weight of feldspar, 40 to 70 parts by weight of feldspar and 10 to 30 parts by weight of the functional powder based on 100 parts by weight of the clay,
The functional powder is a foaming powder,
Wherein the functional powder comprises 80 to 120 parts by weight of hollow silica powder and 1 to 10 parts by weight of carbon nanotubes based on 100 parts by weight of the expanded powder.
The method according to claim 1,
The slip is discharged from the upper opening portion of the vase body by inserting an air inlet tube into the upper opening portion to inject air into the vase body when the slip is discharged in Step S2,
Wherein the curing of step S4 is performed for 7 to 12 hours in an environment where a humidity of 60 to 75% is maintained.
The method according to claim 1,
In step S7,
S7-1 step of firstly firing the dried vase at 850 占 10 占 폚,
A step S7-2 of applying a glaze on the surface of the fired vase and then firing second at 1250 +/- 10 DEG C,
The lid was applied to the surface of the second sintered vase and the chamber was partially opened by releasing the gas until the temperature inside the kiln reached 500 ± 10 ° C. The chamber was then closed and the chamber was closed until the temperature reached 800 ± 10 ° C., And a step (S7-3) of adding the vase to the vase.
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