KR100224274B1 - Method for preparing artificial tile - Google Patents

Abstract

The present invention relates to a method for producing a tile having a magnetic marble texture, and in particular, to provide a tile having an effect as if the jewelry is embedded in natural marble, the present invention, kaolin, clay, pottery, The fine mixed powder of silica sand and feldspar is spray-dried to have a water content of 4 to 6%, and an inorganic pigment is mixed to form a basic raw material. The basic raw material is 1 to 3 m / m thick and has a thickness of less than 3 meshes. 50% by weight, less than 20 to 30% by weight of less than 3 to 5 mesh, 10 to 20% by weight of less than 5 to 7 mesh, and 10 to 20% by weight of more than 7 mesh, each of the colored raw material particles, mica feldspar and Carryelite are mixed. The mixture was molded in a hydraulic press by the dry press method, and then divided in the longitudinal direction so that the plane was 1/2 so that the divided fracture surface could have a natural feeling of irregularities and a texture of multicolored reflective particles. have.

Description

[Name of invention]

Manufacturing method of porcelain marble tile

Detailed description of the invention

[Purpose of invention]

[Technical Field of the Invention and Prior Art in the Field]

The present invention relates to a method of manufacturing a tile having a magnetic marble texture, and more particularly, to provide a tile having an effect as if a jewelry is embedded in natural marble.

In recent years, aesthetics have been developed in which the aesthetics are emphasized by the technology of building technology and high-quality construction materials. Especially, the aesthetic quality is considered important in the stone, tiles and marble which are widely used in the exterior walls of buildings.

In general, granite and marble have unique colors and patterns, which have a beautiful advantage, but resources are limited and expensive, and as a building material, they do not satisfy both physical properties and shapes.

Solving such problems with the supply and use of natural stone and being provided at a relatively low price, the ceramic tile, which is widely used for various interior and exterior building materials, has excellent durability, weathering resistance, and weak acid resistance, and various colors depending on usage and taste. Although it is very popular as a building material for expressing this, it is also insufficient to provide a more natural and differentiated aesthetic with natural marble having different surface shapes and multi-angle particle arrangements.

In addition, a stone tile manufactured by adding a biotite for reduction to the color of a tile in a conventional process of manufacturing a ceramic tile for producing an effect of natural stone among conventional ceramic tiles is widely used.

However, these stone tiles give a somewhat closer aesthetic to natural stone than previous non-spotted tiles, but they give a black spot on a solid background, and the aesthetics are very monotonous to express the original feeling of natural stone. Was.

[Technical problem to be achieved]

In the present invention, in the manufacture of magnetic marble tiles, while reflecting the physical and chemical properties required as a building material, the particles reflect light by a reducing atmosphere firing method in a state where multicolored particles are arranged at various angles on the surface of a marble-like texture. As it allows to give a three-dimensional feeling as if the shape of the jewelry is embedded, the present invention does not break when splitting the unbaked semi-finished product formed in the press in half with a cutter (knife), the height of the four sides is constant while the center portion is When the sintering is performed with molding methods that show different natural textures and irregularities, and particle size control and color in mixed raw materials, it is possible to manufacture beautiful marbles having excellent physical properties and excellent physical properties than marble. will be.

[Configuration and Function of Invention]

The present invention is finely mixed with crushed kaolin, clay, pottery stone, silica sand, feldspar and dried to a water content of 4 to 6% to prepare a basic raw material and to mix an inorganic pigment.

After mixing the raw material mixed with the inorganic pigment and the colored raw material, dry molding, and then split into four directions with an automatic cutting machine (Auto cutting M / C) and then the reducing atmosphere is fired so that the surface of the particles can emit light.

The colored raw material particles are 1 ~ 3m / m thick by the roller compression method, less than 3 mesh 40 to 50% by weight, less than 3 to 5 mesh 20 to 30% by weight, less than 5 to 7 mesh 10 to 20% by weight , 7 mesh or more to 10 to 20% by weight.

Hereinafter, the present invention will be described in detail.

Spray the basic raw materials of 'kaolin, clay, stone, silica, feldspar' to make the moisture content 4 ~ 6%, and dry mix the normal inorganic pigments with the basic raw materials to adjust the particle size distribution to a constant distribution state. do.

The water content of 4 to 6% of the basic raw material is an optimal condition for cutting and dividing with a divider.

At this time, in the addition of inorganic pigments, 1 to 5 kinds of pigments are separately added to the basic raw materials separately, and the mixed raw materials are mixed to each other to form a roller compaction method, that is, a pressure of about 200 kg / cm 2 and a particle size. To adjust, to prepare a colored raw material particles of 3 to 10 mesh consisting of a single color through a particle maker.

After separately preparing 2 to 5 colored raw material particles for each color colored by the above method, 3 to 5 mixed again with the basic raw material prepared by the above method, mixed with feldspar, and then divided and fired after molding. Compared to the prior art, it is to produce magnetic marble tiles that are like marble embedded with superior texture, three-dimensionality and color.

At this time, the colored raw material particles should be the particle size distribution as described above to be excellent in the texture of the tile, such as jewelry embedded during the dividing operation, to maintain the excellent physical properties after dividing after molding, the components of the colored raw material particles It is the same as the raw material.

EXAMPLE

① Spray dry pulverized raw materials (kaolin, clay, pottery stone, silica sand, feldspar) in the same way as the known method to make 4 ~ 6% by weight of water to obtain basic raw materials, and then make their particle size uniform.

② 1 to 5 kinds of colored raw material particles (1 to 3 m / m in thickness, less than 3 meshes 40 to 50% by weight, less than 3 to 5 mesh 20 to 30% by weight, less than 5 to 7 mesh, 10 to 20% by weight, 7 mesh 10-20 wt% or more of the raw materials) are separated and added by dry mixing to prepare mixed raw materials classified by pigments of different colors.

③ Combine all the above mixed raw materials to produce colored raw particles of 1 to 10 mesh by dry method using a particle manufacturing machine employing a roll compacting object.

④ Separate and prepare for each particle size of size necessary to fit the particle size distribution composition.

⑤ The colored raw material particles thus produced have a certain color.

⑥ Add the colored raw material particles of ⑤ to 3 to 5 different colors to the basic raw material of ① prepared by drying and mix again with mica and feldspar.

⑦ High pressure dry molding of the mixed raw material.

⑧ Cut into flat surfaces by giving strong impact at the same time to enter 3 ~ 5m / m with cutter in 4 directions of molded product.

⑨ Load on baking plate and reduce baking.

According to the present invention as described above, the pottery is mainly composed of quartz and mica, and other kaolin and feldspar are mixed, the amount of which is used is 50 to 80% by weight, and when a small amount is used, the amount of silica or kaolin is accordingly. This should increase the cracking (CRACKING) occurs severely.

In addition, the feldspar has a property of lowering the melting temperature of the base material, binding the refractory particles, and increasing the luminescence and post-firing strength. The use of feldspar is preferably 5 to 15% by weight. If the magnetization of the tile product is poor, and exceeds 15% by weight, expansion and deformation will occur due to the development of the glass phase during firing.

In addition, clay imparts moderate plasticity to molding, and its amount is used in an amount of 10 to 20% by weight. If it is less than 10% by weight, plasticity is poor, and if it is more than 20% by weight, the product color is colored gray or brown. Not good

In addition, kaolin is a plastic raw material to produce a mulberry (MULLITE) at 1000 ℃ or more, the amount of use is 0 to 10% by weight, the higher the amount used, the higher the plasticity and the fire resistance of the body.

And silica sand supplies the silica powder in the base material, and increases the strength after firing by adding an appropriate amount in the range of 0 to 10% by weight, there is a problem that the magnetization does not exceed 10% by weight.

These conventional raw materials are mixed within the range of use as described above to form the basic raw material of the present invention, wherein the mixing ratio is generally a ball mill (BALL MILL) in a ratio of raw material: water: silica = 1: 0.5: 1. 45 to 48% by weight of water) is finely pulverized and filtered through a 200 mesh standard so that the residue is 2 to 4% by weight.

In the present invention, the moisture content after such pulverization is very important, and when the moisture content is separated from 4 to 6% by weight, a spray drying method having excellent moisture control is adopted because the defect rate is very high.

Hereinafter, the process of manufacturing the magnetic marble tile will be described in more detail.

(1) Preparation of raw materials.

The basic raw materials of kaolin, clay, pottery stone, silica sand, feldspar and inorganic pigments for pottery, mica feldspar, and feldspar are used.

Here, mica feldspar is a mineral containing a mixture of biotite and orthoclase, and kari feldspar is an ortho-class mineral. Inorganic pigments for ceramics are used in several kinds or dozens of kinds. It depends, but it is safe up to 1300 ℃.

Such pigments include, for example, pigments mainly composed of MnO ₂ Chramite Cr ₂ O ₃ , cobalt, and the like, and the expression color is pink, gray, green, red, brown, blue, or the like.

(2) Preparation of Mixed Raw Materials.

1-5 kinds of inorganic pigments are dry mixed at a ratio of 1-5% by weight to the basic raw materials, thereby preparing 1-5 kinds of mixed raw materials classified by pigments.

The raw material of the inorganic pigment mixed state is most preferably 4 to 6% by weight of water, respectively.

The mixing of such inorganic pigments is simple mixing by a dry method, but if the amount of the pigment mixture is excessively excessive, there is a problem in that the molding composition properties are influenced by the cost increase of the product and the pigment self-property, resulting in poor molding ability and magnetization state.

At this time, if the moisture is less than 4%, high pressure pressurization capacity is required, and after the particles are not formed in a desirable state, if the moisture is more than 7% by weight, the mixed raw material powder is attached to the mold or the roll, and the workability is reduced, mixed with the main raw material. When the particle form is easily destroyed, the texture of the product is degraded.

(3) Preparation of colored raw material particles.

As described above, the inorganic pigments are added, and the mixed raw materials 1 to 5 which are classified in a certain particle size distribution are mixed and manufactured as colored raw material particles having a specific color through a particle maker.

The particle size distribution is 40-50% by weight less than 3 meshes, 20-30% by weight less than 3-5 meshes, 10-20% by weight less than 5-7 meshes, and 10-20% by weight of 7 meshes or more.

The reason for adjusting the particle size distribution as described above is to improve the molding conditions and to distribute the texture of the surface excellently when dividing. When the particle size distribution is too fine, double molding is concerned, and when the particle size is too thick, The non-uniformity caused by the position causes a problem of deterioration in physical properties after molding or after manufacture.

At this time, the particle manufacturing machine should be adjusted so that the pressure capacity is 200kg / ㎠ and the water content is 4 ~ 6% by weight in the production of particles of irregular thickness and irregular shape by the roller pressing method, the particle size is 3 ~ 7 mesh Most suitable.

(4) Preparation of a mixture of raw material particles.

The mixing wool manufacturing process for mixing the colored raw material particles and mica feldspar and Carryfeldite by color produced in the particle manufacturing machine at a constant ratio, wherein the particles are introduced into the mixer to prevent the particles of a certain size during mixing from being destroyed. And mica feldspar and Carry feldspar first, and after mixing the particles sufficiently, the particles are introduced. The mixer is an idle type mixer, and the rotation speed is 20-25 rpm and the capacity is 500-700 kg. 10-30 minutes are suitable for / time and mixing time.

(5) forming process

The dry spray method is used to mold a certain shape such as a rectangular shape in a hydraulic molding machine, but the molding work is the same as the general tile process, but it is necessary to be careful to split the molded product into half, and to have a uniform distribution of particles. It should be well distributed vertically so that the double descent of lower punches and the entrance and exit speed of the box are adjusted, and the separation and exit speed is adjusted to 0.5 to 1 second when moving forward and 1 to 1.5 seconds when moving backward.

At this time, maintaining the molding pressure to 270kg / ㎠ is an important condition that can maintain the moisture content of 4-6% after molding and can be accurately split into 1/2 during the dividing operation.

(6) Division process

In the molding process, the molded part is automatically cut by 3 ~ 6m / m at the speed of 1/20 ~ 50 seconds at the same time in the 4 directions with the automatic cutting machine (AUTO CUTTING M / C). It is divided into 1/2 so that the water content and press pressure should be uniformly applied to the upper and lower parts of the molded product and distributed evenly at various angles according to the particle size. The failure rate can be minimized.

(7) firing process

The semi-molded semi-finished product is loaded and fired on a baking sheet, and calcined for 10 to 10 hours at room temperature at 1080 ° C, followed by reducing atmosphere firing (CoCKAFID 5 to 10%) at 1080 ° C to 1300 ° C. It is then fired for 5 to 6 hours so that the surface of the particles can be reflected by light like a jewel with a small change of glass.

[Effects of the Invention]

As described above, the present invention gives a predetermined color similar to the surface and internal form of marble based on powdered stone raw materials and raw materials such as clay, kaolin, feldspar, and minerals, and produces and mixes them. By giving the same texture and color, it provides the effect and the effect as if the jewelry is embedded in the natural marble, and as an exterior tile of various buildings, it can obtain various effects such as excellent aesthetics and decorativeness.

Claims (1)

The fine mixed powder of kaolin, clay, pottery stone, silica sand and feldspar is spray-dried to have a water content of 4 to 6%, and an inorganic pigment is mixed to form a basic raw material, and the basic raw material has a thickness of 1 to 3 m / m. 40 to 50% by weight of less than 3 meshes, 20 to 30% by weight of less than 3 to 5 meshes, 10 to 20% by weight of less than 5 to 7 meshes, 10 to 20% by weight of more than 7 meshes, and mica feldspar and carry The feldspar is mixed and the mixture is molded in a hydraulic press by the dry press method, and then divided in the longitudinal direction so that the plane is 1/2, so that the divided fracture surface has a natural feeling of irregularities and a texture of multicolored reflective particles. Method for producing a magnetic marble tile, characterized in that to enable.