JPH0538707A - Manufacture of ceramic molded body with pattern - Google Patents

Abstract

PURPOSE:To express a pattern formed on the surface or a par of the surface of a ceramic molded body such as a paving tile or the like in the manner of gluten (continuous internal same pattern by forming a pattern layer composed of dried sintering material for pattern of the specified thickness. CONSTITUTION:An auxiliary frame 5 corresponding to a pattern to be expressed is disposed in a frame 4, and dried sintering materials 2R and 2B for pattern are filled in one or both of inner and outer sections of the auxiliary frame 4, and while sintering materials 3D and 3W for a base layer are filled in the remaining section in which the materials 2R and 2B for pattern are not filled, the sintering materials 2R and 2B for pattern and the sintering materials 3D and 3W for the base layer are pressurized to mold a base for a ceramic molded body, and said base is released from the frame 4, and burnt, and then both of said materials are sintered integrally.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to pavement tiles laid and fixed on sidewalks, roads, etc., wall tiles and other ceramics, sintered rock, glass, refractory materials, structural ceramics, etc. Regarding manufacturing method.

[0002]

2. Description of the Related Art For example, when a pattern of a traffic sign such as a pedestrian crossing or a stop is to be expressed on a part of the surface of a pavement tile, or a pattern is to be expressed on the entire surface, conventionally, it is necessary to transfer or print the pattern on the surface. The only way I could do was by inlaying.

[0003]

However, the pattern drawn on a part or the whole of the surface of the pavement tile is rubbed by the bottom of the footwear of a person walking on it or the wheels of an automobile running on it,
It will wear out in a short period of time, so it is necessary to repaint frequently, which is very troublesome. In addition, the method by inlay requires a lot of labor for manufacturing, and the cost is very high. Therefore, the present invention was developed for the purpose of expressing the pattern appearing on a part or the whole surface of the ceramic molded body in a Kintaro candy type by a pattern layer made of a dried pattern sintering material having a predetermined thickness. Of.

[0004]

According to a first aspect of the present invention, there is provided a method for producing a patterned ceramic molded body, wherein a non-corresponding pattern to be expressed is provided at a predetermined position inside a frame for molding the base material of the ceramic molded body. A soluble auxiliary frame is arranged, and a dried pattern sintering material is provided on one or both of the inside and the outside of the auxiliary frame,
While filling the remaining portion not containing the pattern sintering material inside the mold with the base layer sintering material, respectively, and removing the auxiliary frame from the inside of the mold, pressurizing both materials, or
Moisture contained in the sintering base layer material, or a lubricating binder,
Alternatively, the base material is molded by applying plasticity with water or a lubricating binder supplied to one or both of the base layer sintered material and the pattern sintered material to pressurize the base material, and the base material is demolded from the mold and fired. This is characterized in that the pattern sintering material and the base layer sintering material of the base material are integrally sintered.
The method for producing a patterned ceramic molded body according to claim 2, wherein a soluble auxiliary frame corresponding to a pattern to be expressed is arranged at a predetermined position inside a mold for molding the base material of the ceramic molded body, The inside and outside of the auxiliary frame are filled with the dried pattern sintering material, and the remaining part of the inside of the frame not containing the pattern sintering material is filled with the base layer sintering material, respectively, and pressed. Or, the moisture contained in the base layer sintered material, or the lubricating binder, or the moisture supplied to one or both of the base layer sintered material and the pattern sintered material, or the lubricating binder is used to impart plasticity and pressurize. Thus, the base material is molded, and the base material is released from the mold and fired, whereby the pattern sintering material and the base layer sintering material of the base material are integrally sintered.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the method for producing a patterned ceramic molded body of the present invention will be described below with reference to the drawings. 1,
2 and 5 show a pattern-formed ceramic molded body 1 manufactured according to the present invention, which is a pavement tile in this case. FIGS. 1 and 2 show four traffic sign patterns, and FIG. 5 shows one pattern. Is expressed.

The tile shown in FIG. 1 comprises a pattern layer 2 and a base layer 3 having the same thickness, and the pattern layer 2 is exposed on a part of the surface of the tile. As will be described later, this tile fills the inside of the auxiliary frame placed in the formwork with the sintering material for patterning, and the outside of the auxiliary frame with the sintering material for the base layer with the same thickness as the above-mentioned sintering material for patterning. It was manufactured by In contrast,
In the tile of FIG. 2, the pattern layer 2 is exposed on a part of the front surface of the tile, but the back surface of the tile is formed only by the base layer 3. In other words, the thickness of the base layer 3 is thin in the part that lines the pattern layer 2 and thick in the part exposed on the surface. The tile shown in FIG. 2 is filled with the pattern sintering material inside the auxiliary frame arranged in the mold as described later, and includes the outside of the auxiliary frame, and contains the pattern sintering material inside the mold. It was manufactured by filling the whole remaining portion which was not filled with the sintered material for the base layer. Further, in the tile shown in FIG. 5, the pattern layer 2 forms the entire front surface, the back surface has the base layer 3, and the base layer is not exposed on the surface of the tile. As described later, this tile fills the inside of the auxiliary frame arranged in the mold with the pattern sintering material with the same thickness on the outside of the frame, and the above-mentioned pattern sintering material inside the frame is It was manufactured by filling the whole remaining portion, which was not contained, with the sintered material for the base layer. It should be noted that the order of filling the sintered material for pattern and the sintered material for base layer is arbitrary in manufacturing any tile.

In the present invention, the base material of the ceramic molded body in which the pattern layer 2 is exposed on a part of or the entire surface as illustrated in FIGS. Using the auxiliary frame 5 according to the above, the pattern layer 2 is a dry pattern sintered material, and the base layer 3 is pressure-molded with a base layer sintered material, and the tiles of FIGS. 1 and 2 are manufactured. FIG. 4 shows an auxiliary frame 5 for manufacturing the auxiliary frame 5, FIG. 3 is a plan view of the auxiliary frame arranged inside the mold, and FIG. 7 shows the auxiliary frame 5 for manufacturing the block of FIG. The plan views in which are arranged inside the mold are shown in FIG. 6, respectively.

The dried pattern sintering material is mainly composed of clay, rock or glass powder or fine particles, one or more kinds of powder glaze, or a mixture of these with a pigment and a colorant, and is Even if it contains water or a lubricating binder from the dry state, it is not kneaded with water or a lubricating binder and can be easily loosened and supplied. , Or one or more of rock or glass powder or fine particles, or a mixture of these with a pigment or a coloring agent as a main component, and in the finish, the color, gloss, and texture are different from those of the above-mentioned sintered material for patterns. Even if it contains water or a lubricating binder even if it is absolutely dried, it is not kneaded with water or a lubricating binder, and even if it is a dry material for forming a base layer that can be easily loosened and supplied, water or a lubricating binder. For the base layer composition made by kneading with The material may be a formula material, and the sinter material for the pattern and the sinter material for the base layer may be mixed with a substance such as crushed particles or crushed powder of ceramics, powder or particles of metal or other mineral matter, if necessary. Various lubricants, binders and other additives may be mixed.

Now, in order to manufacture a ceramic molded body by the manufacturing method of claim 1, the above-mentioned auxiliary frame made of a metal plate, plastic, rubber, wood, paper, non-woven fabric or other material insoluble in water or solvent is used. 5 is used, but this auxiliary frame has a cylindrical shape in which not only the upper surface but also the lower surface is opened in order to remove it from the inside of the mold.

In order to mold the green body of the ceramic molded body of FIG. 1, a T-shaped space 5a defined by a partition inside the auxiliary frame 5 arranged in the mold 4 turns red when fired and is dried. The pattern sintered material 2R, the dried pattern sintered material 2B which also becomes blue in the two fan-shaped spaces 5b, and the dry base layer sintered material 3D or the outside of the auxiliary frame 5 were kneaded. The wet base layer sintering material 3W is applied in the same thickness 8th
Fill as shown in the figure (filling order of each material is arbitrary), and after filling is completed, the auxiliary frame is removed from the mold.

In order to form the green body of the ceramic green body of FIG. 2, as shown in FIG. 9, the above-mentioned pattern sintering is dried in the spaces 5a and 5b inside the auxiliary frame 5 in the mold to be thinner than the thickness of the green body. Fill material 2R, 2B, then outside the auxiliary frame,
Dry base layer sintered material 3 on the pattern sintered material 2R, 2B
D or a wet base layer sintering material 3W is filled so as to obtain a base material having a required thickness, and the auxiliary frame is removed, or as shown in FIG. The binder material 3D or the wet base layer sintering material 3W is thinly filled, and then the spaces 5a and 5b inside the auxiliary frame are filled with the pattern sintering material 2R.
And 2B, similarly to the auxiliary frame, the sintered material for the base layer 3D or 3
W is filled so that it has a required thickness, and the auxiliary frame is removed.

In order to mold the green body of the ceramic molded body of FIG. 5, as shown in FIG. 11, the space 5c inside the auxiliary frame in the mold becomes white due to firing and snow on the top of the mountain is removed. Dry pattern sintered material 2W shown, space 5d is also brown, dried pattern sintered material 2Br representing mountain surface, space 5e is also blue, dry pattern sintered material representing sea 2B, the outside of the auxiliary frame also becomes sky blue, and each of the pattern sintering materials 2S representing the sky is filled thinner than the thickness of the base material, and then the base material of the entire inside of the mold has a required thickness. Is filled with a dry base layer sintering material 3D or a wet base layer sintering material 3W, or conversely to the above, first, the entire inside of the mold is first dry or wet base layer sintering material 3D or 3W. And then fill the spaces 5c, 5d, 5 inside the auxiliary frame. And filling the pattern for sintered materials 2W dried outside of the auxiliary frame, 2Br, 2B, the 2S. Then, the auxiliary frame is removed from the inside of the formwork.

In any of the above-mentioned methods, the auxiliary frame 5 can be removed from the mold at a stage where the pattern to be expressed is not damaged even if the auxiliary frame is removed after filling the entire sintering material for patterns. For example, it may be before or after the dry or wet sintering material 3D or 3W for the base layer is filled. For example, in the case of FIG. 8, if the auxiliary frame is removed after filling the pattern sintering materials 2R and 2B, the pattern collapses. Therefore, the base layer sintering material 3D or 3W is removed after filling the outside of the auxiliary frame, and in the case of FIG. Is a sintered material for patterns 2
R, 2B and the same amount of base layer sintered material 3D or 3W
The auxiliary frame may be removed after filling, or the sintered material for the base layer may be removed after filling each material. In the case of FIG. 10, the auxiliary frame is removed after filling the pattern sintering materials 2R and 2B and all the base layer sintering materials 3D or 3W, and
In the case of the figure, all of the pattern sintering materials 2S, 2W, 2Br, 2B may be removed after filling, or the base layer sintering material 3D or 3W may be removed on each pattern sintering material after filling. May be. Thus, when the auxiliary frame 5 is removed, the wall 5'of the auxiliary frame
The pattern-sintering material and the pattern-sintering material and the base-layer-sintering material in the portions that were separated from each other collapse, and fill the traces of the removed auxiliary frame wall. In addition, when removing the auxiliary frame, one or both of the form frame and the auxiliary frame is vibrated or vibrated with ultrasonic waves,
By removing the auxiliary frame and pressing the entire material with a press, the collapse of the material is forced, and it is possible to accelerate the filling of the traces on the wall of the auxiliary frame.

In the case of filling the base layer sintered material 3D which is a dry type, the water content necessary to press-mold the base material with respect to the total amount of the base layer sintered material and each pattern sintered material. The amount of water or the lubricant binder is supplied to the entire inside of the mold so that the ratio of the material or the lubricant-containing binder ratio is adjusted. May be supplied to

Further, it is a wet-type base material sintered material 3 to be filled.
When the base layer sintered material 3W has a water content or a lubricant-containing binder content higher than necessary, the water or the lubricant binder is supplied to the dried pattern-forming sintered material. Of course, when the water or the lubricating binder contained in the base layer sintered material and the pattern sintered material is insufficient, it is additionally supplied.

In this way, the auxiliary frame 5 is removed, and when the pattern sintering material and the base layer sintering material have the water content or the lubricant-containing binder ratio required for pressure molding, both materials in the form are removed. The base material of the ceramic molded body is molded by pressurizing, the mold is released from the mold and fired, and both materials are integrally sintered to form a ceramic molded body. Of course, after demolding, before firing, if necessary, the base material is dried or glazed so that the water content or the lubricant-containing binder content of both materials becomes predetermined.

In order to manufacture the ceramic molded body by the manufacturing method according to the second aspect, an auxiliary frame made of wafer or other material that is soluble in water or a solvent is used. Since the auxiliary frame disappears, the auxiliary frame is not limited to a cylindrical one with both upper and lower surfaces open, and a lower surface with a bottom closed can also be used.

1, 2 and 5 according to the second aspect of the present invention
The manufacturing method of the ceramic molded body of No. 1 is the same as the embodiment of Claim 1 described above except that the step of removing the auxiliary frame from the inside of the mold is unnecessary. The traces of the frame are filled with the pattern-forming sintered material, which has been in contact with the wall of the auxiliary frame, and the pattern-forming sintered material and the base-layer sintered material, collapsing. It is recommended to vibrate or pressurize to promote the collapse.

When it is desired to dissolve and place the auxiliary frame early, after filling all the dried sintering materials for patterns, water and a lubricating binder are supplied, and then the sintering material for the base layer is filled. You may. In this case, the amount of water and the lubricating binder to be supplied to the dried base layer sintering material 3D is reduced, and the water content or the lubricating binder rate of the wet base layer sintering material 3W is reduced. Put. Furthermore, if the wet base layer sintering material 3W is filled before the pattern sintering material, the auxiliary frame may be melted before the pattern sintering material is filled. Use a substance that is soluble but requires a long time to dissolve. Then, since the auxiliary frame is melted and does not need to be taken out from the mold, it only needs to have a depth equal to the filling thickness of the pattern sintering material, and it is not necessary to project it upward from the upper face of the mold. ..

In any of the manufacturing methods of claims 1 and 2 described above, when the mold is placed on a table vibrator and each pattern sintering material and base layer sintering material is filled, When vibration is applied, the density of each material is increased, and the material can be densely packed.

Similarly, in both the manufacturing methods of claim 1 and claim 2, a water-absorbing or oil-absorbing mat 6, for example, a non-woven fabric is laid on the inner surface of the bottom of the mold 4 as shown in FIG. When the auxiliary frame 4 is placed on top of it and each material is filled, the excess water and the lubricating binder are absorbed, and the moisture and the lubricating binder are evenly spread over each material, and at the time of pressurization. Since it helps degassing the material, it facilitates molding and demolding. This FIG. 12 corresponds to the embodiment of FIG. 8, but the same applies to the embodiments of FIGS. 9 and 11. Also, FIG.
Then, the base layer sintered material 3D or 3W is filled first, and the pattern sintered material is filled thereon, so that a water-absorbing or oil-absorbing mat is laid on the surface of the base material or the inner surface of the bottom of the mold. When placed, the moisture and the lubricating binder are evenly spread as described above, and deaeration is assisted during pressurization, so that molding and demolding are improved.

In either of the first and second manufacturing methods, as shown in FIGS. 13 and 14, a plate or sheet 7 in which pins or small pieces are planted on the inner surface of the bottom of the mold is used. , A sheet 8 having flocked, brushed, napped, and wrapping (pile, loop, etc.) is laid in advance and the auxiliary frame 5 is placed thereon, and the filled dry sintered material for patterns and sintering for base layers Material 3D or 3W with pins and small pieces 7 ', flocked, brushed, added hair, wrapping 8'
May be held by. As a result, it is possible to prevent the materials from moving due to vibration or the like until the materials are pressure-molded, and the boundary between the pattern-sintering materials of different colors or the boundary between the pattern-sintering material and the base layer-sintering material 3D or 3W. Can be expressed clearly. If the above pins, small pieces, flocked hair, brushed hair, napped hair, and wanna are dissolved together with the sheet or plate, they will dissolve and disappear before firing, so it is possible to eliminate the trouble of peeling from the substrate, but dissolve them. It is desirable to use properly depending on the required retention state whether to make it soluble or insoluble.

Further, according to the manufacturing method of any one of claims 1 and 2, a part or all of the mold 4 is made of a deformable material, and each pattern sintering material and base layer sintering material are formed. Three
It is also possible to manufacture a molded product other than the tile-like product by deforming the mold after filling with D or 3 W and press-molding the base material. This is the same pattern as shown in FIG. 1 below. The case of producing a ceramic molded body having the layer 2 on the surface will be described.

15 to 17 show an embodiment for manufacturing a cylindrical molded body, in which the mold 10 is a deformable peripheral frame 11 made of urethane rubber or the like, and a metal for mounting the peripheral frame 11 thereon. It is composed of a thin sheet, a plastic sheet, paper, a non-woven fabric, a woven fabric, a rubber sheet, and a rollable bottom sheet 12, and a peripheral frame 11 is placed on the bottom sheet 12.
1, an auxiliary frame is arranged at a predetermined position inside, the inside of the auxiliary frame is filled with dried pattern sintering material 2R, 2B, and the outside of the auxiliary frame is dried base layer sintering material 3D or wet type. The base layer sintered material 3W is filled (FIG. 15). After supplying water and a lubricating binder as needed, the peripheral frame 11 is covered with a rollable auxiliary sheet 13 similar to the bottom sheet 12 (FIG. 16), and both sinterings inside the peripheral frame 11 are covered. The material is supported between the bottom sheet 12 and the auxiliary sheet 13 and rounded together with the peripheral frame 11 (FIG. 17), and by keeping the rounded state until pressure molding, the pattern layer 2 has a cylindrical shape at a required position on the peripheral surface. The exposed base material can be molded.

Further, FIG. 18 shows that, as shown in FIG. 15, after the pattern sintering material and the base layer sintering material are filled, a mold 14 (a cylinder forming body is In the case of a cylindrical shape, it is wound outside of (cylindrical shape), and both sintered materials are pressure-molded to mold the base material of the cylindrical molded body. In this case, since the surfaces of the two sintered materials 2R, 2B and 3D or 3W exposed on the open upper surface of the peripheral frame 11 contact the outer surface of the mold 14, the auxiliary sheet 13 can be omitted and the mold 14 can be omitted. A polygonal cross section can be molded using a polygonal one. When the base material is rolled or rolled by the manufacturing method of FIGS. 17 and 18, when two side edges of the peripheral frame 11 are adjacent to each other, a seam of a space is generated between the side edges of the base layer sintered material, Both side edges are overlapped and overlapped a little inside and outside, and the sintered material for the base layer is doubled inside and outside at the seam, or each side edge of the peripheral frame 11 is cut off, and the base layer exposed on each side edge is sintered. Butt the materials together so that there is no space at the seam.

Similarly, as shown in FIG. 15, the pattern sintering material and the base layer sintering material are filled in the mold 10 and then lightly pressed to perform molding, and the peripheral frame 11 is removed as shown in FIG. It is wound with the bottom sheet 12 on the outside of the mold 15 corresponding to the inner shape of the power cylindrical ceramic molded body and having the flanges 15 ', 15' at both ends, and both sintered materials are kept in that state (Fig. 20). It is also possible to form a tubular body. Of course, as in the case of FIG. 19, the width of the inner shape of the peripheral frame 11 is set in accordance with the length of one circumference of the mold 15, and the vertical length is the flanges 15 ', 15'.
Match the spacing of. In this case as well, the auxiliary sheet 13 can be omitted, and a cylindrical material having a polygonal cross section can be formed in addition to the cylindrical shape by using the mold 15 having a polygonal shape.

The tubular body thus formed is dried, glazed and fired as required to sinter into a ceramic body.

Although the above is the method for manufacturing a cylindrical ceramic molded body, it is possible to manufacture a ceramic molded body other than the cylindrical shape by deforming part or all of the mold.

For example, as shown in FIG. 15, after filling the frame 10 with the pattern sintering material and the base layer sintering material, as shown in FIG. 21, a recess 16 is formed on the upper surface, and a gel is provided in the recess. 17
Placed on a lower mold 18 filled with the above, and pressed from above with an upper mold 20 having a convex portion 19 corresponding to the concave portion 16 (FIG. 22).
As a result, the upper surface is pushed by the convex portion 19 to be depressed, and the lower surface is pushed into the concave portion 16 to form a base material of the molded body which is bulged downward. In this case, it is not necessary for the peripheral frame 11 to be deformable because it is part of the bottom sheet 12 that is deformed by the formwork. Further, the gel 17 filled in the recess is the upper mold 20.
It is for keeping the part of the bottom sheet located on the concave portion 16 flat until it is pressed by, and it depends on the bottom sheet pushed into the concave portion when the upper mold 20 starts to be pressed and the material on it. It overflows from the upper edge of the recess. The lower mold 18
May be made of a plastic material such as viscosity. In that case, since the upper surface of the lower die made of a plastic material is depressed by pressing the upper die, the recess 16
It is possible to dispense with filling gel 17 therein.

Further, as shown in FIG. 15, after the pattern sintering material and the base layer sintering material are filled in the mold 10, this is placed on the lower mold 21 having an uneven upper surface as shown in FIG. From above with a flat elastic plate 22 (FIG. 24), which causes the mold 10 and both of the sintered materials filled therein to be deformed to the uneven upper surface of the lower mold 21 to form a roof tile, Yatsuhashi. It is also possible to form a base material such as a shape. The mold 10 in this case may be composed of the deformable peripheral frame 11 described above and the bottom sheet 12 laid under the bottom thereof, but the bottom surface of the deformable peripheral frame is a deformable bottom wall. It may have a closed bottom.

The green body thus formed is dried if necessary, glazed, fired and sintered into a ceramic compact.

When a part or all of the mold is deformed to form the base material as described above, if the auxiliary frame 5 is insoluble and deformable, the auxiliary frame is deformed and then the auxiliary frame is deformed. May be demolded. However, when the auxiliary frame is insoluble and cannot be deformed, the auxiliary frame is demolded before the mold is deformed. When the auxiliary frame is soluble, the mold may be deformed after the auxiliary frame starts to dissolve.

In each of the embodiments shown in FIGS. 8, 9 and 10, the auxiliary frame was filled with the dried pattern sintering material. However, the present invention is not limited to this, and one outside the auxiliary frame and one inside the auxiliary frame. Part of the space is filled with a dry pattern sintering material, and the rest of the mold is filled with a dry base layer sintering material or a wet base layer sintering material to mold and fire the base material. It is also possible to manufacture a ceramic molded body.

Further, the filling of the dried sintered material for patterns and the dried sintered material for base layers can be carried out minutely in a dot shape by a robot without manual labor.

[0035]

According to the present invention, it is possible to easily manufacture a ceramic molded body in which a pattern layer is exposed on a part or the entire surface in a Kintaro candy type to express a pattern. And even if the surface of the pattern layer is worn away, the expressed pattern does not disappear or become unsightly.

Further, since the pattern layer is formed by the dry pattern sintering material filled inside the auxiliary frame inside the mold or inside the mold outside the auxiliary frame, the pattern layer can be filled tightly with no gaps and can be removed easily. Since the traces of the auxiliary frame that have been removed or disappeared are filled by the collapse of the sintered material for patterns and the sintered material for base layers, the boundary between the pattern layer and the base layer can be expressed finely, and a ceramic molded body with a very clear pattern Is obtained.

Further, since the pattern sintering material is dry, it can be easily removed by vacuuming with a vacuum cleaner-type tool and repaired if it is inadvertently filled.

After filling the dried sintered material for each pattern,
Or, after filling the dried sintered material for each pattern and the dried sintered material for the base layer, by disturbing the boundary part of each material or the whole, a unique pattern having a texture of marble or other various natural stones is created. Can be expressed.

Further, the pattern layer is made porous and water permeable by determining the particle size of each dried pattern sintering material,
It is possible to make the base layer porous and water permeable by determining the particle size of the sintered material for the base layer, or to make the entire ceramic molded body porous and water permeable by performing both of them. Further, in the case of FIG. 8 and the like, a translucent ceramic molded body can be easily formed by using a translucent pattern sintering material for the pattern layer.

[Brief description of drawings]

FIG. 1 is a perspective view of an example of a patterned ceramic molded body molded according to the present invention.

FIG. 2 is a perspective view of another example of a patterned ceramic molded body that is molded according to the present invention.

FIG. 3 is a plan view of a mold and an auxiliary frame for manufacturing one of the molded bodies of FIGS.

FIG. 4 is a perspective view of the auxiliary frame of FIG.

FIG. 5 is a perspective view of another patterned ceramic molded body manufactured according to the present invention.

6 is a plan view of a mold and an auxiliary frame for manufacturing the molded body of FIG.

FIG. 7 is a perspective view of the auxiliary frame of FIG.

FIG. 8 is a cross-sectional view showing a manufacturing state of the molded body of FIG.

FIG. 9 is a cross-sectional view showing a manufacturing state of the molded body of FIG.

10 is a cross-sectional view showing another manufacturing state of the molded body of FIG.

11 is a cross-sectional view showing a manufacturing state of the molded body of FIG.

FIG. 12 is a cross-sectional view showing another manufacturing state of the molded body of FIG.

FIG. 13 is a cross-sectional view showing another manufacturing state of the molded body of FIG.

FIG. 14 is a cross-sectional view showing another manufacturing state of the molded body of FIG.

FIG. 15 is a perspective view of a first stage of a manufacturing state of the tube-shaped body.

16 is a perspective view of a second stage of the manufacturing state of the tubular molded body of FIG. 15. FIG.

FIG. 17 is a perspective view of the final stage of the manufacturing state of the tubular molded body of FIG.

FIG. 18 is a perspective view showing another manufacturing state of the tubular formed body.

FIG. 19 is a perspective view of a first stage of a manufacturing state of another cylinder forming body.

20 is a perspective view of a final stage of a manufacturing state of the tube-shaped molded body of FIG.

FIG. 21 is a perspective view showing a manufacturing state of another molded body.

22 is a sectional view of the molding state of FIG. 21. FIG.

FIG. 23 is a perspective view showing a manufacturing state of another molded body.

24 is a cross-sectional view of the molding state of FIG. 23.

[Explanation of symbols]

 1 Molded Body 2 Pattern Layer 2R Pattern Sintering Material 2B Pattern Sintering Material 2S Pattern Sintering Material 2Br Pattern Sintering Material 2W Pattern Sintering Material 3 Base Layer 3D Dry Base Layer Sintering Material 3W Water Base Layer Sintering material 4 Formwork 5 Auxiliary frame 6 Bulky matte 7 Plate or sheet 8 Plate or sheet 10 Formwork 11 Surrounding frame of formwork 12 Bottom sheet 13 Auxiliary sheet 14 Cylindrical form 15 Cylindrical form 18 Bottom Mold 19 Convex 20 Upper mold 21 Lower mold 22 Elastic plate

Claims (2)

[Claims] 1. A non-dissolving auxiliary frame corresponding to a pattern to be expressed is arranged at a predetermined position inside a mold for molding a base material of a ceramic molded body, and one or both of the inside and the outside of the auxiliary frame. The dried pattern sintering material and the remaining portion of the inside of the mold that does not contain the pattern sintering material are filled with the base layer sintering material, respectively, and the auxiliary frame is removed from the inside of the mold. , The above materials are pressurized, or the moisture contained in the sintering base layer material, or the lubricating binder, or the moisture or the lubricating binder supplied to one or both of the base layer sintering material and the pattern sintering material, is plasticized. Is applied to form a base material, and the base material is released from the mold and fired to integrally sinter the pattern sintering material and the base layer sintering material. And a method for producing a patterned ceramic molded body. 2. A soluble auxiliary frame according to a pattern to be expressed is arranged at a predetermined position inside a mold for molding the base material of the ceramic molded body, and one or both of the inside and the outside of the auxiliary frame are arranged. The dried pattern sintered material, the remaining portion of the inside of the mold not containing the pattern sintered material is filled with the base layer sintered material, respectively, and pressed, or the base layer sintered material is contained. Moisture or lubricous binder, or moisture supplied to one or both of the base layer sintering material and the pattern sintering material, or plastic is imparted with lubrication binder to pressurize the substrate, and the substrate is molded. A method for producing a patterned ceramic molded body, characterized in that the sintered material for a pattern and the sintered material for a base layer are integrally sintered by demolding from a frame and firing.