JP2013001633A - Crystallized glass article and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crystallized glass article and a method for manufacturing the same in which the crystallized glass article has unity and no gaps that may cause leakage, can be applied to an angular bent corner section, and can be made more lightweight.SOLUTION: The crystallized glass article 10 includes a first sintered body 11 composed of crystallized glass of which capillary crystals are deposited inward from an interface between a plurality of glass sub-areas that are fused together, and a second sintered body 12 composed of a similar crystallized glass, in which the second sintered body 12 is integrated by fusing with a portion 11b of one surface 11a of the first sintered body 11.

Description

  The present invention relates to a crystallized glass article suitable for an interior / exterior material of a building, a decoration material, and the like, and a method for producing the same.

  In recent years, a wall material made of natural marble-like crystallized glass having a high gloss and a high degree of dimensional freedom has been used as an interior / exterior material and a decoration material of a building, instead of marble.

  For example, Patent Document 1 discloses a natural marble-like crystallized glass, and Patent Document 2 discloses a patterned crystallized glass article in which an amorphous glass and a natural marble-like crystallized glass are laminated. It is disclosed.

  Conventionally, when a wall surface of a building is formed using a wall material made of crystallized glass, flat wall materials are attached to each other at the corner of the building (Patent Document 3), A curved wall material obtained by bending the material into an arc shape is attached (Patent Documents 4 and 5).

JP 2009-073726 A JP 2009-173526 A JP 63-107832 A Japanese Patent Laid-Open No. 5-116973 JP 2000-327349 A

  However, when a conventional crystallized glass wall material is used, the wall material becomes discontinuous at the corners of the wall surface and there is no sense of unity, and there is a possibility that water leakage may occur at the mating part of the wall materials. There was a difficulty. In addition, there is a difficulty in that a curved processed product cannot be used in an angular corner. Further, these crystallized glass wall materials have been required to be further reduced in weight.

  The present invention was made in view of the above-mentioned difficulties in the conventional crystallized glass wall material, has a sense of unity, has no gap to cause water leakage, and has an angular bent corner. It is an object of the present invention to provide a crystallized glass article that can be constructed and can be further reduced in weight and a method for producing the same.

  The present invention includes a first sintered body made of crystallized glass in which needle-like crystals are precipitated from the interface between a plurality of glass subregions fused together, and a plurality of glass subregions fused together. A second sintered body made of crystallized glass with acicular crystals precipitated from the interface toward the inside, and the second sintered body is fused to a part of one surface of the first sintered body It is characterized by being integrated.

  In the present invention, the first sintered body and the second sintered body have a flat plate shape, and the flat surface of the first sintered body and the flat surface of the second sintered body are perpendicular to each other. It is characterized by that.

  Further, the present invention is characterized in that the end of the first sintered body and the end of the second sintered body are fused and integrated.

Further, the present invention, the crystallized glass, _SiO 2 45 to _75% by _{mass%, Al 2 O 3 1~15%} , CaO 5~25%, 0~15% ZnO, BaO 0~15%, MgO _{0~2%, SrO 0~2%, K} 2 O 0~5%, Na 2 O 0.5~10%, B 2 O 3 0.05~5%, Li 2 O 0~2%, Sb 2 It contains O ₃ 0 to 1% and As ₂ O ₃ 0 to 1%, and is characterized in that β-wollastonite is precipitated as the main crystal.

  Further, the present invention arranges a first sintered body made of crystallized glass in which needle-like crystals are precipitated from the interface between a plurality of small glass regions fused to each other in a fireproof mold. A partitioning step for forming a fusion-scheduled portion of the first sintered body by partitioning a part of the upper surface of the first sintered body disposed in the mold with a fireproof partition member; A plurality of crystals having a property that, when heat-treated at a temperature higher than the softening point, the needle-like crystals are precipitated from the surface toward the inside while being softened and deformed in the fusion-bonded portion of the first sintered body partitioned by the partition member An accumulation step of accumulating the crystalline glass bodies, and heating the whole mold to melt the crystalline glass bodies and depositing acicular crystals to form a second sintered body and the fusion schedule A heat treatment step for fusing and integrating the first sintered body in the part, Characterized in that it contains.

  Further, the present invention arranges a first sintered body made of crystallized glass in which needle-like crystals are precipitated from the interface between a plurality of small glass regions fused to each other in a fireproof mold. An arrangement step, a partitioning step of forming a fusion-bonded portion of the first sintered body by partitioning a side surface of the first sintered body disposed in the mold with a fire-resistant partition member, and the partition member A plurality of crystalline glass small particles having the property of acicular crystals precipitating from the surface toward the inside while being softened and deformed when heat-treated at a temperature higher than the softening point at the fusion target portion of the first sintered body partitioned by An accumulating step for accumulating the body, and heating the entire formwork to form a second sintered body by precipitating the acicular crystals while fusing the crystalline glass bodies together, and A heat treatment step for fusing and integrating with the first sintered body. And wherein the door.

Further, according to the present invention, the crystalline glass body is an inorganic material selected from the group consisting of CoO, Co ₃ O ₄ , NiO, Fe ₂ O ₃ , MnO, SnO ₂ and ZrO ₂ , which are transition metal oxides. It contains a pigment.

  According to the crystallized glass article according to the present invention, since the first sintered body and the second sintered body are fused and integrated, there is a sense of unity, there is no gap that causes water leakage, and it is angular. It can also be applied to bent corners, and further weight reduction can be achieved.

  Moreover, the manufacturing method of the crystallized glass article which concerns on this invention can manufacture the said crystallized glass article efficiently.

It is the whole crystallized glass article perspective view of a first embodiment. It is a schematic sectional drawing explaining the manufacturing method of the crystallized glass article of 1st embodiment. It is the whole crystallized glass article perspective view of a second embodiment. It is a schematic sectional drawing explaining the manufacturing method of the crystallized glass article of 2nd embodiment. It is the whole crystallized glass article perspective view of a third embodiment. It is a schematic sectional drawing explaining the manufacturing method of the crystallized glass article of 3rd embodiment. It is a schematic sectional drawing explaining the modification of the manufacturing method of the crystallized glass article of 3rd embodiment.

"First embodiment"
As shown in FIG. 1, the crystallized glass article 10 of the first embodiment is configured such that the end of the first sintered body 11 and the end of the second sintered body 12 are fused and integrated. . The first sintered body 11 and the second sintered body 12 have a flat plate shape, and a part 11b of one flat surface 11a of the first sintered body 11 and a thickness surface of the second sintered body 12. All of 12a are fused and integrated. And the other flat plate surface 11c of the 1st sintered compact 11 used as the design surface of the crystallized glass article 10 and the flat plate surface 12b of the 2nd sintered compact 12 used also as a design surface are perpendicular | vertical. Yes. That is, in the crystallized glass article 10, the flat plate-shaped second sintered body 12 protrudes in the thickness direction of the first sintered body 11 at a part 11 b of the flat plate surface 11 a of the flat plate-shaped first sintered body 11. And has a L-shaped cross section.

  The first sintered body 11 is composed of crystallized glass in which a plurality of small glass regions are fused together, and acicular β-wollastonite is precipitated as a main crystal from the interface between the small glass regions toward the inside. ing. In addition, you may comprise the 1st sintered compact 11 by the crystallized glass which the diopside needle-like crystal precipitated as the main crystal toward the inside from the interface of small glass regions.

  The second sintered body 12 is also composed of crystallized glass in which a plurality of small glass regions are fused together, and acicular β-wollastonite is precipitated as a main crystal from the interface between the small glass regions. Has been. The second sintered body 12 only needs to be composed of the same crystallized glass as that of the first sintered body 11 or a crystallized glass having the same or similar basic glass component, and are fused and integrated. Any material may be used as long as it does not cause cracks that lower the bonding strength on the bonding surfaces (11b, 12a). Further, in consideration of the design of the design surface, it may be composed of crystallized glass having different patterns, crystallized glass having different colors, or the like.

  Thus, in the crystallized glass article 10 of the first embodiment, the first sintered body 11 and the second sintered body 12 are fused and integrated, and the flat plate of the first sintered body 11 serving as a design surface. Since the thickness surface 11d orthogonal to the surface 11c and the flat plate surface 12b of the second sintered body 12 extend without a gap, for example, even if construction is performed on an angular corner of a building, the appearance is not good. There is no possibility of water leakage without being continuous.

In the crystallized glass article according to the present invention, crystallized glass, _SiO 2 45 to _75% by _{mass%, Al 2 O 3 1~15%} , CaO 5~25%, 0~15% ZnO, BaO 0~15 _{%, 0~2% MgO, SrO 0~2} %, K 2 O 0~5%, Na 2 O 0.5~10%, B 2 O 3 0.05~5%, Li 2 O 0~2% , Sb ₂ O ₃ 0 to 1%, As ₂ O ₃ 0 to 1%, and the precipitation of β-wollastonite as the main crystal has a marble-like appearance and sufficient strength. It is preferable in realization.

  The reason why the content of each component of the crystallized glass is limited will be described below.

SiO ₂ is a component of β-wollastonite that precipitates as acicular crystals from the surface to the inside. When the content of SiO ₂ is higher than 75%, the melting temperature of the glass increases and the viscosity increases. Therefore, the fluidity during heat treatment tends to deteriorate. On the other hand, if it is less than 45%, devitrification at the time of molding tends to be strong. The content of SiO ₂ is preferably 45 to 75%.

Al ₂ O ₃ is a component that suppresses devitrification, and if its content is more than 15%, the solubility of the glass deteriorates, and dissimilar crystals (for example, anorthite) precipitate, resulting in poor fluidity during heat treatment. Tend to be. On the other hand, when Al ₂ O ₃ is less than 1%, devitrification becomes strong and chemical durability tends to be lowered. The content of Al ₂ O ₃ is preferably 1 to 15%.

  CaO is a component of β-wollastonite, and if its content is more than 25%, devitrification tends to be strong and molding tends to be difficult, and the amount of β-wollastonite crystals precipitated is high. It becomes too much to obtain desired surface smoothness. On the other hand, when CaO is less than 5%, the amount of β-wollastonite is excessively reduced and the mechanical strength tends to decrease. The content of CaO is more preferably 9 to 11%.

  ZnO is a component added to promote the fluidity of the glass during crystallization. If the ZnO content is more than 15%, β-wollastonite crystals tend to be difficult to precipitate. The content of ZnO is preferably 0 to 15%.

  BaO, like ZnO, is a component that exhibits the effect of promoting the fluidity of glass. When BaO is more than 15%, the amount of β-wollastonite crystals precipitated tends to decrease. The BaO content is preferably 0 to 15%.

  MgO and SrO are also components that show the effect of promoting the fluidity of glass, like ZnO. When the content is more than 2%, different types of crystals are precipitated and it becomes difficult to obtain desired smoothness. The content of MgO and SrO is preferably 0 to 2%.

Na ₂ O is an alkaline component that lowers the viscosity of the crystalline glass. If its content is more than 10%, the chemical durability tends to deteriorate and the expansion coefficient tends to increase, such being undesirable. If it is less than 0.5%, the viscosity of the glass will increase and the solubility and fluidity will tend to deteriorate. The content of Na ₂ O is preferably 0.5 to 10%.

K ₂ O is an alkaline component that lowers the viscosity of the crystalline glass, and if its content is more than 5%, the chemical durability tends to decrease. The content of K ₂ O is preferably 0 to 5%.

B ₂ O ₃ is a component that lowers the viscosity of the crystalline glass without changing the thermal expansion coefficient of the crystallized glass. If its content is less than 0.05%, the fluidity of the glass becomes poor. The surface smoothness tends not to be obtained. On the other hand, if the amount of B ₂ O ₃ is more than 5%, different types of crystals are precipitated and the desired characteristics tend not to be obtained. The content of B ₂ O ₃ is more preferably 0.2 to 0.4%.

Li ₂ O is a component that shows the effect of increasing the crystallization speed and the effect of promoting fluidity. When the content exceeds 2%, the chemical durability is lowered, and the viscosity is excessively lowered. This is not only preferable, but also tends to increase the expansion coefficient. The content of Li ₂ O is preferably 0 to 2%.

Sb ₂ O ₃ and As ₂ O ₃ are components that function as fining agents, but it is not preferable in terms of environmental hygiene that their content exceeds 1%. The content of Sb ₂ O ₃ and As ₂ O ₃ is preferably 0 to 1%.

  Next, the manufacturing method of the crystallized glass article 10 of the first embodiment will be described with reference to FIG.

  First, a flat plate-shaped first sintered body 11 made of crystallized glass in which needle-like crystals are precipitated from the interface between a plurality of glass small regions fused together is produced by a conventionally known integration method.

  Next, as shown in FIG. 2A, an arrangement step of arranging the first sintered body 11 in the fireproof mold 13 is performed. In the present embodiment, a mold 13 having a bottom surface substantially the same shape as the flat plate surface 11a of the first sintered body 11 is prepared, and the first sintered body 11 is arranged in a flat state in the mold 13. Thus, the four thickness surfaces (side surfaces) of the first sintered body 11 are covered with the inner wall surface of the mold 13. The mold surface of the mold 13 is preliminarily coated with alumina powder as a mold release agent and is laid with alumina paper.

  Next, as shown in FIG. 2 (b), the first sintered body 11 is melted by partitioning a part of the upper surface of the first sintered body 11 disposed in the mold 13 with a fire-resistant partition member 14. A partitioning step for forming the planned wearing portion M1 is performed. In this embodiment, by partitioning a part 11b of one flat plate surface 11a, which is the upper surface of the first sintered body 11 in a flat state, with a partition member 14, the end of the flat plate-shaped first sintered body 11 is formed. A fusion target portion M1 is formed. The partition member 14 is preliminarily coated with alumina powder as a release agent, and is provided with alumina paper. Further, when there is a possibility that the partition member 14 sinks to the first sintered body 11 side due to its own weight or the like during the heat treatment step described later, the partition member 14 is preferably fixed to the mold 13.

  Next, as shown in FIG. 2 (c), when heat treatment is performed at a temperature higher than the softening point on the fusion-bonded portion M1 of the first sintered body 11 partitioned by the partition member 14, the softening deformation is caused to move from the surface to the inside. An accumulating step of accumulating a plurality of crystalline glass bodies A having the property of acicular crystals precipitating is performed. In the present embodiment, a plurality of crystalline glass bodies A are accumulated immediately above the planned fusion portion M1 of the first sintered body 11, and the entire lower surface of the accumulation layer of the crystalline glass bodies A is the fusion planned portion. Contact M1.

  And as shown in FIG.2 (d), as a heat treatment process, it puts together with the mold 13 in a heating furnace, heats, crystal needles A are deposited, fusing together crystalline glass bodies A, and flat plate shape is formed. The second sintered body 12 is formed, and the first sintered body 11 is fused and integrated in the fusion planned portion M1. Thus, the crystallized glass article 10 of the first embodiment having an L-shaped cross section is manufactured. As shown in FIG. 2D, the corner C1 of the crystallized glass article 10 manufactured in this way includes a flat plate surface 11c and a thickness surface 11d that are perpendicular to each other of the first sintered body 11 produced previously. Therefore, the squareness of the crystallized glass article 10 can be maintained at the corner C1.

  In the method for manufacturing a crystallized glass article according to the present invention, the fusion-scheduled portion M1 of the first sintered body 11 has a size that can realize sufficient bonding strength when fused and integrated with the second sintered body 12, What is necessary is just cleanliness. Further, as the fire-resistant partition member 14, for example, a material that can withstand a heat treatment temperature such as heat-resistant crystallized glass made of mullite or mullite cordierite can be used, and the shape of the first sintered body 11 can be used. In consideration of the above, partition members 14 such as a thick plate shape and a square bar shape can be used alone or in combination. Further, in the partitioning step (see FIG. 2B), the entire surface of the upper surface of the first sintered body 11 other than the fusion target portion M1 may be covered with the partition member.

Further, in the method for producing a crystallized glass article according to the present invention, any one of transition metal oxides CoO, Co ₃ O ₄ , NiO, Fe ₂ O ₃ , MnO, SnO ₂ and ZrO ₂ is used as a colorant. Fusion and integration of the glass body containing the pigment and the first sintered body 11 that has been sintered in advance results in the color tone of the second sintered body 12 and the first sintered body 11 having a different thermal history. It is preferable in that it can be easily adjusted and the color tone of the design surface can be adjusted.

In the present invention, it is possible that the colorant is composed of an inorganic pigment containing any one of transition metal oxides CoO, Co ₃ O ₄ , NiO, Fe ₂ O ₃ , MnO, SnO ₂ , and ZrO ₂ . It is preferable at the point which does not inhibit. When this colorant is CoO or Co ₃ O ₄ , it exhibits a blue color, when it is NiO, it exhibits an ocher color, when it is Fe ₂ O ₃ , it exhibits a reddish brown color, when it is MnO, it exhibits a milky white color, and SnO ₂ In the case of ZrO ₂ , it becomes pink. Moreover, the crystallized glass articles which exhibit various colors can be obtained by combining these colorants. Furthermore, more coloring is possible when used in combination with other oxide colorants.

"Second embodiment"
In the crystallized glass article 20 of the second embodiment, as shown in FIG. 3, the end and middle part of one first sintered body 21 and a plurality of second sintered bodies 22 are fused and integrated. Configured. The first sintered body 21 has a flat plate shape, the second sintered body 22 has a square bar shape, a plurality of portions 21b of one flat surface 21a of the first sintered body 21, and a plurality of The entire surface 22a of the second sintered body 22 is fused and integrated. And the other flat surface 21c of the 1st sintered compact 21 used as the design surface of the crystallized glass article 20 and the other face 22b of each 2nd sintered compact 22 comprise perpendicular | vertical. That is, in the crystallized glass article 20, the second sintered body 22 having a square bar shape has a first sintered body 21 in each of a plurality of portions 21 b of the flat plate surface 21 a of the flat plate-shaped first sintered body 21. It protrudes in the thickness direction and is formed in a cross-sectional comb shape.

  In the first sintered body 21 and the second sintered body 22, as in the first embodiment described above, a plurality of small glass regions are fused together, and needles are formed as main crystals from the interface between the small glass regions toward the inside. It is comprised by the crystallized glass which precipitated the beta-wollastonite and diopside.

  As described above, in the crystallized glass article 20 of the present embodiment, the plurality of second sintered bodies 22 are fused and integrated into a rib shape at a predetermined interval on one flat plate surface 21a of the first sintered body 21. Therefore, the strength can be improved while reducing the weight of the entire crystallized glass article 20.

  Next, a method for manufacturing the crystallized glass article 20 of the second embodiment will be described with reference to FIG.

  First, a flat plate-shaped first sintered body 21 made of crystallized glass in which needle-like crystals are precipitated from the interface between a plurality of small glass regions fused together is produced by a conventionally known integration method.

  Subsequently, the arrangement | positioning process which arrange | positions the 1st sintered compact 21 in the fireproof formwork 23 is performed. Similar to the first embodiment described above, a mold 23 having a bottom surface substantially the same shape as the flat plate surface 21a of the first sintered body 21 is prepared, and the first sintered body 21 is placed flat in the mold 23. By arranging in this manner, the thickness surfaces (side surfaces) of the four circumferences of the first sintered body 21 are covered with the inner wall surface of the mold 23. The mold surface of the mold 23 is preliminarily coated with alumina powder as a mold release agent and is laid with alumina paper.

  Next, a plurality of portions to be welded M2 of the first sintered body 21 are partitioned by partitioning a plurality of parts of the upper surface of the first sintered body 21 disposed in the mold 23 with a plurality of fire-resistant partition members 24. A partitioning step for forming is performed. In the present embodiment, a plurality of part 21 b of one flat plate surface 21 a that is the upper surface of the flatly-placed first sintered body 21 is partitioned by a plurality of partition members 24, thereby forming a flat plate-shaped first sintered body. A plurality of planned fusion portions M <b> 2 are formed at the end portion and the middle portion of 21. As in the first embodiment described above, each partition member 24 is preliminarily coated with alumina powder as a release agent and is provided with alumina paper. In addition, each partition member 24 may be fixed to the mold 23 in order to prevent each partition member 24 from sinking to the first sintered body 21 side during a heat treatment step to be described later.

  Next, when heat treatment is performed at a temperature higher than the softening point on the plurality of fusion bonding portions M2 of the first sintered body 21 partitioned by the partition member 24, acicular crystals are precipitated from the surface toward the inside while being softened and deformed. An accumulation process for accumulating a plurality of crystalline glass bodies A having properties is performed. Similar to the first embodiment described above, a plurality of crystalline glass bodies A are accumulated immediately above each fusion-bonded portion M2 of the first sintered body 21, and the entire lower surface of the accumulation layer by the crystalline glass bodies A is collected. Comes into contact with each fusion-scheduled portion M2.

  Then, as a heat treatment step, the entire mold 23 is put in a heating furnace and heated, and acicular crystals are precipitated while fusing the crystalline glass bodies A together to form a square bar-shaped second sintered body 22. At the same time, the flat plate-shaped first sintered body 21 is fused and integrated in the plurality of fusion planned portions M2. Thus, the crystallized glass article 20 of the second embodiment is manufactured.

"Third embodiment"
As shown in FIG. 5, the crystallized glass article 30 of the third embodiment is configured such that the end of the first sintered body 31 and the end of the second sintered body 32 are fused and integrated. . The first sintered body 31 and the second sintered body 32 have a flat plate shape, and a part of one flat surface 32a of the first sintered body 31 and one thick surface 31a of the second sintered body 32. 32b is fused and integrated. And one flat surface 31b of the first sintered body 31 that becomes the design surface of the crystallized glass article 30 and another flat surface 32c of the second sintered body 32 that also becomes the design surface are perpendicular to each other. Yes. In other words, the crystallized glass article 30 has a cross-sectional surface L in which a flat plate-shaped second sintered body 32 projects in the thickness direction of the first sintered body 31 on one thickness surface 31a of the flat plate-shaped first sintered body 31. It is formed in a letter shape.

  Thus, in the crystallized glass article 30 of the third embodiment, the first sintered body 31 and the second sintered body 32 are fused and integrated, and the flat plate of the first sintered body 31 that becomes the design surface. Since the surface 31b and one thickness surface 32d of the second sintered body 32 extend without a gap, and the flat surface 32c of the design surface is orthogonal to the thickness surface 32d, for example, an angular bending of a building Even if it is applied to the corner, the appearance does not become discontinuous and there is no risk of water leakage.

  Next, a method for manufacturing the crystallized glass article 30 of the third embodiment will be described with reference to FIG.

  First, a flat plate-shaped first sintered body 31 made of crystallized glass in which needle-like crystals are precipitated from the interface between a plurality of glass small regions fused together is produced by a conventionally known integration method.

  Next, as shown in FIG. 6A, an arrangement step of arranging the first sintered body 31 in the fireproof mold 33 is performed. In the present embodiment, a mold 33 having a bottom surface that is slightly larger in one direction than the other flat plate surface 31 c of the first sintered body 31 is prepared, and the first sintered body 31 is placed flat in the mold 33. By arranging in the state, the other three thickness surfaces (side surfaces) except the one thickness surface 31 a of the first sintered body 31 are covered with the inner wall surface of the mold 33. The mold surface of the mold 33 is preliminarily coated with alumina powder as a release agent, and is laid with alumina paper.

  Next, as shown in FIG. 6B, the first sintered body 31 is fused by partitioning all of the side surfaces of the first sintered body 31 disposed in the mold 33 with a fire-resistant partition member 34. A partitioning process for forming the planned portion M3 is performed. In the present embodiment, all of the one thickness surface 31 a which is the side surface of the first sintered body 31 in a flat state is partitioned by the partition member 34, thereby being fused to the end of the flat plate-shaped first sintered body 31. A planned portion M3 is formed. The partition member 34 is preliminarily coated with alumina powder as a release agent, and is provided with alumina paper. In addition, the partition member 34 may be fixed to the mold 33 in order to prevent the partition member 34 from sinking toward the first sintered body 31 during a heat treatment step described later. Furthermore, by covering a part of the lower side of the thickness surface 31a of the first sintered body 31 with another partition member, only a part of the upper side of the side surface of the first sintered body 31 is a portion to be fused. You may partition as follows.

  Next, as shown in FIG. 6 (c), when heat treatment is performed at a temperature higher than the softening point on the fusion target portion M3 of the first sintered body 31 partitioned by the partition member 34, the softening deformation is caused to move from the surface to the inside. An accumulating step of accumulating a plurality of crystalline glass bodies A having the property of acicular crystals precipitating is performed. In this embodiment, a plurality of crystalline glass bodies A are accumulated on the side of the fusion-bonded portion M3 of the first sintered body 31, and the lower part of the side surface of the accumulation layer of the crystalline glass bodies A is the first firing. It contacts the fusion planned portion M3 of the bonded body 31.

  And as shown in FIG.6 (d), as a heat treatment process, it puts into the heating furnace with the mold 33, and heats it, while acicular crystal | crystallization small bodies A are melt | fused, acicular crystal | crystallization is deposited, flat plate shape While forming the 2nd sintered compact 32, it fuses and integrates with the 1st sintered compact 31 in the fusion | melting plan part M3. Thus, the crystallized glass article 30 of the third embodiment having an L-shaped cross section is manufactured. The corner C3 of the crystallized glass article 30 manufactured in this way is formed by molding a plurality of crystalline glass bodies A with a mold 33 as shown in FIGS. 6 (c) and 6 (d). Therefore, the corner C3 of the crystallized glass article 30 can be formed at a right angle.

  In addition, in the manufacturing method of the crystallized glass article of the third embodiment, in the partitioning step (see FIG. 6B), only one thickness surface 31a that becomes the side surface of the first sintered body 31 in a flat state is provided. By partitioning with the partition member 34, the fusion target portion M3 is formed only on one thickness surface 31a of the first sintered body 31. For example, as shown in FIG. The partition member 34 includes not only the one thick surface 31a which becomes the side surface of the bonded body 31 but also a part 31d of the flat plate surface 31c which is adjacent to the thick surface 31a and which is a part of the upper surface of the first sintered body 31. By partitioning, the first sintered body 31 may be partitioned so that the one thickness surface 31a and the part 31d of the flat plate surface 31c serve as the fusion planned portion M4. Thus, the end portion of the first sintered body 31 can be embedded in the end portion of the second sintered body 32 and fused and integrated, and the first sintered body 31 and the second sintered body 32 It is possible to improve the bonding strength.

  As mentioned above, although the crystallized glass article and its manufacturing method of 1st embodiment-3rd embodiment were demonstrated, this invention can be implemented also with another form. That is, the present invention can be carried out in a mode in which various improvements, modifications, and variations are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention. In addition, any invention-specific matters may be replaced with other technologies within the scope where the same action or effect occurs, and the integrally-configured invention-specific matters are constituted by a plurality of members. Alternatively, the invention-specific matters configured from a plurality of members may be implemented in an integrated configuration.

  An example of the crystallized glass article 10 of the first embodiment will be described with reference to FIGS. 1 and 2.

First, in terms of mass%, SiO ₂ 60%, Al ₂ O ₃ 6.5%, B ₂ O ₃ 0.5%, CaO 10%, ZnO 6.5%, BaO 11%, Na ₂ O 3%, K ₂ A glass raw material mixture prepared to have a composition of O 2% and Sb ₂ O ₃ 0.5% was melted at 1400 to 1500 ° C. for 16 hours. Next, a crystalline glass body A having a particle size of 5 mm or less was produced by a known water granulation method. When this crystalline glass body A is heat-treated at a temperature higher than the softening point (about 800 ° C.), β-wollastonite precipitates as the main crystal while softening and deforming, and the crystallinity is about 15% and the thickness is 1 mm. It becomes a crystallized glass having milky white translucency with an average transmittance of 50%.

  Next, the crystalline glass body A is weighed so that the thickness after firing is 15 mm, and is accumulated in a mold made of mullite coated with alumina powder, and then heat treated at 1090 ° C. for 2 hours to obtain a thickness. A first sintered body 11 made of white crystallized glass having a plate shape of 15 mm was obtained.

  Next, as shown in FIG. 2, the first sintered body 11 is placed flat in a fireproof mold 13, and a part 11 b of the flat plate surface 11 a of the first sintered body 11 is partitioned by a partition member 14 and melted. A planned wearing portion M1 was formed. Next, a plurality of crystalline glass bodies having a property that, when heat-treated at a temperature higher than the softening point, the fusion-bonded portion M1 partitioned by the partitioning member 14 is softened and deformed, and acicular crystals are precipitated from the surface toward the inside. A was accumulated.

  Then, when the entire mold 13 was put in a heating furnace and fired at about 1100 ° C., the crystalline glass body A and the first sintered body 11 were fused and integrated to obtain an L-shaped crystallized glass article 10. .

As shown in FIG. 1, the obtained L-shaped crystallized glass article 10 has a thickness surface 11 d orthogonal to the flat plate surface 11 c of the first sintered body 11 serving as a design surface and a flat plate of the second sintered body 12. Since the surface 12b extends without a gap, a so-called “pin angle” is formed with an angular corner portion, and there is almost no difference in the whiteness of the corner portion and the color tone of the color coordinates. It was continuous. Moreover, the bending strength of the fixed part which fixed the 1st sintered compact 11 part of the L-type crystallized glass article 10 and applied the load to the front-end | tip part of the 2nd sintered compact 12 is 250 kg / cm < ² >, and a wall surface It had sufficient practical strength as a building material for constructing.

  The crystallized glass article according to the present invention can be used as an interior / exterior material for a building or a decorative material.

10, 20, 30 Crystallized glass article 11, 21, 31 First sintered body 11a, 21a, 31b One flat plate surface 11b, 21b Part of one flat plate surface 11c, 21c, 31c Other flat plate surface 31d Other Part of flat surface 11d, 31a Thickness surface 12, 22, 32 Second sintered body 12a, 32d One thickness surface 12b, 32a One flat surface 32b Part of one flat surface 32c Other flat surface 22a Surface 22b Other surfaces 13, 23, 33 Molds 14, 24, 34 Partition member A Crystalline glass bodies M1, M2, M3, M4 Planned fusion portions

Claims (7)

A first sintered body made of crystallized glass in which needle-like crystals are precipitated from the interface between a plurality of glass subregions fused together, and from the interface between a plurality of glass subregions fused together to the inside. A second sintered body made of crystallized glass on which needle-like crystals are deposited,
A crystallized glass article, wherein the second sintered body is fused and integrated with part of one surface of the first sintered body.   The first sintered body and the second sintered body have a flat plate shape, and the flat plate surface of the first sintered body and the flat plate surface of the second sintered body are perpendicular to each other. The crystallized glass article according to claim 1.   The crystallized glass article according to claim 1 or 2, wherein an end portion of the first sintered body and an end portion of the second sintered body are fused and integrated. The crystallized glass, _SiO 2 45 to _75% by _{mass%, Al 2 O 3 1~15%} , CaO 5~25%, 0~15% ZnO, BaO 0~15%, 0~2% MgO, SrO _{0~2%, K 2 O 0~5%} , Na 2 O 0.5~10%, B 2 O 3 0.05~5%, Li 2 O 0~2%, Sb 2 O 3 0~1% 4. The crystallized glass according to claim 1, wherein the crystallized glass contains As ₂ O ₃ 0 to 1%, and β-wollastonite is precipitated as a main crystal. Goods. An arrangement step of arranging a first sintered body made of crystallized glass in which needle-like crystals are precipitated from the interface between a plurality of small glass regions fused to each other in a fireproof mold,
A partitioning step of forming a part to be fused of the first sintered body by partitioning a part of the upper surface of the first sintered body disposed in the mold with a fire-resistant partition member;
A plurality of crystals having a property that, when heat-treated at a temperature higher than the softening point, the needle-like crystals are precipitated from the surface toward the inside while being softened and deformed in the fusion-bonded portion of the first sintered body partitioned by the partition member An accumulation process for accumulating functional glass bodies,
The entire mold is heated to fuse the crystalline glass bodies together to precipitate needle-like crystals to form a second sintered body and to fuse the first sintered body at the portion to be fused. A heat treatment process to be integrated;
A method for producing a crystallized glass article, comprising: An arrangement step of arranging a first sintered body made of crystallized glass in which needle-like crystals are precipitated from the interface between a plurality of small glass regions fused to each other in a fireproof mold,
A partitioning step of forming a fusion-scheduled portion of the first sintered body by partitioning a side surface of the first sintered body disposed in the mold with a fire-resistant partition member;
A plurality of crystals having a property that, when heat-treated at a temperature higher than the softening point, the needle-like crystals are precipitated from the surface toward the inside while being softened and deformed in the fusion-bonded portion of the first sintered body partitioned by the partition member An accumulation process for accumulating functional glass bodies,
The entire mold is heated to fuse the crystalline glass bodies together to precipitate needle-like crystals to form a second sintered body and to fuse the first sintered body at the portion to be fused. A heat treatment process to be integrated;
A method for producing a crystallized glass article, comprising: The crystalline glass body contains an inorganic pigment of any one of CoO, Co ₃ O ₄ , NiO, Fe ₂ O ₃ , MnO, SnO ₂ and ZrO ₂ which is a transition metal oxide as a colorant. A method for producing a crystallized glass article according to claim 5 or 6.

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