JP5168715B2 - Architectural glass article and manufacturing method thereof - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a translucent architectural glass article that can be used for building exterior materials, interior materials, and decorative materials, and a method for producing the same.

  In recent years, translucent architectural glass bricks have been used on the wall surface for the purpose of producing the appearance of buildings and the like individually. This architectural glass brick is a building material that is used as a faint light in the room during the day and as a design wall that shines by lighting up at night. It is widely used for the outer and inner walls of buildings, monuments, etc. Yes.

For example, Patent Document 1 discloses an architectural glass brick that is fused and integrated by filling a plurality of glass particles in a refractory container and heat-treating the same, and a manufacturing method thereof. In Patent Document 2, a plurality of flaky, small, or granular glasses made of one or more materials are prepared, and the glass is filled in a refractory container coated with a refractory ceramic powder. An architectural glass article to be heat treated and a method for manufacturing the same are disclosed. Patent Document 3 discloses a vitreous material having a grain-like pattern in which glass plates having different colors or appearances are laminated and fused together to be integrated.
JP-A-2005-30033 JP 2001-180953 A JP-A-4-42829

  However, architectural glass bricks or architectural glass articles according to the methods described in Patent Documents 1 and 2 have a myriad of bubbles enclosed in glass bricks by a manufacturing method in which a plurality of glass particles are accumulated and fused. Therefore, the strength decreases. Since a plurality of glass grains are accumulated and fused, it is necessary to accumulate glass grains more than twice the arbitrary thickness in order to obtain an arbitrary thickness. Is low. Since a plurality of glass grains are accumulated and fused, it is difficult to obtain a thickness accuracy. In addition, iron powder may adhere to the glass particles in the pulverization process for producing the glass particles, and if they are fused, the color may vary or the iron content may change color due to oxidation or reduction reaction due to changes over time. Or there are many problems such that impurities are mixed into a plurality of glass particles and foreign matters are enclosed.

  Moreover, since the vitreous material described in Patent Document 3 uses colored glass or crystallized glass in order to make a woodgrain pattern appear, there is a problem that transparency is low and sufficient lighting performance is not obtained. .

  The present invention has been made in view of the problems of the above-mentioned conventional architectural glass articles, and has a new appearance in which there are no large bubbles inside, high strength is maintained, and high thickness accuracy can be easily obtained. The glass product for construction and the thickness can be adjusted by the number of laminated glass plates, so the production efficiency is high with respect to the volume of the firing furnace, there is no pulverization process to produce glass particles, and iron powder and impurities are mixed Therefore, it is an object of the present invention to provide a method for producing the above-mentioned architectural glass article that does not cause discoloration or discoloration due to aging or mixing of foreign matters.

The architectural glass article according to the present invention has an average coefficient of thermal expansion at 30 to 380 ° C. of 70 × 10 ⁻⁷ / K or less, an average transmittance of 15 to 85 in a thickness range of 7 mm and a wavelength of 400 to 700 nm. %, Only 5 or more glass plates having a thickness of 0.2 to 2 mm are fused and integrated, and only the glass plates are fused and integrated in a laminated state in the forehead. It is characterized by having the following pattern.

When the average thermal expansion coefficient of the glass plate at 30 to 380 ° C. exceeds 70 × 10 ⁻⁷ / K as the glass plate used in the present invention, the probability of occurrence of cracking due to heat shock in the architectural glass article increases. It is important that the average thermal expansion coefficient is 70 × 10 ⁻⁷ / K or less.

  Moreover, as a glass plate used in the present invention, when the average transmittance in a wavelength range of 400 to 700 nm is less than 15% with a thickness of 7 mm, the visible light is almost reflected in the vicinity of the surface, so that the glass has a texture. I can't get it. On the other hand, when the average transmittance exceeds 85%, the structural material is seen through during construction. It is important that the average transmittance of the glass at a thickness of 7 mm in the wavelength range of 400 to 700 nm is 15 to 85%.

  Further, in the architectural glass article of the present invention, when the thickness of the glass plate is less than 0.2 mm, handling of the glass plate becomes difficult, and the number of laminated sheets increases, resulting in an increase in cost. On the other hand, if it exceeds 2 mm, the design of the surface that is perpendicular to the longitudinal direction in the small edge, that is, the brick, becomes poor. It is important that the thickness of the glass plate is 0.2-2 mm. Further, if the number of laminated glass plates is less than 5, the whole becomes too thin and the design is poor.

In the architectural glass article of the present invention, the surface area of one surface of the glass plate is preferably 100 mm ^{2 to} 1.44 m ² in terms of design and cost. For example, in the case of a square glass plate, if the length of one side is less than about 10 mm, the design is too small and the cost is high. On the other hand, if it exceeds about 1.2 m, it takes time for slow cooling, resulting in low productivity. In this case also, the cost increases. Moreover, it is more preferable from the point of productivity and cost that the thickness of the lamination direction of a glass plate is 10 mm-200 mm. Further, the shape of the glass plate may be a hexagon or other polygons as well as a square and a rectangle.

  Moreover, the architectural glass article of the present invention is preferable in terms of handling and the like when the width dimension with respect to the length dimension of the glass plate is 0.04 to 1.0. In the architectural glass article of the present invention, when the length dimension L with respect to the width dimension W, that is, W / L is less than 0.04, the glass sheet is too long, so that the glass sheet is likely to be damaged during cutting, handling, and transportation. This will increase costs. Further, it is not preferred because it does not have design and presence as a glass article. On the other hand, when W / L is 1, when the planar shape of the glass plate is square or chamfered, it is close to a rotationally symmetric shape such as a substantially regular octagon. On the other hand, when the width dimension with respect to the length dimension of the glass plate: W / L exceeds 1, the width dimension with respect to the length dimension of the glass plate is merely reversed. This is the same as an architectural glass article having a width dimension of 0.04 to 1.0.

  In addition, in the architectural glass article of the present invention, a glass plate that has been subjected to drilling or notching and a non-processed glass plate are laminated. Bubbles are formed by notching, and an unprocessed glass plate is one in which the surface of the glass plate remains smooth. By laminating these glass plates, it is possible to confine bubbles in a planned manner, which is advantageous in terms of design.

The method for producing a building glass article according to the present invention has an average coefficient of thermal expansion at 30 to 380 ° C. of 70 × 10 ⁻⁷ / K or less, an average transmittance in the range of 7 mm thickness and a wavelength of 400 to 700 nm. A laminated body in which only 5 or more glass plates using glass of 15 to 85% are laminated, or an aligned body in which only 5 or more glass plates are arranged with their translucent surfaces in contact with each other. The glass plates are fused and integrated with each other by heat-treating the refractory container at a temperature of 700 to 1100 ° C., and only the respective glass plates are fused and integrated in a stacked state in the mouth. It is characterized by producing the resulting linear pattern. In the manufacturing method of the present invention, storing the laminated body of glass plates or the aligned body in a refractory container means a structure in which only a laminated glass plate is finally accommodated in the refractory container. doing. That is, a laminated body made by laminating only glass plates in a fixed-shaped refractory container, or a laminated body made only of glass plates by bundling or bonding in advance is housed in a fixed-shaped refractory container. , Only glass plates arranged in a fixed-shaped refractory container to form an aligned body, or only glass plates aligned in advance by bundling or bonding, etc. may be accommodated in a fixed-shaped refractory container . Also, not limited to these, taking into consideration workability, for example, a laminated body or alignment body only formed in advance, or a laminated body formed by laminating only a glass plate on a refractory table, It may be a form in which the periphery of the alignment body formed by arranging only the glass plates is enclosed with a refractory and accommodated in a refractory container.

In the production method of the present invention, as a glass plate to be used, a glass having an average coefficient of thermal expansion at 30 to 380 ° C. of 70 × 10 ⁻⁷ / K or less was used, and the glass plate was fused and integrated. In order to maintain the translucency of the architectural glass article, it is important that the average transmittance is 15 to 85% in the range of a thickness of 7 mm and a wavelength of 400 to 700 nm. Moreover, when producing the external appearance which claimed transparency, it is preferable that a design surface is a fire-making surface.

  Moreover, when the temperature which heat-processes the refractory container which accommodated the glass plate is less than 700 degreeC, glass plates will not fully fuse | melt and it will become easy to be damaged. On the other hand, if the temperature for heat treatment exceeds 1100 ° C., the design by the stacking of small openings becomes poor. In satisfying the strength and design of the architectural glass article, it is important that the heat treatment temperature of the refractory container is in a temperature range of 700 to 1100 ° C.

  Further, in the method for manufacturing an architectural glass article according to the present invention, a glass plate that has been subjected to drilling or notching and an unprocessed glass plate are laminated. By forming a hole or a notch with a blade or the like to form a void and a space that serve to seal bubbles, such a glass plate and a glass plate with an unprocessed surface remaining smooth The air bubbles are designed systematically.

The architectural glass article according to the present invention has an average coefficient of thermal expansion at 30 to 380 ° C. of 70 × 10 ⁻⁷ / K or less, an average transmittance of 15 to 85 in a thickness range of 7 mm and a wavelength of 400 to 700 nm. % Of the glass plate with a thickness of 0.2 to 2 mm using a glass of 5% or more is fused and integrated in a laminated state, so that the pattern generated in the small edge by the lamination has a new appearance It is possible to provide an architectural glass article having excellent weather resistance and thermal shock resistance. Moreover, the architectural glass article of the present invention having excellent translucency is suitable as a decorative material for direct illumination and indirect illumination of buildings.

Further, in the architectural glass article of the present invention, the surface area of one surface of the glass plate is 100 mm ^{2 to} 1.44 m ² , so that the design and cost are excellent, and the thickness of the glass plate in the stacking direction is 10 mm to 200 mm. It is excellent in productivity and cost. Moreover, in order to obtain arbitrary thickness, if a glass plate is piled up so that it may become arbitrary thickness, since desired plate | board thickness can be implement | achieved, production efficiency becomes high with respect to the volume of a baking furnace.

  Moreover, in the architectural glass article of the present invention, when the width dimension with respect to the length dimension of the glass plate is 0.04 to 1.0, the architectural glass having a rod-like or columnar elongated shape excellent in productivity and cost. Articles can be provided.

  In addition, the architectural glass article of the present invention is formed by laminating a glass plate that has been subjected to drilling or notching and an unprocessed glass plate, so that air bubbles remaining between the glass plates are enclosed. A large number of large bubbles that can be visually confirmed inside the glass article after the amount is adjusted are not encapsulated, and the strength does not decrease.

The method for producing a building glass article according to the present invention has an average coefficient of thermal expansion at 30 to 380 ° C. of 70 × 10 ⁻⁷ / K or less, an average transmittance in the range of 7 mm thickness and a wavelength of 400 to 700 nm. A laminated body in which five or more glass plates using glass of 15 to 85% are laminated, or an array body in which five or more glass plates are arranged in contact with each other's light-transmitting surfaces are accommodated in a refractory container. Then, the glass plate is fused and integrated by heat-treating the refractory container at a temperature of 700 to 1100 ° C., so that the pattern formed on the small edge by the lamination has a novel appearance, and has high transparency and weather resistance. The glass article for construction excellent in thermal shock resistance can be produced efficiently. In addition, since there is no pulverization step for producing glass particles, impurities such as iron powder are not mixed in the architectural glass article, and there is no variation in color, discoloration due to changes over time, or mixing of foreign substances.

  Moreover, since the manufacturing method of the glass article for construction of this invention laminates | stacks the glass plate with which the drilling process or the notch process was given, and an unprocessed glass plate, it can confirm visually inside a glass article. Innumerable large bubbles are not enclosed, and a decrease in strength can be prevented.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an architectural glass article and a method for producing the same according to the present invention will be described with reference to the drawings.

As a glass article of Example 1, 140 glass plates 1a having a square shape with a thickness of 0.7 mm and a side of 100 mm are welded and integrated in a laminated state as shown in FIG. The flat surface of the glass plate 1a is a transparent light-transmitting surface, and the other side surface 1c and the bottom surface 1d are rough surfaces such as polished glass. The glass plate 1a has an average thermal expansion coefficient of 42 × 10 ⁻⁷ / K at 30 to 380 ° C., and the glass plate fusion body obtained by laminating and integrating the glass plates 1a has a thickness of 7 mm and a wavelength of 400. The average transmittance in the range of ˜700 nm is 70%.

  When producing the glass block 1 for construction, first, a refractory table coated with refractory ceramic powder is prepared. Next, an alumina sheet is placed on the refractory table, and 140 glass plates 1a each having a side of 100 mm and a thickness of 0.7 mm are stacked to form a laminate, and the alumina sheet is placed around the glass. It was set as the form accommodated in the fireproof container by arrange | positioning and providing the enclosure with the refractory material which apply | coated the fireproof ceramic powder to the outer side. Next, this refractory container was put into a heat treatment furnace and maintained at a maximum temperature of about 960 ° C. for 4 hours, and the glass plates 1 for building were produced by fusing the flat surfaces of the glass plates 1a.

  As a glass article of Example 2, as shown in FIG. 2, the architectural glass block 2 was formed by laminating 140 glass plates 2a having a thickness of 0.7 mm and a square of 100 mm on one side in the horizontal direction. The glass plate 2a has a transparent light-transmitting surface 2b, and the other side surface 2c and the bottom surface 2d are rough surfaces such as polished glass. Is.

  A refractory base coated with a refractory ceramic powder was prepared, an alumina sheet was placed thereon, and 140 glass plates 2a each having a square shape with a side of 10 cm and a thickness of 0.7 mm were formed on the alumina sheet. Place the alignment body formed in the horizontal direction with the light-transmitting surfaces in contact with each other, place an alumina sheet around the glass alignment body, and provide an enclosure with a refractory material coated with refractory ceramic powder on the outside. Therefore, it was made into the form accommodated in the fireproof container. Next, this refractory container was put in a heat treatment furnace and maintained at a maximum temperature of about 960 ° C. for 4 hours, and the flat surfaces of the glass plates 2a were fused to produce a building glass block 2.

  The obtained building glass block 2 was not damaged even by a thermal shock with a temperature difference of 60 ° C.

  As a glass article of Example 3, as shown in FIG. 3, a glass block for building 3 is a rectangle having a thickness of 0.7 mm, a side length L of 1000 mm, a width W of 50 mm, and a W / L of 0.05. 70 sheets (thickness 50 mm) of glass plates 3a are fused or integrated in a laminated state, and the flat surface 3b of the glass plate 3a is a transparent light-transmitting surface. The side surface 3c and the bottom surface 3d are rough surfaces such as polished glass. This architectural glass block 3 has the same form as the architectural glass block 1 except for the shape of the glass plate 3a, and was produced by the same manufacturing method as described above.

  In addition, as a glass plate that has been subjected to drilling or notching, for example, a glass plate in which round hole processing is formed on the surface at a rate of 20% with respect to the plate area by drilling and an unprocessed glass plate It is also possible to produce an architectural glass block in which 15 sheets are alternately laminated, and in this case, it has a design surface such as a polka dot pattern in which bubbles are systematically designed.

  The present invention is also applicable to laminated blocks made of ceramics other than glass articles, ceramics and other transparent materials, and walls using such laminated blocks.

The photograph of the architectural glass block of this invention. The photograph of the glass block for other buildings concerning the present invention. It is the photograph of the other architectural glass block which concerns on this invention, Comprising: (A) is the photograph which image | photographed the rod-shaped architectural glass block from upper direction, (B) is the photograph image | photographed from the side.

Explanation of symbols

1, 2, 3 Glass block for building 1a, 2a, 3a Glass plate 1b, 2b, 3b Translucent portion 1c, 2c, 3c Side wall portion 1d, 2d, 3d Low surface portion L Length W Width

Claims (7)

The average thermal expansion coefficient at 30 to 380 ° C. is 70 × 10 ⁻⁷ / K or less, the average transmittance in the wavelength range of 400 to 700 nm at a thickness of 7 mm is 15 to 85%, and the thickness is 0.2. Only a glass plate of ˜2 mm is fused and integrated, and the building has a linear pattern resulting from fusing and integrating only each of the glass plates in a laminated state in the forehead. Glass articles for use. ^2. The architectural glass article according to claim 1, wherein the surface area of one surface of the glass plate is 100 mm ^{2 to} 1.44 m ² .   The architectural glass article according to claim 1 or 2, wherein a width dimension with respect to a length dimension of the glass plate is 0.04 to 1.0.   The architectural glass article according to any one of claims 1 to 3, wherein the glass plate has a thickness in the stacking direction of 10 mm to 200 mm. The architectural glass article according to any one of claims 1 to 4 , wherein a glass plate that has been subjected to drilling or notching and an unprocessed glass plate are laminated. Only glass plates using glass having an average coefficient of thermal expansion at 30 to 380 ° C. of not more than 70 × 10 ⁻⁷ / K and a wall thickness of 7 mm and an average transmittance of 15 to 85% in the wavelength range of 400 to 700 nm. A laminate obtained by laminating 5 or more sheets, or an alignment body in which only 5 or more glass plates are arranged in a state where their translucent surfaces are in contact with each other is housed in a refractory container, and the refractory container is 700 to 1100 ° C. The glass plates are fused and integrated with each other by heat treatment at a temperature of, and a linear pattern resulting from fusing and integrating only each of the glass plates in a stacked state is produced in the forehead. A method of manufacturing architectural glass articles. The method for producing an architectural glass article according to claim 6 , wherein a glass plate that has been subjected to drilling or notching and an unprocessed glass plate are laminated.