WO2011118375A1 - Charge destinée à une cuve de production de verre, couche de remplissage destinée à une cuve de production de verre, appareil de production de verre, et procédé de production de cet appareil de production de verre - Google Patents

Charge destinée à une cuve de production de verre, couche de remplissage destinée à une cuve de production de verre, appareil de production de verre, et procédé de production de cet appareil de production de verre Download PDF

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Publication number
WO2011118375A1
WO2011118375A1 PCT/JP2011/055306 JP2011055306W WO2011118375A1 WO 2011118375 A1 WO2011118375 A1 WO 2011118375A1 JP 2011055306 W JP2011055306 W JP 2011055306W WO 2011118375 A1 WO2011118375 A1 WO 2011118375A1
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WIPO (PCT)
Prior art keywords
glass
filler
container
glass production
mass
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PCT/JP2011/055306
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English (en)
Japanese (ja)
Inventor
真 東條
正隆 川口
孝志 相徳
仁 金谷
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日本電気硝子株式会社
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Application filed by 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Priority to JP2011510773A priority Critical patent/JP5776548B2/ja
Publication of WO2011118375A1 publication Critical patent/WO2011118375A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/167—Means for preventing damage to equipment, e.g. by molten glass, hot gases, batches
    • C03B5/1672—Use of materials therefor
    • C03B5/1675—Platinum group metals

Definitions

  • the present invention relates to a filler for a glass production container, a filler layer for a glass production container formed by firing the glass, a glass production apparatus including the same, and a method for producing the glass production apparatus.
  • the present invention relates to a coating material for forming a fired film on the surface of a noble metal glass production container, comprising a glass production container having a glass component coated on the surface and a support material.
  • the present invention relates to a filler for a glass production container filled in between, a filler layer for a glass production container formed by firing it, a glass production apparatus including the same, and a method for producing the glass production apparatus.
  • a glass production container for producing high-quality glass such as optical glass and display glass
  • a glass production container made of a noble metal such as Pt or an alloy containing a noble metal hereinafter referred to as “Pt container”.
  • Pt container a glass production container made of a noble metal such as Pt or an alloy containing a noble metal
  • the container for glass manufacture is normally fixed by the outer side being covered with a support material, and the filler being filled and solidified in the gap between the container for glass manufacture and the support material.
  • non-alkali glass that is substantially free of alkali metal components and used as display glass has a high viscosity even at high temperatures and is difficult to defoam. Cheap.
  • Patent Documents 1 to 4 propose a method for suppressing the generation of bubbles due to moisture in glass when a container made of Pt or an alloy containing Pt is used. ing.
  • Patent Document 1 by controlling the partial pressure of hydrogen outside the Pt container with respect to the partial pressure of hydrogen inside the Pt container at the time of glass production, bubbles caused by moisture in the glass are controlled. A method for suppressing the occurrence has been proposed.
  • Patent Documents 2 and 3 a method for suppressing the generation of bubbles due to moisture in the glass by reducing the hydrogen permeability of the Pt container by applying a glass barrier coating to the outer surface of the Pt container is proposed. Has been.
  • Patent Documents 2 to 4 when a barrier coating layer containing a glass component is formed on the outer surface of a Pt container to suppress generation of bubbles due to moisture in the glass, It is not always necessary to continue supplying hydrogen.
  • Patent Document 4 when the outer surface of a Pt container is coated with a coating material containing a refractory component such as alumina particles and silica particles together with a glass component, described in Patent Documents 2 and 3.
  • a coating material containing a refractory component such as alumina particles and silica particles together with a glass component.
  • the present invention has been made in view of the above points, and its purpose is to provide a container body and a support material, the surface of which is coated with a coating material for forming a fired film on the surface of a glass manufacturing container made of precious metal. It is an object of the present invention to provide a filler for glass production containers that can be formed between the two, and can form a fired coating film that does not easily react with the coating material and has a high hydrogen shielding property in the coating material firing step.
  • the filler for a glass production container according to the present invention is used to form a fired film on the surface of a glass production container made of a noble metal, and the glass production container and the support material having a coating material containing a glass component coated on the surface. It is a filler filled in between.
  • the “glass production container” refers to a member having an inner surface in contact with the glass melt and an outer surface not in contact with the glass melt and capable of holding or transporting the glass melt.
  • the “glass production container” includes a container capable of holding a glass melt such as a melting tank, a clarification tank, and a stirring tank, a glass transport pipe capable of transporting the glass melt, and a molding member.
  • the “forming member” refers to a member used for forming a glass melt into a member having a predetermined shape.
  • the “molding member” includes a molding sleeve, a nozzle, and the like.
  • a glass production container made of noble metal refers to a glass production container made of a noble metal or an alloy containing a noble metal.
  • the noble metal include Pt, Rh, Ir, Pd, Au and the like.
  • the alloy containing a noble metal include an alloy containing one or more selected from the group consisting of Pt, Rh, Ir, Pd and Au.
  • Specific examples of the alloy containing a noble metal include a Pt / Rh alloy, a Pt / Ir alloy, and a Pt / Pd alloy.
  • the “support material” is a member for supporting the glass manufacturing container.
  • the support material is made of, for example, a refractory provided around the glass manufacturing container.
  • the filler for glass production containers according to the present invention contains a glass component. For this reason, it is hard to react with the coating material containing a glass component compared with the filler like the mortar which does not contain the conventional glass component, for example. Therefore, by using the filler for glass production containers according to the present invention, it is possible to suppress a deviation in the composition of the fired film due to the reaction between the coating material and the filler. That is, by using the filler for glass production containers according to the present invention, a fired film having a desired composition and high hydrogen gas shielding properties can be formed. Therefore, it is possible to manufacture a glass manufacturing apparatus in which hydrogen gas bubbles are less likely to be generated in the glass melt.
  • the glass component content in the glass production container filler is preferably close to the glass component content in the coating material.
  • the content of the glass component in the coating material is preferably 20% by mass or more, and more preferably 45% by mass or more.
  • content of the glass component in the filler for glass manufacturing containers is also 20 mass% or more, and it is more preferable that it is 45 mass% or more.
  • the glass component content in the glass production container filler is in the range of 0.9 to 1.5 times the glass component content in the coating material.
  • the type and form of the glass component are not particularly limited.
  • a form of the glass component for example, glass powder can be used.
  • the glass component is preferably borosilicate glass or silicate glass, for example, borosilicate glass or silicate glass with a low content of alkali metal or alkaline earth metal. More preferably. It is preferable that the kind of glass component contained in the filler for glass manufacturing containers is substantially equal to the kind of glass component contained in the coating material.
  • the glass component includes crystallized glass.
  • the filler for glass production containers needs to contain a glass component.
  • the glass component has a low melting point and is easily melted as compared with, for example, a refractory component.
  • a glass component dissolve and to fall out from a filler layer easily.
  • the filler layer contracts, and a gap may be generated between the glass production container and the support material. If it does so, it may become impossible to fix a glass manufacturing container firmly to a support material.
  • the filler for glass production containers is composed of alumina fibers and alumina fine particles having an average particle diameter in the range of 5 nm to 50 nm (hereinafter referred to as “alumina fine particles having an average particle diameter in the range of 5 nm to 50 nm” together with the glass component. "Is simply referred to as” alumina fine particles ").
  • alumina fine particles having an average particle diameter in the range of 5 nm to 50 nm together with the glass component.
  • alumina fine particles having an average particle diameter in the range of 5 nm to 50 nm together with the glass component.
  • alumina fine particles having an average particle diameter in the range of 5 nm to 50 nm” together with the glass component.
  • alumina fine particles having an average particle diameter in the range of 5 nm to 50 nm” together with the glass component.
  • alumina fine particles having an average particle diameter in the range of 5 nm to 50 nm alumina fine particles having an average particle diameter
  • the “average particle diameter” means D 50 (volume-based average particle diameter), which is a value measured by a laser diffraction / scattering particle size distribution analyzer.
  • alumina fiber is a material having an elongated shape and containing alumina as a main component.
  • the alumina fiber is preferably substantially cylindrical.
  • the diameter of the alumina fiber in the cross section is preferably about 1 ⁇ m to 30 ⁇ m.
  • the average particle diameter (fiber length) in the longitudinal direction of the alumina fiber is preferably about 20 ⁇ m to 300 ⁇ m.
  • the ratio of the average particle diameter in the longitudinal direction of the alumina fiber to the diameter in the cross section of the alumina fiber ranges from 2 to 200 It is preferable to be within.
  • the alumina fiber may be composed only of alumina, or may contain alumina as a main component and further contain other than alumina as a subcomponent.
  • the content of alumina in the alumina fiber is preferably 60% by mass or more, and more preferably 90% by mass or more.
  • the reason why the glass component can be prevented from falling off from the filler layer when the coating material is baked by including the alumina fiber in the filler for the glass production container is as follows. That is, it is considered that the alumina fiber having an elongated shape and having a high melting point plays a role as a structure maintaining member for the filler layer, so that the structure of the filler layer is not easily broken.
  • the reason why the glass component can be prevented from falling off from the filler layer during firing of the coating material by including the alumina fine particles in the filler for glass production container is as follows. That is, the alumina fine particles having a small average particle diameter are easily dissolved in the glass component at the time of firing the coating material even at a low temperature. For this reason, when alumina fine particles are contained in the filler for glass production containers, it dissolves in the glass component from a relatively low temperature when the coating material is fired. As a result, the viscosity of the glass component increases from the low temperature. Therefore, it becomes difficult for the glass component to fall off the filler layer.
  • the alumina fine particles having a small average particle diameter are highly reactive, and easily generate crystals with a high melting point together with other materials contained in the glass component. For this reason, when alumina fine particles are contained in the filler for glass production containers, a high melting point crystal is generated from a relatively low temperature during the firing of the coating material, and the high melting point crystal is the structure of the filler layer. It functions as a maintenance member. Therefore, it becomes difficult for the glass component to fall off the filler layer.
  • mullite is an aluminum silicate compound represented by Al 2 O 3 .nSiO 2 (where n is in the range of 1/2 to 2/3) and stable at high temperatures. Since the mullite crystals have a particularly high rigidity at high temperatures, it is particularly effective to generate mullite when the coating material is fired.
  • the filler for glass manufacturing containers contains both an alumina fiber and an alumina fine particle.
  • the glass manufacturing container filler contains both alumina fibers and alumina fine particles.
  • the structure maintaining effect by alumina fibers, the viscosity increasing effect of the glass component by dissolving the alumina fine particles in the glass component, and the high melting point crystal forming effect by the reaction of the alumina fine particles can be obtained. Dropping of the glass component from the filler layer can be more effectively suppressed.
  • the total amount of alumina fiber and alumina fine particles in the filler for glass production container is preferably 5% by mass or more. This is because if the total amount of the alumina fibers and the alumina fine particles is too small, the glass component may not be sufficiently removed from the filler layer during firing of the coating material.
  • the total amount of alumina fibers and fine alumina particles in the filler for glass production container is preferably substantially equal to the total amount of alumina fibers and fine alumina particles in the coating material.
  • the total amount of alumina fibers and alumina fine particles in the coating material is preferably 5% by mass to 25% by mass, and 5% by mass to 20% by mass. It is more preferable that Therefore, the total amount of alumina fibers and alumina fine particles in the filler for glass production containers is also preferably 5% by mass to 25% by mass, and more preferably 5% by mass to 20% by mass.
  • the content of alumina fiber in the filler for glass production container is 5% by mass to 25% by mass. It is preferably 5% by mass to 15% by mass.
  • the content of the alumina fine particles in the filler for glass production containers is 5% by mass to 20% by mass. It is preferably 5% by mass to 15% by mass.
  • the content of alumina fibers in the filler for glass production containers is preferably 5% by mass to 20% by mass.
  • the content of alumina fine particles in the filler for glass production containers is preferably 5% by mass to 20% by mass, and preferably 5% by mass to 15% by mass. .
  • the glass production container filler according to the present invention preferably contains a Si component in the glass component. If the Si component is contained in the glass component, mullite is likely to precipitate due to the reaction with the alumina fine particles. Moreover, it is preferable that the filler for glass manufacturing containers contains a silica particle. In this case, the content of silica particles is preferably 15% by mass to 35% by mass, and more preferably 20% by mass to 30% by mass. If the content of silica particles is too small, mullite crystals may be difficult to form, or the shrinkage of the filler during firing of the coating material may become too large.
  • the average particle size of the silica particles is preferably 0.5 ⁇ m to 100 ⁇ m, and more preferably 1 ⁇ m to 50 ⁇ m. If the average particle diameter of the silica particles is too small, the gap between the silica particles inside the filler becomes large, and excessive shrinkage may occur during firing. On the other hand, if the average particle diameter of the silica particles is too large, it may be difficult to dissolve in the glass, the formation of mullite will be slow, and the flow of vitreous during firing may be difficult to suppress.
  • the filler for glass production containers according to the present invention is generally used as a paste by adding water. Specifically, a paste produced by adding water to a filler for glass production containers and kneading is filled between a glass production container having a coating material coated on the surface and a support material. Then, the filler for glass manufacturing containers is also baked with the baking of the coating material, and a filler layer for glass manufacturing containers is formed between the glass manufacturing container and the support material.
  • the filler for glass manufacturing containers will shrink
  • the water content in the filler for glass production containers is small.
  • the filler for glass production containers contains a peptizer together with water, good fluidity can be obtained and high filling can be achieved even when the water content is reduced. Can do. For example, it becomes possible to reliably fill the paste-like glass production container filler even in a very narrow gap of about 5 mm. Therefore, it is preferable that the filler for glass manufacturing containers contains a peptizer with water.
  • the “peptizer” refers to a drug that peptidizes the solid content of the filler for glass manufacturing containers. Peptidation refers to the dispersion of solidified solids. Many peptizers are generally in a solution state and may be used in a state dissolved in a solvent such as water.
  • the peptizer include ammonium carboxylate polymer compounds such as polycarboxylic acid ammonium salt, sodium salt of carboxylic acid, sodium salt of phosphoric acid, and the like.
  • an ammonium carboxylate polymer compound is preferable because it has a large effect of improving the fluidity of the filler.
  • one type of these peptizers may be used, or a plurality of types of peptizers may be used in combination.
  • the content of the peptizer is preferably in the range of 0.1 to 10 parts by mass with respect to 100 parts by mass of the solid content of the glass production container filler, and is in the range of 1 to 10 parts by mass. It is preferably within the range of 1 to 9 parts by mass. If the content of the peptizer with respect to the solid content of the filler for glass production containers is too small, the effect of improving the dispersibility of the solid content by adding the peptizer may not be sufficiently obtained. On the other hand, if the content of the peptizer relative to the solid content of the filler for glass manufacturing containers is too large, the organic component contained in the peptizer itself, particularly the carbon component, reduces the glass component in the filler. The characteristic may be changed.
  • the water content is in the range of 10 to 65 parts by mass with respect to 100 parts by mass of the glass production container filler. It is preferably within a range of 15 to 60 parts by mass, and more preferably within a range of 20 to 50 parts by mass.
  • the dispersibility of solid content will worsen and the fluidity
  • the shrinkage amount of the filler for glass manufacturing containers at the time of baking may become large too much.
  • the filler layer for glass production containers according to the present invention is obtained by firing the filler for glass production containers according to the present invention.
  • the filler for glass manufacturing containers which concerns on this invention does not react easily with a coating material at the time of baking. Therefore, by using the filler layer for a glass production container according to the present invention, it is possible to produce a glass production container in which bubbles are not easily generated in the glass.
  • the firing temperature of the filler for glass production containers can be appropriately set according to the composition of the filler for glass production containers.
  • the firing temperature of the filler for glass production containers can be, for example, about 900 ° C. to 1600 ° C.
  • a glass manufacturing apparatus includes a glass manufacturing container made of a noble metal having a fired coating formed on a surface thereof, a support material, and a filler for a glass manufacturing container positioned between the glass manufacturing container and the support material.
  • the glass manufacturing container filler layer according to the present invention is used as the glass manufacturing container filler layer. For this reason, glass with few bubbles can be manufactured by manufacturing glass using the glass manufacturing apparatus of this invention.
  • the glass manufacturing apparatus is filled with the filler for a glass manufacturing container according to the present invention, for example, between a glass manufacturing container on which a coating material for forming a fired coating is applied and a support material. And it can manufacture by baking.
  • the support material is low in moisture permeability, the moisture is vaporized in the firing step, and the pressure in the region between the glass production container and the support material increases rapidly. As a result, the coating material layer and the glass manufacturing container may be damaged. Therefore, it is preferable that the support material has high moisture permeability.
  • the support material preferably has a porosity of 1% or more, more preferably 7% or more. However, if the porosity of the support material is too high, the rigidity of the support material may be too low. Therefore, the porosity of the support material is preferably 20% or less, and more preferably 15% or less.
  • the thickness of the support material is preferably in the range of 5 mm to 200 mm, and more preferably in the range of 25 mm to 100 mm.
  • the clearance between the glass production container and the support material is preferably in the range of 1 mm to 200 mm, and more preferably in the range of 1 mm to 20 mm. If the clearance between the glass production container and the support material is too small, it may be difficult to reliably fill the glass production container filler between the glass production container and the support material. On the other hand, if the clearance between the glass production container and the support material is too large, moisture may be insufficiently removed during the firing.
  • the fired film formed on the surface of the glass production container is formed by firing a coating material containing a glass component, and is for suppressing the permeation of hydrogen gas. That is, the fired coating has a lower hydrogen gas permeability than the glass production container.
  • the coating material preferably contains a glass component and a refractory component for holding the glass component.
  • the glass component contained in the coating material is not particularly limited, for example, borosilicate glass or silicate glass is preferable, and borosilicate glass having a low content of alkali metal or alkaline earth metal is preferable. A silicate glass is more preferable.
  • the content of the glass component in the coating material is not particularly limited, but is preferably 20% by mass or more, preferably 40% by mass to 70% by mass, and further preferably 50% by mass to 60% by mass. preferable.
  • the content of the glass component in the coating material is too small, the hydrogen gas shielding property of the fired film may not be sufficiently obtained.
  • the content of the glass component in the coating material is too large, the glass component tends to fall off during firing, and the shielding property of hydrogen gas may deteriorate.
  • Refractory components contained in the coating material include silica and alumina.
  • the coating material preferably contains all of the glass component, silica, and alumina.
  • the content of silica in the coating material is preferably 15% by mass to 40% by mass, and more preferably 20% by mass to 30% by mass. If the coating material contains too little silica, less silica will dissolve in the glass component and the glassy viscosity will not increase, so the coating will flow and fall off during firing, or the firing coating will have low rigidity. There is. When the content of silica in the coating material is too large, alumina is relatively decreased and the amount of mullite crystals generated is decreased, so that the rigidity of the fired film may be decreased.
  • the average particle diameter of silica contained in the coating material is preferably 50 ⁇ m or less, and more preferably 10 ⁇ m or less.
  • colloidal silica containing finer silica particles it is preferable to use colloidal silica containing finer silica particles. This is because if the average particle size of silica contained in the coating material is too large, silica will not easily dissolve in the glass component, so that the formation of mullite will be slow and it may be difficult to suppress the flow of the glass component during firing. .
  • Colloidal silica refers to silica particles having an average particle diameter of 1 nm to 30 nm dispersed in a dispersion medium.
  • the content of alumina in the coating material is preferably 10% by mass to 40% by mass, and more preferably 16% by mass to 27% by mass. If the content of alumina in the coating material is too large, the vitreous may be insufficient and cracks may occur in the fired film. If the content of alumina in the coating material is too small, the amount of alumina that dissolves in the glass component decreases, and the viscosity of the vitreous is not sufficiently high, and the glass component may fall off during firing.
  • the alumina contained in the coating material is preferably alumina particles having an average particle diameter of 1 ⁇ m to 100 ⁇ m.
  • alumina fine particles or alumina fibers having an average particle diameter of nano-order for example, 5 nm to 50 nm.
  • Alumina fine particles are rapidly dissolved in glass components. For this reason, since the viscosity of the glass component can be increased by adding alumina fine particles, it is possible to suppress the glass component from falling off during firing. Moreover, the strength of the fired film can be improved by adding alumina fiber.
  • composition of the coating material needs to be appropriately adjusted depending on the operating temperature of the glass production container.
  • the operating temperature of the glass production container is as high as 1300 ° C. or higher, it is preferable to increase the content of the refractory component or to use glass having a higher softening temperature as the glass component.
  • the manufacturing method of the glass manufacturing apparatus includes a step of applying a coating material for forming a fired film on the surface of a glass manufacturing container made of noble metal, and a step of providing a support material around the glass manufacturing container. And a step of filling a filler between the glass production container and the support material, and a step of firing the coating material and the filler to form a fired coating and a filler layer.
  • the filler contains a glass component.
  • the glass manufacturing apparatus According to the present invention, it is possible to suitably manufacture the glass manufacturing apparatus according to the present invention, which can manufacture glass with less bubbles.
  • the coating material can be applied onto the surface of the glass manufacturing container made of precious metal by, for example, spraying with a spray, or using a brush or a spatula. Especially, it is preferable to apply
  • Filling of the filler can be performed, for example, by pouring a filler having fluidity into the clearance between the glass production container and the support material.
  • a fired film is formed by firing the coating material, and a filler layer is formed by firing the filler.
  • the firing temperature of the coating material and the filler can be appropriately set according to the composition of the coating material and the filler.
  • the coating material and the fired coating can be fired at, for example, about 900 ° C. to 1600 ° C.
  • the filler and the like may be dried.
  • the present invention it is possible to provide a filler for a glass production container that is difficult to react with a coating material in the firing step of the coating material and can form a fired film having a high hydrogen shielding property.
  • FIG.1 (a) is a typical perspective view of the member for evaluation used for evaluation of a filling property and shrinkage
  • FIG. 1B is a schematic plan view of an evaluation member used for evaluation of fillability and shrinkability.
  • FIG.1 (c) is a typical side view of the member for evaluation used for evaluation of filling property and shrinkability.
  • FIG. 2 is a cross-sectional photograph of Sample 1 in the fillability evaluation.
  • FIG. 3 is a cross-sectional photograph of Sample 2 in the fillability evaluation.
  • FIG. 4 is a cross-sectional photograph of Sample 3 in the fillability evaluation.
  • FIG. 5 is a cross-sectional photograph of Sample 5 in the fillability evaluation.
  • FIG. 6 is a cross-sectional photograph of Sample 6 in the fillability evaluation.
  • FIG. 1B is a schematic plan view of an evaluation member used for evaluation of fillability and shrinkability.
  • FIG. 1B is a schematic plan view of an evaluation member used for evaluation of fillability and shrinkability.
  • FIG. 7 is a cross-sectional photograph of Sample 1 in the shrinkage evaluation.
  • FIG. 8 is a cross-sectional photograph of Sample 2 in shrinkage evaluation.
  • FIG. 9 is a cross-sectional photograph of Sample 3 in shrinkage evaluation.
  • FIG. 10 is a cross-sectional photograph of Sample 5 in the shrinkage evaluation.
  • FIG. 11 is a cross-sectional photograph of Sample 6 in the shrinkage evaluation.
  • FIG. 12 is a plan photograph after firing of the filler button produced from Sample 10.
  • FIG. 13 is a side photograph after firing the filler button produced from Sample 10.
  • FIG. 14 is a plan photograph after firing of the filler button produced from Sample 11.
  • FIG. 15 is a side photograph after firing of the filler button produced from Sample 11.
  • FIG. 16 is a plane photograph after firing of the filler button produced from Sample 12.
  • FIG. 12 is a plan photograph after firing of the filler button produced from Sample 10.
  • FIG. 13 is a side photograph after firing the filler button produced from Sample 10.
  • FIG. 17 is a plane photograph after firing of the filler button produced from Sample 13.
  • FIG. 18 is a plane photograph after firing of the filler button produced from Sample 15.
  • FIG. 19 is a plane photograph after firing of the filler button prepared from Sample 15.
  • FIG. 20 is a plane photograph after firing of the filler button produced from Sample 16.
  • FIG. 21 is a plane photograph after firing of the filler button prepared from Sample 16.
  • a plurality of types of fillers were prepared by variously changing the amount of water to be added and the amount of peptizer. With respect to the plural kinds of fillers, the filling property and shrinkage were evaluated.
  • non-alkali glass OA-10G manufactured by Nippon Electric Glass Co., Ltd. was used as the glass powder.
  • the average particle diameter of the glass powder was 10 ⁇ m.
  • the average particle diameter of the alumina fine particles used was 20 nm.
  • Denka Alsene B97N3 (average fiber diameter: 3 ⁇ m, Al 2 O 3 : 97 mass%, SiO 2 : 3 mass%) manufactured by Denki Kagaku Kogyo Co., Ltd. was pulverized with a mixer (average particle diameter: 25 ⁇ m). ⁇ 32 ⁇ m) was used.
  • AL-42A average particle diameter: 45 ⁇ m to 55 ⁇ m
  • Sumitomo Chemical Co., Ltd. was used as the alumina particles.
  • MK Fine N average particle size: 45 ⁇ m to 55 ⁇ m manufactured by TAM was used.
  • polyacrylic acid ammonium salt (Seruna D305 manufactured by Chukyo Yushi Co., Ltd.) was used.
  • the evaluation member 1 includes first and second alumina tubes 11 and 12 bonded to a substrate 10 made of alumina using an Aron ceramic (Aron Ceramic D manufactured by Toagosei Co., Ltd.). I have.
  • the first and second alumina tubes 11 and 12 those manufactured by Nikkato Co., Ltd. made of SSA-S were used.
  • the first alumina tube 11 has an inner diameter of 18 mm and an outer diameter of 25 mm.
  • the second alumina tube 12 is arranged coaxially with the first alumina tube 11.
  • the inner diameter of the second alumina tube 12 is 35 mm, and the outer diameter is 42 mm. For this reason, the width of the clearance 13 between the first and second alumina tubes 11 and 12 is 5 mm.
  • the heights of the first and second alumina tubes 11 and 12 are 50 mm.
  • Each sample of the filler prepared above was poured into the clearance 13 of the evaluation member 1 and then dried at 60 ° C. for half a day. Thereafter, the evaluation member 1 was cut using a diamond cutter, and the state of the filler was visually evaluated.
  • Sample 1 having a water content of 33 parts by mass and a peptizer content of 3 parts by mass with respect to 100 parts by mass of the solid content had good filling properties and a low shrinkage rate.
  • Sample 4 which does not contain a peptizer and has a small water content of 33 parts by mass with respect to 100 parts by mass of solids was difficult to fill the clearance 13 with slurry. Sample 4 was not evaluated for shrinkage.
  • Sample 5 Although it did not contain a deflocculant, Sample 5 had a high water content of 69 parts by mass with respect to 100 parts by mass of solids, and it was possible to produce a slurry and good filling properties. However, the shrinkage ratio during firing was high, and large cracks occurred in the filler layer.
  • Sample 6 having a water content of 26 parts by mass and a peptizer content of 9 parts by mass with respect to 100 parts by mass of the solid content has good filling properties despite the low water content. The shrinkage rate was low.
  • the fluidity of the filler slurry can be increased by adding the peptizer, and as a result, the filling property can be improved.
  • the shrinkage rate at the time of baking can be made low by content of water with respect to 100 mass parts of solid content being 65 mass parts or less, Preferably, it is 60 mass parts or less, More preferably, it is 50 mass parts or less.
  • the more preferred amount of peptizer added is 1 to 10 parts by mass with respect to 100 parts by mass of the solid content.
  • FIGS. 12 and 13 show planar photographs after firing of the filler button produced from Sample 10.
  • FIG. FIG. 14 and FIG. 15 show a plane photograph after firing of the filler button produced from Sample 11.
  • FIG. FIG. 16 shows a planar photograph after firing of the filler button produced from Sample 12.
  • FIG. 17 shows a planar photograph after firing of the filler button produced from Sample 13.
  • FIGS. 18 and 19 show a plane photograph after firing of the filler button produced from Sample 15.
  • FIG. 20 and FIG. 21 show a plane photograph after firing of the filler button produced from Sample 16.
  • FIG. 12 and 13 show planar photographs after firing of the filler button produced from Sample 10.
  • FIG. 14 and FIG. 15 show a plane photograph after firing of the filler button produced from Sample 11.
  • FIG. FIG. 16 shows a planar photograph after firing of the filler button produced from Sample 12.
  • FIG. 17 shows a planar photograph after firing of the filler button produced from Sample 13.
  • FIG. FIGS. 18 and 19 show a plane photograph after firing of
  • the button diameter change rate (%) shown in Tables 3 to 5 below is ((diameter of the button after firing) ⁇ (diameter of the button before firing)) / (diameter of the button before firing).
  • Samples 7 to 12, 14, 15, 17, and 18 containing alumina fibers or alumina fine particles had a small flow of glass components during firing. From this result, it can be seen that the flow of the glass component during firing can be effectively suppressed by including at least one of alumina fiber and alumina fine particles. Further, among samples 7 to 16 where the firing temperature was 1300 ° C., samples 7 to 9, 12, 14, and 15 had a smaller flow of glass components during firing. From this result, it can be seen that when the alumina fiber is contained in an amount of 5% by mass or more, or the alumina fiber is not contained, it is more preferable that the alumina fine particle is contained in an amount of 10% by mass or more.
  • the coating material is applied to the outer surface of a crucible made of platinum rhodium alloy having an inner diameter of 46 mm and a height of 40 mm and containing 10% by mass of rhodium in several times using an air spray, whereby a coating layer having a thickness of 1 mm Formed.
  • the crucible formed with the coating layer was placed in a refractory crucible having an inner diameter of 56 mm so that a clearance of 5 mm was formed, and a filler slurry having the composition shown in Table 6 below was poured into the clearance, Dry at room temperature. Then, it baked at 1300 degreeC for 3 days, and cooled to room temperature. Thereby, the coating layer becomes a fired film.
  • the glass powder, alumina fine particles, alumina fibers, alumina particles, and silica particles shown in Table 6 were the same as those in Experimental Example 2.
  • non-alkali glass (OA-10G manufactured by Nippon Electric Glass Co., Ltd.) was put into the crucible, and the temperature was raised to 1300 ° C. and held at 1300 ° C. for 2 hours. Thereafter, the mixture was cooled to room temperature, and the glass in the crucible was observed using a digital scope (VHX-500F, manufactured by Keyence Corporation), and the area ratio of bubbles per unit area was calculated. The results are shown in Table 6 below.
  • Example 27 an experiment was performed under the same conditions except that alumina castable (NC-UFR-MF manufactured by Mino Ceramics Co., Ltd.) was used as the filler slurry. The results are shown in Table 6 below.

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Abstract

La présente invention concerne une charge destinée à une cuve de production de verre, qui est capable de fournir un film de revêtement durci qui présente une capacité élevée de blocage de l'hydrogène. L'invention concerne en particulier une charge destinée à une cuve de production de verre, qui est appliquée entre un corps de support et une cuve de production de verre constituée d'un métal noble. La surface de la cuve de production de verre est enduite d'une substance de revêtement contenant un composant de type verre et formant un film de revêtement durci sur la surface de la cuve de production du verre. La charge destinée à une cuve de production de verre contient un composant de type verre.
PCT/JP2011/055306 2010-03-25 2011-03-08 Charge destinée à une cuve de production de verre, couche de remplissage destinée à une cuve de production de verre, appareil de production de verre, et procédé de production de cet appareil de production de verre WO2011118375A1 (fr)

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JPWO2014073594A1 (ja) * 2012-11-12 2016-09-08 旭硝子株式会社 溶融ガラス搬送設備要素、溶融ガラス搬送設備要素の製造方法、溶融ガラス搬送設備要素を含むガラス製造装置、およびガラス物品の製造方法

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JPH0656516A (ja) * 1992-08-04 1994-03-01 Toto Ltd 熔化質素地、その製造方法、それを用いた衛生陶器、及び熔化質素地用の釉薬
JP2004523449A (ja) * 2000-11-30 2004-08-05 カール−ツァイス−スティフツング ガラス製造用被覆金属部品
JP2009509898A (ja) * 2005-09-26 2009-03-12 サン−ゴバン セントレ デ レシェルシェ エト デチュード ユーロピーン 向上した耐熱衝撃性を示す焼結耐火物
JP2009084697A (ja) * 2004-09-13 2009-04-23 Tanaka Kikinzoku Kogyo Kk 白金材料用コーティング材及び該コーティング材が被覆された白金材料並びにガラス製造装置

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JP2006077318A (ja) * 2004-09-13 2006-03-23 Tanaka Kikinzoku Kogyo Kk ガラス製造装置の表面改質施工方法

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JPH0656516A (ja) * 1992-08-04 1994-03-01 Toto Ltd 熔化質素地、その製造方法、それを用いた衛生陶器、及び熔化質素地用の釉薬
JP2004523449A (ja) * 2000-11-30 2004-08-05 カール−ツァイス−スティフツング ガラス製造用被覆金属部品
JP2009084697A (ja) * 2004-09-13 2009-04-23 Tanaka Kikinzoku Kogyo Kk 白金材料用コーティング材及び該コーティング材が被覆された白金材料並びにガラス製造装置
JP2009509898A (ja) * 2005-09-26 2009-03-12 サン−ゴバン セントレ デ レシェルシェ エト デチュード ユーロピーン 向上した耐熱衝撃性を示す焼結耐火物

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2014073594A1 (ja) * 2012-11-12 2016-09-08 旭硝子株式会社 溶融ガラス搬送設備要素、溶融ガラス搬送設備要素の製造方法、溶融ガラス搬送設備要素を含むガラス製造装置、およびガラス物品の製造方法

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