Abstract: The invention provides a crystallizable glass, a crystallized glass, and manufacturing methods thereof. The crystallizable glass can be crystallized in a short period of time, and can maintain its glass shape and its surface condition during a crystallization process. The crystallized glass has good mechanical strength, an adequate thermal expansion coefficient that allows the crystallized glass to be used as a construction material, less content of alkali-metal oxides, and good chemical durability. The MgO—Al2O3—SiO2-based crystallizable glass and crystallized glass contain, by mass percent, 55.0-65.0% SiO2, 8.0-14.0% Al2O3, 10.0-20.0% MgO, 1.5-6.0% CaO, 1.0-2.2% Li2O, 0.7-3.0% Na2O, 2.5-4.0% K2O, and 1.5-3.0% F.

Abstract: A consecutive molding method for crystallized glass comprises: a process to obtain molten glass by melting glass raw materials; a process to obtain a band-shaped plate glass by roll forming the molten glass; a crystallization process to obtain a band-shaped crystallized glass plate by conducting thermal treatment on the band-shaped plate glass to crystallize it; and a process to cut the band-shaped crystallized glass plate, wherein the crystallization process includes: a process to form crystal nuclei in the band-shaped plate glass by disposing it in the atmosphere of a crystal nucleus-formation temperature and retaining it at the temperature; a process to raise the temperature of the band-shaped plate glass with crystal nuclei to a crystal-growth temperature; a process to retain the band-shaped plate glass with crystal nuclei at the crystal-growth temperature to produce a band-shaped crystallized glass plate; and a process to slowly cool down the band-shaped crystallized glass plate.

Abstract: A consecutive molding method for crystallized glass comprises: a melting process to obtain molten glass by melting glass raw materials; a molding process to obtain a band-shaped plate glass by roll forming the molten glass to become band-shaped; a crystallization process to obtain a band-shaped crystallized glass plate by conducting thermal treatment on the band-shaped plate glass to crystallize it; and a cutting process to cut the band-shaped crystallized glass plate, wherein the crystallization process includes: a temperature-raising process to produce the band-shaped crystallized glass plate by disposing the band-shaped plate glass obtained in the molding process, in the atmosphere of a crystal nucleus-formation temperature and raising the temperature to a crystal-growth temperature or above to grow crystals as well as form crystal nuclei; and a slow-cooling process to slowly cool down the band-shaped crystallized glass plate.

Abstract: A crystallized glass article having patterns outwardly expressing a spotted pattern through precipitating one or more spherical crystallized glass inside a crystallized glass layer. The crystallized glass article having patterns includes a crystallized glass layer A containing at least one main crystal selected from ?-wollastonite and diopside crystals, and having a thickness more than 6 mm and less than or equal to 18 mm, and one or more spherical crystallized glass precipitating inside the crystallized glass layer A; and a glass layer B provided in a manner of fusion-bonding on at least a part of at least one surface selected from one horizontal surface and lateral surfaces of the crystallized glass layer A.

Abstract: One objective of the present invention was to provide a method of continuously forming crystallized glass, so as to reduce the thermal treatment time necessary for crystallizing a belt-shaped glass plate; and to provide an apparatus of continuously forming crystallized glass, so as to shorten the thermal treatment zone necessary for crystallizing a belt-shaped glass plate. A method of continuously forming crystallized glass according to the present invention includes: a melting step of melting a raw glass material to obtain molten glass; a shaping step of rolling the molten glass to form a belt-shaped glass plate; a crystallizing step of retaining the belt-shaped glass plate at a temperature necessary for nuclei formation and crystal growth, thereby forming nuclei and crystallizing the belt-shaped glass plate to a belt-shaped crystallized glass plate, and then slowly cooling the belt-shaped crystallized glass plate; and a cutting step of cutting the belt-shaped crystallized glass plate.

Abstract: The invention provides a crystallizable glass, a crystallized glass, and manufacturing methods thereof. The crystallizable glass can be crystallized in a short period of time, and can maintain its glass shape and its surface condition during a crystallization process. The crystallized glass has good mechanical strength, an adequate thermal expansion coefficient that allows the crystallized glass to be used as a construction material, less content of alkali-metal oxides, and good chemical durability. The MgO—Al2O3—SiO2-based crystallizable glass and crystallized glass contain, by mass percent, 55.0-65.0% SiO2, 8.0-14.0% Al2O3, 10.0-20.0% MgO, 1.5-6.0% CaO, 1.0-2.2% Li2O, 0.7-3.0% Na2O, 2.5-4.0% K2O, and 1.5-3.0% F.

Abstract: A crystalline glass with a characteristic of precipitating crystals from the surface of the crystalline glass to the interior thereof when it is being heated at a temperature higher than the softening point is used in the invention. A plurality of small crystalline glass masses 12 are accumulated and leveled in a fireproof mold coated with a mold release agent, and two crystalline glass plates 14A and 14B cut in an S shape are placed on the accumulated surface of the small crystalline glass masses 12 with the cut faces tightly bonded. A heat treatment is then performed to obtain a crystallized glass article having patterns. The crystalline glass plate can be cut into any shape to tightly bond the cut faces, and therefore the obtained crystallized glass articles have different patterns like natural-marble-like patterns, human figure patterns, animal patterns, etc. The invention also discloses a method of producing crystallized articles having patterns.

Abstract: A crystalline glass with a characteristic of precipitating crystals from the surface of the crystalline glass to the interior thereof when it is being heated at a temperature higher than the softening point is used in the invention. A plurality of small crystalline glass masses 12 are accumulated and leveled in a fireproof mold coated with a mold release agent, and two crystalline glass plates 14A and 14B cut in an S shape are placed on the accumulated surface of the small crystalline glass masses 12 with the cut faces tightly bonded. A heat treatment is then performed to obtain a crystallized glass article having patterns. The crystalline glass plate can be cut into any shape to tightly bond the cut faces, and therefore the obtained crystallized glass articles have different patterns like natural-marble-like patterns, human figure patterns, animal patterns, etc. The invention also discloses a method of producing crystallized articles having patterns.

Abstract: A crystalline glass with a characteristic of precipitating crystals from the surface of the crystalline glass to the interior thereof when it is being heated at a temperature higher than the softening point is used in the invention. A plurality of small crystalline glass masses 12 are accumulated and leveled in a fireproof mold coated with a mold release agent, and two crystalline glass plates 14A and 14B cut in an S shape are placed on the accumulated surface of the small crystalline glass masses 12 with the cut faces tightly bonded. A heat treatment is then performed to obtain a crystallized glass article having patterns. The crystalline glass plate can be cut into any shape to tightly bond the cut faces, and therefore the obtained crystallized glass articles have different patterns like natural-marble-like patterns, human figure patterns, animal patterns, etc. The invention also discloses a method of producing crystallized articles having patterns.

Abstract: A continuous method for manufacturing crystallized glass plates includes the steps of melting a raw crystallizable glass material to form molten glass, adjusting the molten glass to have a predetermined viscosity, rolling the molten glass to form a belt of crystallizable glass, and passing the belt of crystallizable glass through a crystallization tunnel so as to form a belt of crystallized glass.

Abstract: A crystallizable glass of Li2O—Al2O3—SiO2 system is provided, which can be crystallized by a crystallization process at a lower temperature to produce crystallized glass of Li2O-Al2O3—SiO2 system with excellent thermal characteristics. The crystallizable glass of Li2O—Al2O3—SiO2 system which consists essentially of, by weight percentages, SiO2—58.0˜66.0 wt %; Al2O3—18.0˜26.0 wt %; Li2O—3.5˜5.5 wt %; TiO2—0.5-4.0 wt %; ZrO2—0.5˜3.0 wt % P2O5—0.5˜3.0 wt %; F—0.1˜1.0 wt %; B2O3—0˜2.5 wt %; Na2O—0˜2.0 wt %; K2O—0˜2.0 wt %; MgO—0˜1.0 wt %; ZnO—0.5˜3.0 wt %; BaO—0˜2.5 wt %; SrO—0.3˜3.0 wt % As2O3—0.4˜1.5 wt %; and Sb2O3—0˜1.5 wt %.

Abstract: A crystalline glass with a characteristic of precipitating crystals from the surface of the crystalline glass to the interior thereof when it is being heated at a temperature higher than the softening point is used in the invention. A plurality of small crystalline glass masses 12 are accumulated and leveled in a fireproof mold coated with a mold release agent, and two crystalline glass plates 14A and 14B cut in an S shape are placed on the accumulated surface of the small crystalline glass masses 12 with the cut faces tightly bonded. A heat treatment is then performed to obtain a crystallized glass article having patterns. The crystalline glass plate can be cut into any shape to tightly bond the cut faces, and therefore the obtained crystallized glass articles have different patterns like natural-marble-like patterns, human figure patterns, animal patterns, etc. The invention also discloses a method of producing crystallized articles having patterns.

Abstract: A crystallizable glass of Li2O—Al2O3—SiO2 system is provided, which can be crystallized by a crystallization process at a lower temperature to produce crystallized glass of Li2O—Al2O3—SiO2 system with excellent thermal characteristics. The crystallizable glass and crystallized glass of Li2O—Al2O3—SiO2 system consist essentially of, by weight percentages, SiO2 - - - 58.0˜66.0 wt % Al2O3 - - - 18.0˜26.0 wt % ; Li2O - - - 3.5˜5.5 wt %; TiO2 - - - 0.5˜4.0 wt % ; ZrO2 - - - 0.5˜3.0 wt %; P2O5 - - - 0.5˜3.0 wt %; F - - - 0.1˜1.0 wt %; B2O3 - - - 0˜2.5 wt %; Na2O - - - 0˜2.0 wt %; K2O - - - 0˜2.0 wt %; MgO - - - 0˜1.0 wt %; ZnO - - - 0.5˜3.0 wt % ; BaO - - - 0˜2.5 wt % ; SrO - - - 0.3˜3.0 wt % As2O3 - - - 0.4˜1.5 wt % ; and Sb2O3- - - 0˜1.5 wt %. A method for producing a crystallized glass of Li2O—Al2O3—SiO2 system is also provided.

Abstract: A continuous method for manufacturing crystallized glass plates includes the steps of melting a raw crystallizable glass material to form molten glass, adjusting the molten glass to have a predetermined viscosity, rolling the molten glass to form a belt of crystallizable glass, and passing the belt of crystallizable glass through a crystallization tunnel so as to form a belt of crystallized glass.

Abstract: An Li2O—Al2O3—SiO2 crystallizable glass comprises a base ingredient, and P2O5 or F. The base ingredient comprises 58.0-65.0 wt % SiO2, 19.0-26.0 wt % Al2O3, 3.7-5.5 wt % Li2O, 0.5-4.0 wt % TiO2, 1.0-3.0 wt % ZrO2, 0.2-3.0 wt % MgO, 0-3.0 wt % ZnO, 0-4.0 wt % BaO, 0.4-1.5 wt % As2O3, 0-1.5 wt % Sb2O3, and 0-2.0 wt % Na2O+K2O. The total content of SiO2 and Al2O3 is 80.0-87.0 wt %.

Abstract: A process for producing stained crystallized glass and its articles is provided where crystallized glass is obtained with patterns and colors like that of granites, marble, and other natural stones. The process includes the heat-treatment of a prepared batch of crystallizable glass granules, colored powder and water, at a temperature higher than the softening point of the glass granules resulting in fusion bonding of the glass granules. The colored powder is compounded by an inorganic pigment, a suspension stabilizing agent, an agglomerate, a deflocculant agent, and a crystallizable glass powder. The surface pattern is formed by the grain boundary region of the crystallizable glass granules, and part of the inorganic pigment in the colored powder moving with the crystallizable glass powder.

Abstract: A process for producing stained crystallized glass and its articles which is characterized in meeting production of various crystallized glass articles in small quantity. By this process, crystallized glass is obtained with patterns and colors alike to that of granites, marble, and other natural stones. The process of heat-treatment to a prepared batch compounded of crystallizable glass granules, color powder and water at a temperature higher than the softening point thereof results in fusion bonding of the glass granules. The color powder is compounded by inorganic pigment, suspension stabilizing agent, agglomerant, deflocculant agent, and crystallizable glass powder. The surface pattern is formed by grain boundary part of crystallizable glass granules, and part of the inorganic pigment in the color powder moving with the crystallizable glass powder.