| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Compositions used in manufacturing articles having an inorganically filled organic polymer matrix | US133912 | 1998-08-13 | US6090195A | 2000-07-18 | Per Just Andersen; Simon K. Hodson |
| Compositions, methods, and systems for manufacturing articles, particularly containers and packaging materials, having a highly inorganically filled matrix. Suitable inorganically filled mixtures are prepared by mixing together an organic polymer binder, water, one or more aggregate materials, fibers, and optional admixtures in the correct proportions in order to form an article which has the desired performance criteria. The inorganically filled mixtures are molded to fashion a portion of the mixture into a form stable shape for the desired article. Once the article has obtained form stability, such as by heating to remove water by evaporation, the article is removed from the mold and allowed to harden to gain strength. The articles may have properties substantially similar to articles presently made from traditional materials like paper, paperboard, polystyrene, plastic, or metal. They have especial utility in the mass production of containers, particularly food and beverage containers. | ||||||
| 122 | Impregnated ceramic riser tube and method of manufacturing same | US853717 | 1997-05-09 | US6024259A | 2000-02-15 | Matthew T. Gardner; David A. Larsen |
| A riser tube for transfer of molten metal therethrough, including a porous ceramic substrate having a hollow cylindrical structure and ceramic impregnant material penetrating into pores of the substrate and plugging at least a portion of the surface pores thereof, to improve gas impermeability of the substrate. According to the present invention, the porous ceramic substrate is immersed in impregnation media containing ceramic particles, the impregnation media is subjected to an elevated pressure such that the media penetrates the pores of the substrate, and the impregnated substrate is then fired, whereby the ceramic particles form a ceramic impregnant material that plugs at least a portion of the surface pores of the substrate. | ||||||
| 123 | Ceramic filter and method for preparing same | US49986 | 1998-03-30 | US5935887A | 1999-08-10 | Eiichi Sudo; Nobuhiro Okuzono |
| A ceramic filter for filtering molten metals includes aggregate particles consisting of fused alumina and/or sintered alumina, and a binder material, wherein the binder is present in an amount of 10 to 22 parts, by weight, per 100 parts of the aggregate particles. The binder material consists of 15 to 25%, by weight, of Al.sub.2 O.sub.3, 35 to 52% of B.sub.2 O.sub.3, not less than 7% and less than 15% of Sio.sub.2, and the balance of MgO. The ceramic filter may be prepared by kneading 100 parts of aggregate particles consisting essentially of either or both of fused alumina and sintered alumina, 10 to 22 parts of the foregoing binder material, an appropriate amount of an organic binder and an appropriate amount of water; molding the resulting mixture; drying the molded mixture; and then firing the same at a temperature ranging from 1150 to 1300.degree. C. | ||||||
| 124 | Coating compositions for articles of graphite-alumina refractory material | US617842 | 1996-03-13 | US5840433A | 1998-11-24 | Kassum Juma |
| A refractory article of manufacture comprises an article of graphite-alumina refractory material coated with at least one mineral having a sheet structure and a refractory oxide bond. The coating protects the article against thermal shock. A typical mineral having a sheet structure may be talc, a mica, vermiculite, antigorite, kaolinite, montmorillonite, pyrophyllite, or combinations of these materials. A typical refractory oxide bond is formed from alumina gel, silica sol, alumina sol, zirconia sol, or combinations of these materials (such as a combination of alumina gel and cationic silica sol). The coating may also contain a minor proportion of fibrous material and a minor proportion of particulate refractory filler other than the mineral having a sheet structure, and a portion of the mineral content of the mineral forming the sheet structure may include graphite. The coating may be in the form of a fluid having 5-50% by weight of mineral having a street structure, 20-60% by weight of refractory oxide binder for forming the refractory oxide bond, and 20-50% by weight of carrier liquid. The carrier liquid is removed by drying (e.g. in an oven). | ||||||
| 125 | Composition for mold | US915678 | 1992-07-21 | US5646199A | 1997-07-08 | Akira Yoshida; Kazuhiko Kiuchi; Naoki Kyochika; Akio Mamba; Hitoshi Funada |
| A binder resin composition, a curing agent composition, a caking additive composition, a kit, a casting mold composition and a process for manufacturing a casting mold are disclosed, wherein a metallic compound containing a metallic element belonging to Group IB to VIII of the Periodic Table is utilized. The compositions are useful for the production of a sand mold for casting, having an excellent strength, from reclaimed sand, in a self-hardening or gas hardening mold process. The casting mold according to the present invention, which is manufactured in the presence of a metallic compound containing a metallic element belonging to Group IB to VIII of the Perioidic Table has excellent strength. | ||||||
| 126 | Inorganic foundry binder systems and their uses | US371643 | 1995-01-12 | US5582232A | 1996-12-10 | Ruth A. Bambauer; Heimo J. Langer; Steven C. Akey |
| This invention relates to inorganic no-bake foundry binder systems and their uses. The binder systems comprise as separate components: (A) mono-aluminum phosphate in an aqueous solution containing specified phosphoric acids, and (B) magnesium oxide; and certain specified zinc compounds in either the Component A, Component B or both. The components of the binder system react when they are mixed with a foundry aggregate to prepare foundry mixes which are used to prepare foundry molds and cores. The foundry molds and cores are used to cast metals. | ||||||
| 127 | Heat cured foundry binders and their use | US144237 | 1993-10-27 | US5417751A | 1995-05-23 | Helena Twardowska; Heimo J. Langer |
| This invention relates to heat-cured foundry binders comprising in admixture (1) a source of soluble silica, and (2) a source of soluble alumina, such that the source of silica, source of alumina, or both contain an alkali metal. The binder components form a saturated solution when they are mixed with an aggregate. The resulting mix is shaped and heated at an elevated temperature to form a cured foundry shape. Heat is applied by warm air with warm-box equipment, baking in an oven, microwave, and preferably from hot-box equipment. | ||||||
| 128 | Inorganic foundry binder systems and their uses | US123507 | 1993-09-17 | US5382289A | 1995-01-17 | Ruth A. Bambauer; Heimo J. Langer; Steven C. Akey |
| This invention relates to inorganic no-bake foundry binder systems and their uses. The binder systems comprise as separate components: (A) mono-aluminum phosphate in an aqueous solution containing specified phosphoric acids, and (B) magnesium oxide; and certain specified zinc compounds in either the Component A, Component B or both. The components of the binder system react when they are mixed with a foundry aggregate to prepare foundry mixes which are used to prepare foundry molds and cores. The foundry molds and cores are used to cast metals. | ||||||
| 129 | Side dam of an installation for the continuous casting of metals between rolls | US825574 | 1992-01-24 | US5247987A | 1993-09-28 | Herve Tavernier; Christophe Ganser |
| The side dam comprises a layer in contact with the molten metal constituted by a refractory material of fibrous structure and composed mainly of alumina and silica, and a second layer which is provided behind the first layer and composed of compact refractory material. The fibrous layer ensures the thermal insulation and the compact layer acts as a safety plate. The invention permits the construction of side dams which are capable of both durably ensuring the sealing of the molten metal and preventing untimely solidifications of the metal upon contact with these side dams. The invention is preferably applied to the continuous casting between rolls of hard metals having a high melting temperature, such as iron and its alloys. | ||||||
| 130 | Method for forming a lining on a metallurgical vessel, a composition and a machine for the application of said method | US635546 | 1991-01-14 | US5176873A | 1993-01-05 | Jean-Charles Daussan; Gerard Daussan; Andre Daussan |
| The method for forming a lining on the internal faces (2) of a metallurgical vessel (1) for receiving molten metal involves the following steps:a) at least one movable wall (3) is positioned at a predetermined distance from the internal face (2) of said vessel,b) a composition (4) containing at least one powdered refractory material is introduced between the face (2) of the vessel and the movable wall (3),c) said powdered material is heated so as to agglomerate at least that surface which is intended to come into contact with molten steel,d) said movable wall (3) is displaced and the aforementioned steps are repeated in order to obtain a continuous lining on the internal faces of the vessel. | ||||||
| 131 | Lime-tree preformed shapes for casting aluminum | US719067 | 1991-06-17 | US5160639A | 1992-11-03 | J. Michael McCollum |
| Preformed silica shapes such as pins and spouts useful in the casting of molten aluminum are provided by which a high strength chemical bond is developed by adding 2 to 10 wt. % of an alkali phosphate-modified alumino-silicate binder to a fused silica mix. To this silica and binder mix, sufficient water is added to obtain a castable consistency. Then, a shape is cast, dried, and shipped for service. | ||||||
| 132 | Carbonaceous coating for refractory filters of liquid metals | US351661 | 1989-05-15 | US5124040A | 1992-06-23 | Jay R. Hitchings |
| This invention discloses a process for making a refractory filter for liquid ferrous and non-ferrous metal with improved priming action. A carbonaceous resin onto the surfaces of a hard-fired ceramic or refractory cloth filter for liquid metal which protects the filter against abrasion and the absorption of water and also holds and protects particulate additives in place on the surface of the filter where they can later react with the liquid metal. When the liquid metal approaches and then touches the surface of the filter, the resinous coating chars. The resulting porous layer of mechanically strong carbon retards heat transfer from the hot liquid metal to the otherwise unheated filter, aiding the priming of the filter and also controlling the rate of dissolution of the particulate additives into the liquid metal. The preferred resin has a high char-forming tendency and a mechanically strong porous carbon coating on the filter when the filter is exposed to the hot, liquid metal. | ||||||
| 133 | Lightweight tundish refractory composition | US425633 | 1989-10-23 | US5073525A | 1991-12-17 | Jung-Jen A. Cheng; Wilfred A. Martinez; Amy P. Hale |
| Lightweight, low density magnesia-based tundish refractory compositions containing from 0.01 to 2.00 weight percent styrofoam beads and up to 5.0 weight percent paper fiber are disclosed. The compositions have excellent rapid heating, thermal insulative, vertical adhesion and deskullability properties. The compositions are useful as a lining applied over the permanent lining of a tundish, such as is used in continuous molten metal casting processes. | ||||||
| 134 | Insulative coating for refractory bodies | US210580 | 1988-06-23 | US4951852A | 1990-08-28 | Gilbert Rancoulle |
| An insulative coating for the thermal protection of ceramic refractory bodies, such as submerged pouring nozzles, and like pieces used in continuous casting of molten steel and other metals. The coating is prepared as a slurry having a preferred composition comprising (by weight %) fused silica grains (30-85%); ceramic fibers (0-10%); binders (0-7%); frits (0-40%); and water (15-30%). A refractory body, which preferably has a previously applied anti-oxidation glaze thereon, is employed at either ambient temperature or preheated to a temperature within the range of about 70.degree.-120.degree. C., and dipped into the slurry composition for a controlled time period of between 5 to 60 seconds to achieve a desired coating thickness of between about 1 to 6 mm. The coated refractory body is then dried and ready for service. Pouring nozzles coated with the insulative compositon may be used in a cold start-up continuous casting mode without the need for preheating. | ||||||
| 135 | Blast pipe for metallurgical processes having refractory coated surfaces | US193453 | 1988-04-29 | US4901983A | 1990-02-20 | Arne Larsson |
| A high-temperature resistant blast pipe is primarily intended for delivering gas, such as oxygen, and, when appropriate, solid material to metallurgical processes, and incorporates a layer of refractory material comprising a refractory mixture of solid particles and an alkali-silicate based binder.The blast pipe is characterized in particular in that the major constituent of the binder is of the type polymerized alkali silicate. | ||||||
| 136 | Ceramic-ceramic composite material and production method | US218286 | 1988-06-10 | US4888311A | 1989-12-19 | Nicolas Davidovits; Michel Davidovics; Joseph Davidovits |
| A composite ceramic-ceramic material is disclosed having a fibrous reinforcing ceramic and a ceramic matrix made of a geopolymeric compound containing:(a) a poly(sialate) geopolymer M.sub.n (--Si--O--Al--O--).sub.n and/or poly(sialate-siloxo) M.sub.n (--Si--O--Al--O--Si--O--).sub.n, M representing at least one alkaline cation, and n the degree of polymerization;(b) ultrafine silicious and/or aluminous and/or silico-aluminous constituents, of size smaller than 5 microns, preferably lower than 2 microns,the said geopolymeric compound being obtained by polycondensation at a temperature between 20.degree. C. and 120.degree. C. of an alkaline alumino-silicate reaction mixture, the composition of the principal constituents of the said geopolymeric compound expressed in terms of mole ratios of the oxides being between or equal to following values:M.sub.2 O/SiO.sub.2 --0.10 TO 0.95,SiO.sub.2 /Al.sub.2 O.sub.3 --2.50 TO 6.00,M.sub.2 O/Al.sub.2 O.sub.3 --0.25 TO 5.70,M.sub.2 O representing either Na.sub.2 O and/or K.sub.2 O, or a mixture of at least one alkaline oxide with CaO.The fibrous reinforcement consists of ceramic fibres such as SiC, Al.sub.2 O.sub.3, SiO.sub.2, glass, carbon. The addition of alkaline sulphides and alkaline sulphites enables glass fibres to be protected against chemical attack due to the alkalinity of the matrix. | ||||||
| 137 | Method of manufacturing a molten metal-resistant ceramic fiber composition | US133898 | 1987-12-16 | US4868142A | 1989-09-19 | Steven J. Waisala; Ajit Y. Sane |
| A method of manufacturing a molten metal-resisting ceramic fiber composition includes mixing ceramic fibers, a frit, ceramic additives, a low temperature binder, and water. The mixture is formed into a desired shape, preferably by being extruded through a die. The shaped mixture is baked at low temperature, and then is fired at high temperature. During firing, the low temperature binder is oxidized and the frit is melted so as to substantially coat the fibers and fuse them into a porous matrix. | ||||||
| 138 | Protective tube for thermocouple and method of producing same | US26751 | 1987-03-17 | US4796671A | 1989-01-10 | Kiyoshi Furushima; Kazunori Haratoh; Hideshige Matsuo |
| A protective tube for a thermocouple for measuring the temperature of molten metal, comprising two layers, an inner layer being made of a silicon nitride or sialon ceramic having a bending strength of 50 kg/mm.sup.2 or more, a density of 90% or more based on a theoretical density and a thermal shock temperature .DELTA.T of 400.degree. C. or more, and an outer layer being formed on the silicon nitride or sialon ceramic and containing BN and SiO.sub.2. The silicon nitride of sialon ceramic comprises 70 weight % or more of Si.sub.3 N.sub.4 having 65 weight % or more of an .alpha.-phase content, 20 weight % or less of one or more oxides of elements of Group IIIa of the Periodic Table, 20 weight % or less of Al.sub.2 O.sub.3, and optionally 15 weight % or less of AlN or AlN solid solution, and the outer layer is composed mainly of BN-SiO.sub.2 -Al.sub.2 O.sub.3 -Y.sub.2 O.sub.3. This protective tube is produced by coating ceramic powder comprising BN and SiO.sub.2 before sintering. This protective tube can enjoy an extremely long life. | ||||||
| 139 | Refractory gun mix | US661333 | 1984-10-16 | US4623393A | 1986-11-18 | Masumi Toda; Masashi Mori; Shingo Nonaka; Hiroshi Kyoden; Kenji Ichikawa; Yoshihisa Hamazaki |
| A low cement refractory gun mix is disclosed. The gun mix comprises a coarse refractory portion having a particle diameter of at least 74 microns and a fine powder portion having a particle diameter of at most 74 microns. The gun mix is prepared by forming the fine powder portion into a slurry and deflocculating it prior to mixing it with the coarse refractory portion rather than deflocculating it when it is introduced into a spray gun. The gun mix has an extremely low cement and water content. Accordingly, a sprayed deposit of high packing density can be obtained which is equal in quality with deposits produced by vibration molding or casting. The gun mix is appropriate for use in forming the entire work lining of containers for molten metal. | ||||||
| 140 | Process for the preparation of granular refractory material | US528066 | 1983-08-31 | US4582262A | 1986-04-15 | Helmut Krahe |
| A process for the preparation of a granular refractory material for producing chemically bonded and/or tar-bonded linings of improved durability, especially in the form of bricks, for metallurgical vessels is disclosed. Magnesite or schamotte particles are impregnated with hot tar, pitch, bitumen, asphalt or mixtures thereof and are then heated under coking conditions. In impregnating the magnesite particles, finely divided calcium hydroxide, in an amount sufficient to improve the CaO/SiO.sub.2 ratio of the magnesite, is uniformly dispersed in the hot tar, pitch, bitumen, asphalt or mixtures thereof serving as the impregnating material. | ||||||
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