| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Heat-resistant material for low-melting metal casting machine | US11727646 | 2007-03-27 | US20070221013A1 | 2007-09-27 | Akifumi Sakamoto |
| The present invention provides a heat-resistant material for a low-melting metal casting machine, which comprises calcium silicate and a fluoride. | ||||||
| 182 | Sintered shaped body, whose surface comprises a porous layer and a method for the production thereof | US10240177 | 2001-03-14 | US07074479B2 | 2006-07-11 | Dirk Rogowski; Hans-Georg Pfaff; Alwin Nagel |
| Porous coatings on high-performance ceramics attempt to combine the mechanical and thermal characteristics, which fulfil stringent demands, of the substrate material with the advantageous properties of coating materials. The subsequent application of layers of this type to the pre-sintered substrate produces unsatisfactory results in several areas of use with regard to possible layer thickness, porosity and adhesion. According to the invention, a shaped body consisting of a sintered, inorganic material, whose surface comprises a porous layer is produced in such a way that the base body is first formed as a green body. A layer in the form of a suspension, also containing an inorganic material, is then applied to the surface or to one section of the surface of the base body. A predetermined fraction of a pore-forming substance is mixed with at least the material of said layer and the green body with its applied layer is subjected to the thermal treatments required for producing a monolithic sintered body. | ||||||
| 183 | Investment casting binders for making molds having high green strength and low fired strength | US09940816 | 2001-08-27 | US06770699B2 | 2004-08-03 | Ronald S. Doles; Gretchen L. Desch |
| Investment casting binders containing a mixture of colloidal silicas having average particle size diameters of 4, 8 and 13 nanometers yield molds having high green strength and low fired strength. | ||||||
| 184 | Refractory articles | US10362751 | 2003-02-26 | US20040128857A1 | 2004-07-08 | David A Bell; David L Jones; Kassim Juma; Helmut Jaunich; Andreas Ansorge; Martin Schmidt |
| A filter for molten metal is an open-pored porous material comprising particles of refractory material embedded in and bonded together by a carbon matrix bonding material. The filter can be made by forming a porous article from refractory particles, e.g. refractory oxide, carbide or graphite, and a carbon-rich binder, e.g. tar, pitch or an organic (preferably aromatic) polymer that degrades to form carbon on pyrolysis, and then firing the porous article to generate the carbon matrix in which the refractory particles are embedded. The porous article is preferably made by coating a reticulated polyurethane foam with binder and refractory particles, and firing at preferably no higher than 800null C. | ||||||
| 185 | Process and apparatus for curing resin-bonded refractory brick lined ladles | US10147825 | 2002-05-20 | US06746644B2 | 2004-06-08 | Paul W. Loukas; Manfred Sallaberger |
| An improved process of curing resin-bonded refractory brick lining of a ladle within a housing by heating the brick in air at an effective temperature to produce resin vapors and transferring the vapors from the ladle comprising transferring the vapors at a temperature above the condensation temperature of the transferred vapors to an auxiliary burner to effect combustion of the transferred vapors to produce non-toxic gases. The process provides an efficacious and environmentally sound treatment of resin-bonded refractory bricks. | ||||||
| 186 | Insulation material and method for coating nozzles, pouring spouts, pouring-stream protective tubes and similar tools for casting or converting melts | US10297040 | 2003-08-18 | US20040035327A1 | 2004-02-26 | Gunther Schrick |
| The invention relates to insulating material and to a method for coating nozzles, pouring spouts, pouring-stream protective tubes and similar tools for casting or converting melts, especially molten baths used in the steel industry. The aim of the invention is to produce a low-cost insulation which does not damage people's health, is not harmful to the environment, is thermally stable at operating temperatures especially at temperatures of over 1200null C.nulland which exhibits low thermal conductivity. The insulation material is a mixture of at least one raw material and at least one binding agent. Said mixture forms a microporous structure once it has hardened. The surface of a workpiece for forming the insulation is at least partially coated with the insulating material. | ||||||
| 187 | Aluminium-wettable protective coatings for carbon components used in metallurgical processes | US10161034 | 2002-06-03 | US20030221955A1 | 2003-12-04 | Vittorio de Nora; Jean-Jacques Duruz |
| An aluminium-wettable protective coating on a substrate, for use at elevated temperature in an oxidising and/or corrosive gaseous and/or molten environment is disclosed. The coating (20A, 20B, 20C, 20D) is applied to protect the substrate (5, 15, 16) from liquid and/or gaseous attack. The coating comprises particles of at least one metal oxide and/or at least one partly oxidised metal in a dried and/or cured colloidal carrier and/or organic binder. The metal oxide and/or partly oxide metal is reactable with molten aluminium when exposed thereto to form an alumina matrix containing metal of said particles and aluminium. The coated substrate (5, 15, 16) may be used in an aluminium electrowinning cell an arc furnace for the recycling of steel or an apparatus for the purification of a molten metal such as aluminium, magnesium, iron or steel. | ||||||
| 188 | Molding sand appropriate for the fabrication of cores and molds | US09125904 | 1999-07-01 | US06598654B2 | 2003-07-29 | Jaime Prat Urreiztieta |
| The molding sand comprises hollow microspheres of aluminum silicate, preferably with an aluminum content between 15 and 45% by weight, a wall thickness between 3 and 10% of the particle diameter and a particle size between 10 and 350 &mgr;m. These sands are useful to manufacture low density cores with good “veining” and penetration characteristics, moreover maintaining the mechanical properties of the core obtained. These cores are useful in the manufacture of iron casting. | ||||||
| 189 | Sand casting foundry composition and method using shale as an anti-veining agent | US10290750 | 2002-11-08 | US20030101907A1 | 2003-06-05 | Richard K. Brown |
| A sand casting foundry composition reduces thermal defects that cause veining in metal parts cast from sand casting foundry shapes formed from the foundry composition. A plurality of foundry sand grains are mixed substantially uniformly with a plurality of shale particles, and a curable binder coats the sand grains and the shale particles to establish core and mold foundry shapes used to cast the metal part. Anti-veining capability occurs because the shale particles include mineral components which have an inherent characteristic of crystal structural collapse upon exposure to metallurgical temperatures, and the crystal structural collapse yields space which is consumed by thermal expansion of the sand grains in the foundry composition. This compensatory effect avoids the creation of mechanical forces and stresses within the foundry shape that cause cracks and fissures in the foundry shape that lead to veining. | ||||||
| 190 | Bonded aggregate composition and binders for the same | US09563764 | 2000-05-01 | US06447596B1 | 2002-09-10 | Jean Tremblay; David Mintz; Neil Mintz |
| Bonded aggregate compositions such as concrete, concrete repair products, high temperature refractories, high temperature insulation and fire resistant insulation are made from an aqueous solution of phosphoric acid and a separate, storable dry mixture of suitable aggregate, monocalcium phosphate, and calcium in the form of calcium aluminate cement or calcium oxide. The proportion of wet to dry constituents is variable so as to select the working time and strength of the aggregate composition, typically on the order of ten to fifteen minutes. The mixture of the preferred dry constituents, and the binder to be mixed with the aggregate to yield the preferred dry mixture, are also disclosed. The binder system is particularly advantageous in that the same set of binder constituents can readily be employed with a variety of aggregates, reducing the cost of providing a variety of aggregate compositions due to the ready availability of the raw materials and obviating the need to stock different binders for different aggregate compositions. Cost is additionally reduced through the use of less purified, and therefore less expensive constituents. | ||||||
| 191 | Die for superplastic forming of titanium-based alloy | US819369 | 1997-03-17 | US5896784A | 1999-04-27 | Akira Kamiya; Katsuyoshi Naganuma; Makoto Kato |
| The present invention provides a die for superplastic forming of titanium-based alloy with high-workability, which is inexpensive and easy to handle, and has detailed shape-reproducibility and no reactivity with titanium-based alloy to be processed, and has excellent accordance with it in a thermal expansion coefficient. This invention relates to a die for superplastic forming of titanium-based alloy characterized by comprising quartz, cristobalite and calcium silicate. The above die for superplastic forming of titanium-based alloy is produced by kneading a mixed powder of quartz and cristobalite, together with a binder containing a plaster additive of less than 30 weight % based on the total amount with water, forming the mixture, drying the formed product and sintering it in the atmosphere to convert the plaster additive into calcium silicate. | ||||||
| 192 | Methods of molding articles having an inorganically filled organic polymer matrix | US218971 | 1994-03-25 | US5830305A | 1998-11-03 | 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, 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. | ||||||
| 193 | Heat curable alumino-silicate binder systems and their use | US762670 | 1996-12-11 | US5743953A | 1998-04-28 | Helena Twardowska; John J. Cooper; Yuliy Yunovich |
| This invention relates to heat curable alumino-silicate binder systems comprising as three separate parts (1) a soluble source of silica, (2) a caustic solution of an alkali silicate, and (3) aluminum silicate, and an alcohol which may be incorporated into (1), (2), or both. The binder systems are mixed with an aggregate to form a mix. The resulting mix is shaped and heated at an elevated temperature to form a cured shape, particularly foundry cores and molds. Heat is applied by warm air, baking in an oven, microwave, or preferably by hot-box equipment. | ||||||
| 194 | Molded articles having an inorganically filled organic polymer matrix | US483378 | 1995-06-07 | US5705239A | 1998-01-06 | 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, 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. | ||||||
| 195 | Metal-impregnated refractory product | US134473 | 1993-10-08 | US5523150A | 1996-06-04 | Noriji Numata; Makoto Iiyama; Noboru Murakami; Motonobu Kobayashi; Haruyoshi Tanabe |
| A metal-impregnated refractory product of this invention has high slag attack, gas attack, and spalling resistances and is used in various types of molten metal treatment vessels. A material of refractory particles mainly consisting of MgO or Al.sub.2 O.sub.3 is formed and heated by a suitable method to obtain a porous material body containing at least 4 vol % of open pores. A metal or an alloy mainly consisting of at least one type of a metal selected from the group consisting of iron, chromium, and nickel is impregnated in the porous material body at a ratio of 25 vol % or more of the open pores. The metal is filled in pores present in a region from the surface to at least a predetermined depth. The metal-impregnated refractory product can withstand various high-temperature damages and can be stably used over a long time period. | ||||||
| 196 | Coatings for receptacles | US229376 | 1994-04-18 | US5437890A | 1995-08-01 | Mark H. Gramke |
| The present invention relates to a coating for metallurgical receptacles comprising a slurry of slag fines, lime and water. The coating has proven effective at releasing the skull remaining in metallurgical receptacles after the molten metal has been tapped off and the slag layer has been poured off. The invention also relates to a process for coating metallurgical receptacles with the coating composition of the present invention. | ||||||
| 197 | Dry refractory composition | US878142 | 1992-05-04 | US5284808A | 1994-02-08 | John Damiano; Julie A. Dody (nee Hebron); Wilfred A. Martinez |
| A refractory composition, particularly for application as a dry vibratable refractory for forming the wearable, disposable monolithic lining coating the permanent lining of a tundish or ladle used in molten metal casting processes is disclosed. The composition contains a refractory aggregate, a first bonding agent actuatable at temperatures in the range of from about 300.degree. F. to about 1000.degree. F. to cause the formation of interparticle bonds between aggregate particles, at least one second bonding agent actuatable at temperatures in the range of from about 1000.degree. F. to about 2500.degree. F. to cause further formation of interparticle bonds between aggregate particles, and, optionally, clay. The use of both first and second bonding agents enables installation of the refractory in hot practice, in which vessel preheat temperatures of up to about 2500.degree. F. are utilized. | ||||||
| 198 | Process for producing a porous ceramic and porous ceramic composite structure utilizing combustion synthesis | US071948 | 1993-06-03 | US5279737A | 1994-01-18 | Jainagesh A. Sekhar; Sarit B. Bhaduri |
| A process for producing a porous ceramic, ceramic composite or metal-ceramic composite structure by combustion synthesis wherein a foamed polymer shape is impregnated with a slurry of ceramic precursors and ignited to initiate combustion synthesis, thereby obtaining a ceramic, ceramic composite or metal-ceramic composite article having interconnected porosity. Ceramic composite filters having improved strength, toughness and thermal shock resistance are provided, with the ceramic composite being an oxide and a nonoxide. | ||||||
| 199 | Method of producing refractory materials and their applications in the casting of corrosive alloys | US802300 | 1991-12-04 | US5206191A | 1993-04-27 | Jean A. Alary |
| A method of producing a refractory material of the non-shaped type is disclosed. Refractory aggregates and a binder are mixed ensuring cohesion by chemical bonding. The mixture is shaped and fired. A charge comprising refractory particles of a polymodal granulometric distribution is mixed with a liquid binder consisting of a mixture in an aqueous medium of polysilicate-based mineral polymers and a mineral polymer comprising sialate groups. The paste obtained is shaped and after hardening of the mixture at a temperature between ambient temperature and 200.degree. C., the hardened mixture is brought to a temperature between 200.degree. and 1300.degree. in order to obtain a refractory material having high mechanical properties, high resistance to thermal shock and resistance to chemical corrosion. | ||||||
| 200 | Ceramic filter for molten metal | US815430 | 1991-12-31 | US5152893A | 1992-10-06 | Yukihisa Shiraishi; Tadahiro Yoshida |
| A ceramic filter used for filtering molten metal, particularly molten aluminum, made by sintering the composition comprising 90 parts by weight of electrofused alumina for an aggregate and 5 to 15 parts by weight of an inorganic binder. The inorganic binder comprises 5 to 15 wt % of B.sub.2 O.sub.3, 15 to 50 wt % of MgO, 3 to 10 wt % of SiO.sub.2 and the remainder Al.sub.2 O.sub.3. | ||||||
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