101 |
COMPOSITIONS COMPRISING SILICATES AND METHODS OF USE THEREOF IN SAND CASTING |
US16327943 |
2017-08-24 |
US20190184449A1 |
2019-06-20 |
Victor S. LAFAY |
Compositions useful for foundry processes such as green sand casting are discussed. The compositions may comprise an aggregate, at least one inorganic binding agent, and at least one high aspect ratio silicate. For example, the composition may comprise sand, one or more clay materials serving as a binding agent, and a high aspect ratio silicate chosen from mica, talc, or a combination thereof. The composition may be formed into a green sand mold for use in casting molded articles. Incorporation of the high aspect ratio silicate may help to improve the quality of the casted article. |
102 |
Two-component system, in particular for forming an adhesive |
US15106030 |
2014-12-19 |
US10106462B2 |
2018-10-23 |
Christian Fourberg; Ditmar Baier |
Described is a two-component system, particularly for forming an adhesive, which is suitable, for example, for applications in the foundry industry and in the construction industry. |
103 |
Method for producing granulates |
US14901605 |
2014-04-25 |
US09914665B2 |
2018-03-13 |
Wolfgang Ruckert |
A method for producing granulates, particularly for use as thermal insulation for a metal melt may include mixing a powdery mineral with a binder, and the mixture may be granulated in order to produce a semi-finished product. The granulate mixture or the semi-finished product may be heated rapidly to a temperature above the melting temperature or decomposition temperature of the binder, which may be in the form of a salt, so that the binder decomposes, whereby gas is released and the volume increases. The apparent density of the granulate mixture may decrease, and therefore the apparent density of the finished product may decrease with respect to the semi-finished product. |
104 |
ZIRCONIA BASED COATING FOR REFRACTORY ELEMENTS AND REFRACTORY ELEMENT COMPRISING OF SUCH COATING |
US14776593 |
2014-03-12 |
US20160039719A1 |
2016-02-11 |
James Ovenstone |
A coating composition for applications at temperatures higher than 1200 degrees C. comprises (a) between 80.0 and 99.9 wt. % of unstabilized zirconia; and (b) between 0.1 and 5.0 wt. % of a liquid phase former which is solid at ambient temperature and either melts or reacts, or decomposes to form a liquid phase above a temperature not lower than 1000 degrees C.; wherein the wt. % are expressed in terms of total solid weight of the coating composition at room temperature. A refractory element that may be made of a carbon bonded refractory comprises a coated surface comprising a first coating of the coating composition as defined above. |
105 |
CRUCIBLE MATERIALS |
US14237089 |
2011-08-05 |
US20140202597A1 |
2014-07-24 |
Theodore A. Waniuk |
One embodiment provides an article, comprising: an inner container having a cavity, the inner container comprising a ceramic; and an outer container, the outer container comprising a susceptor; wherein at least a portion of an outer surface of the inner container is in contact with an inner surface of the outer container, and wherein the inner container is removable from the mold. Methods of melting using the present article are also provided. |
106 |
Electrolytic cell for obtaining aluminium |
US12299338 |
2007-04-25 |
US08440059B2 |
2013-05-14 |
Jean-Michel Dreyfus |
The invention relates to an electrolytic cell for obtaining aluminum, including a pot shell, at least one cathode block arranged at least partially in the pot shell, at least one anode suspended above the cell and dipping into the upper portion of the electrolytic cell, and an insulation at least partially covering the internal surface of the pot shell and located between the cathode block and the pot shell, the pot shell and the elements that it contains delimiting a crucible intended to receive an electrolytic bath in contact with the cathode block, characterized in that the insulation is at least partially made of carbon-based blocks having a heat conductivity lower than 1 W/m/K. |
107 |
Refractory articles |
US11489443 |
2006-07-20 |
US08158053B2 |
2012-04-17 |
David A. Bell; David L. Jones; Kassim Juma; Helmut Jaunich; Andreas Ansorge; Martin Schmidt |
A process for making a filter suitable for filtering molten metal comprising (i) forming a slurry comprising (a) particles of a refractory material, (b) a binder and (c) a liquid carrier, (ii) coating a disposable former with a slurry, (iii) drying the coated former, (iv) optionally applying one or more additional coats of a refractory material and/or a binder, optionally with liquid carrier, and drying the one or more additional coats, and (v) firing the coated former to produce the filter, wherein the binder is a carbon rich source selected from one or more of the following classes of materials: pitches, tars and organic polymers that degrade to form carbon on pyrolysis. |
108 |
COATING OF A FUNCTIONAL COMPONENT THAT IS SUBJECT TO THERMAL LOADS AND EROSION, MOLD-RELEASE AGENT AND METHOD FOR PRODUCING SAID COATING |
US12089424 |
2006-09-07 |
US20100304129A1 |
2010-12-02 |
Manfred Laudenklos |
The invention relates to a metallic functional component, which is subject to thermal or thermal and erosive stress and to which on at least one surface a coating is applied, whereby the coating consists of a binder phase, which consists at least largely of a phosphate, and a material embedded in the binder phase. In addition, the invention relates to a separating agent for preparing a layer of this type, and to a method for applying the coating to a functional component. |
109 |
VESSEL FOR MOLTEN METAL |
US12863825 |
2009-03-10 |
US20100289195A1 |
2010-11-18 |
Hideaki Ohashi; Nobuyuki Oka; Hirokazu Asada |
The invention provides a vessel for molten metal comprising a vessel body formed of an alumina-silica-based material, and a protective layer formed of a silicon nitride-alumina-based material provided on the inner surface of the vessel body, wherein the material for the vessel body is adjusted to have an alumina content x of 72 to 95 parts by weight per 100 total parts by weight of alumina and silica, and the material for the protective layer is adjusted to have a silicon nitride content y per 100 total parts by weight of silicon nitride and alumina in such a manner that y applies to the following formulae (1) and (2): y<−1.1x+128 (1) y>−0.5x+62.5 (2). The present invention provides a vessel for molten metal having excellent durability and corrosion resistance against hot molten metal. |
110 |
Heat-resistant material for low-melting metal casting machine |
US11727646 |
2007-03-27 |
US07700061B2 |
2010-04-20 |
Akifumi Sakamoto |
The present invention provides a heat-resistant material for a low-melting metal casting machine, which comprises calcium silicate and a fluoride. |
111 |
ELECTROLYTIC CELL FOR OBTAINING ALUMINIUM |
US12299338 |
2007-04-25 |
US20090218216A1 |
2009-09-03 |
Jean-Michel Dreyfus |
The invention relates to an electrolytic cell for obtaining aluminium, including a pot shell, at least one cathode block arranged at least partially in the pot shell, at least one anode suspended above the cell and dipping into the upper portion of the electrolytic cell, and an insulation at least partially covering the internal surface of the pot shell and located between the cathode block and the pot shell, the pot shell and the elements that it contains delimiting a crucible intended to receive an electrolytic bath in contact with the cathode block, characterised in that the insulation is at least partially made of carbon-based blocks having a heat conductivity lower than 1 W/m/K. |
112 |
Refractory articles |
US10362751 |
2001-08-28 |
US07138084B2 |
2006-11-21 |
David A. Bell; David L. Jones; Kassim Juma; Helmut Jaunich |
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 800° C. |
113 |
Fiber reinforced filter for molten metal filtration and method for producing such filters |
US10516443 |
2003-05-27 |
US20050229746A1 |
2005-10-20 |
Kassim Juma |
The present invention relates to a fiber reinforced ceramic filter for molten metal filtration that comprises a bonded network of graphitized carbon and a method for producing such filters. |
114 |
Ceramic structures having hydrophobic coatings |
US11015714 |
2004-12-16 |
US20050159308A1 |
2005-07-21 |
Max Bliss; Dana Bookbinder; Robert Paisley; Christopher Warren |
A catalyst support structure for use as either a NOx catalyst support or as a DPF including (i) a multicellular ceramic body, preferably a monolithic ceramic honeycomb composed e.g., of cordierite or aluminum titanate, and (ii) a hydrophobic coating on at least the exterior surface thereof which results in a ceramic honeycomb exhibiting reduced or low absorption when exposed to both liquid catalytic coating media and aqueous media utilized in the process of applying the catalytic coating. In a preferred embodiment the hydrophobic coating is formed within or on an applied external skin layer provided on the multicellular ceramic body. |
115 |
Filter for molten metal filtration and method for producing such filters |
US10485746 |
2002-04-11 |
US20050035055A1 |
2005-02-17 |
Hassan Bali |
The present invention relates to a ceramic filter for molten metal filtration that comprises a bonded network of graphitized carbon and a method for producing such filters. |
116 |
Sintered shaped body, whose surface comprises a porous layer and a method for the production thereof |
US10240177 |
2002-12-03 |
US20030180518A1 |
2003-09-25 |
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 thc 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. |
117 |
Process and apparatus for curing resin-bonded refractory brick lined ladles |
US10147825 |
2002-05-20 |
US20030060354A1 |
2003-03-27 |
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. |
118 |
Binder compositions for bonding particulate material |
US09645037 |
2000-08-24 |
US06416572B1 |
2002-07-09 |
Emad Eldemallawy; Christopher C. Nail; Gregory J. Connor |
A bonded particulate material and a method for forming an bonded particulate material are defined. The material includes a particulate metal oxide that is capable of forming a metalate in the presence of an alkali. The metal oxide particles are typically dissolved in a solution of the alkali and then dried, such that an undissolved metal oxide core remains, surrounded by a metalate which is in turn bonded to metalate of adjacent particle and/or to a fill material. |
119 |
Insulation material |
US09381877 |
1999-09-24 |
US06342088B1 |
2002-01-29 |
Peter Waldemar Klatt; Mark William Townsend |
A granular thermal insulating material comprising rice hull ash, ceramic clay binder, rice bran and an exfoliating agent, and methods to produce the insulating material. |
120 |
Binders for cores and molds |
US609111 |
1996-02-29 |
US6139619A |
2000-10-31 |
Leonid Zaretskiy; Robert L. Manning; Kwok-tuen Tse |
An inorganic binder system for foundry compositions includes a silicate and added phosphate. The composition produces a binder having the advantageous strength properties of a silicate binder system with the dispersibility properties of a phosphate binder system. Methods of making and using the binder systems and the resulting products are of particular interest to the foundry art. |