Class / Patent application number | Description | Number of patent applications / Date published |
164461000 | Forming a composite article | 9 |
20090056904 | Sequential casting of metals having the same or similar co-efficients of contraction - A method and apparatus is disclosed for casting metals in a DC mold to form an ingot or product having at least two layers formed by sequential solidification. The apparatus has at least one cooled divider wall at the entry end portion of the mold to divide the entry end portion into at least two feed chambers. Metal is fed to the chambers to form an inner layer and at least one outer layer. The divider wall has a metal-contacting surface for contacting the metal for the at least one outer layer, the surface being arranged at an angle sloping away from the metal for the outer layer in a downward direction. The angle is larger at the center of the divider wall compared to the angle adjacent to each longitudinal end thereof. The apparatus is suitable for co-casting metals having similar coefficients of contraction to minimize problems of adhesion between the layers of a resulting ingot or rolled products produced therefrom. | 03-05-2009 |
20090159233 | Method for Manufacturing Molten Metal Plated Steel Strip - To stably manufacture a high-quality molten metal plated steel strip while splashes caused in use of a gas wiping nozzle for controlling the plating amount is prevented. A gas wiping nozzle is used which includes a primary nozzle portion and at least one secondary nozzle portion provided either or both above and below the primary nozzle portion. The secondary nozzle portion jets a gas in a direction tilted from the direction in which the primary nozzle portion jets the gas, and the secondary nozzle portion jets the gas at a lower flow rate than the primary nozzle portion. The gas wiping nozzle has a tip whose lower surface forms an angle of 60° or more with the steel strip. By jetting a gas from the secondary nozzle portion at predetermined conditions, the gas jet can scrape molten metal effectively. By controlling the angle between the lower surface of the gas wiping nozzle and the steel strip, the plating can be scraped more effectively. Thus, the molten metal can be appropriately scraped without excessively increasing the gas pressure. Consequently, splashes can be reduced. Furthermore, the gas jetting port of the secondary nozzle portion is displaced in the direction opposite to the steel strip at least 5 mm apart from the gas jetting port of the primary nozzle portion, and the secondary nozzle portion jets the gas so that the flow rate of the secondary gas jet comes to 10 m/s or more at the confluence with the primary gas jet from the primary nozzle portion. | 06-25-2009 |
20100288463 | APPARATUS FOR MANUFACTURING MOLTEN METAL COATED STEEL STRIP AND METHOD FOR MANUFACTURING MOLTEN METAL COATED STEEL STRIP - An apparatus for manufacturing a molten metal coated steel strip configured to control the amount of a metal coated on surfaces of a steel strip by blowing a gas from gas wiping nozzles to the surfaces of the steel strip continuously drawn from a molten metal, includes molten-metal-reducing members arranged on both sides of the steel strip below the surface of the molten metal in the coating bath to face the steel strip, each of the molten-metal-reducing members having a length equal to or longer than the steel-strip width, and shields arranged between the molten-metal-reducing members each extending along an extension of a corresponding one of the surfaces of the steel strip. | 11-18-2010 |
20110036530 | System and Method for Integrally Casting Multilayer Metallic Structures - A process of making a multilayer metallic casting includes steps of simultaneously forming a first layer of a first metallic material and a second layer of a second metallic material using a continuous casting process, and continuously bonding the first and second layers to form a integrally cast multilayer metallic casting. The process may be performed using a twin-roll type continuous casting system having a continuous casting mold that includes a first mold compartment for receiving a molten first metallic material and a second mold compartment for receiving a molten second metallic. The molten first and second types of metallic material are gradually solidified into semi-solid shells and are pressed together by opposed casting rolls, creating a metallurgical bond between the first and second types of metallic material in order to form an integrally cast multilayer metallic casting. The process permits the large scale efficient manufacturing of near net shape multilayer metallic castings. | 02-17-2011 |
20110036531 | System and Method for Integrally Casting Multilayer Metallic Structures - A process of making a multilayer metallic casting includes steps of simultaneously forming a first layer of a first metallic material and a second layer of a second metallic material using a high speed continuous casting process, and continuously bonding the first and second layers to form a integrally cast multilayer metallic casting. The process may be performed using a twin-roll type continuous casting system having a continuous casting mold that includes a first mold compartment for receiving a molten first metallic material and a second mold compartment for receiving a molten second metallic. The molten first and second types of metallic material are quickly solidified into semi-solid shells and are pressed together by opposed casting rolls, creating a metallurgical bond between the first and second types of metallic material in order to form an integrally cast multilayer metallic casting. The process permits the high speed efficient manufacturing of near net shape multilayer metallic castings. | 02-17-2011 |
20110042032 | FUNCTIONALLY GRADED METAL MATRIX COMPOSITE SHEET - The present invention discloses a method of making a functionally graded metal matrix composite (MMC) sheet having a central layer of particulate matter, the particular matter having a size of at least about 30 microns. The method includes providing a molten metal containing particulate matter to a pair of advancing casting surfaces. Solidifying the molten metal while advancing the molten metal between the advancing casting surfaces to form a product comprising a first solid outer layer, a second solid outer layer, and a semi-solid central layer having a higher concentration of particulate matter than either of the outer layers. Solidifying the central layer to form a solid metal product comprised of a central layer sandwiched between the outer layers and withdrawing the metal product from between the casting surfaces. | 02-24-2011 |
20110073272 | METHOD OF PRODUCING ALUMINUM SUBSTRATE FOR PLANOGRAPHIC PRINTING PLATE AND METHOD OF RECYCLING PLANOGRAPHIC PRINTING PLATE - A method of producing an aluminum substrate for a planographic printing plate is provided in which a recycled material including a used planographic printing plate having a planographic printing plate support obtained by treating an aluminum substrate is prepared, a recycled bare metal is obtained from the recycled material, and a new aluminum bare metal and a trace-metal master alloy of necessary amounts are mixed into the recycled bare metal to produce a new aluminum substrate. | 03-31-2011 |
20110146937 | METHOD FOR CASTING A COMPOSITE INGOT - Method and apparatus employing a casting mould including a liquid feed end for supplying the casting mould with molten second alloy and an exit end with an outlet for casting molten second alloy downwardly. While continuously moving the mould and an elongated solid first alloy substrate relative to one another casting molten second alloy passes downwardly through at least one outlet of the mould onto an upper surface of the substrate at a temperature wherein the substrate locally at least partly remelts beginning at a reference point of a remelting zone and mixes at least partly with molten second alloy to form an alloy pool. After remelting the molten alloy pool continuously cools and solidifies at a location away from the reference point and joins the substrate to form composite ingot including at least two separately formed layers of one or more alloys before discharging from the mould. | 06-23-2011 |
20160008881 | METHOD OF UNIDIRECTIONAL SOLIDIFICATION OF CASTINGS AND ASSOCIATED APPARATUS | 01-14-2016 |