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| Number | Title | Issue Date |
| 7388177 | Mobile induction brazing and quenching machine An induction brazing and quenching apparatus and related method of coupling components together. ... | 06/17/2008 |
| 7338629 | Integrated metal processing facility A system and method for forming and heat treating a metal casting are provided. ... | 03/04/2008 |
| 7323135 | Apparatus for controlling gas layer thickness on the surface of casting rolls in a twin roll strip caster An apparatus for controlling gas layer thickness on the surface of casting rolls in a twin roll strip caster includes: a pair of chambers fixedly mounted on both lateral portions of the meniscus shield in a width direction of a strip; blocking units for blocking int... | 01/29/2008 |
| 7253381 | Multi-frequency heat treatment of a workpiece by induction heating An apparatus and process are provided for multi-frequency induction heat treatment of workpieces including gears. High frequency power is applied to an induction coil that surrounds the workpiece so that a high frequency magnetic field couples with the workpiece to ... | 08/07/2007 |
| 6984356 | Method and apparatus for the continuous production of foamed metals A method for continuously producing foamed metals is disclosed. The method comprises the steps of (i) adding a previously dissolved molten metal to a viscosity-enhancing furnace and agitating the molten metal so as to uniformly maintain the viscosity of the molten m... | 01/10/2006 |
| 6929773 | Slag detector for molten steel transfer operations A method of determining disturbances when discharging molten metal from a metallurgical container having an outlet into a receiving container. In steps of this process, a real time video image of the teeming stream is monitored to detect the presence of a slag phase... | 08/16/2005 |
| 6911607 | Dosing device The invention relates to a dosing device for mixing additive into a basic flow, comprising: a passage for the basic flow; an inlet for the additive in the passage; a container for the additive connected to the inlet via a dosing mechanism and having a controllable d... | 06/28/2005 |
| 6843957 | Ultrasonic impact methods for treatment of welded structures This invention provides methods of treatment for work products of materials such as steel, bronze, plastic, etc. and particularly welded steel bodies by pulse impact energy, preferably ultrasonic, to relax fatigue and aging and extend expectant life. The treatment m... | 01/18/2005 |
| 6737014 | Slag detector for molten steel transfer operations A method of determining disturbances when discharging molten metal from a metallurgical container having an outlet into a receiving container. In the first step of this process, one directly or indirectly detects mechanical vibrations caused by the discharge of molt... | 05/18/2004 |
| 6576039 | Method and apparatus for metal pouring A method and apparatus is disclosed to improve the metal yield by adjusting the tilt angle of a tilting vessel having a submerged tap hole. The tilt angle is adjusted in response to parameters inherent in the pouring process, i.e. the proximity of the ves... | 06/10/2003 |
| 6544314 | Process and apparatus for automatically controlling slag foaming A metal alloy, such as steel, is manufactured in an electric arc furnace system equipped with at least one sensor, at least one a controller including a logic program and a variable valve in fluid communication with the furnace and a material source. The ... | 04/08/2003 |
| 6395221 | Tilting rotary furnace system for recovery of non-ferrous metals from scrap or dross and method of operation A furnace system for recovering a non-ferrous metal from a charge of material containing the metal. The furnace system having a furnace chamber having walls defining a refractory chamber, the refractory chamber receiving the charge of material and the met... | 05/28/2002 |
| 6280499 | Yield metal pouring system Clean metal pour form a tilting, side-tapped furnace containing metal and slag is maximized by determining metal residuum remaining in the furnace from measuring the liquid metal poured into the receiving ladle and adjusting the furnace tilt angle to mini... | 08/28/2001 |
| 6273975 | Method for producing a metal strip and device for reducing the risk of such a strip breaking A method for producing a metal strip which reduces the risk of the strip breaking over the course of a path, the strip being conveyed under stress in the strip direction and in which, in an upstream feed path of the metal strip, defects in the edges of th... | 08/14/2001 |
| 6174390 | Spiral parts heat treatment apparatus and method, and spiral part A spiral parts heat treatment apparatus includes a first guide, a transfer unit, a second guide, and a controller. The first guide has a carrier portion that continuously conveys the manufactured spiral parts carried thereon in a longitudinal direction. T... | 01/16/2001 |
| 6120428 | Loading assembly for a cushioning conversion machine and method thereof A cushioning conversion machine and method employing a loading assembly that eliminates the need to manually thread sheet-like stock material through a forming assembly of the machine during a loading operation. The loading assembly and associated method ... | 09/19/2000 |
| 6074598 | Method and apparatus for slag separation sensing A method and apparatus for improving the yield of molten metal discharged from a metal production vessel limits the slag carryover by reducing turbulence of metal pouring through a discharge opening by inhibiting a vortex over the discharge opening, autom... | 06/13/2000 |
| 5964920 | Method and apparatus for reduction of metal particulates The invention disclosed herein utilizes magnetic forces to draw metal particles having magnetic characteristics into and beneath the surface of a molten metal stream flowing through a non-magnetic trough. The apparatus of the present invention includes a ... | 10/12/1999 |
| 5885522 | Method and apparatus for heat treating and straightening structural members An apparatus (20) for induction heat treating, restraint quenching, and straightening an associated carbon steel truck structural member (30), having a web (32) and at least one flange (34) substantially perpendicular thereto, comprises a heat treating ap... | 03/23/1999 |
| 5846341 | Method of carrying out diagnostics on a process for the thermo-chemical treatment of steels and alloys in a glow discharge and a device for carrying out the said method The proposed method of carrying out diagnostics on a process for the thermo-chemical treatment of steels and alloys in a glow discharge involves monitoring the ionization characteristics of the atmosphere as revealed by the intensity of the electromagneti... | 12/08/1998 |
| 5785772 | Method and apparatus for controlling galvanneal induction furnace operation A method for controlling operation of a galvanneal induction furnace includes the steps of providing a steel strip having a molten zinc coating applied thereto and transporting the strip to an induction furnace in which the strip and coating are to be all... | 07/28/1998 |
| 5700335 | Process and device for regulating the calorific output in a continuous annealing and processing line for continuously cast metal products A process and device are disclosed for regulating the annealing power in at least one annealing section of a continuous annealing and processing line for continuously cast metal products. The speed of the cast products (D) passing through the continuous a... | 12/23/1997 |
| 5650117 | Slag detecting apparatus and method Both an apparatus and method for detecting slag in a flow of molten metal conducted through a ladle shroud are provided. In the apparatus, first and second conductive pins are mounted beside one another in a wall of the ladle shroud, the first being in co... | 07/22/1997 |
| 5630957 | Control of power to an inductively heated part A process for induction hardening a part to a desired depth with an AC signal applied to the part from a closely coupled induction coil includes measuring the voltage of the AC signal at the coil and the current passing through the coil; and controlling t... | 05/20/1997 |
| 5601743 | Apparatus for determining the solid contents of a slug by induction heating In order to determine the contents of solids in a heated elongated slug of thixotropic metal having a longitudinal axis, there is an apparatus comprising an inductive heating coil with electrical winding. Moreover, a sensor includes at least one measuring... | 02/11/1997 |
| 5597527 | Thermomagnetic apparatus for determining optimum heat treatment of alloys The disclosure is of apparatus for determining the transformation characteristics of a metal alloy by treating the alloy to render it austenitic and then monitoring the isothermal decomposition of the austenite by measuring the magnetic change in the allo... | 01/28/1997 |
| 5547171 | Apparatus and method for atomizing liquid metal with viewing instrument An apparatus and method for atomizing liquid metal are disclosed. A liquid metal supply is coupled to a nozzle for atomizing a stream of liquid metal in an atomizing zone extending from the nozzle. A viewing instrument provides a field of view extending t... | 08/20/1996 |
| 5362031 | Method and apparatus for the automatic monitoring of operating safety and for controlling the progress of the process in a vacuum heat-treatment oven In a vacuum heat treating oven operating with hydrogen under pressure as the cooling medium, especially for the quenching of greatly heated metal workpieces (5), a method is provided for the automatic control of the progress of the process and for monitor... | 11/08/1994 |
| 5286276 | Quenching system to prevent loss of fluidity in a reaction vessel A quench system which can be used to quench a continuous reaction such as the continuous digestion of titaniferous ores with sulphuric acid is provided. The quench system comprises a pressure vessel (1) equipped with a full bore outlet valve (5) connected... | 02/15/1994 |
| 5242512 | Method and apparatus for relieving residual stresses An apparatus for relieving residual stresses and stabilizing modal behavior in a workpiece, and/or analyzing change in modal behavior of a workpiece to detect buildup of residual stresses. The apparatus includes an exciter for vibrating the workpiece. In ... | 09/07/1993 |
| 5231645 | Method of controlling continuous carburization furnace In the continuous carburization furnace in which the temperature of the heaters can be controlled individually at every carburization processing position; carburization reference data at each carburization processing position is read; a temperature and ca... | 07/27/1993 |
| 5230857 | Strip elongation control in continuous annealing furnaces Strip elongation in a continuous annealing furnace is controlled by passing the strip around a first driven roll, thence through a portion of the furnace, thence around a second driven roll, wherein the elongation of the strip is sensed. One method is to ... | 07/27/1993 |
| 5203909 | Method and apparatus for slag free casting The present invention provides a new and improved method and apparatus for tapping molten metal through the tap hole of a metallurgical vessel. The apparatus utilizes a ladle or a BOF furnace or other metallurgical vessel used for the containment of molte... | 04/20/1993 |
| 5182074 | Apparatus for continuously cooling metal strip An apparatus for continuously cooling a metal strip, which comprises: at least one cooling roll, which is freely rotatable and in contact with a metal strip continuously travelling in the longitudinal direction thereof, for continuously cooling the metal ... | 01/26/1993 |
| 5127941 | Process and device for separating the constituents of an alloy The invention relates to a process for separating the constituents of an alloy, especially an alloy comprising a refractory base metal and at least one nonrefractory additive metal, which consists in: heating said alloy by means for preferably continuous melti... | 07/07/1992 |
| 5110365 | Control of furnace cleaning for reflective ash using infrared imaging A method and apparatus for monitoring reflective ash deposited on a furnace wall to be cleaned, comprises an infrared video camera or other mechanism for taking an infrared image of the furnace wall. The image must include an area to be cleaned by the wat... | 05/05/1992 |
| 5096502 | Advanced water lance control system based on peak furnace wall emissivity A method and apparatus for controlling the operation of a water lance for water cleaning a furnace wall comprises a sensor or calculation equipment to derive the furnace wall emissivity and equipment that compares the emissivity to a programmed low setpoi... | 03/17/1992 |
| 5094695 | Furnace cleanliness monitor for high reflectivity ash A method and apparatus of initiating and terminating the cleaning of a furnace wall to remove reflective ash which been deposited thereon, comprises a video or infrared monitor which monitors the light being reflected from the furnace wall or the ratio of... | 03/10/1992 |
| 4996402 | Method and apparatus for continuously melting material by induction heating A method of continuously melting a material comprises the steps of depositing carbon in a crucible furnace provided with a melt outlet and an inlet in an upper portion thereof, heating the carbon by electromagnetic induction heating by an electromagnetic ... | 02/26/1991 |
| 4964621 | Apparatus for heat treating a carbon steel wire A process for heat treating a carbon steel wire to obtain a fine pearlite structure is characterized by the following steps: (a) cooling the wire until the wire reaches a given temperature which is below the AC1 transformation temperature; (b) ... | 10/23/1990 |
