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| Number | Title | Issue Date |
| 7520946 | Apparatus and process for the dry removal of the scale found on the surface of metal products An apparatus and process for the dry removal of the scale from the surface of a metal product comprising at least one heating area that does not reduce the specific surface of the material to be treated and does not cause oxidation, at least one reducing area for pe... | 04/21/2009 |
| 6773522 | Process and device for producing a high-strength steel strip A process and device for producing a high-strength steel strip. In the process, liquid steel is cast in at least one continuous-casting machine (1) with one or more strands to form a slab and, utilizing the casting heat, is conveyed through a furnace device (... | 08/10/2004 |
| 6616778 | Process and device for producing a ferritically rolled steel strip A process for producing a ferritically rolled steel strip, in which liquid steel is cast in a continuous-casting machine (1) to form a slab and, utilizing the casting heat, is conveyed through a furnace device (7) undergoes preliminary rolling in a prelim... | 09/09/2003 |
| 6533876 | Process and device for producing a steel strip or sheet Process for producing a steel strip or sheet, in which liquid steel is cast in a continuous-casting machine to form a thin plate and, while making use of the casting heat, is fed through a furnace device, is roughed in a roughing stand to a pass-over thic... | 03/18/2003 |
| 6475308 | Process for the production of a strip of hot rolled steel of very high strength, usable for shaping and particularly for stamping Process for the production of a hot rolled metal strip of very high strength, usable for shaping and particularly for stamping, characterized in that a steel of the following weight composition: carbon, 0.12-0.25%; manganese, 1-2%; aluminum, 0.03-2.5%; si... | 11/05/2002 |
| 6464808 | Method and apparatus for reducing wrinkles on a strip in a rapid cooling zone of a heat treatment line A method is disclosed for reducing the formation of wrinkles on metal strip subject to cooling in continuous heat treatment lines in which the strip passes through cooling zones through which cooling gas flows. The method includes the step of gradually mo... | 10/15/2002 |
| 6410163 | High strength thin steel sheet, high strength alloyed hot-dip zinc-coated steel sheet, and method for producing them The present invention provides a high strength thin excellent workability and galvanizability, having a composition comprising from 0.01 to 0.20 wt. % C, up to 1.0 wt. % Si, from 1.0 to 3.0 wt. % Mn, up to 0.10 wt. % P, up to 0.05 wt. % S, up to 0.10 wt. ... | 06/25/2002 |
| 6270597 | Process for continuous heating and cleaning of wire and strip products in a stratified fluidized bed This invention is directed to a method for annealing strand wires or strips in a fluidized bed reactor having an atmosphere of fluidized gases flowing through fluidized particles. The method provides for stratifying the atmosphere of fluidized gases by pa... | 08/07/2001 |
| 6023048 | Cooling furnaces for strip products Apparatus which eliminates the risk of forming wrinkles on a strip conveyed through a cooling furnace of a continuous heat-treatment plant, especially an annealing or galvanizing furnace, through which the strip is conveyed by rolls, the latter being heat... | 02/08/2000 |
| 5833778 | Apparatus and method for the manufacture of DR steel strip Apparatus and method for manufacture of DR (Double Rolled) steel strip in which a continuous annealing furnace is arranged for annealing of cold-reduced steel strip passing continuously through said furnace, and a rolling mill for cold-rolling of steel st... | 11/10/1998 |
| 5827056 | Device and method for improving strip tracking in a continuous heating furnace A method and tracking system for optimizing the tracking of a metal strip traveling over a plurality of crowned rolls in a continuous heating system designed to track a design strip having a design strip temperature profile. The invention attains an actua... | 10/27/1998 |
| 5497817 | Method for continuously annealing steel strip In an apparatus for continuously annealing a steel strip after cold rolling, stable operation of the annealing apparatus can be obtained by preventing slippage of bridle rolls and hearth rolls. The diameter D of a bridle roll is set so that a surface pres... | 03/12/1996 |
| 5480499 | Method for guiding a steel strip during its passage through a continuous treatment plant A method of guiding a steel strip during its passage through a continuous strip treatment plant equipped with a series of treatment stations, wherein the travel direction and/or travel track of the strip can be adjusted as desired and/or the strip is turn... | 01/02/1996 |
| 5226989 | Method for reducing thickness of a titanium foil or thin strip element Leaders are attached to opposite ends of a titanium foil or thin strip element and are partially coiled on respective reels spaced at opposite sides of a cluster rolling mill to transfer the titanium element back and forth between the reels to move the el... | 07/13/1993 |
| 4935071 | Baking of lithographic plates The tendency of lithographic plates to buckle during baking under top heat with the result that the heat treatment is not uniform to minimised by passing the plates through an oven on a conveyor belt which inclines upwardly over part of its path and then ... | 06/19/1990 |
| 4878961 | Method and system for controlling tension to be exerted on metal strip in continuous annealing furnace An annealing operation is performed with controlling tension force to be exerted on a metal strip depending upon thermal crown of hearth rolls. The thermal crown magnitude is assumed based on various factors influencing for the magnitude of the effective ... | 11/07/1989 |
| 4872923 | Die-less drawing method and apparatus Method and apparatus for heating, cooling and stretching a metal specimen as it is being elongated, according to a temperature curve selected to provide a finished product having a predetermined microstructive, ultimate tensile strength, yield point and c... | 10/10/1989 |
| 4729800 | Method for cooling steel strip Disclosed is an improvement of final cooling of the steel strip by immersing in cooling water, which strip has been cooled through a cooling zone in a continuous heat treating line. The improvement is achieved by injecting cooling water to the surface of ... | 03/08/1988 |
| 4725321 | Method for cooling a steel strip in a continuous annealing furnace The present invention relates to a method for cooling a steel strip in a continuous-annealing furnace. Conventionally, the steel strip is cooled by a water medium and, thus, oxidation is inevitable. Recently developed roll cooling methods can prevent oxid... | 02/16/1988 |
| 4724014 | Method for cooling a steel strip in a continuous annealing furnace The present invention relates to a method for cooling a steel strip in a continuous-annealing furnace. Conventionally, the steel strip is cooled by a water medium and, thus, oxidation is inevitable. Recently developed roll cooling methods can prevent oxid... | 02/09/1988 |
| 4705579 | Method for cooling a metal strip in a continuous annealing furnace The present invention relates to a method and apparatus for cooling a steel strip in a continuous annealing furnace, wherein the steel strip is continuously conveyed through a heating zone, a soaking zone, and, occasionally, an overaging zone and a second... | 11/10/1987 |
| 4673447 | Method for supporting a metal strip under static gas pressure A metal strip is supported under static gas pressure by using an apparatus which comprises a pair of gas pressure pads facing each other and located symmetrically about a predetermined moving path of the metal strip, each gas pressure pad having an openin... | 06/16/1987 |
| 4618379 | Method for the continuous annealing of steel strips This invention relates to the continuous annealing of moving steel strips. A rapid quenching between the annealing treatment and the overaging process is effected in an electrolytic pickling bath, in which the steel strip acts first as a cathode and there... | 10/21/1986 |
| 4571274 | Method for continuous annealing of a metal strip In the operation of a continuous-process annealing furnace for a steel strip of a continuous length which is guided through the high-temperature zones of the furnace by the upper and lower hearth rolls in an alternate up and down vertical movement, each o... | 02/18/1986 |
| 4502897 | Method for producing hot-rolled steel sheets having a low yield ratio and a high tensile strength due to dual phase structure The present invention aims to obtain C-Si-Mn-Cr system of hot-rolled dual phase structured steel sheets having a low yield ratio YR of not greater than 65%, an excellent strength-elongation balance M, a low variation in quality and an excellent cold forma... | 03/05/1985 |
| 4497674 | Method and apparatus for continuously annealing steel sheet Steel strip is continuously annealed while successively travelling through a heating, soaking, primary cooling, overaging and secondary cooling zone in an annealing furnace. In the overaging zone, an endless steel strip is allowed to run through a passage... | 02/05/1985 |
| 4448614 | Process for cooling a cold rolled steel strip A cold rolled steel strip having an elevated temperature is continuously cooled to a desired temperature at a desired cooling rate by a process comprising moving the cold rolled steel strip along at least one vertical cooling path, and; bringing a plurali... | 05/15/1984 |
| 4401484 | Method for heat treatment of metal strips A method for the heat treatment of metal strips which comprises heating and cooling a metal strip while allowing the strip to pass through a heat treatment apparatus in a floating manner. When passing through the apparatus in such a manner, the strip is c... | 08/30/1983 |
| 4385945 | Lift-off means and method for use with a horizontal continuous hearth roll furnace for the treatment of metallic strip Improved means and method are provided for the guidance of metallic strip in a horizontal continuous furnace having hearth rolls and wherein the strip temperature and furnace atmosphere are such as to promote the transfer of metal, oxides, dirt and the li... | 05/31/1983 |
| 4290829 | Process for box annealing a steel strip coil A box annealed steel strip having small strains is produced by: pretreating a steel strip in such a manner that a side edge portion thereof is thermally treated under a different condition from another condition under which the remaining portion, includin... | 09/22/1981 |
| 4288258 | Method for cooling a metal strip during the process of heat treatment During the process in which a metal strip is moved in a floating condition, the metal strip is first heated, and thereafter cooled and annealed. In cooling the metal strip, the metal strip is cooled so that both edges widthwise thereof are lowered in temp... | 09/08/1981 |
| 4270959 | Method for the heat treatment of metal strip During the process in which a metal strip is moved in a floating condition, the metal strip is first heated, and thereafter cooled and annealed. In heating the metal strip, the metal strip is heated so that a central portion widthwise thereof is increased... | 06/02/1981 |
| 4047985 | Method and apparatus for symmetrically cooling heated workpieces The disclosure pertains to an arrangement for cooling a heated workpiece, such as, strip or slab as it issues from a rolling mill or continuous slab caster. The longitudinally moving workpiece is caused to pass between a number of coolant discharge header... | 09/13/1977 |
