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| Number | Title | Issue Date |
| 7527701 | Method and plant for cooling a moving metal strip In order to cool a metal strip (2) which moves in a continuous manner: the strip (2) is pressed onto a main cooling roller (10) so that the strip forms an arc whose inner face delimits, with the outer face of this roller, a contact zone w... | 05/05/2009 |
| 7374624 | Vertical plate dip quench A method and apparatus for quenching steel plates after they come from an austenitizing furnace. The plates are rotated to a vertical orientation and rapidly submerged into a water bath while being held flat between reciprocating rolls. The superior uniformity and s... | 05/20/2008 |
| 7096075 | Apparatus, method and program for physical state controller For determination as to whether there is a possibility that temperature control satisfying conditions according to an upper limit LH_i and a lower limit LL_i of the annealing control temperatures of annealing object steel sections i will be realized under restrictio... | 08/22/2006 |
| 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 |
| 6531007 | Method for the manufacture of steel products of a precipitation hardened martensitic steel, steel products obtained with such method and use of said steel products A method for the manufacture of steel products and products thus produced, wherein steel is subjected to precipitation hardening in a martensitic structure subsequent to soft annealing and thereafter shaping. The method steps include shaping followed by s... | 03/11/2003 |
| 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 |
| 6348112 | Method for manufacturing a trailer hitch assembly Disclosed is a method of making a trailer hitch assembly for use with automobiles, trucks and other vehicles. The trailer hitch assembly comprises a crossbeam assembly and a pair of side brackets disposed on opposite ends of the crossbeam assembly. The cr... | 02/19/2002 |
| 6331219 | Retarded cooling system with granular insulation material A system for cooling a hot rolled steel product at a retarded cooling rate comprises a laying head for forming the product into a continuous series of rings. A conveyor receives the rings from the laying head at a receiving station and transports the ring... | 12/18/2001 |
| 6210500 | Method of heat treat hardening thin metal work pieces A heat treat fixture is provided for supporting thin sheet-like work pieces, such as metal gasket layers, during heat treatment to achieve uniform hardness and properties of the work piece while preventing warpage. The fixture has porous, planar support w... | 04/03/2001 |
| 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 |
| 5855702 | Method and apparatus for quenching workpieces A method and an apparatus are disclosed for quenching workpieces. The workpieces are exposed to a flow of a quenchant fluid. The flow is reversed in its direction. The workpieces are moved through the flow along an axis being essentially transversely to t... | 01/05/1999 |
| 5656106 | Apparatus and method for net shape finishing of gears An apparatus is disclosed for performing thermomechanical processing of gears in which precise control of the thermal, metallurgical and mechanical action during the forming process is maintained. The apparatus comprises an induction heating system which ... | 08/12/1997 |
| 5423924 | Method for the heat treatment of at least one metal wire with heat-transfer plates A method and for the heat treatment of at least one metal wire (1), chararized by passing the wire (1) within at least one pair of thermal transfer plates (2, 2a, 2b) between two grooves (8, 8a, 8b) made in the two plates (2, 2a, 2b) of each of said pair... | 06/13/1995 |
| 5390900 | Metal strip cooling system An apparatus and method for cooling a metal strip, the apparatus having a header that receives and directs a curtain of water across the strip, a water collector on one side of the curtain of water and a source of air on the opposite side of the curtain o... | 02/21/1995 |
| 4861394 | Controlled slow cooling of steel tubulars Steel tubulars are deposited into an insulated container shortly after the steel tubulars are formed in a seamless hot rolling machine. The tubulars are covered by an insulating blanket and allowed to cool at a selected rate to form desired microstructure... | 08/29/1989 |
| 4704166 | Process for the production of medium carbon steel wire rod In the production of medium carbon steel wire rod, upon leaving the hot rolling mill, the rod is cooled in two phases. The first phase is operative as the rod moves at end-of-rolling speed along a cooling line disposed between the finishing block and feed... | 11/03/1987 |
| 4625532 | Manufacturing steel concrete reinforcements on a high speed rod rolling mill Steel concrete-reinforcing rod is manufactured on a high speed rod rolling ill including a finisher followed by a cooling device for superficial quenching. The traction applied to the product leaving the finisher and approaching the cooling device is arran... | 12/02/1986 |
| 4527408 | Method and Apparatus for cooling and handling hot rolled steel rod in direct sequence with a high speed rolling operation A method and apparatus for quenching steel rod in a high speed rolling mill is provided wherein a liquid coolant is preliminarily applied to the rod prior to its exiting from the mill finishing train in order to increase the column strength of the exiting... | 07/09/1985 |
| 4468262 | Method of cooling hot-rolled wire rods A method of cooling a rod delivered successively from a hot rolling mill while transferring it. The method involves coiling the rod into rings, forming the rings into a densely packed coil in which the centers of the rings are slightly offse, conveying th... | 08/28/1984 |
| 4415381 | Method for forcedly cooling a heated metal plate A method for forcedly cooling a heated metal plate, which comprises: moving a heated metal plate horizontally in the longitudinal direction of said metal plate at a prescribed speed through a cooling equipment comprising a plurality of rows of nozzles arr... | 11/15/1983 |
| 4152180 | Water spray quench process A water spray quench process and apparatus for the hardening of steel agricultural discs and like articles with minimum warpage and maximum exposure to the quenching water. A steel article heated in a furnace to a temperature above its austenitizing tempe... | 05/01/1979 |
| 4148673 | Plate quenching method A method and apparatus for quenching steel plates after they come from an austenitizing furnace. The plates are stopped and their surfaces flooded with large volumes of water applied almost instantaneously. The valves which control water application are o... | 04/10/1979 |
| 4112732 | Method and apparatus for shaping integrally-shaped type brake disks for cars An apparatus and method for forming an integrally-shaped brake disk for a vehicle. The method comprises heating the brake disk material, and maintaining the material heated while it is inserted between upper and lower dies of the apparatus. The central an... | 09/12/1978 |
| 4099996 | Process for heat-treating the head of railroad rail In the process of heat-treating the head of a railroad rail wherein the rail is stressed so that the head forms a convex arc of predetermined height, the arc height is decreased about 14% after about 10% of the rail head has been heated, and then the orig... | 07/11/1978 |
| 4098624 | Process for increasing the versatility of isothermal transformation An isothermal transformation process or method is disclosed for heat treating metals of the class which is characterized by having a time-temperature-transformation, or T-T-T Diagram or Isothermal Transformation Diagram. The process includes the steps of ... | 07/04/1978 |
| 4032369 | Method for quenching ferrous tubing to achieve full hardening without quench cracking A method for bringing a quenching medium into contact with both the inner and outer wall surfaces of metallic tubing, characterized in that a quenching liquid is fed into the interior of the tubing and pressurized, followed by quenching of the outer wall ... | 06/28/1977 |
| 4032365 | Warm form cooling and heat recovery tunnel A method for controlling the temperature of a formed workpiece is provided. The method utilizes an apparatus in the form of a multi-tier rotary preheat, quench and heat recovery tunnel which provides for transfer of heat between tiers from workpieces to b... | 06/28/1977 |
| 4011112 | Multi-sectioned cooling method for heated steel material Heated steel material which is to be cooled is multi-sectioned in the longitudinal direction of said material into n zones. Spaced apart zones of the n zones are individually cooled, and then the material is finally cooled as a whole.... | 03/08/1977 |
| 3977914 | Method of deformation-free quenching of work-pieces heated to hardening temperature The invention relates to a method of deformation-free quenching of work pieces having a free flange, e.g. boiler bottoms, heated up to hardening temperature, and to a device for carrying out the method. Upon removal from the hardening furnace the work-pie... | 08/31/1976 |
| 3963535 | Method for controlling quenching A method for regulated cooling of hot objects by liquid medium or media in which the cooling is varied by varying the pressure under which said cooling takes place, and means for carrying out the method, said means comprising an open or closed container f... | 06/15/1976 |
