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| Number | Title | Issue Date |
| 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 |
| 7257976 | Spiral cooling of steel workpiece in a rolling process A hollow cooling box for a steel mill to be used to cool a hot steel work piece as it passes through the cooling box; the box having an interior plenum formed by the members forming the cooling box. The plenum is supplied with coolant under pressure, and the coolant... | 08/21/2007 |
| 7052647 | Method and apparatus for cooling hot rolled steel strip, and method for manufacturing hot rolled steel strip An apparatus for cooling a hot rolled steel strip comprising a transfer means arranged behind a final finishing mill, the transfer means comprising a plurality of transfer rolls for transferring the steel strip; at least one upper surface cooling means arranged at a... | 05/30/2006 |
| 7011714 | Method and device for treating the surfaces of metallic strip material, especially for pickling rolled material The invention relates to a method and a device for treating surfaces of metallic strip material (1), especially for pickling rolled material, in a treatment channel (2), with a pickling medium (3) containing acid. Jets (4) are set in the ... | 03/14/2006 |
| 6427706 | System for continuous treatment of steel strip A pickling tank for the continuous treatment of a steel strip includes a pickling trough and a recovery tank separated from one another by a linkage that allows for limited movement between the trough and recovery tank. The recovery tank includes a pair o... | 08/06/2002 |
| 6419756 | Process and equipment for pickling a metal strip Process and equipment for pickling a metal strip, in particular a rolled strip, by means of a pickling plant, through which the metal strip passes and in which the metal strip is pickled using a pickling liquid, the pickling result being a function of pic... | 07/16/2002 |
| 6264769 | Coil area for in-line treatment of rolled products Apparatus for the production and heat treatment of coiled elongated metal product of relatively small cross section, such as rods, bars and wire-rod material, is described. The elements required for the conduct of a variety of heat treatments can be perfo... | 07/24/2001 |
| 6210501 | Heavy-duty cold-rolling for mechanically descaling a hot-rolled steel strip before pickling When a hot-rolled steel strip 1 is rolled at a large rolling reduction by a cold-rolling mill 4, cracking and interlayer peeling occur in those mill-scales which can not keep up with the elongation of base steel so as to weaken the adhesiveness of the mil... | 04/03/2001 |
| 5873949 | Device for pressurized water discharge pipe A pressurized water drain apparatus, for cooling rolling stock, has a pressurized cooling pipe heat exchanger for applying water through nozzle heads onto the rolling stock in a parallel flow and a storage chamber at an outlet of the cooling pipe heat exc... | 02/23/1999 |
| 5832740 | Double-chamber heat exchanger A heat exchanger has an inner pipe inside of which a product travels, the inner pipe having a perforated lateral wall, an outer pipe surrounding the inner pipe and formed as a jacket, a plurality of flanges extending between the inner pipe and the outer p... | 11/10/1998 |
| 5776258 | Flat-rolled steel strip continuous cleansing methods In-line flat-rolled steel cleansing and finishing methods and apparatus are disclosed which enable flat-rolled steel, as supplied with surface areas contaminated with iron fines and other debris from gauge reduction operations, to be continuously processe... | 07/07/1998 |
| 5722151 | Process for making semi-finished products An apparatus and a process for making semi-finished products in the form of thin metal bars having a width-gauge ratio of over 60 and a maximum sheet metal gauge tolerance of 2%. A metal profile is fed continuously and upwardly through a pool of melt mate... | 03/03/1998 |
| 5686043 | Process and apparatus for producing coated metal An apparatus for and a method of forming a metal coated with a polymer is achieved through the provision of a reservoir containing a cooling liquid having a relative undisturbed upper surface. A metal coated with a polymer is introduced into the cooling l... | 11/11/1997 |
| 5683650 | Bubble apparatus for removing and diluting dross in a steel treating bath A bubble-actuated pump is used for removing dross from the surface of a bath of molten metal. A modification of the pump is employed for delivering molten metal to the dross for diluting it.... | 11/04/1997 |
| 5639419 | Bubble operated dross diluting pump for a steel treating bath A fabricated bubble operated pump for diluting dross in a steel treating bath.... | 06/17/1997 |
| 5634481 | Strip treatment installation An installation for pickling rolled metal strip in order to remove oxides formed thereon. The strip is fed horizontally through an acid solution bath over a series of deflecting rollers rotating about axes perpendicular to the feed direction of the strip ... | 06/03/1997 |
| 5566694 | Continuous pickling tank with expandable seals The present invention discloses a continuous, shallow bath plastic pickling tank for carbon or stainless steel strip or product. The present invention provides first and second end stands spaced from each other and secured to a foundation with a trough ex... | 10/22/1996 |
| 5466309 | Metal strip treatment installation An installation for treating metal strip comprising a pickling line made up of a series of tanks filled with a pickling solution heated to a certain temperature, and through which the metal strip is successively passed before passing into a cold rolling m... | 11/14/1995 |
| 5458485 | Method for cooling ceramics, especially ceramic tiles produced in roller kilns, and the relative plant An apparatus for cooling hot ceramic articles from above and below with steam and water.... | 10/17/1995 |
| 5330593 | Process and apparatus for the inductive hardening of elongate workpieces The invention relates to a process and apparatus for the hardening of elongate workpieces by means of an inductor 19. The apparatus comprises a rotary ring 3 mounted to rotate around a horizontal axis in a hardening basin 1 and having a number of retainin... | 07/19/1994 |
| 5318276 | Apparatus for conveying rolled stock wound into coils in the reeling installation area An apparatus for delivery of rolled stock wound into coils, especially of wire from a reel-up device and for transfer of the rolled stock coils onto conveyance arrangements located downstream, wherein the reel-up and conveyance arrangements are installati... | 06/07/1994 |
| 5121902 | Apparatus for cooling hot rolled steel rod using a plurality of air and water cooled sections A conveyor defines a path along which hot rolled steel rod is transported in the form of overlapping mutually offset rings. Air nozzles are arranged beneath the conveyor path to direct air upwardly against the rings from underlying plenum chambers fed by ... | 06/16/1992 |
| 5020779 | Method and an apparatus in hot-dip galvanizing A method and apparatus for avoiding the formation of impurities in a coating produced by hot-dip galvanizing of an object in a zinc bath. One or more flows of molten and pure zinc are, in a container, provided which are directed towards a surface region (... | 06/04/1991 |
| 5016860 | "No-nick" part-handling apparatus and method Disclosed is a part-handling apparatus for a heat-treating furnace system and its use in transferring parts such as bearing races into, through, and out of a quench tank while avoiding any part-to-part contact and thus preventing nicking of parts. The app... | 05/21/1991 |
| 5009396 | Method and apparatus for the manufacture of formable steel strip In the manufacture of formable steel strip having a thickness between 0.5 and 1.5 mm, the following process steps are performed sequentially in a continuous process: (a) in a continuous casting machine forming liquid steel into a hot slab having a thickne... | 04/23/1991 |
| 4930715 | Rotary basket winder with water cooling A rotary basket winder with water cooling for winding a material includes a tank in the shape of an open topped point containing a rotatable winding carrier with two upwardly extending concentrically arranged rings of winding rods defining an annular wind... | 06/05/1990 |
| 4890820 | Heating apparatus for a metallic strand A method for heating a metallic strand 16 such as a wire or strip comprises passing the strand 16 along a metallic tube 4 which is filled with molten metal 13, the tube wall being heated by a furnace chamber 3 through which the tube 4 extends.... | 01/02/1990 |
| 4871146 | Apparatus for heat treatment of steel rods A multifunction apparatus for the direct heat treatment of a medium- to high-carbon steel rod in a lower quench line and the treatment of low carbon steel in an upper quench line. A hot-rolled rod is transported on a conveyor in the form of a sequence of ... | 10/03/1989 |
| 4838526 | Apparatus of 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 ... | 06/13/1989 |
| 4813652 | Plant for effecting the controlled cooling of metal sheets The process controls the cooling of a metal sheet so as to impart thereto a predetermined crystalline structure. The sheet to be cooled is passed through a case containing a mass of regularly renewed cooling fluid. The flow of the cooling fluid is control... | 03/21/1989 |
| 4798367 | Apparatus of cooling steel strip in continuous heat treating line A steel strip which has been cooled through a cooling zone in a continuous heat treating line is finally cooled by immersing in cooling water in a cooling tank under the controlling in accordance with the following formula:- ##EQU1## With such c... | 01/17/1989 |
| 4783217 | Method and apparatus for producing spherical objects A method and apparatus for producing spherical objects is disclosed, the apparatus having a reservoir filled with a relatively dense molten material, the reservoir being heated and hydraulically pressurized to maintain the molten state of the dense materi... | 11/08/1988 |
| 4534198 | Cooling hot-rolled steel strip An apparatus used in combination with a hot-rolling line having a succession of roll stands through which passes a strip workpiece in a horizontal transport direction has at least one vessel downstream of the roll stands in the direction and aligned in th... | 08/13/1985 |
| 4529175 | Apparatus for annealing non-ferrous strip material It is known to anneal non-ferrous strip material by passing the strip continuously around a pair of spaced pulleys and effecting a short circuit between the incoming and outgoing strip material to form a closed electrical loop of continuously moving strip... | 07/16/1985 |
| 4436292 | System for the treatment of a continuous metal web A system for the treatment of continuous metal webs facilitates both continuous annealing and hot-dip coating operations interchanging from annealing to a combined annealing and coating, and vice-versa. The system has an annealing station common to both o... | 03/13/1984 |
| 4431168 | Apparatus for improved heat treatment of elongated aluminum alloy materials A method and apparatus for heat treating and especially annealing of elongate metallic materials such as wire wherein the wire (24) given a longer length exposure to complete the heat treatment of the wire at higher line speeds. This is accomplished eithe... | 02/14/1984 |
| 4422623 | Apparatus for cooling steel strips to effect continuous annealing A steel strip heated to a temperature above a recrystallization temperature is passed through a cooling unit including a plurality of cooling rollers cooled by cooling water flowing through the interior thereof. The steel strip is caused to pass alternate... | 12/27/1983 |
| 4417720 | Continuous heat treatment plant for steel sheet The continuous steel-sheet heat-treatment plant comprises, in sequence, a zone in which the sheet is heated to a temperature above the recrystallization temperature, a zone in which the sheet is held at this temperature for more than 30 seconds, a rapid c... | 11/29/1983 |
| 4415143 | Continuous hardening device of steel plate A continuous hardening device of steel plate of a type wherein steel plate is continuously cooled and hardened by cooling water. The cooling water is continuously supplied into and exhausted out of a water vessel (10) provided in the path of the steel pla... | 11/15/1983 |
| 4401294 | Apparatus for coiling and cooling wire rod Apparatus for coiling and cooling wire rod comprises a turn-laying head, a coil receiver below the head, movable downwards to maintain a constant distance between the head and the top of the coil, and a cooling tank which is vertically movable. In an uppe... | 08/30/1983 |
