Having Casting Material Cooling Means Patents (Class 164/443)
  • Patent number: 9962760
    Abstract: A titanium slab is appropriate for hot rolling, is produced by electron beam melting furnace, has superior linearity so that it can be fed into a hot rolling machine without performing breaking down process or other subsequent correcting process after production, and has good structure having no cracks at the corner parts. A process for production thereof is also provided. The titanium slab is directly produced by a mold of an electron beam melting furnace, and has the deformation of not more than 5 mm for the thickness direction versus the longitudinal direction and deformation of not more than 2.5 mm for the width direction versus the longitudinal direction, both per a length of 1000 mm of the slab. The process for production of this titanium slab for hot rolling has a step of using an electron beam melting furnace in which its rectangular mold has mold walls of a long side and mold walls of a short side, and a step of pouring molten metal from one of the mold walls of a short side.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: May 8, 2018
    Assignees: TOHO TITANIUM CO., LTD., NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Hisamune Tanaka, Norio Yamamoto, Takeshi Shiraki, Takashi Oda, Yoshimasa Miyazaki, Yoshihiro Fujii, Kazuhiro Takahashi
  • Patent number: 9719154
    Abstract: The present invention provides a titanium slab for hot rolling which can be fed into a general purpose hot-rolling mill for producing strip coil, without passage through a breakdown process such as blooming or a straightening process, and can further suppress surface defect occurrence of the hot-rolled strip coil, and a method of producing and a method of rolling the same, characterized in that in the cast titanium slab an angle ? formed by the crystal growth direction (solidification direction) from the surface layer toward the interior and a direction parallel to the slab casting direction (longitudinal direction) is 45 to 90°, and moreover, there is a surface layer structure of 10 mm or greater whose ? is 70 to 90°, and further characterized in that a crystal grain layer of 10 mm or greater is formed whose C-axis direction inclination of a titanium ? phase is, as viewed from the side of the slab to be hot rolled, in the range of 35 to 90° from the normal direction of the surface to be hot rolled.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: August 1, 2017
    Assignees: NIPPON STEEL & SUMITOMO METAL CORPORATION, TOHO TITANIUM CO., LTD.
    Inventors: Kazuhiro Takahashi, Tomonori Kunieda, Kenichi Mori, Hiroaki Otsuka, Hideki Fujii, Yoshihiro Fujii, Yoshimasa Miyazaki, Takashi Oda, Hisamune Tanaka, Osamu Tada
  • Patent number: 9505648
    Abstract: Mold assemblies for forming shaped glass articles are disclosed herein. According to one embodiment, a mold assembly may include a mold body including a mold cavity, a support base, and a plenum body extending between the mold body and the support base. When the mold assembly is heated to an average temperature of greater than or equal to about 650° C. by an overhead heating source, the temperature at the center of the mold cavity may be less than at the perimeter of the mold cavity. The difference between the temperature at the center of the mold cavity and the temperature at the perimeter of the mold cavity may be at least about 12° C.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: November 29, 2016
    Assignee: CORNING INCORPORATED
    Inventors: Bushra Afzal, Keith Raymond Gaylo, Elias Panides
  • Publication number: 20150047801
    Abstract: A mold (2) has a cooling means (21) for having the thermal flux at four corner sections (2a) be smaller than the thermal flux at four face sections (2b). The cooling means (21) has first channels (22a) which are each embedded in the four corner sections (2a) respectively and which channel cooling water, and second channels (22b) which are each embedded in the four face sections (2b) respectively and which channel cooling water. The distance from the inner peripheral surface of the mold (2) to the first channels (22a) is greater than the distance from the inner peripheral surface of the mold (2) to the second channels (22b).
    Type: Application
    Filed: April 2, 2013
    Publication date: February 19, 2015
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Eisuke Kurosawa, Takehiro Nakaoka, Kazuyuki Tsutsumi, Hideto Oyama, Hidetaka Kanahashi, Hitoshi Ishida, Daiki Takahashi, Daisuke Matsuwaka
  • Patent number: 8911571
    Abstract: This invention discloses an L,R,C method and equipment for casting amorphous, ultracrystallite and crystallite metal slabs or other shaped metals. A workroom (8) with a constant temperature of tb=?190° C. and a constant pressure of pb=1 bar, and liquid nitrogen of ?190° C. and 1.877 bar is used as a cold source for cooling the casting blank. A liquid nitrogen ejector (5) ejects said liquid nitrogen to the surface of ferrous or non-ferrous metallic slabs or other shaped metals (7) with various ejection quantity v and various jet velocity k. Ejected liquid nitrogen comes into contact with the casting blank at cross section c shown in FIG. 2. This method adopts ultra thin film ejection technology, with a constant thickness of said film at 2 mm and ejection speed Kmax of said liquid nitrogen at 30 m/s.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: December 16, 2014
    Inventor: Zhuwen Ming
  • Patent number: 8899305
    Abstract: Crystallizer for continuous casting, having a monolithic structure defined by lateral walls in the thickness of which channels (11) are made in which a cooling liquid flows. The channels (11) are geometrically sized so as to define, in a zone substantially astride the meniscus (M), an increased transit speed of the cooling liquid, wherein by increased speed it is intended that in at least some of the cooling channels (11) the speed of transit of the cooling liquid is greater in the zone astride the meniscus (M) compared with a zone below or above said zone astride the meniscus (M).
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: December 2, 2014
    Assignee: Danieli & C. Officine Meccaniche SpA
    Inventors: Marco Ansoldi, Gianluca Bazzaro, Andrea De Luca
  • Patent number: 8863819
    Abstract: A continuous casting device including at least a crystallizer suitable for casting a metal product, and a plurality of guide and containing segments with rolls, the function of which is to accompany the cast product exiting from the crystallizer. The device includes, an extension of or in an intermediate position to one or more of the guide and containing segments with rolls, one or more guide and containing segments of the mixed type with panels and rolls, each including one or more guide rolls disposed on at least one side of the product and insulated and/or reflecting and/or heated panels disposed on the opposite side of the product, so as to reduce the loss of temperature of the cast product in transit.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: October 21, 2014
    Assignee: Danieli & C. Officine Meccaniche SpA
    Inventors: Gianpietro Benedetti, Andrea Carboni, Paolo Bobig
  • Patent number: 8844897
    Abstract: Devices may be in contact with molten metals such as copper, for example. The devices may include, but are not limited to, a die used for producing articles made from the molten metal, a sensor for determining an amount of a dissolved gas in the molten metal, or an ultrasonic device for reducing gas content (e.g., hydrogen) in the molten metal. Niobium may be used as a protective barrier for the devices when they are exposed to the molten metals.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: September 30, 2014
    Assignee: Southwire Company, LLC
    Inventors: Victor F. Rundquist, Kevin S. Gill
  • Publication number: 20140048226
    Abstract: An apparatus for direct casting of strip from a pool of molten metal includes a tundish having a feed chamber, a return chamber and a diverting chamber. A lip insert is inserted into the tundish and has an open front for cooperation with a casting surface. The apparatus includes means for controlling the surface level of the pool of molten metal in the diverting chamber and in the lip insert, and means for moving the casting surface upwardly through the pool of molten metal for the casting of metal on the casting surface. The casting surface is an aluminum surface of a cylindrical drum and has a coarse irregular surface formed thereon by biasing with crushed, angular silicon carbide or aluminum silicate.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 20, 2014
    Applicant: MITEK HOLDINGS, INC.
    Inventors: Jeffrey A. Rossi, Theodore J. Seymour
  • Patent number: 8631854
    Abstract: With a continuous casting method for producing preliminary profiles, in particular double T preliminary profiles, the downwardly flowing cooling water is pushed out of the internal curve of the preliminary profile strand (3) via the profile flanges and discharged using water nozzles (21, 22) aligned substantially to the crossover from the bar (4) to the respective flange (5, 6) by means of the diverting water delivered via the water nozzles (21, 22). In this way the excessive cooling caused by downwardly running cooling water is largely avoided in the internal curve of the preliminary profile strand.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: January 21, 2014
    Assignee: SMS Concast AG
    Inventors: Christian Dratva, Klaus Von Eynatten
  • Publication number: 20130327492
    Abstract: Crystallizer for continuous casting, having a monolithic tubular structure defined by lateral walls (12) in the thickness of which channels (11) are made in which a cooling liquid flows, wherein two adjacent lateral walls (12) define a corner or s edge zone. On at least one longitudinal portion (C) of at least one of the lateral walls (12) and/or of at least one of the corner zones, defining a zone in correspondence with which, during use, the meniscus of the liquid metal is located, a reduction in thickness (13) is made, starting from the external surface, determining a cross section with a reduced area with respect to the remaining longitudinal portions of the monolithic tubular structure.
    Type: Application
    Filed: November 24, 2011
    Publication date: December 12, 2013
    Applicant: DANIELI & C. OFFICINE MECCANICHE SPA
    Inventors: Marco Ansoldi, Gianluca Bazzaro, Andrea De Luca
  • Publication number: 20130319629
    Abstract: Crystallizer for continuous casting, having a monolithic structure defined by lateral walls in the thickness of which channels (11) are made in which a cooling liquid flows. The channels (11) are geometrically sized so as to define, in a zone substantially astride the meniscus (M), an increased transit speed of the cooling liquid, wherein by increased speed it is intended that in at least some of the cooling channels (11) the speed of transit of the cooling liquid is greater in the zone astride the meniscus (M) compared with a zone below or above said zone astride the meniscus (M).
    Type: Application
    Filed: November 24, 2011
    Publication date: December 5, 2013
    Applicant: DANIELI & C. OFFICINE MECCANICHE SPA
    Inventors: Marco Ansoldi, Gianluca Bazzarp, Andrea De Luca
  • Publication number: 20130248137
    Abstract: Embodiments of the invention relate to a method and apparatus for continuously casting a metal slab. The method involves continuously introducing molten metal into an inlet of a casting cavity defined between advancing casting surfaces, cooling the metal in the cavity to form a metal slab, and discharging the slab from the cavity through an outlet. The casting surfaces have an ability to remove heat from the metal but this ability is reduced, thus reducing heat flux, for at least one of the casting surfaces in a region of the cavity spaced from both the inlet and the outlet and extending transversely to the casting direction. This reduced ability to remove heat is relative to such ability of the casting surface in immediately adjacent upstream and downstream regions of the cavity. The apparatus may be a twin belt caster or other form of continuous caster modified to perform the method.
    Type: Application
    Filed: February 12, 2013
    Publication date: September 26, 2013
    Inventors: Kevin Michael GATENBY, Edwin Stanley Luce
  • Patent number: 8517248
    Abstract: A method of providing a mould with a conformal cooling passage includes rough machining a mould cavity generally corresponding to a moulded part shape using CAD data. Conformal cooling slots are cut in the mould cavity using the CAD data. The conformal cooling slots are welded shut using the CAD data to provide conformal cooling passages. A class A surface is machined over the conformal cooling passage and corresponds to a finished mould part shape using the CAD data.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: August 27, 2013
    Inventor: Pascal Zaffino
  • Patent number: 8505611
    Abstract: In a twin roll continuous caster, the contour of the strip cast is controlled during casting by regulating the temperature of temperature-regulating medium circulated through temperature-regulating passages in the casting rolls spaced inward of cooling passages in the circumferential portion adjacent the casting surfaces. The temperature-regulating passages may be positioned in the circumferential portion or in the inner portion of the casting rolls, or both.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: August 13, 2013
    Assignee: Castrip, LLC
    Inventor: Hiroyuki Otsuka
  • Patent number: 8418746
    Abstract: This invention discloses an L,R,C method and equipment for casting amorphous, ultracrystallite and crystallite metal slabs or other shaped metals. A workroom (8) with a constant temperature of tb=?190° C. and a constant pressure of pb=1 bar, and liquid nitrogen of ?190° C. and 1.877 bar is used as a cold source for cooling the casting blank. A liquid nitrogen ejector (5) ejects said liquid nitrogen to the surface of ferrous or non-ferrous metallic slabs or other shaped metals (7) with various ejection quantity v and various jet velocity k. Ejected liquid nitrogen comes into contact with the casting blank at cross section c shown in FIG. 2. This method adopts ultra thin film ejection technology, with a constant thickness of said film at 2 mm and ejection speed Kmax of said liquid nitrogen at 30 m/s.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: April 16, 2013
    Inventor: Zhuwen Ming
  • Patent number: 8387682
    Abstract: In a twin roll continuous caster, the contour of the strip cast is controlled during casting by regulating the temperature of temperature-regulating medium circulated through temperature-regulating passages in the casting rolls spaced inward of cooling passages in the circumferential portion adjacent the casting surfaces. The temperature-regulating passages may be positioned in the circumferential portion or in the inner portion of the casting rolls, or both.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: March 5, 2013
    Assignee: Castrip, LLC
    Inventor: Hiroyuki Otsuka
  • Patent number: 8360134
    Abstract: A method and system for eliminating near-surface porosity and surface tear defects in metal castings. The system includes a complex casting mold having at least one core pin or other regions susceptible to new surface porosity and surface tears. The system further includes a copper rod fused internally to the core pin to extract heat from a molten metal introduced in the mold. The copper rod extracts heat at a low thermal flux, preventing near surface porosity and surface tears. Moreover, the copper rod extracts heat from the hotter regions of the casting causing it to solidify at a rate comparable to the rate of solidification of other portions of the casting, thereby allowing uniform solidification of the casting.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: January 29, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Philip M. Durham, Bradley D. Guthrie
  • Patent number: 8240357
    Abstract: A continuous casting mold includes mold plates which enclose the casting cross section and in which cooling channels extend. The mold plates are connectable to a water box by screw elements which are formed by fastening bolts having a threaded shank which is screwable into fastening threads located in the mold plate. To achieve a uniform cooling in a continuous casting mold, the fastening threads are arranged such that their center longitudinal axes extend between two adjacent coolant channels of the plurality of cooling channels. The diameter of each threaded bore hole of the fastening threads is greater than the distance between the two adjacent cooling channels, and each bore hole of the fastening threads ends at a distance from the floor of the plurality of cooling channels to define the screw-in depth of the fastening bolts.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: August 14, 2012
    Assignee: SMS Siemag AG
    Inventors: Markus Reifferscheid, Albrecht Girgensohn
  • Publication number: 20120186772
    Abstract: A thermal management system for use in continuous casting mold for controlling and managing the thermal characteristics of the mold above the direct chill zone, more particularly controlling the thermal characteristics in the corner portions of the castpart compared to other portions of the castpart.
    Type: Application
    Filed: January 25, 2011
    Publication date: July 26, 2012
    Inventors: Craig Shaber, Brett Thielman, Mike Anderson
  • Publication number: 20120186773
    Abstract: A coolant or wiper control system for use in continuous casting mold for controlling and managing the coolants interaction with the castpart during casting. In some aspects of the process, the wiper framework is started sufficiently away from the bottom block so as not to interfere or cause/allow coolant to get into the bottom block; is then rapidly moved back to the emerging castpart during transient heat-up; and then moved away from the mold with the solidified castpart at a controlled rate to a predetermined steady state position or to a second transitory state of the casting.
    Type: Application
    Filed: January 25, 2011
    Publication date: July 26, 2012
    Inventor: Craig Shaber
  • Patent number: 8176970
    Abstract: There is provided a twin-belt casting machine which prevents an uneven cooling condition between the top surface and the bottom surface of a slab between a pair of endless belts disposed vertically. The twin-belt casting machine 1 comprises a pair of rotating belt units 3 including respective endless belts 2 and arranged up and down so as to face each other, a cavity 4 formed between the pair of rotating belt units 3, and cooling means 10 which is arranged inside the rotating belt unit 3. The twin-belt casting machine 1 continuously casts a slab S as a metal liquid is supplied in the cavity 4. The twin-belt casting machine 1 further comprises distance adjusting means which is arranged inside at least one of the pair of rotating belt units arranged up and down so as to face each other, and which moves apart or closer the endless belt relative to the slab S in accordance with a part where the slab and the endless belt become distant from each other.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: May 15, 2012
    Assignee: Nippon Light Metal Company, Ltd.
    Inventors: Toshiaki Ito, Noboru Kubota, Kazumi Touno
  • Publication number: 20120111527
    Abstract: A method for continuous casting from molten metal, where metal flows vertically downward from a mold and the metal strip is then guided vertically downward along a vertical strand guide, cooling as it moves. The strip is then deflected from the vertical direction to the horizontal direction. In the terminal area of the deflection of the strip into the horizontal direction or after the deflection into the horizontal direction, a mechanical deformation of the strip is carried out. The strip is cooled at a heat-transfer coefficient of 3,000 to 10,000 W/(m2 K) in a first section downstream of the mold and upstream of the mechanical deformation of the strip. In a second section, downstream of the cooling, the surface of the strip is heated to a temperature above Ac3 or Ar3 by heat equalization in the strip, after which the mechanical deformation is carried out in a third section.
    Type: Application
    Filed: January 19, 2012
    Publication date: May 10, 2012
    Applicant: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventors: Uwe PLOCIENNIK, Jens KEMPKEN, Peter JONEN, Ingo SCHUSTER, Tilmann Böcher
  • Patent number: 8171983
    Abstract: A mold for the continuous casting of blooms, slabs or billets is provided with a mold tube (2) and a supporting shell (4) surrounding said mold tube. The mold tube (2) is supported by support profiles (15) on the supporting shell (4) extending in its longitudinal direction and distributed over the periphery and is positively connected thereto via connecting profiles (20) extending in the longitudinal direction. The connecting profiles (20) are respectively configured as profile strips (21, 22) outwardly projecting from the outer periphery of the mold tube (2) and inwardly projecting from the inner periphery of the supporting shell (4), which engage in one another such that in the peripheral direction of the mold a clearance is present. As a result, the stresses, permanent deformation and fatigue cracks produced by the thermal expansion in the mold tube are substantially avoided.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: May 8, 2012
    Assignee: SMS Concast AG
    Inventors: Franz Kawa, Adalbert Roehrig
  • Publication number: 20120080159
    Abstract: A continuous-casting mold has an inner mold tube having a plurality of side walls formed with coolant passages and a plurality of profiles extending longitudinally on each of the side walls and each formed with a respective plurality of longitudinally spaced undercut grooves. An outer jacket surrounds the mold tube. Respective connectors each have a base generally complementarily fitting in a respective one of the grooves and a tubular and internally threaded body projecting outward from the respective base. Respective screws engage from outside through the jacket into the bodies.
    Type: Application
    Filed: September 27, 2011
    Publication date: April 5, 2012
    Inventors: Egon EVERTZ, Ralf Evertz, Stefan Evertz, Hendrik Zschaber, Joerg Biechl
  • Patent number: 8074703
    Abstract: Oscillating table for blooms or billets production plants, comprising pairs of bars, lying on at least one horizontal plane, which constitute the elastic support elements of the mold, thus permitting an optimal guidance of the oscillation thereof exclusively in the casting direction, said pairs of bars constituting a tie rod-strut system working in bending that confers to the table very high torsional and lateral stiffness. It allows a high precision in guiding mold thus consenting it wide oscillations in the axial casting direction only.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: December 13, 2011
    Assignee: Danieli & C. Officine Meccaniche S.p.A.
    Inventors: Alfredo Poloni, Andrea De Luca, Marco Ansoldi
  • Patent number: 8074704
    Abstract: Methods and associated apparatus for semi-continuous casting of hollow ingots are described. In one embodiment a method for the semi-continuous casting of a metallic hollow ingot is provided. The method includes providing a mold that includes a mold center having an inner pipe and an outer pipe arranged to form an annular space for a cooling media and an outer mold, circulating a cooling media in the annular space, feeding a source material to the mold, heating the source material to produce a molten material, moving the mold center progressively downward relative to the outer mold, and solidifying the molten material to form a hollow ingot. Embodiments relating to an apparatus for semi-continuous casting of hollow ingots, and products resulting from the semi-continuous casting of hollow ingots are also described.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: December 13, 2011
    Assignee: Titanium Metals Corporation
    Inventors: Alan Blackburn, Richard Roth, Andrew Purse, David May
  • Patent number: 8056610
    Abstract: A secondary cooling apparatus capable of gradually cooling cast thin pieces and a cast apparatus that uses it are provided. A comb tooth-shaped device is arranged inside a vessel of the secondary cooling apparatus; the cast thin pieces are piled on the comb tooth-shaped device; and crushed small pieces are placed thereon. After the cast thin pieces and the crushed small pieces are gradually cooled, the cast thin pieces are crushed by a pressing device. The crushed small pieces are rapidly cooled by being in contact with a surface of a bottom wall and side faces of cooling teeth. Nd-rich phases or R-rich phases can be annealed by the gradual cooling, and after the crushed small pieces are rapidly cooled to its oxidation temperature or below, the crushed small pieces can be taken out to the air atmosphere.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: November 15, 2011
    Assignee: Ulvac, Inc.
    Inventors: Youichi Hirose, Hiroshi Nagata
  • Patent number: 8051893
    Abstract: A liquid-cooled permanent chill mold for the continuous casting of metals, including a permanent chill mold plate (2) made of copper or a copper alloy and an adapter plate (3), on which the permanent chill mold plates (2) are fastened via fastening bolts (12). The permanent chill mold plates (3) are coupled to the adapter plates (3) via sheet metal holders (19) situated in their top regions and base regions (20, 21), in addition to via the fastening bolts (12).
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: November 8, 2011
    Assignee: KME Germany AG & Co. KG
    Inventors: Hans-Günter Wobker, Gerhard Hugenschütt, Thomas Rolf
  • Patent number: 7980292
    Abstract: Provided is a crystalliser holding device for billets, blooms and slabs production plants that has a high constructive simplicity, a significantly reduced overall weight and that reduces substantially to zero the need for maintenance. The crystalliser holding device of the invention, in addition to efficaciously guaranteeing the transfer toward the exterior of the heat of the liquid steel introduced into the tubular crystalliser contained therein, also provides a separate circuit for cooling the continuous ingot exiting the crystalliser and the rollers at the foot. It also permits an easy and rapid replacement in the oscillating table in which it is housed.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: July 19, 2011
    Assignee: Danieli & C. Officine Meccaniche, S.p.A.
    Inventors: Alfredo Poloni, Andrea De Luca, Marco Ansoldi
  • Patent number: 7958930
    Abstract: The invention relates to a wall (100) of a casting die for casting a molten metal. Die walls comprising a front plate (110) with a pocket borehole (112) and a rear plate (120) with a transversal borehole (122) aligned with the pocket borehole, on the cold side of the die front plate, are known in prior art. The aim of the invention is prevent the entrance of cooling liquid from the transition region (115), between the front plate (110) and the rear plate (120), into the pocket borehole (112) or the transversal borehole (122). To this end, a sealing element (140) having a longitudinal borehole is arranged in the transition region (115) in such a way that the longitudinal borehole of the sealing element is at least approximately aligned with the transversal borehole (122) in the rear plate of the die and the pocket borehole (112) in the front plate of the die.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: June 14, 2011
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Gereon Fehlemann, Albrecht Girgensohn, Jörn Hoffmeister
  • Patent number: 7891405
    Abstract: A water-cooled mold for continuous casting includes two water-cooled wide copper plates arranged opposite to each other in a front and back direction and two water-cooled narrow copper plates arranged opposite to each other in a left and right direction. The upper portion of the cavity of the mold is a sprue area and the lower portion of the cavity is a mold cavity area. The sprue area is gradually narrowed in the casting direction and smoothly transited into the mold cavity, corresponding to the shape of a slab to be cast. The inside surfaces of the water-cooled narrow copper plates are smooth planar surfaces. A portion of the inside surface of the water-cooled wide copper plates in the sprue area is a curved surface and another portion in the mold cavity area is a planar surface. The curved surface and the planar surface portions form a continuous smooth surface.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: February 22, 2011
    Assignee: Baoshan Iron and Steel Co., Ltd.
    Inventors: Rongjun Xu, Xiao Liu, Yongquan Li, Jian Cui
  • Publication number: 20100276110
    Abstract: A continuous casting plant in particular for long steel products is provided with a mould (1), from which a cast strand (2) is continuously cast. The cast strand (2) is guided along a, in particular curved, guideway formed by guide rollers (11, 12, 13, 14) arranged one after the other, and at the same time in a cooling chamber having spray members. The guide rollers (12, 13, 14) and/or the spray members are contained in a plurality of centring modules (10) or spray modules (3) arranged one after the other and are adjustable in a controlled manner substantially concentrically with respect to the desired axis of the cast strand. As a result, on the one hand, the risk of thermally overloading the rollers and damaging the strand surface is considerably reduced and symmetrical cooling is ensured.
    Type: Application
    Filed: January 14, 2008
    Publication date: November 4, 2010
    Applicant: SMS CONCAST AG
    Inventors: Franz Kawa, Christian Dratva
  • Publication number: 20100270000
    Abstract: With a continuous casting method for producing preliminary profiles, in particular double T preliminary profiles, the downwardly flowing cooling water is pushed out of the internal curve of the preliminary profile strand (3) via the profile flanges and discharged using water nozzles (21, 22) aligned substantially to the crossover from the bar (4) to the respective flange (5, 6) by means of the diverting water delivered via the water nozzles (21, 22). In this way the excessive cooling caused by downwardly running cooling water is largely avoided in the internal curve of the preliminary profile strand.
    Type: Application
    Filed: March 5, 2010
    Publication date: October 28, 2010
    Applicant: SMS CONCAST AG
    Inventors: Christian DRATVA, Klaus Von Eynatten
  • Patent number: 7798202
    Abstract: A broadside (100) for the broadside of a funnel mold for the casting of metal. Known broadsides of this kind have at least one groove-shaped cooling channel (110) in the backside (R) of the broadside. Adjacent the cooling channel (110) on the backside of the broadside, recesses (A1, . . . , A5) are provided as well as filler elements (140-1, . . . , -5) for the at least partial sealing of the recesses. In order to constructively simplify the broadside in view of the adjustment of a generally constant flow rate of a cooling medium through the cooling channel, it is proposed to design the recesses (A1, . . . , A5) in such a way, that they cross the cooling channel (110) diagonally to its longitudinal direction. Moreover, the recesses (A1, . . .
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: September 21, 2010
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Hans Streubel, Jörn Hoffmeister, Markus Reifferscheid, Gereon Fehlemann, Thomas Lamberti
  • Publication number: 20100065242
    Abstract: In a continuous casting chill (1) with a coolant duct (2), which is formed by a chill inner wall (3), facing the molten metal, as the hot side, a chill outer wall (4) as the cold side and a right side wall (5) and a left side wall (6), the coolant duct (2) is constructed with turbulence-generating elements (7, 9, 10).
    Type: Application
    Filed: December 11, 2007
    Publication date: March 18, 2010
    Inventors: Hans-Jürgen Odenthal, Norbert Vogl
  • Publication number: 20100059195
    Abstract: A continuous casting mold includes mold plates which enclose the casting cross section and in which cooling channels extend. The mold plates are connectable to a water box by screw elements which are formed by fastening bolts having a threaded shank which is screwable into fastening threads located in the mold plate. To achieve a uniform cooling in a continuous casting mold, the fastening threads are arranged such that their center longitudinal axes extend between two adjacent coolant channels of the plurality of cooling channels. The diameter of each threaded bore hole of the fastening threads is greater than the distance between the two adjacent cooling channels, and each bore hole of the fastening threads ends at a distance from the floor of the plurality of cooling channels to define the screw-in depth of the fastening bolts.
    Type: Application
    Filed: October 18, 2007
    Publication date: March 11, 2010
    Applicant: SMS Schloemann-Strasse 4
    Inventors: Markus Reifferscheid, Albrecht Girgensohn
  • Patent number: 7658221
    Abstract: A permanent chill mold for the continuous casting of metals, comprising a mold tube (1) placed in a water box, a water gap being formed between the inner side of the wall of the water box and the outer side (2) of the mold tube (1). In the water gap, at least one sheet metal water deflector (3) is situated, the mold tube (1) being supported at least in one direction to be laterally freely shiftable with respect to the water box and the working position of the mold tube (1) being adjusted by the flow relationships in the water gap.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: February 9, 2010
    Assignee: KM Europa Metal Aktiengesellschaft
    Inventors: Hans-Günter Wobker, Gerhard Hugenschütt
  • Publication number: 20100000704
    Abstract: An extrusion die (1) for the casting of liquid metals, in particular of liquid steel materials, has a heat flow density which is distributed non-homogenously over the die face. A homogenizing of the heat flow density can be obtained if the spacing between the hot side and the cooling duct base (=thickness (6) of the die wide side plate (2)) in the new state as a typical normal thickness (100%) is reduced by at least 20% to 80%, and a further reduction, obtained by means of reworking processes, of the thickness (6) which is initially reduced to 80% is restricted to 5 mm a final thickness (6a) by means of a final reworking process.
    Type: Application
    Filed: July 31, 2007
    Publication date: January 7, 2010
    Inventors: Hans Streubel, Gereon Fehlemann
  • Publication number: 20090314460
    Abstract: The invention relates to a process and a device for strip casting using a travelling mould which is cooled by a liquid coolant. The invention is characterised in that the coolant is liquid metal or ionic liquid. Preferably, the coolant flows with turbulent flow through the cooling device attributed to the travelling mould.
    Type: Application
    Filed: April 11, 2007
    Publication date: December 24, 2009
    Applicant: SO & SO Sommerhofer OEG
    Inventors: Hubert Sommerhofer, Peter Sommerhofer
  • Publication number: 20090199993
    Abstract: The invention relates to a cooled continuous casting mold (1) for casting metal, especially steel, which has a casting format (GF) that is defined by respective two opposite broad faces (2, 3) and small faces (4, 5). The broad faces (2, 3) have a cooling area (6) which designed for the maximum casting width and comprises a plurality of cooling channels (7) extending in the direction of casting and being connected to a coolant circuit. The small faces (4, 5) can be adjusted to a predetermined casting format having a corresponding casting width. The aim of the invention is to provide a continuous casting mold for slab formats, especially thin slabs, which allows to adjust an even working end temperature of the broad sides and especially to reduce a considerable temperature drop in the neighborhood of the small faces while at the same time allowing to adjust different casting formats, especially smaller casting formats as compared to the maximum casting format.
    Type: Application
    Filed: April 25, 2005
    Publication date: August 13, 2009
    Applicant: SMS DEMAG AG
    Inventors: Hans Streubel, Jim Sears
  • Patent number: 7467656
    Abstract: A liquid-cooled permanent mold for the continuous casting of metals, comprising mold plates (1) made of copper or a copper alloy, which are connected respectively to an adapter plate or a water-cooling tank by clamping bolts, the clamping bolts being fastened to plateau pedestals (3) that protrude in an insular fashion from the coolant side (2), which at least partially extend into a coolant gap formed between the mold plate (1) and the adapter plate or the cooling-water tank, and have a streamlined form adjusted to the flow direction of the coolant. The coolant side (2) has cooling ribs (4, 5, 6, 7) that extend into the coolant gap and are situated from place to place between two adjacent plateau pedestals (3).
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: December 23, 2008
    Assignee: KME Germany AG & Co. KG
    Inventors: Hans-Günter Wobker, Gerhard Hugenschütt, Thomas Rolf
  • Publication number: 20080283213
    Abstract: The invention provides a water-cooled mold for continuous casting. The mold comprises two water-cooled wide copper plates which are arranged opposite to each other in front and back direction and two water-cooled narrow copper plates which are arranged opposite to each other in left and right direction. The upper portion of the cavity of the mold is a sprue area and the lower portion of the cavity is a mold cavity area. The sprue area is gradually narrowed in the casting direction and smoothly transited into the mold cavity, corresponding to the shape of a slab to be cast. The inside surfaces of the water-cooled narrow copper plates are smooth planar surface. A portion of the inside surface of the water-cooled wide copper plates in the sprue area is a curved surface and a portion of the same in the mold cavity area is a planar surface. The curved surface portion and the planar surface portion form a continuous smooth surface.
    Type: Application
    Filed: September 20, 2004
    Publication date: November 20, 2008
    Inventors: Rongjun Xu, Xiao Liu, Yongquan Li, Jian Cui
  • Patent number: 7445036
    Abstract: A liquid-cooled permanent mold for a continuous casting installation having a shaping permanent mold body, for example, made of copper or copper alloy. Cooling channels are provided in permanent mold body that extend from its upper side to its lower side. The cooling channels each have two longitudinal sections and the cooling sections have an alignment of their longitudinal axes that differ from one another. In this way, the horizontal distance of the cooling channels from the casting surface is varied and a cooling performance is achieved that is adjusted to the weighting profile of the permanent mold.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: November 4, 2008
    Assignee: KM Europa Metal AG
    Inventors: Dietmar Kolbeck, Hans-Günter Wobker, Gerhard Hugenschütt
  • Patent number: 7422049
    Abstract: In the continuous casting of round or polygonal billet and bloom formats, use is made of moulds the mould cavity of which comprises a copper tube (3) which is intensively cooled by means of water-circulation cooling. In order to increase the cooling capacity on the one hand and the dimensional stability of the mould cavity (4) on the other hand, and also extend the total service life of the copper tube (3), it is proposed to provide the copper tube (3) with a supporting shell (12) or supporting plates over the entire circumference at the tube outer lateral surface (5). For the cooling of the copper tube (3), cooling ducts (6) for guiding the cooling water are arranged on the copper tube (3) or on the supporting shell (12). The cooling ducts (6) are distributed over the entire circumference at the tube outer lateral surface (5) and extend substantially over the entire mould length.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: September 9, 2008
    Assignee: Concast AG
    Inventors: Adalbert Roehrig, Franz Kawa
  • Patent number: 7363958
    Abstract: The invention relates to a continuous casting mould for liquid metals, especially for liquid steel, comprising steel charging plates (2) which are surrounded by water reservoirs (1), cassette-type copper plates (3) arranged against the same, end plates (7), if needed, for the thickness and/or the width of the cast billet, and coolant channels (9). The aim of the invention is to take measures to counteract the high temperatures in the meniscus region (13) using appropriate embodiments of the copper plates (3) and/or the steel charging plates (2). To this end, the thickness (10) of the copper plates (3) between the coolant (11) and the hot side (3a) of the copper plates varies along the width (2×L) and/or in terms of the height (12).
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: April 29, 2008
    Assignee: SMS Demag AG
    Inventors: Gereon Fehlemann, Hans Streubel
  • Patent number: 7290587
    Abstract: A system and method for thermal management of a die is disclosed wherein cooling of the die is controlled by controlling coolant flow to switch between laminar flow and turbulent flow as desired.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: November 6, 2007
    Assignee: General Motors Corporation
    Inventor: Gary C. Ward
  • Patent number: 7234508
    Abstract: A mould for continuously casting metal strips comprises a pair of side walls (11) on opposite sides of an open-ended mould cavity (C) having an entrance end (E) for continuously receiving molten metal and an exit end (D) for continuously discharging a moving solidified strip (D) formed from the molten metal. Each mould side wall (11) includes a graphite block (13) formed of a stack of a multiplicity of elongate graphite laminae (16) having opposite faces (16A) and inner edges (16B), said inner edges (16B) jointly forming a surface (16A) directed toward the mould cavity (C). The mould further comprises a cooling system associated with each graphite block (13) and including coolant tubes (15) extending through the stack transversely to said opposite faces (16A) of the graphite laminae (16) forming the stack.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: June 26, 2007
    Assignee: Luvata Oy
    Inventors: Angela Vestman, legal representative, Susanne Karlsson, legal representative, Sture Östlund, Bertil Vestman, deceased
  • Patent number: 7198092
    Abstract: A chill tube (1) having a double T-shaped inner and outer cross section in beam blank format is encased in a water-guiding jacket (12) adapted to its outer contour while forming a water gap (14). The wall thickness (D) of chill tube (1) in the rounded transition regions (2) from middle crosspieces (4), which face each other head to head and are drawn in towards longitudinal axis (3), to the neighboring crosswise positioned flanges (5) is dimensioned at least partially smaller than in the remaining wall sections (6, 7). The reduction in wall thickness is implemented by longitudinal hollow recesses (8). These recesses (8) extend only in the height range of the bath level. Into the cross sectional regions which are formed by the outer contour of chill tube (1) as well as the inner contour of water-guiding jacket (12), filler pieces (17) are incorporated, adapted to this cross section.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: April 3, 2007
    Assignee: KM Europa Metal Aktiengesellschaft
    Inventors: Roland Hauri, Raimund Eichholz-Boldt, Dietmar Kolbeck, Gerhard Hugenschütt
  • Patent number: 7147033
    Abstract: A twin-drum continuous casting apparatus for casting a metal sheet (4) by supplying molten metal (3) to a pouring basin formed by a pair of cooling drums (1) rotating in opposite directions, and side gates (2), to cool the molten metal (3) by contact with surfaces of the cooling drums (1), thereby forming a solidified shell. The cooling drum (1) is formed from a drum body (11) having shaft portions at opposite end portions, and a drum sleeve (10) fitted on an outer peripheral portion of the drum body (11). Also, means is provided for preventing various adverse influences due to differences in thermal expansion of constituent members of the drum body (11) during casting. Thus, the reliability of the apparatus is increased, and the quality of casting is improved.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: December 12, 2006
    Assignees: Mitsubishi Heavy Industries, Ltd., Nippon Steel Corporation
    Inventors: Keiichi Yamamoto, Ritsuo Hashimoto, Mitsuo Tani, Kazutoshi Yokoo, Jyoji Yusa, Kunimasa Sasaki, Katsuyoshi Miyake, Katsuyuki Isogami, Mamoru Yamada, Tsuyoshi Tanaka, Takashi Arai, Tadahiro Izu, Keiji Tsunenari, Kazuto Yamamura, Hiroshi Izaki