With Coating Means Patents (Class 164/267)
  • Patent number: 10682691
    Abstract: Shot sleeves for high temperature die casting include a low modulus single crystal nickel-based alloy having less than 1 ppm sulfur, a low modulus single crystal nickel-based alloy doped with a sulfur active element, a low modulus single crystal nickel-based alloy having a protective oxide coating, or a combination of two or more of the foregoing.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: June 16, 2020
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: John Joseph Marcin, Dilip M. Shah
  • Patent number: 10016809
    Abstract: A mold and cavity are coupled to a vacuum tank via a pressure reducing path. A first back-cleaning filter 4a is disposed between the cavity and the vacuum tank in the pressure reducing path. The vacuum tank and the second dry pump are series-connected via a mechanical booster pump. The vacuum tank is sucked by the mechanical booster pump and the second dry pump, thereby always maintaining a predetermined vacuum degree in the vacuum tank. When carrying out die casting, first, after the mold is closed, a release agent is applied on an inner peripheral surface of the mold. Next, while reducing a pressure in the cavity using the vacuum tank, a molten metal is injected to the cavity. When the molten metal is solidified, the mold is opened and a cast product is taken out from the mold.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: July 10, 2018
    Assignee: DENSO CORPORATION
    Inventor: Takuma Saida
  • Patent number: 9492955
    Abstract: The present invention relates to a method for molding a highly heat-resistant sound absorbing and insulating material, which uses a sound absorbing material containing 20-80 parts by weight of a fiber material having a limiting oxygen index (LOI) of 25% or greater and a heat resistance temperature of 200° C. or greater and 20-80 parts by weight of a thermosetting binder resin having a heat resistance temperature of 200° C. or greater and is installed on an engine cylinder block and an automotive body panel above a muffler of a vehicle. More specifically, the method includes a releasing agent coating step of coating a releasing agent inside a hot die, a hot compression molding step of fixing a shape, and a cold compression step of stabilizing the shape.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: November 15, 2016
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Keun Young Kim, Won Jin Seo, Jong Beom Seo, Chi Man Cho, Ki Dong Lee, Su Nam Lee
  • Patent number: 9156080
    Abstract: A casting die applied with laser machining and carbon-film coating on a die surface is provided with multiple grooves formed spaced at a predetermined pitch by the laser machining; multiple ridges between the multiple grooves; and multiple carbon portions buried in the multiple grooves by the carbon-film coating, wherein the die surface with the ridge and the carbon portion alternately disposed is configured such that molten metal flows thereon; the grooves are 45 ?m or less in opening width and 60 ?m or more in depth; and the ridge has, on a top surface thereof applied with the laser machining, multiple micro-grooves for reducing a contact area with the molten metal. The casting die is aimed to balance expanding the groove width and increasing a thickness of the carbon film and to achieve suppression of the molten metal entering into the groove and exfoliation of the carbon film.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: October 13, 2015
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kenji Yuki, Takefumi Yokoyama
  • Patent number: 8387679
    Abstract: A reduced size vacuum die-casting machine wherein an amount of powder release agent which is fed to a mold cavity each time is stable and loss of velocity of the air flow for sucking out the powder release agent is difficult, the apparatus provided with a powder control valve which has a powder release agent passage through which a powder release agent passes and which moves back and forth inside of a sleeve to switch between a state communicating a discharge hole with a molten metal holding chamber and a state communicating a discharge hole with a powder release agent passage, the powder release agent passage of the powder control valve formed inside of the powder control valve, the inlet and outlet of the powder release agent passage being formed at the outer surface of the powder control valve.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: March 5, 2013
    Assignee: Denso Corporation
    Inventors: Kyohei Inaba, Kenji Yamazaki, Minoru Yamamoto, Akihito Mizuno
  • Publication number: 20130000447
    Abstract: A system for making a material having domains with insulated boundaries is provided. The system includes a droplet spray subsystem configured to create molten alloy droplets and direct the molten alloy droplets to a surface, a gas subsystem configured to introduce one or more reactive gases to an area proximate in-flight droplets. The one or more reactive gases creates an insulation layer on the droplets in flight such that the droplets form a material having domains with insulated boundaries.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 3, 2013
    Inventors: Martin Hosek, Sripati Sah
  • Patent number: 8256493
    Abstract: A surface treatment method includes covering a surface of a casting mold with a carbon film containing at least one type of nanocarbon selected from the group of carbon nanocoils, carbon nanotubes and carbon nanofilaments, and further applying fullerenes to that surface. With this surface treatment method being performed on a surface (a cavity surface, etc. of a casting mold) making contact with a molten casting material such as aluminum, etc., sticking of the molten casting material to the mold is inhibited, release resistance of the product is reduced, and release effectiveness is improved. The release effectiveness lasts longer than in the case of a conventional carbon film.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: September 4, 2012
    Assignees: Toyota Jidosha Kabushiki Kaisha, MEC International Co., Ltd.
    Inventors: Yuichi Furukawa, Fumio Kawahara, Hidenori Matsuoka, Hitoshi Kabasawa
  • Publication number: 20120067539
    Abstract: An investment casting system includes a computer controlled mold transfer device movable between at least three stations, including a mold receiving station. A mold transfer station includes a mold suspended from a first horizontally extending arm of the mold transfer device engaging an intermediate transfer device to transfer the mold to the intermediate transfer device. A storage station has a storage rack receiving the mold following a material coating phase. A robot in communication with the intermediate transfer device is programmed to position the mold in any of multiple material coating stations during the material coating phase. The mold is accessible for removal from the system at any stage of completion by direction of a computer control system.
    Type: Application
    Filed: September 16, 2010
    Publication date: March 22, 2012
    Applicant: ANDERSEN & ASSOCIATES
    Inventors: Anthony F. Morgott, Mark J. Jordan
  • Patent number: 7931249
    Abstract: A process of reducing friction, which is encountered in molds utilized in injection molded, solder processing, and wherein glass mold plates have mold pits etched therein. The mold pates are subjected to a heat treatment so as to smooth or round-off sharp edges along the periphery of the mold pits.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: April 26, 2011
    Assignee: International Business Machines Corporation
    Inventor: Mark D. Schultz
  • Patent number: 7516774
    Abstract: A method for operating an automated reciprocator for applying lubricant in a die casting system. As a reciprocator is moved between two die halves and a fluid is applied to the dies with the reciprocator, a safety bar is moved ahead of the reciprocator. Any objects in the path of the reciprocator are detected by contact with the safety bar. If the safety bar contacts an object as the reciprocator is moving down, a sensor signals a control system and the reciprocator is stopped.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: April 14, 2009
    Assignee: Pace Industries, LLC
    Inventors: David R. Thomason, David E. Bumpus, Danny S. Alford, Olen L. Marshall
  • Patent number: 7401640
    Abstract: An exemplary die-casting mold core includes a mold body, an intermediate layer and a diamond-like carbon film. The mold body is made of a steel alloy containing carbon, chromium, manganese, silicon, vanadium, and iron. A molar percentage of hydrogen in the diamond-like carbon film is in a range from 2% to 25%. The die-casting mold core has excellent mechanical hardness, good corrosion resistance, good wear resistance, long lifetime and ease of separation.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: July 22, 2008
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Ga-Lane Chen
  • Patent number: 7299855
    Abstract: An automated reciprocator for applying lubricant to the cavity of a die casting system having a safety bar for preventing the reciprocator from injuring a person or damaging equipment which may be present in the reciprocator travel path. The safety bar is movably carried on the lower side of the reciprocator and includes a sensor to detect relative movement between the safety bar and the reciprocator. The proximity sensor is coupled to a control system. If the safety bar contacts an object as the reciprocator is moving down, the sensor signals the control system and the reciprocator is stopped.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: November 27, 2007
    Assignee: L&P Property Management Company
    Inventors: David R. Thomason, David E. Bumpus, Danny S. Alford, Olen L. Marshall
  • Patent number: 7290585
    Abstract: A movable die is fastened to a stationary die, a relationship between a contact force of an injection nozzle to an injection hole of the stationary die and a closeness is investigated, the injection nozzle is brought into press contact with the injection hole of the stationary die by a contact force achieving a predetermined closeness, and a lubricant is coated by a predetermined pressure. At this occasion, one end portion of a cavity is opened or air is exhausted from the end portion as necessary. The lubricant is coated as mist by being mixed with a compressed gas. Further, the lubricant is coated by maintaining constant a pressure difference between a pressure applied to the lubricant and an inner pressure of the cavity and a pressure difference between a pressure of the compressed gas and the inner pressure of the cavity.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: November 6, 2007
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Kengo Takeya, Shinichi Okimoto
  • Patent number: 7237596
    Abstract: The present invention concerns an element for the casting of a liquid metal, comprising a base body made from a refractory material, said body comprising an outer surface and an inner surface defining a pouring channel for the casting of the liquid metal. This element is characterized in that at least a part of the element inner surface is coated with an insulating coating forming, at the metal liquid contact, a gas impermeable layer. Such an element has an excellent thermal shock resistance which permits its use without preheating. Then a layer reducing advantageously the gas permeability is formed.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: July 3, 2007
    Assignee: Vesuvius Crucible Company
    Inventors: Eric Hanse, François Delvoye, Philippe Laval
  • Patent number: 7210514
    Abstract: A lubricant oil feeder 2 of a due casting machine 1 is made up of a lubricant oil feed passage 19 for feeding a lubricant oil into a clearance between the inner peripheral surface of a sleeve 7 and the outer peripheral surface of an injection piston 9, a lubricant oil feed valve 20 for opening or closing the lubricant oil feed passage, an air feed passage 16 for feeding air into a clearance between the inner peripheral surface of the sleeve and the outer peripheral surface of the injection piston, and an air feed valve 18 for opening and closing the air feed passage, and the arrangement is such that the lubricant oil feed valve is initially opened to feed the lubricant oil into the clearance between the sleeve and the injection piston and the air feed valve is then opened to pump the lubricant oil by the air. It is possible to spread the lubricant oil extensively and quickly, and accordingly, the useful life of the sleeve and the injection piston can be improved with a reduced quantity of lubricant oil.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: May 1, 2007
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Yoshiyuki Shinki, Isamu Izutsu, Kazuko Nishiyama, legal representative, Akira Nishiyama, deceased
  • Patent number: 7156144
    Abstract: A spray head for a spraying tool for spraying the halves of a casting tool is described, in which the connection is made to a traveling arm provided with the media-carrying passages through distributing blocks disposed one under the other, from which the connection is made to spray bars through cross connections. The new configuration is selected such that the connection of the spray bars can be made selectively to the one or other of the media passages. By arranging a plurality of distributing blocks together, the addition of spray bars can also be performed stack-wise at varying distances from the particular distributing block.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: January 2, 2007
    Assignee: Oskar Frech GmbH +Co. KG
    Inventors: Norbert Erhard, Hubert Pschenitschni
  • Patent number: 7040375
    Abstract: A diecasting machine comprising a movable and a stationary die half which, when closed, define a die cavity. The diecasting machine further comprises a filling chamber for receiving liquid metal, plunger, a slidingly displaceable inside the filling chamber and mounted on a plunger rod, for ejecting the liquid metal from the filling chamber and for injecting it into the die cavity, and a device for supplying lubricants for the plunger in the filling chamber. At least one pipe or one nozzle having an opening directed towards the plunger is fastened on the plunger rod. The pipe or the nozzle is linked with a reservoir for the lubricant via a supply line. A water-based releasing agent is sprayed into the intermediate space between the plunger rod and the cylindrical inner wall of the filling chamber in the direction of the plunger during a period in which the plunger is at its final lift position after the liquid metal has been injected into the die cavity.
    Type: Grant
    Filed: February 1, 2003
    Date of Patent: May 9, 2006
    Assignee: Alcan Technology and Management Ltd.
    Inventors: Georg Plötz, Johann Fackler, Elisabeth Wenzel
  • Patent number: 7025111
    Abstract: A process for coating a metallic component with a corrosion-resistant layer comprises providing a metallic shaping tool that is at least partially sprayed with concentrated mold release agent. The component is cast in the metallic shaping tool, the concentrated mold release agent being fired into a surface of the component during the solidification of the component.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: April 11, 2006
    Assignee: DaimlerChrysler AG
    Inventors: Andreas Barth, Marita Bauer, Wilfrid Polley
  • Patent number: 6953079
    Abstract: A die casting machine injecting and filling a molten metal into a cavity formed between a pair of dies so as to cast a product, comprising an ejecting pin for ejecting a casting by its front and sticking out inside the cavity and a powder feeder for feeding a powder release agent for promoting release of the casting from the dies, the ejecting pin including a release agent feed path for guiding powder release agent fed from the powder feeder to a front end of the ejecting pin and feeding it to the cavity.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: October 11, 2005
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Kazuhiro Suzuki, Shoko Kubota, Kazumi Tsuruda, Isao Kuboki, Toshiaki Toyoshima
  • Patent number: 6923242
    Abstract: An aluminum casting method includes the step of applying in advance a mold release agent including magnesium to a mold surface. Thereafter, a nitrogen gas is injected into a cavity to cause reaction between the magnesium in the surface of the mold release agent and the nitrogen gas, thereby forming magnesium nitride. Since the nitrogen gas reacts only with the magnesium exposed in the surface of the mold release agent, the forming time of the magnesium nitride is reduced and also the amount of nitrogen gas used is reduced.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: August 2, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yasuhiro Nakao, Hiroto Shoji, Kunitoshi Sugaya, Takashi Kato, Takaharu Echigo, Satoshi Matsuura, Kenichi Kawasaki
  • Patent number: 6837300
    Abstract: A lubrication control system for use with or in a metal casting mold. Aspects of the invention include a lubricant flow stop or plug which prevents or controls the flow of lubricant from the mold during non-casting times.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: January 4, 2005
    Assignee: Wagstaff, Inc.
    Inventors: Timothy James Cooper, Brett Thielman
  • Publication number: 20040206469
    Abstract: An aluminum casting method includes the step of applying in advance a mold release agent including magnesium to a mold surface. Thereafter, a nitrogen gas is injected into a cavity to cause reaction between the magnesium in the surface of the mold release agent and the nitrogen gas, thereby forming magnesium nitride. Since the nitrogen gas reacts only with the magnesium exposed in the surface of the mold release agent, the forming time of the magnesium nitride is reduced and also the amount of nitrogen gas used is reduced.
    Type: Application
    Filed: February 2, 2004
    Publication date: October 21, 2004
    Inventors: Yasuhiro Nakao, Hiroto Shoji, Kunitoshi sugaya, Takshi Kato, Takaharu Echigo, Satoshi Matsuura, Kenichi Kawasaki
  • Patent number: 6786271
    Abstract: A metal object forming method includes a preliminary step and a metal-injecting step. At the preliminary step, flowability-improving material is put in a molding die. Then, at the metal-injecting step, molten metal is poured into the die for producing a casting. Due to the high temperature of the molten metal, the flowability-improving material melts into the molten metal, to cause the freezing point depression of the molten metal.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: September 7, 2004
    Assignee: Fujitsu Limited
    Inventors: Masanobu Ishiduka, Noriyasu Aso, Kouta Nishii, Koichi Kimura
  • Patent number: 6776214
    Abstract: Methods for making various titanium base alloys and titanium aluminides into engineering components such as rings, tubes and pipes by melting of the alloys in a vacuum or under a low partial pressure of inert gas and subsequent centrifugal casting of the melt in the graphite molds rotating along its own axis under vacuum or low partial pressure of inert gas are provided, the molds having been fabricated by machining high density, high strength ultrafine grained isotropic graphite, wherein the graphite has been made by isostatic pressing or vibrational molding, the said molds either revolving around its own horizontal or vertical axis or centrifuging around a vertical axis of rotation.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: August 17, 2004
    Assignee: Santoku America, Inc.
    Inventors: Ranjan Ray, Donald W. Scott
  • Patent number: 6742569
    Abstract: The present invention relates to a die casting machine which includes a dispenser that causes a plunger lubricant to undergo a phase change. The dispenser also dispenses the plunger lubricant. The present invention also relates to a method of lubricating a die casting machine which involves effecting a phase change in the plunger lubricant prior to dispensing the plunger lubricant. The present invention also relates to a plunger lubricant blank which under goes a phase change in the dispenser.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: June 1, 2004
    Assignee: Chem-Trend, Inc.
    Inventor: Dean Edwards
  • Patent number: 6742566
    Abstract: The die casting machine 1 comprises: a metallic mold 2 including a product cavity section 21 for forming a die casting product 8, a plunger sleeve section 22 and a runner 23; a decompressing device 4 for decompressing the inside of the metallic mold 2; a powder supply source 5 for supplying a powder mold releasing agent 6 into the metallic mold 2; and a powder discharging pin 3 arranged in the runner 23 in a retractable condition. The powder discharging pin 3 includes: a first opening section 311 to open the powder introducing passage 31, which is connected with the powder supply source 5, to the product cavity section 21 and a second opening section 312 to open the powder introducing passage 31 to the plunger sleeve section 22, when the powder discharging pin 3 advances into the runner 23.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: June 1, 2004
    Assignee: Denso Corporation
    Inventors: Koji Nishikawa, Toshihiko Hamada
  • Publication number: 20040099399
    Abstract: A die casting machine injecting and filling a molten metal into a cavity formed between a pair of dies so as to cast a product, comprising an ejecting pin for ejecting a casting by its front and sticking out inside the cavity and a powder feeder for feeding a powder release agent for promoting release of the casting from the dies, the ejecting pin including a release agent feed path for guiding powder release agent fed from the powder feeder to a front end of the ejecting pin and feeding it to the cavity.
    Type: Application
    Filed: September 15, 2003
    Publication date: May 27, 2004
    Applicant: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Kazuhiro Suzuki, Shoko Kubota, Kazumi Tsuruda, Isao Kuboki, Toshiaki Toyoshima
  • Patent number: 6651726
    Abstract: A method of attaching a mold releasing agent to a molding die, a molding apparatus and a molding die therefor are disclosed. A fixed die (11) of the molding die (1) is connected to the nozzle receiving surface of a molding cavity (10) facing a material supplying nozzle. The mold releasing agent is attached to the material contacting surface (100) of the molding die (1) in such a manner that the fixed die (11) and a movable die (12) are arranged in opposed relation to each other with a gap therebetween less than a distance which allows release of a molded product, and under this condition, the mold releasing agent is supplied to the material contacting surface (100) through the gap between the material supplying nozzle (31) and the nozzle receiving surface (131).
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: November 25, 2003
    Assignee: Denso Corporation
    Inventors: Hideyuki Suzuki, Koichiro Sato, Mitsutoshi Miyazaki
  • Patent number: 6615902
    Abstract: A die casting machine includes vacuum tank 26 and vacuum pump 27 that together evacuate the inside of a mold cavity 40 to a first degree of vacuum, and vacuum tank 21 and vacuum pump 22 that together evacuate the cavity to a second degree of vacuum higher than the first degree of vacuum. The cavity 40 is connected to vacuum tanks 21 and 26 for evacuating the cavity 40 through an evacuation passage 17. When solenoid valves 19 and 24 open and the cavity is evacuated, a powder mold releasing agent is supplied by a powder feeding apparatus 30 into the cavity 40. Filters 20 and 25 each having a filter diameter smaller than a mean grain diameter of the powder mold releasing agent are interposed between the solenoid valves 19, 24 and the vacuum tanks 21, 26, respectively. When the vacuum tanks 21 and 26 evacuate the cavity 40, filters 20 and 25 capture the major proportion of the powder mold releasing agent, and the occurrence of trouble in the vacuum tanks, etc, can be prevented.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: September 9, 2003
    Assignee: Denso Corporation
    Inventors: Koji Nishikawa, Toshihiko Hamada
  • Publication number: 20030155094
    Abstract: The present invention relates to a die casting machine which includes a dispenser that causes a plunger lubricant to undergo a phase change. The dispenser also dispenses the plunger lubricant. The present invention also relates to a method of lubricating a die casting machine which involves effecting a phase change in the plunger lubricant prior to dispensing the plunger lubricant. The present invention also relates to a plunger lubricant blank which under goes a phase change in the dispenser.
    Type: Application
    Filed: February 21, 2002
    Publication date: August 21, 2003
    Applicant: Chem-Trend
    Inventor: Dean Edwards
  • Patent number: 6546994
    Abstract: In a process and in a device (10) for preparing the mold walls (12a, 12b) of a mold (12, 12) for the molding or shaping of a molded part after completion of the molding cycle and after removal of the molded part from the mold (12) to make the mold walls ready for the next molding cycle, the tempering of the mold walls (12a, 12b) and the coating of the walls with mold wall treatment agent are carried out independently of each other, i.e., without any time overlap, and in a controlled manner, preferably in a program-controlled manner. To apply the coating, preferably a spray element with centrifugal atomization and air control is used, the mold walls preferably being coated with essentially solvent-free mold wall treatment agent.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: April 15, 2003
    Assignee: Acheson Industries, Inc.
    Inventors: Hans-Dieter Renkl, Douwe Marten Kok, Thomas Junker, Karl-Heinz Keim
  • Publication number: 20030062142
    Abstract: The die casting machine 1 comprises: a metallic mold 2 including a product cavity section 21 for forming a die casting product 8, a plunger sleeve section 22 and a runner 23; a decompressing device 4 for decompressing the inside of the metallic mold 2; a powder supply source 5 for supplying a powder mold releasing agent 6 into the metallic mold 2; and a powder discharging pin 3 arranged in the runner 23 in a retractable condition. The powder discharging pin 3 includes: a first opening section 311 to open the powder introducing passage 31, which is connected with the powder supply source 5, to the product cavity section 21 and a second opening section 312 to open the powder introducing passage 31 to the plunger sleeve section 22, when the powder discharging pin 3 advances into the runner 23.
    Type: Application
    Filed: September 23, 2002
    Publication date: April 3, 2003
    Inventors: Koji Nishikawa, Toshihiko Hamada
  • Patent number: 6460596
    Abstract: A method of coating a powder lubricant in a metallic injection molding machine having a die composed of a stationary die (2) and a movable die (10), a sprue hole (4), runner groove (5), gate hole (6) and cavity (7) being formed on parting faces (P) of these dies (2, 10), a cold plug catcher (13) communicating with the sprue hole (4) when the movable die (10) is fastened to the stationary die (2) being formed in the movable die, the method of coating a powder lubricant in a metallic injection molding machine comprising the step of coating the powder lubricant from the cold plug catcher (13) toward the cavity (7) by decompressing the inside of the sprue hole, runner groove, gate hole and cavity from the cavity side.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: October 8, 2002
    Assignees: The Japan Steel Works, Ltd., Hanano Corporation
    Inventors: Takeshi Yamaguchi, Hidenori Takayasu, Ryuichi Sakamoto, Tadayoshi Tukeda, Toshiyuki Tange, Keiji Gohonjo
  • Patent number: 6073676
    Abstract: An installation has a fixed die portion and a moving die portion, ejector rods under the control of an actuator fed with control fluid, and a spray device for spraying a coating substance. A monitoring apparatus comprises a pressure sensor for continuously measuring the pressure of a control fluid, a device for measuring and recording the pressure as a function of time, a device for comparing the recorded measurement with a reference measurement, and a device for modifying the spraying of the coating substance as a function of the comparison.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: June 13, 2000
    Assignee: Centre Technique des Industries de la Fonderie
    Inventors: Patrick Hairy, Michel Richard
  • Patent number: 5937931
    Abstract: The casting plant includes dual independent casting workstations which sequentially interact with a common core inserting station, the dual workstations include casting removal stations, cooling and blackwash stations, and casting die travelling and manipulating units. The several workstations are compactly arranged, whereby only one operator is needed for core inserting and cleaning of the die halves. Each set of workstations may operate independently of the other set.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: August 17, 1999
    Assignee: KWC AG
    Inventor: Harry Hassig
  • Patent number: 5916367
    Abstract: Proposed is a spraying-tool head (1), for use in particular in foundries, which has a distribution plate (9) fitted to an adapter (7) and, screwed onto the distribution plate, a nozzle plate (11) equipped with spray nozzles (4). The adapter as well as the distribution plate and the nozzle plate can be extended by adding screw-on or insertable modules.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: June 29, 1999
    Assignee: WOTEC Automationssysteme GmbH
    Inventor: Rudolf Wollin
  • Patent number: 5881797
    Abstract: In a mould-pressing machine, atomizing nozzles with a vortex chamber deliver atomized liquid mixed with air through outlet apertures. The atomizing air nozzle or nozzles are constantly supplied with compressed air through a pressure conduit while the liquid nozzle solely receives liquid under pressure through a liquid channel and a slave valve controlled by the liquid pressure in the periods during which injection of liquid mist is desired. A first (upstream) vortex chamber is provided upstream of a second (downstream) vortex chamber, and between these two vortex chambers a flow path is provided to interconnect the two vortex chambers, through which flow path the liquid mist having been formed in the first vortex chamber is forced to pass and change its direction and velocity of flow at least one, thus reducing the droplet size of the liquid mist.
    Type: Grant
    Filed: January 2, 1998
    Date of Patent: March 16, 1999
    Assignee: George Fisher Disa A/S
    Inventor: Ole Oksby Hansen
  • Patent number: 5842510
    Abstract: In a method for applying a powder state mold lubricant onto a die-casting mold, a movable mother die and a stationary mother die are clamped to define a mold cavity with a movable insert die and a stationary insert die, in which a plunger tip slidably arranged within a sleeve opens a molten material supply hole, and communication between the sleeve and the mold cavity is blocked. A pressure within the mold cavity is reduced by opening a powder suction passage opening into the mold cavity and establishing communication between a powder discharge passage communicated with a powder storage source and a molten material supply passage opening to the mold cavity. The powder state mold lubricant is directly within the powder storage source into the mold cavity via the molten material supply passage for applying the powder state mold lubricant on the mold surface of the mold cavity.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: December 1, 1998
    Assignee: Keihin Corporation
    Inventors: Katsuo Nagashima, Shinichi Oomachi, Fumihiro Sakuma
  • Patent number: 5842509
    Abstract: An application method of a powder mold lubricant for a vacuum die-casting mold can effectively apply the powder mold lubricant onto a mold surface of the mold cavity with supplying the powder mold lubricant in small amount, can avoid liquefying of the power mold lubricant to degrade quality of a product, and can avoid loss in cycle time in a vacuum die-casting operation.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: December 1, 1998
    Assignee: Keihin Corporation
    Inventors: Katsuo Nagashima, Shinichi Oomachi, Fumihiro Sakuma
  • Patent number: 5697419
    Abstract: A method for coating a die surface with a foamed release agent is disclosed. The release agent is foamed outside a die and then is supplied to a die cavity. Alternatively, liquid release agent is supplied to the die cavity and then is foamed inside the die. Excess foamed release agent is removed from the die before molten metal is supplied to the cavity. Alternatively, the foamed release agent is left in the cavity, and molten metal is supplied to the cavity. The release agent is foamed through mechanical agitation, bubbling, or by gas released from the release agent when heated.
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: December 16, 1997
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mitsuhiro Karaki, Mikiya Nozaki, Naoya Yamamoto
  • Patent number: 5657833
    Abstract: Self-contained lubricant delivery apparatus for crushing unitized lubricant elements and delivering flowable lubricant from the crushed elements to lubricant requiring portions of a die casting machine. The apparatus includes a cylinder body defining a delivery cylinder closable by an end wall of a movable reaction body and which is opened by an actuating cylinder for insertion of an element of flowable lubricant in a crushable container or formed as a pellet. When the delivery cylinder is closed, a ram in the cylinder crushes the lubricant element against the end wall, forcing the lubricant through a restricted passage and hydraulic conduit to the lubricant requiring portion of the die casting machine.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: August 19, 1997
    Inventor: Lewis Gene Freeman
  • Patent number: 5638921
    Abstract: Lubricant delivery apparatus for crushing unitized lubricant elements and delivering flowable lubricant from the crushed elements to a die casting machine die cavity. The apparatus includes a delivery cylinder on or in one die which opens with the dies for insertion of an element of flowable lubricant in a crushable container or formed as a pellet. When the dies are closed, a ram in the cylinder crushes the lubricant element against a wall on or in the other die, forcing the lubricant through a restricted passage between the dies and into the die cavity. In alternative embodiments, the delivery cylinder is disposed generally parallel with or perpendicular to the parting line of the pair of dies.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: June 17, 1997
    Assignee: Chrysler Corporation
    Inventor: Lewis Gene Freeman
  • Patent number: 5582227
    Abstract: In a molding system a box has a pair of oppositely open ends has inner side faces and respective mold plates are engageable in the open ends to close same and have faces defining with the inner side faces a mold cavity. Sand is introduced into the cavity between the faces and is compressed in the cavity to form a mold part. An aerosol mist under superatmospheric pressure and comprised of air and finely divided droplets of a coating liquid is sprayed into the mold cavity when same is closed by the mold plates but before the sand is introduced into the cavity so that the droplets settle on the faces and coat same with the liquid.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: December 10, 1996
    Inventors: Karin Schuch, Harry Post
  • Patent number: 5536318
    Abstract: A method of application of finning preventive agent in an apparatus for casting anodes for electrolyzing copper by pouring molten copper into the molds, in which the inner planes of the molds can be coated with the finning preventive agent in a reliable and efficient manner, is provided. Before pouring molten copper into the molds, silicon oil is automatically applied to the inner planes 2a.sub.1, to 2a.sub.10 of the molds M dividedly in three applications by industrial robots 24, 25 of a vertical multi-articulate type having brushes 30. An amount of silicon oil consumed is 4 to 10 cc for one mold.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: July 16, 1996
    Assignee: Nippon Mining & Metals Co., Ltd.
    Inventors: Fumio Hashiuchi, Yushirou Hirai, Eiji Iwasaki
  • Patent number: 5531262
    Abstract: The delivery unit includes a transfer member in the form of a linear transfer plunger or slide that acts to transfer controlled amounts of lubricant from a loading chamber to a delivery chamber for delivery by air pressure to the casting apparatus. Various delivery units are included arranged in three groups having similar characteristics including a charge control mechanism and the form of the transfer plunger. Various arrangements of die casting apparatus with a lubricant delivery unit for delivering lubricant into selected locations of a die casting machine are also included.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: July 2, 1996
    Inventor: Lewis G. Freeman
  • Patent number: 5529111
    Abstract: The delivery unit includes a transfer member in the form of two aligned plungers that act to transfer controlled amounts of lubricant from a loading chamber to a delivery chamber for delivery by air pressure to the casting apparatus. The volume of lubricant transferred is controlled by a charge control mechanism interconnecting the plungers for adjusting the distance between the plunger ends.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: June 25, 1996
    Inventor: Lewis G. Freeman
  • Patent number: 5524702
    Abstract: The delivery unit includes a transfer member in the form of a linear transfer plunger that acts to transfer controlled amounts of lubricant from a loading chamber to a delivery chamber for delivery by air pressure to the casting apparatus. The volume of lubricant transferred is controlled by a charge control mechanism having a charge control plunger disposed below an inlet for the lubricant.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: June 11, 1996
    Inventor: Lewis G. Freeman
  • Patent number: 5524701
    Abstract: The delivery unit for delivering includes a transfer member in the form of a linear transfer plunger that acts to transfer controlled amounts of lubricant from a loading chamber to a delivery chamber for delivery by air pressure to the casting apparatus. The volumes of lubricant transferred is controlled by a charge control mechanism having a charge control plunger disposed below the delivery chamber for delivering lubricant.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: June 11, 1996
    Inventor: Lewis G. Freeman
  • Patent number: 5494094
    Abstract: In a mold-pressing machine with liquid-mist injection, using atomizing nozzles (9) with a vortex chamber (27) delivering atomized liquid mixed with air through outlet apertures (26), compressed air constantly being supplied to the atomizing-air nozzle (29), while the liquid nozzle (28) receives liquid under pressure through a liquid conduit (19,25), a liquid duct (31) and a slave valve (32,33) controlled by the liquid pressure solely in those periods, during which the liquid mist is desired to be injected, the new feature is that the liquid conduit (19,25) comprises a fast-acting air-escape valve (13), possibly of the same kind as those being used with pneumatic cylinders, causing any air having penetrated into the liquid duct (31) during the rest intervals because of a leak in the slave valve (32,33) to flow to an escape conduit (21).
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: February 27, 1996
    Assignee: Dansk Industri Syndikat A/S
    Inventor: Ole A. Jacobsen
  • Patent number: 5435373
    Abstract: The fill chamber bore of a die-casting machine is lubricated and prepared for casting by inserting an elongated member into the die-end of the bore while spraying with lubricant. During withdrawal of the elongated member, a conical spray of gas directed toward the die-end drys the lubricant and sweeps vapor and flash, or solder, out of the die-end. The elongated member is preferably a flexible carrier which is guided between the bore and a path between the open die halves lateral to the bore. The lateral path is perferably defined by a tubular member supported by a vertical carriage mounted on a vertical mast for alignment of the flexible carrier with the fill chamber bore when the dies are open. The vertical mast can be mounted on a horizontal carriage moveable along a horizontal bore to preclude interference with normal operation of the die-casting machine.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: July 25, 1995
    Assignee: Aluminum Company of America
    Inventors: Donald L. Drane, James R. Fields, Robert C. Wallace, Thomas J. Kasun, Robert E. Robinson