Piston-cylinder Charger Patents (Class 164/312)
  • Patent number: 10293401
    Abstract: A full-servo multi-axis mold clamping device for a die-casting machine, including at least one main body, including a servo motor, actuating arm and mold fixing slide block, one end of the servo motor having a deceleration mechanism coupled eccentrically to the actuating arm, another end of the actuating arm being coupled pivotally to the mold fixing slide block; whereby, the actuating arm is driven to rotate to drive the mold fixing slide block to move to and fro when the servo motor is running.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: May 21, 2019
    Assignee: T-SOK CO., LTD.
    Inventor: Kun-Szu Kao
  • Patent number: 10293402
    Abstract: A gooseneck operation device of a full-servo multi-axis die-casting machine includes a gooseneck operation device body, which includes a servomotor, a first transmission arm, a second transmission arm, and an injection unit. The servomotor includes a speed reduction mechanism, which is mounted, in an eccentric manner, in a spindle hole formed in the first transmission arm. The second transmission arm includes a rotatable joint section rotatably mounted to an opposite end of the first transmission arm and a transmission section that is provided with two bifurcation sections. The injection unit includes projection sections coupled to the bifurcation sections such that the operation of the servomotor causes the first and second transmission arms to drive the transmission section to rotate and make the bifurcation sections to oscillate frontwards and rearwards with the rotation of the transmission section so as to drive the injection unit to operate.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: May 21, 2019
    Assignee: T-SOK CO., LTD.
    Inventor: Kun-Szu Kao
  • Patent number: 10293403
    Abstract: A full-servo multi-axis injection device for a die-casting machine, including a main body, including a hollow frame, servo motor, screw rod, transmission unit, and injection unit, the servo motor being configured on a top of the frame, one end of the servo motor having a deceleration mechanism in connection with one end of the screw rod, another end of the screw rod being in connection with the transmission unit, another end of the transmission unit the injection unit, and the injection unit having at least one input and at least one output. Whereby, the servo motor drives the screw rod to rotate upon running, and the transmission unit converts the rotation of the screw rod to a vertical reciprocating movement.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: May 21, 2019
    Assignee: T-SOK CO., LTD.
    Inventor: Kun-Szu Kao
  • Patent number: 10265761
    Abstract: A casting device and a diecasting method, preferably a vacuum die-casting method, includes a casting chamber having a filling opening, and a casting piston that can be moved in the casting chamber and is connected with a casting drive by way of a casting piston rod. The device also includes a feed line, by way of which casting material can be filled into the casting chamber through the filling opening. The casting chamber is disposed, at least in part, in a sleeve that is mounted so as to rotate.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: April 23, 2019
    Assignee: KSM Castings Group GmbH
    Inventor: Michael Werner
  • Patent number: 10195660
    Abstract: A device for casting a metallic component comprising an outer undercut comprises a base body with a first end portion and a circumferential side wall comprising a tapering inner surface; a first die part that is insertable into the base body and that forms a first molding surface for the component to be cast; a plurality of side die parts, which are insertable into the base body and which, in the inserted state, are radially supported against the circumferential side wall of the base body and form a die ring comprising an inner molding surface for the component to be cast; a second die part which is moveable into the die ring formed by the side die parts to a casting position, and which forms a second molding surface for the component to be cast, wherein in the casting position, the second die part is arranged in a completely contact-free manner with respect to the first die part.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: February 5, 2019
    Assignee: Mubea Performance Wheels GmbH
    Inventors: Josef Gartner, Werner Hubauer
  • Patent number: 10173261
    Abstract: A die casting plunger tip includes a hollow outer portion and a hollow inner portion. The outer portion has a first closed end. The inner portion has a second partially closed end. The inner portion is disposed within the outer portion and the second partially closed end is adjacent the first closed end of the outer portion in an axial direction. A plurality of connectors connects the outer portion and the inner portion. A plenum is formed between the outer portion and the inner portion.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: January 8, 2019
    Assignee: United Technologies Corporation
    Inventors: Thomas N. Slavens, Carl R. Verner, Albert Rabinovich, Weiduo Yu, Awadh B. Pandey
  • Patent number: 10124403
    Abstract: A shot sleeve for a die-casting apparatus is described. The shot sleeve has a piston bore, and comprises an elongate body having an axial bore, and a sleeve liner formed on a surface of the axial bore. The sleeve liner defines a surface of the piston bore.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: November 13, 2018
    Assignee: Exco Technologies Limited
    Inventor: Paul Henry Robbins
  • Patent number: 10092950
    Abstract: A device for die casting a metal component included a die casting mold which has a cavity that forms the component. The cavity is connected to a source for a metal melt by at least one temperature controlled supply channel. The metal melt is introduced into the cavity via at least one casting valve. The supply channel forms an annular channel, in which metal melt can be circulated via a conveying apparatus.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: October 9, 2018
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Jean-Marc Segaud, Richard Schaechtl, Lucas Schulte-Vorwick, Hubert Lang
  • Patent number: 10071417
    Abstract: A shot sleeve for use in a die cast assembly has a shot sleeve body extending along an axis and having a bore for receiving a plunger. An insert is secured at a shot end of the shot sleeve body. A die cast assembly is also disclosed.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: September 11, 2018
    Assignee: United Technologies Corporation
    Inventors: Yuan Kwang Lim, Yan Seng Loh, Andrew Tan, Yao Hui Chee, Shih Han Wong, yee Ling Kwan
  • Patent number: 9889494
    Abstract: Provided is a press forming method for a semi-solid metal material, including: manufacturing a semi-solid metal material in a container having an upward opening by injecting molten metal into the container, and cooling the molten metal while stirring the molten metal; inverting the container and storing the semi-solid metal material in a temporary storage space; discharging a liquid phase part from the semi-solid metal material through the inverting; and pressing the semi-solid metal material by feeding the semi-solid metal material, from which the liquid phase part is discharged, into dies of a pressing machine.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: February 13, 2018
    Assignee: AIDA Engineering Co., Ltd.
    Inventors: Seiji Nakamura, Yuji Abe, Setsuo Toda
  • Patent number: 9744590
    Abstract: An apparatus for injecting molten metal into a die cast machine is provided. The apparatus includes a molten metal reservoir having a first open end in fluid communication with a die casting mold and a second open end. The molten metal reservoir includes at least one first cooling fluid path positioned about at least a portion of an outer surface of the molten metal reservoir and in thermal contact with the molten metal reservoir. The apparatus further includes a plunger sized to fit within the second open end. The plunger includes a plunger tip and a second cooling fluid path defined within the plunger tip and in thermal contact with the molten metal reservoir. A plurality of thermal actuators are also provided. Each of the plurality of thermal actuators controls a volume of cooling fluid flowing through one first cooling fluid path of the at least one first cooling fluid path or the second cooling fluid path.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: August 29, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Karl Schroeder, Robert C. De Neff, Tom Stasiak, Tim Hider, Shane Homan, Don Whitmore
  • Patent number: 9630246
    Abstract: Disclosed is an apparatus comprising at least one gate and a vessel, the gate being configured to move between a first position to restrict entry into an ejection path of the vessel and contain a material in a meltable form within the vessel during melting of the material, and a second position to allow movement of the material in a molten form through the ejection path. The gate can move linearly or rotate between its first and second positions, for example. The apparatus is configured to melt the material and the at least one gate is configured to allow the apparatus to be maintained under vacuum during the melting of the material. Melting can be performed using an induction source. The apparatus may also include a mold configured to receive molten material and for molding a molded part, such as a bulk amorphous alloy part.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: April 25, 2017
    Assignee: Crucible Intellectual Property, LLC
    Inventors: Quoc Tran Pham, Michael Deming, Theodore A. Waniuk, Sean O'Keeffe
  • Patent number: 9604275
    Abstract: In order to provide a covered member for which unexpected galling is suppressed in the initial stages when the member is used, and which has excellent sliding properties, a covered member has a hard film on the working surface and has excellent sliding properties, said hard film including an A layer, for which an a1 layer comprising a nitride, carbonitride, or oxynitride having 30% or more of chromium in terms of atomic ratio in metal (including metalloid; the same shall apply hereinafter) component, and an a2 layer comprising a nitride, carbonitride, or oxynitride having 60% or more of vanadium in terms of atomic ratio in metal component, are alternately laminated, and a B layer on the upper layer of said A layer and comprising a nitride, carbonitride, or oxynitride having 60% or more of vanadium in terms of atomic ratio in metal component.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: March 28, 2017
    Assignee: HITACHI METALS, LTD.
    Inventors: Fumiaki Honda, Kenichi Inoue
  • Patent number: 9492865
    Abstract: The present invention provides a take out device of the wheel die casting machine, consisting of a guide sleeve, a guide post, a cylinder, a motor, a fixture and a bearing seat, etc. When in use, the take out device provided by the present invention can stably receive the wheels produced by die-casting and then remove the four joint flashes, so that the problems that the wheel directly drops onto a tray to cause knock damage on the facade and the flashes become hard and are difficult to be removed after the wheel is cooled by dipping in water are solved, and meanwhile, the take out device has the advantages of simple structure, low manufacturing cost and safe and stable performance.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: November 15, 2016
    Assignee: CITIC Dicastal CO., LTD.
    Inventors: Bowen Xue, Yacong Zhang, Jiandong Guo, Yongning Wang, Zhihua Zhu, Changhai Li, Binyu Xiong
  • Patent number: 9463505
    Abstract: A die casting piston (1) for die casting nonferrous metals has at least one outer part such as a piston body (11), an intermediate ring (9), a sealing ring (7) etc. that is generally ring-shaped so as to surround a piston carrier (3) and provided with an axial slot (41, 59, 117) so that the part can expand and contract tangentially during a temperature change, e.g. from ambient temperature to operating temperature. Due to this design of the outer parts of the piston, cooling can be limited to a smaller portion of the piston, preferably substantially to the rear side of the piston cover (5; 154). The result is a substantially shortened overall construction of the die casting piston (1) that is reflected by reduced production costs. In accordance with the smaller dimensions of the cooled zone, a reduced coolant flow is required.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: October 11, 2016
    Inventor: Gani Murselaj
  • Patent number: 9457399
    Abstract: An injection molding system and methods for improving performance of the same. The system includes a plunger rod and a melt zone that are provided in-line and on a vertical axis. The plunger rod is moved in a vertical direction through the melt zone to move molten material into a mold. The injection molding system can perform the melting and molding processes under a vacuum. Skull formation in molten material is reduced by providing an RF transparent sleeve in the melt zone and/or a skull trapping portion adjacent an inlet of the mold. It can also be controlled based on the melting unit. Vacuum evacuation can be reduced during part ejection by using a plunger seal, so that evacuation time between cycles is reduced.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: October 4, 2016
    Assignee: Apple Inc.
    Inventors: Christopher D. Prest, Dermot J. Stratton, Joseph C. Poole, Matthew S. Scott
  • Patent number: 9364983
    Abstract: An injection apparatus includes a pressure accumulating portion, which is connected to an injection cylinder, and a speed reduction mechanism, which reduces the speed of the injection cylinder arranged in the injection apparatus. The speed reduction mechanism includes an actuating member, which moves integrally with a rod of an injection cylinder rod, and a restriction member, which is arranged in a flow passage for draining or supplying hydraulic oil from or to the injection cylinder, and variably narrows the flow passage in conjunction with movement of the actuating member.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: June 14, 2016
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Kazuyuki Yamaguchi
  • Patent number: 9248596
    Abstract: The injection apparatus is provided with a high speed step cylinder, a pressure accumulation part and a coupling mechanism. The high speed step cylinder has a rod and an operating chamber. The coupling mechanism is capable of switching between a coupled state in which the movement of the rod is restricted, and a non-coupled state in which the coupled state is released so as to enable the rod to move due to the operating pressure. The coupling mechanism includes a first coupling member, a second coupling member and a drive source. The coupling mechanism is kept in the coupled state in which the second coupling member is rotated to less than 90°. When the second coupling member is forced to rotate in the coupled state, the first coupling member rotates such that a first contact surface is in contact with a second contact surface.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: February 2, 2016
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Kazuyuki Yamaguchi
  • Patent number: 9233417
    Abstract: A diecasting machine casting unit includes a casting chamber body having a casting chamber with a casting material inlet and outlet. A casting piston is movable forward in a longitudinal direction in the casting chamber to discharge casting material from the casting chamber under pressure via the outlet, and is movable back, whereby casting material is feedable into the casting chamber via the inlet. The casting piston extends through a through-passage of the casting chamber body from outside into the casting chamber. An area of free space of the casting chamber is formed between an outer lateral surface of the casting piston and an inner wall surface of the casting chamber body transversely relative to the casting piston longitudinal direction by an outer cross section of the casting piston being appropriately smaller than an inner cross section of the casting chamber body.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: January 12, 2016
    Assignee: Oskar Frech GmbH + Co. KG
    Inventors: Norbert Erhard, Helmar Dannenmann, Juergen Kurz, Andreas Sydlo, Daniel Gerner
  • Patent number: 9101977
    Abstract: Various embodiments provide systems and methods for casting amorphous alloys. Exemplary casting system may include an insertable and rotatable vessel configured in a non-movable induction heating structure for melting amorphous alloys to form molten materials in the vessel. While the molten materials remain heated, the vessel may be rotated to pour the molten materials into a casting device for casting them into articles.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: August 11, 2015
    Assignee: Apple Inc.
    Inventors: Theodore A. Waniuk, Joseph Stevick, Sean O'Keeffe, Dermot J. Stratton, Joseph C. Poole, Matthew S. Scott, Christopher D. Prest
  • Patent number: 9062739
    Abstract: An electric cylinder has a cylinder housing and a clamping assembly in the cylinder housing. An electric motor assembly is coupled with the clamping assembly to drive the clamping assembly between a first and second position. The electric motor assembly has an electric motor with a rotary output. The clamping assembly has a drive pulley assembly coupled with the rotary output. A lead screw is rotatably coupled with the drive pulley for axial movement. The lead screw moves between the first and second positions. A compliance coupling is positioned between the lead screw and the drive pulley. The compliance coupling is axially movable in the pulley assembly for absorbing shock when the piston assembly encounters a stop.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: June 23, 2015
    Assignee: Delaware Capital Formation, Inc.
    Inventor: James Geary
  • Patent number: 9027631
    Abstract: Metal alloy injection molding techniques are described. In one or more implementations, these techniques may also include adjustment of injection pressure, configuration of runners, and/or use of vacuum pressure, and so on to encourage flow of the metal alloy through a mold. Techniques are also described that utilize protrusions to counteract thermal expansion and subsequent contraction of the metal alloy upon cooling. Further, techniques are described in which a radius of edges of a feature is configured to encourage flow and reduce voids. A variety of other techniques are also described herein.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: May 12, 2015
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Paul C. Bornemann, Raj N. Master, Michael Joseph Lane, Seah Sun Too
  • Publication number: 20150122449
    Abstract: A pressure die casting piston assembly has a pressure die casting piston. The die casting piston has a front head, a substantially cylindrical side wall extending upwardly from the front head in fixed position relative thereto. A cup-shaped chamber is defined by the front head and the side wall. The side wall is closed by the front head. The die casting piston has a coolant channel passing through the side wall to allow a coolant to pass through the side wall and within the side wall.
    Type: Application
    Filed: January 12, 2015
    Publication date: May 7, 2015
    Inventor: Davide Brondolin
  • Publication number: 20150108884
    Abstract: A hermetically sealed disc drive comprising at least one aluminum alloy housing component manufactured with a thermally directed die casting press subassembly is disclosed. In one embodiment, the thermally directed die casting press subassembly comprises a thermally directed funnel gate that is skewed to sample molten material from an off-center portion of the shot sleeve. Disc drive housing components can be manufactured by injecting an aluminum alloy slurry from the shot sleeve through the thermally directed funnel gate and the injection nozzle into the die cavity. The aluminum alloy slurry may be a thixotropic slurry comprising a uniform primary aluminum particle size in the range of approximately 50 to 80 microns. The primary aluminum particles of cast products produced according to the methodology of the present disclosure, with the aforementioned particle size distribution, are free of encapsulated eutectic at the micron scale.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 23, 2015
    Applicant: T.H.T. PRESSES, INC.
    Inventors: Michael Thieman, Richard J. Kamm
  • Publication number: 20150107796
    Abstract: A wear ring for a piston of a die-casting apparatus comprises an annular body having a gap extending therethrough. The gap is configured to define at least two circumferentially offset pairs of circumferentially spaced apart facing surfaces. The facing surfaces of each pair are angled and configured to contact each other in a flush manner when the wear ring is circumferentially compressed.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 23, 2015
    Inventor: Paul Henry Robbins
  • Publication number: 20150101775
    Abstract: An production apparatus of a semi-solidified metal has a vessel and a cooling device. The vessel into which a liquid-state metal material M is poured has a hollow member which is opened in up and down directions, and a bottom member which can close the lower opening of the hollow member and can be separated from the hollow member. The cooling device can cool the bottom member more than the hollow member.
    Type: Application
    Filed: October 13, 2014
    Publication date: April 16, 2015
    Inventors: Koei NAKATA, Satoru AIDA, Satoshi TOMIOKA
  • Patent number: 8991473
    Abstract: Metal alloy injection molding techniques are described. In one or more implementations, these techniques may also include adjustment of injection pressure, configuration of runners, and/or use of vacuum pressure, and so on to encourage flow of the metal alloy through a mold. Techniques are also described that utilize protrusions to counteract thermal expansion and subsequent contraction of the metal alloy upon cooling. Further, techniques are described in which a radius of edges of a feature is configured to encourage flow and reduce voids. A variety of other techniques are also described herein.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: March 31, 2015
    Assignee: Microsoft Technology Holding, LLC
    Inventors: Paul C. Bornemann, Raj N. Master, Michael Joseph Lane, Seah Sun Too
  • Patent number: 8991474
    Abstract: Various embodiments provide systems and methods for casting amorphous alloys. Exemplary casting system may include an insertable and rotatable vessel configured in a non-movable induction heating structure for melting amorphous alloys to form molten materials in the vessel. While the molten materials remain heated, the vessel may be rotated to pour the molten materials into a casting device for casting them into articles.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: March 31, 2015
    Assignee: Apple, Inc.
    Inventors: Theodore A. Waniuk, Joseph Stevick, Sean O'Keeffe, Dermot J. Stratton, Joseph C. Poole, Matthew S. Scott, Christopher D. Prest
  • Patent number: 8978736
    Abstract: Described herein is a plunger of an injection molding machine, comprising a plunger body; a plunger tip that is a separate element from the plunger body and comprises an end surface configured to directly contact a molten material used in injection molding in the injection molding machine; wherein thermal conductance across the end surface of the plunger tip may be adjustable by moving the plunger tip relative to the plunger body such that temperature of the plunger tip may be adjusted during injection molding. When this plunger is used to injection molding of a BMG, it allows reduction of formation of crystalline phases near the plunger tip and allows replacement of the plunger tip without replacement of the plunger body.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 17, 2015
    Assignee: Crucible Intellectual Property, LLC
    Inventor: Joseph W. Stevick
  • Patent number: 8978735
    Abstract: By blocking an angular extent of an annular skimming trap used for semi-solid injection, a notable reduction in lenticular defects and porosity are observed. The blocking can be performed by a ring having dimensions to completely occlude a prior art annular skimming trap throughout the angular extent, and providing complete and/or partial flow across the ring throughout the rest of the angular extent. Preferably an outlet to the ring trap includes a chamfered edge and/or a deflector for encouraging flow of the contaminated semi-solid material into the trap.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: March 17, 2015
    Assignee: National Research Council of Canada
    Inventors: Chang-Qing Zheng, Dany Drolet
  • Patent number: 8967232
    Abstract: The invention relates to a vacuum die-casting system and a method for operating a vacuum die-casting system.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: March 3, 2015
    Assignee: KSM Castings Group GmbH
    Inventors: Michael Werner, Thomas Zwirner, Juergen Hofmeister, Roman Kaczmarczyk
  • Publication number: 20150041096
    Abstract: An injection head structure of a die casting machine contains: a base including a first inlet and a plunger rod. The base also includes a through hole, a head block having an outlet, and a neck having a guiding hole. The plunger rod is mounted in the through hole and includes a receiving groove, a second inlet, and a feeding orifice. The through hole of the base has an inner conical face formed around an inner wall thereof; the plunger rod includes an outer conical face arranged around an inner wall thereof, such that when the plunger rod is inserted into the through hole of the base, the inner conical face of the base contacts with the outer conical face of the plunger rod so that the base engages with the plunger rod.
    Type: Application
    Filed: August 9, 2013
    Publication date: February 12, 2015
    Inventor: Huilong Li
  • Patent number: 8944140
    Abstract: BMG may be squeeze cast in a squeeze cast machine. The squeeze cast machine may have a vacuum chamber, a transfer sleeve entirely located inside the vacuum chamber, and a plunger inside the transfer sleeve. The transfer sleeve may be configured to receive BMG feedstock from outside the vacuum chamber. The vacuum chamber may prevent contamination of a BMG in a molten state. The plunger may push a BMG in a molten state into a mold.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 3, 2015
    Assignee: Crucible Intellectual Property, LLC
    Inventor: Joseph W. Stevick
  • Patent number: 8931543
    Abstract: The invention relates to a die casting piston (20) and a respective support (2). The piston has a wall (21) in which channels for a coolant flow are obtained: this improves the thermal exchange between the piston and the coolant, leading to greater cooling efficiency.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: January 13, 2015
    Assignee: Brondolin S.p.A.
    Inventor: Davide Brondolin
  • Patent number: 8919422
    Abstract: A die casting system includes a die, a shot tube, a melting system and a vacuum system. The die includes a plurality of die components that define a die cavity. The shot tube is in fluid communication with the die cavity and is operable to deliver a charge of material to the die cavity. The melting system is positioned adjacent to the die and includes an alloy loader, a melting unit and a crucible. The vacuum system defines a first chamber and a second chamber separated from the first chamber by an isolation valve. The melting system is disposed within the first chamber, and the die is disposed within the second chamber.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: December 30, 2014
    Assignee: United Technologies Corporation
    Inventors: Mario P. Bochiechio, John Joseph Marcin, Carl R. Verner, John F. Blondin, Mark F. Bartholomew, Raymond P. Ristau, Kevin W. Chittenden, Gary M. Tamiso, Robert C. Renaud, Dennis M. Kraemer, Robert E. LeBrun, Paul R. Zamjohn, Charles A. Roohr, Kerry Kozaczuk, Roy A. Garrison, Steven J. Bullied
  • Publication number: 20140360695
    Abstract: Various embodiments provide apparatus and methods for injection molding. In one embodiment, a constraining plunger may be configured in-line with an injection plunger to transfer a molten material from a melt zone and into a mold. The constraining and injection plungers are configured to constrain the molten material there-between while moving. The constrained molten material can be controlled to have an optimum surface area to volume ratio to provide minimized heat loss during the injection molding process. The system can be configured in a longitudinal direction (e.g., horizontally) for movement between the melt zone and mold along a longitudinal axis. A molded bulk amorphous object can be ejected from the mold.
    Type: Application
    Filed: August 25, 2014
    Publication date: December 11, 2014
    Inventors: Theodore A. Waniuk, Joseph Stevick, Sean O'Keeffe, Dermot J. Stratton, Joseph C. Poole, Matthew S. Scott, Christopher D. Prest
  • Publication number: 20140352907
    Abstract: A die casting apparatus (100) for amorphous alloy comprises a stationary die (1) and a movable die (2); a sealed cabin (4) difining a sealing chamber (40); a protecting gas supplying device connected with the sealed cabin (4) for supplying the protecting gas into the sealing chamber (40); a melting device (5) for receiving and melting amorphous alloy; a feed sleeve (6) having a molten material inlet (60), with a plunger (7) positioned therein for injecting the molted amorphous alloy from the melting device (5) into a die chamber via the molten material inlet (60); a driving device (8) connected with the plunger (7) for driving the plunger (7) in the feed sleeve (6); and a gas purifying device (10) communicated with the sealed cabin (4) for purifying the gas from the sealed cabin (4).
    Type: Application
    Filed: December 13, 2012
    Publication date: December 4, 2014
    Inventor: Faliang Zhang
  • Publication number: 20140284019
    Abstract: Disclosed is an injection molding system including a plunger rod and a melt zone that are provided in-line and on a horizontal axis. The plunger rod is moved in a horizontal direction through the melt zone to move molten material into a mold. The melt zone can have a vessel that is configured to receive the plunger therethrough. A transfer sleeve provided between the vessel and the mold and/or an inlet into a mold can also be horizontally in line with the plunger. The injection molding system can perform the melting and molding processes under a vacuum.
    Type: Application
    Filed: September 30, 2011
    Publication date: September 25, 2014
    Inventors: John Kang, Sean Timothy O'Keeffe, Tran Quoc Pham, Michael Blaine Deming, Theodore Andrew Waniuk
  • Publication number: 20140262111
    Abstract: Described herein is a plunger of an injection molding machine, comprising a plunger body; a plunger tip that is a separate element from the plunger body and comprises an end surface configured to directly contact a molten material used in injection molding in the injection molding machine; wherein thermal conductance across the end surface of the plunger tip may be adjustable by moving the plunger tip relative to the plunger body such that temperature of the plunger tip may be adjusted during injection molding. When this plunger is used to injection molding of a BMG, it allows reduction of formation of crystalline phases near the plunger tip and allows replacement of the plunger tip without replacement of the plunger body.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Crucible Intellectual Property, LLC
    Inventor: Crucible Intellectual Property, LLC
  • Patent number: 8826968
    Abstract: Exemplary embodiments described herein relate to methods and systems for casting metal alloys into articles such as BMG articles. In one embodiment, processes involved for storing, pre-treating, alloying, melting, injecting, molding, etc. can be combined as desired and conducted in different chambers. During these processes, each chamber can be independently, separately controlled to have desired chamber environment, e.g., under vacuum, in an inert gas environment, or open to the surrounding environment. Due to the flexible, independent control of each chamber, the casting cycle time can be reduced and the production throughput can be increased. Contaminations of the molten materials and thus the final products are reduced or eliminated.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: September 9, 2014
    Assignee: Apple Inc.
    Inventors: Theodore A. Waniuk, Joseph Stevick, Sean O'Keeffe, Dermot J. Stratton, Joseph C. Poole, Matthew S. Scott, Christopher D. Prest
  • Patent number: 8826965
    Abstract: A high-vacuum die-casting method includes an injecting step of moving a plunger in a sleeve so that a molten metal fed to the sleeve is pushed by the plunger to be injected into a cavity formed by a fixed mold and a movable mold, a cavity vacuumizing step of vacuum absorbing a gas in the cavity to discharge the vacuum-absorbed gas to the outside through a first path, and a sealed space vacuumizing step of vacuum absorbing a gas in a sealed space in which an eject plate and one ends of eject pins are arranged to discharge the vacuum-absorbed gas to the outside through a second path while the injecting step is performed. The sealed space vacuumizing step is started prior to the cavity vacuumizing step.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: September 9, 2014
    Assignee: Dongnam Precision Co., Ltd.
    Inventors: Yong Hyun Kim, Deak Soo Kim, Joo Yul Park
  • Patent number: 8813817
    Abstract: Various embodiments provide systems and methods for casting amorphous alloys. Exemplary casting system may include an insertable and rotatable vessel configured in a non-movable induction heating structure for melting amorphous alloys to form molten materials in the vessel. While the molten materials remain heated, the vessel may be rotated to pour the molten materials into a casting device for casting them into articles.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: August 26, 2014
    Assignee: Apple Inc.
    Inventors: Theodore A. Waniuk, Joseph Stevick, Sean O'Keeffe, Dermot J. Stratton, Joseph C. Poole, Matthew S. Scott, Christopher D. Prest
  • Patent number: 8813818
    Abstract: Various embodiments provide apparatus and methods for injection molding. In one embodiment, a constraining plunger may be configured in-line with an injection plunger to transfer a molten material from a melt zone and into a mold. The constraining and injection plungers are configured to constrain the molten material there-between while moving. The constrained molten material can be controlled to have an optimum surface area to volume ratio to provide minimized heat loss during the injection molding process. The system can be configured in a longitudinal direction (e.g., horizontally) for movement between the melt zone and mold along a longitudinal axis. A molded bulk amorphous object can be ejected from the mold.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: August 26, 2014
    Assignees: Apple Inc., Crucible Intellectual Property, LLC
    Inventors: Theodore A. Waniuk, Joseph Stevick, Sean O'Keeffe, Dermot J. Stratton, Joseph C. Poole, Matthew S. Scott, Christopher D. Prest
  • Patent number: 8813816
    Abstract: Various embodiments provide apparatus and methods for melting and introducing alloy feedstock for molding by using a hollow branch having a constraint mechanism therein. In one embodiment, a hollow branch can extend upward from a cold chamber that is substantially horizontally configured. The hollow branch including a constraint mechanism can be capable of containing an alloy feedstock for melting into the molten alloy in the hollow branch and introducing the molten alloy to the cold chamber for molding.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: August 26, 2014
    Assignees: Apple Inc., Crucible Intellectual Property, LLC
    Inventors: Theodore A. Waniuk, Joseph Stevick, Sean O'Keeffe, Dermot J. Stratton, Joseph C. Poole, Matthew S. Scott, Christopher D. Prest
  • Patent number: 8813815
    Abstract: The invention relates to a vacuum die-casting system and a method for operating a vacuum die-casting system.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: August 26, 2014
    Assignee: KSM Castings Group GmbH
    Inventors: Michael Werner, Thomas Zwirner, Juergen Hofmeister, Roman Kaczmarczyk
  • Patent number: 8807200
    Abstract: The invention is provided with a first injection electric motor used for low-speed injection and increasing pressure, a second injection electric motor used for high-speed injection, first and second power transmission mechanisms for transmitting rotary motion of the injection electric motors to a screw shaft, first and second clutch mechanisms provided in the power transmission mechanisms, an injection plunger advanced and withdrawn integrally with respect to a nut threaded on the screw shaft, and a controller for controlling the driving of the injection electric motors and the clutch mechanisms. The controller starts the second injection electric motor from a stopped state before the point in time where the high-speed injection step is to commence; and switches the second clutch mechanism from a disengaged state to an engaged state at the point in time where the high-speed injection step is to commence, or at a requisite timing prior thereto.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: August 19, 2014
    Assignee: Toyo Machinery & Metal Co., Ltd.
    Inventor: Yoshihisa Nakatsuka
  • Patent number: 8757243
    Abstract: A method for controlling a temperature of a portion of a die casting system having a shot tube plunger, according to an exemplary aspect of the present disclosure includes, among other things, communicating a fluid through a fluid inlet of a fluid passageway of a thermal control scheme of the shot tube plunger. The fluid circulates through the fluid passageway of the thermal control scheme to selectively adjust a temperature of the shot tube plunger. The fluid is discharged through a fluid outlet of the fluid passageway.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: June 24, 2014
    Assignee: United Technologies Corporation
    Inventors: Mario P. Bochiechio, Mark F. Bartholomew, Carl R. Verner, John F. Blondin
  • Patent number: 8733423
    Abstract: Metal alloy injection molding techniques are described. In one or more implementations, these techniques may also include adjustment of injection pressure, configuration of runners, and/or use of vacuum pressure, and so on to encourage flow of the metal alloy through a mold. Techniques are also described that utilize protrusions to counteract thermal expansion and subsequent contraction of the metal alloy upon cooling. Further, techniques are described in which a radius of edges of a feature is configured to encourage flow and reduce voids. A variety of other techniques are also described herein.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: May 27, 2014
    Assignee: Microsoft Corporation
    Inventors: Paul C. Bornemann, Raj N. Master, Michael Joseph Lane, Seah Sun Too
  • Publication number: 20140102658
    Abstract: The invention relates to a valve device for a pressure injection or die-casting machine, said device comprising a body (18) with a valve chamber (21) including a suction chamber and a control chamber, and a sliding valve (20) mounted in the valve chamber, said sliding valve comprising a first portion (34) with a valve head (44) that co-operates with a valve seat (22) on the body in order to open and close the valve and a second portion (35) comprising a piston (38) mounted in the control chamber (21a). The control chamber is connected to fluid control connections (26a, 26b) in order to exert a pressure on the piston (38) so as to control the opening and closing of the valve. The second valve portion and the first valve portion re aligned on the same axis in the direction of movement of the sliding valve and said first and second portions of the sliding valve can be separated from one another and secured to one another using a removable securing member (36, 36?).
    Type: Application
    Filed: June 1, 2012
    Publication date: April 17, 2014
    Applicant: V.D.S. VACUUM DIECASTING SERVICE S.A.
    Inventors: René Bigger, Christophe Bagnoud
  • Publication number: 20140090799
    Abstract: Various embodiments provide apparatus and methods for injection molding. In one embodiment, a constraining plunger may be configured in-line with an injection plunger to transfer a molten material from a melt zone and into a mold. The constraining and injection plungers are configured to constrain the molten material there-between while moving. The constrained molten material can be controlled to have an optimum surface area to volume ratio to provide minimized heat loss during the injection molding process. The system can be configured in a longitudinal direction (e.g., horizontally) for movement between the melt zone and mold along a longitudinal axis. A molded bulk amorphous object can be ejected from the mold.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Inventors: Theodore A. Waniuk, Joseph Stevick, Sean O' Keeffe, Dermot J. Stratton, Joseph C. Poole, Matthew S. Scott, Christopher D. Prest