By Compacting Material Against Shaping Surface Patents (Class 164/37)
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Patent number: 11554411Abstract: A casting mold making apparatus and a method employing a tank with a pour hole formed at a bottom wall of the tank and an opening section open toward the opposite side to a bottom wall side. A first process of the method includes stirring component materials inside the tank with a stirring impeller so as to make a foam mixture while an opening section side of the tank is closed and the pour hole is closed. The second process is performed after the first process and includes opening the pour hole, pressing the tank against a mold such that a fill hole formed so as to pass into the mold is disposed adjacent to the pour hole, and supplying compressed air into the tank while stirring the foam mixture inside the tank with the stirring impeller so as to fill the foam mixture into a cavity of the mold.Type: GrantFiled: March 5, 2018Date of Patent: January 17, 2023Assignee: Sintokogio, Ltd.Inventors: Yusuke Kato, Tomohiro Aoki
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Patent number: 10421116Abstract: A method of casting valve seat inserts comprises pouring molten metal into a gating system of a mold plate stack wherein mold plates are located between top and bottom molds wherein the gating system includes a casting header, down-sprue, horizontal sprue, up-sprues, runners, and gates in fluid communication with mold cavities configured to form the valve seat inserts. The method includes filling the mold cavities with the molten metal, and controlling solidification of the molten metal in the mold cavities by means of an outer thermal barrier which retards heat transfer in mold plate material between the mold cavities and an outer periphery of the mold plate stack. An inner thermal barrier can be used to further control solidification of the molten metal. Valve seat inserts produced using the thermal jacket molds can exhibit an improved microhardness distribution which provides improved machining and higher yield.Type: GrantFiled: July 5, 2017Date of Patent: September 24, 2019Assignee: L.E. Jones CompanyInventors: Cong Yue Qiao, David M Doll, Donald K Morris, Howard Delorme, Jr.
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Patent number: 9269933Abstract: In a gasket sealing a gap between two opposed surfaces, the gasket is constructed by a tabular main body portion, two lip-like projections which are provided in one surface of the main body portion, and extend in parallel to each other along the main body portion, two small projections which are provided in the other surface of the main body portion and extend in parallel to each other along the main body portion, through holes which are provided at a plurality of positions of the main body portion, and an annular seal portion which is provided in such a manner as to surround the through holes. Accordingly, it is possible to have a good installation property of the gasket and a good stability (seating property) after the installation, and the gasket can be compressed highly by a low reaction force, and has a high reliability.Type: GrantFiled: November 22, 2011Date of Patent: February 23, 2016Assignee: NOK CorporationInventor: Hiroki Yamamoto
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Patent number: 9022093Abstract: A method of casting a semi-liquid or semi-solid iron-based alloy, the method including: applying, to a part or to the whole of an uppermost surface of an inner surface of a die, a lubricating die-release agent in which particles including at least one selected from molybdenum disulfide, graphite, tungsten disulfide, boron nitride, chrome oxide and boric oxide are dispersed in a solvent; and thereafter casting by using the die.Type: GrantFiled: June 15, 2009Date of Patent: May 5, 2015Assignee: Nippon Steel & Sumitomo CorporationInventor: Yoshiaki Shia
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Publication number: 20150072163Abstract: A ceramic core includes sintered ceramic powder and a hole opening on a surface of the ceramic core and having an opening portion with a maximum size of 100 ?m or less. A manufacturing method for a ceramic core includes: preparing an injection molding composition by mixing ceramic powder and a binder; manufacturing a ceramic compact by performing the injection molding of the injection molding composition; and manufacturing a ceramic core by sintering the ceramic compact, wherein cumulative percentage of coarse powder with a particle diameter of more than 50 ?m included in the ceramic powder is 30% or less on an integrated volume particle size distribution curve of the ceramic powder.Type: ApplicationFiled: September 2, 2014Publication date: March 12, 2015Inventor: Hideko FUKUSHIMA
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Patent number: 8967229Abstract: An evaporative pattern casting method is taught which does not reduce accuracy of an evaporative pattern. The evaporative pattern casting method comprises a part manufacturing process (S2), an assembly process (S4), a sand mold manufacturing process (S6), a molten metal pouring process (S8) and a sand removal process (S12). In the part manufacturing process, the evaporative pattern is manufactured as a plurality of separate parts. In the assembly process, the parts are assembled on a work plane. In the sand mold manufacturing process, the evaporative pattern is covered with sand to form a sand mold without moving the assembled evaporative pattern from the work plane. In the molten metal pouring process, molten metal is poured into the sand mold. In the sand removal process, the sand is removed after the molten metal has solidified.Type: GrantFiled: January 28, 2011Date of Patent: March 3, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Susumu Okabe, Masanori Sato, Masashi Takahashi, Tsuyoshi Nanba
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Patent number: 8956148Abstract: The invention relates to a mote molding machine which comprises a molding chamber (3), a front plate (1) closing the molding chamber at a front end and a rear plate (2) closing the molding chamber (3) at a rear end, opposite the front end. The plates shift gradually during the mote compression and extraction phases. The machine comprises a first shifting system for shifting the front plate and which comprises at least one first electric motor (4), and a second shifting system for shifting the rear plate and which comprises at least one second electric motor (5).Type: GrantFiled: February 10, 2011Date of Patent: February 17, 2015Assignee: Loramendi, S. CoopInventors: Francisco Javier Calvo Poza, Cesar Marco Serrano, Borja Garcia Villar, Mikel Bikandi Bikandi, Ruben Melchor Figueroa
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Patent number: 8869872Abstract: A method of forming a mold for use in the casting of a steel railway freight car truck component is provided. A cope mold is formed by providing a near net shape oversize impression of a cope pattern of a product to be cast in a flask. A cope pattern of the product to be cast is then placed on the flask forming a spacing between the cope pattern and the oversize impression. A resin coated sand is then blown to form a sand layer between the oversized impression in the flask and the cope pattern. The resin sand is set to form a mold of a thickness between the oversized impression in the flask and the cope pattern of the product to be cast. The drag mold is formed in a similar manner.Type: GrantFiled: May 7, 2014Date of Patent: October 28, 2014Assignee: Amsted Rail Company, Inc.Inventors: Tony Bauer, Thomas Callahan
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Publication number: 20140284015Abstract: By mixing, stirring and kneading, with water glass (11) as a binder, sand (7), a surfactant (9), and water (10), foamed sand (S) is generated. The foamed sand (S) is packed in a cavity of a metallic mold and solidified to form a sand mold. By using the sand mold, aluminum is cast. By using water glass that is an inorganic binder, during casting, harmful gas and odor are not generated. Further, when a molar ratio n of water glass (Na20 nSiO2 mH2O) is adjusted in the range of 0.65 to 1.30, a quantity of water (H2O) generated by heating water glass with a high temperature melt during casting can be suppressed. Thereby, hydrogen gas (H2) according to a reaction between water (H2O) and aluminum (Al) can be suppressed from being generated and casting quality can be improved.Type: ApplicationFiled: November 27, 2012Publication date: September 25, 2014Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SINTOKOGIO, LTD.Inventors: Masaomi Mitsutake, Hirotsune Watanabe, Tomokazu Suda, Yusuke Kato, Toshihiko Zenpo
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Patent number: 8839844Abstract: A method of forming a mold for use in the casting of a steel railway freight car truck component is provided. A cope mold is formed by providing a near net shape oversize impression of a cope pattern of a product to be cast in a flask. A cope pattern of the product to be cast is then placed on the flask forming a spacing between the cope pattern and the oversize impression. A resin coated sand is then blown to form a sand layer between the oversized impression in the flask and the cope pattern. The resin sand is set to form a mold of a thickness between the oversized impression in the flask and the cope pattern of the product to be cast. The drag mold is formed in a similar manner.Type: GrantFiled: May 7, 2014Date of Patent: September 23, 2014Assignee: Amsted Rail Company, Inc.Inventors: Tony Bauer, Thomas Callahan
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Patent number: 8839843Abstract: A method of forming a mold for use in the casting of a steel railway freight car truck component is provided. A cope mold is formed by providing a near net shape oversize impression of a cope pattern of a product to be cast in a flask. A cope pattern of the product to be cast is then placed on the flask forming a spacing between the cope pattern and the oversize impression. A resin coated sand is then blown to form a sand layer between the oversized impression in the flask and the cope pattern. The resin sand is set to form a mold of a thickness between the oversized impression in the flask and the cope pattern of the product to be cast. The drag mold is formed in a similar manner.Type: GrantFiled: May 7, 2014Date of Patent: September 23, 2014Assignee: Amsted Rail Company, Inc.Inventors: Tony Bauer, Thomas Callahan
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Patent number: 8813811Abstract: A method of forming a mold for use in the casting of a steel railway freight car truck component is provided. A cope mold is formed by providing a near net shape oversize impression of a cope pattern of a product to be cast in a flask. A cope pattern of the product to be cast is then placed on the flask forming a spacing between the cope pattern and the oversize impression. A resin coated sand is then blown to form a sand layer between the oversized impression in the flask and the cope pattern. The resin sand is set to form a mold of a thickness between the oversized impression in the flask and the cope pattern of the product to be cast. The drag mold is formed in a similar manner.Type: GrantFiled: March 13, 2013Date of Patent: August 26, 2014Assignee: Amsted Rail Company, Inc.Inventors: Tony Bauer, Thomas Callahan
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Patent number: 8813810Abstract: A method of forming a mold for use in the casting of a steel railway freight car truck component is provided. A cope mold is formed by providing a near net shape oversize impression of a cope pattern of a product to be cast in a flask. A cope pattern of the product to be cast is then placed on the flask forming a spacing between the cope pattern and the oversize impression. A resin coated sand is then blown to form a sand layer between the oversized impression in the flask and the cope pattern. The resin sand is set to form a mold of a thickness between the oversized impression in the flask and the cope pattern of the product to be cast. The drag mold is formed in a similar manner.Type: GrantFiled: March 13, 2013Date of Patent: August 26, 2014Assignee: Amsted Rail Company, Inc.Inventors: Tony Bauer, Thomas Callahan
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Publication number: 20140116636Abstract: The core sand filling device includes the core box, a blow head which is placed below the core box so as to move up and down in a relative manner to the core box and divided into a sand blowing chamber and a sand storage chamber that are communicatively connected to each other, a compressed air supply unit which is communicatively connected to the sand storage chamber and supplies compressed air into the sand storage chamber, an aeration air supply unit which is communicatively connected to the sand blowing chamber and supplies into the sand blowing chamber aeration air for suspending and fluidizing core sand inside the sand blowing chamber, and an exhaust valve which is communicatively connected to the sand blowing chamber and exhausts compressed air remaining in the sand blowing chamber.Type: ApplicationFiled: May 18, 2012Publication date: May 1, 2014Applicant: SINTOKOGIO, LTD.Inventors: Shigeyoshi Kato, Shuichi Tsuzuki, Hisashi Harada
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Publication number: 20140110076Abstract: A method of pulsed-air compacting of mold-sand in combination with compacting by compression supplements the pulsed-air compacting of the mold-sand by an operation of re-compacting the mold-sand by pressing which is performed with the pattern plate containing the patterns by the plate moving inside the cavity of the filling frame in the direction of the latticed pressing element which is subjected to a counter-pressure force corresponding in its value to the prescribed level of the half mold compaction. The method is realized with a device in which the pattern plate containing the patterns is mounted with the possibility of a reciprocal motion inside the cavity of the filling frame, and the pressing cylinder is mounted with the possibility to apply a force against the movable pattern plate.Type: ApplicationFiled: November 22, 2013Publication date: April 24, 2014Applicant: ZAKRYTOE AKTSIONERNOE OBSCHESTVO "LITAFORM"Inventors: Anatoly Alexandrovich VOLKOMICH, Rudolf Rudolfovich LUTTS, Nikolay Ivanovich BEKH
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Publication number: 20140110075Abstract: An arrangement and method in a ram-up machine (1) for moulds (2) for metal casting (10) comprising:—a squeeze plate (3) carrying a first mould pattern (32)—a horizontally movable piston (31) for operating the squeeze plate (3) and a finished mould block (2),—a sand supply system (7)—a swing plate (4) carrying a second mould pattern (42), the swing plate (4) is configured to be translatorily movable in a horizontal direction to a released position (4r) and further to be pivotable upwardly to a sidestep position (4s),—a feeder element insertion configuration (50) wherein one or plurality of feeder elements (5) are configured to be attached to the second mould pattern (42) when during operation the swing plate (4) carrying the second mould pattern (42) is pivoted to the sidestep position (4s).Type: ApplicationFiled: June 13, 2011Publication date: April 24, 2014Applicant: COMPONENTA OYJInventors: Seppo Paalanen, Arto Rautakoski
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Publication number: 20140079582Abstract: We describe a lattice part made of metal and a method for producing a lattice part made of metal or a metal alloy. The lattice has a thickness of less than 1 mm at a size of the gaps of less than 50 mm2. The lattice (5) comprises a connection made of knots, and perpendicular to the lattice surface has lattice bars and lattice knots of the same thickness. A method for the production of a lattice part made of metal, particularly made of light alloy, is characterized by a primary shaping process according to DIN 8580, wherein a mold is formed in the first step, a primary material is introduced in the mold cavity in the second step, the part is removed from the mold in the third step, and the finishing of the metallic lattice part is carried out in the fourth step.Type: ApplicationFiled: November 19, 2013Publication date: March 20, 2014Applicant: AIT AUSTRIAN INSTITUTE OF TECHNOLOGY GMBHInventors: RUDOLF ZAUNER, FRANZ RIEMELMOSER, MANFRED BAMMER
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Patent number: 8636049Abstract: To provide a method and a machine for forming flaskless molds with a shortened cycle time even if many cores are placed, to thereby achieve efficient molding.Type: GrantFiled: February 28, 2011Date of Patent: January 28, 2014Assignee: Sintokogio, Ltd.Inventors: Toshihiko Oya, Kazunori Ogura
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Patent number: 8622113Abstract: A method and apparatus for directionally controlled rapid solidification of a molten metal casting provides modified mold flasks containing mold media defining a mold cavity into which molten metal is poured and thereafter solidified. The mold media is fluid permeable and electrically and thermally conductive so that coolants passing through the media conduct heat away from the molten metal to promote solidification. Apparatus carried upon and within the mold flask allow controlled application of coolants to dissipate heat in a controlled manner to promote solidification in a controlled direction. Ports defined in the flasks, spaces between the mold media particulates and coolant, directionally applied by a movable cooling ring provide controlled directional cooling and castings having improved mechanical characteristics, with greater speed and increased efficiency.Type: GrantFiled: September 16, 2012Date of Patent: January 7, 2014Inventor: Charles B. Rau, III
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Publication number: 20130299115Abstract: A process for manufacturing a salt core to be introduced into a foundry mold by casting of parts made of aluminum, aluminum alloy, or light alloys obtained according to casting operations in order to form a foundry preform. The core is a salt powder and undergoes for its shaping an isostatic compression of the salt powder. The core obtained with the desired shapes is then introduced into the foundry mold to make the form to be obtained, and the shape resulting from the foundry operation is a preform including the salt powder core obtained by isostatic compression. The preform is then forged with its core at a pressure ranging between 600 and 700 MPa to obtain the final form of the product to be obtained, and the core subsequently removed.Type: ApplicationFiled: December 19, 2011Publication date: November 14, 2013Applicant: SAINT JEAN INDUSTRIESInventor: Romain Epale
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Patent number: 8567478Abstract: The purpose of this invention is to provide a method for making upper and lower molds and an apparatus therefor that can prevent the resulting molds from being warped and match-plates from being broken. The method of this invention comprises the step of holding a match-plate 1 between cope and drag flasks 2 and 3, inserting upper and lower squeezing means 4 and 5 into the respective openings of the cope and drag flasks 2 and 3, which openings are opposite to the match-plate 1, so as to define upper and lower molding spaces, supplying molding sand to the upper and lower molding spaces, and then causing the upper and lower squeezing means 4 and 5 to move forward to the match-plate 1 so as to squeeze the molding sand and make upper and lower molds, wherein during the step of causing the upper and lower squeezing means to move forward to the match-plate the difference between the squeezing pressures of the upper and lower molding spaces is kept within a predetermined tolerance.Type: GrantFiled: October 9, 2012Date of Patent: October 29, 2013Assignee: Sintokogio, Ltd.Inventors: Minoru Hirata, Yutaka Hadano, Tsutomu Seki
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Publication number: 20130264022Abstract: The invention relates to a method for producing a cylinder (10, 110) for a two-stroke engine, comprising the following steps: producing a casting core (30, 130), wherein a central core slide (31, 131) for the cylinder chamber (11, 111) and at least one salt core (33, 133) for an overflow channel (18, 19; 118, 119) are produced and the at least one salt core (33, 133) is connected to the central core slide (31, 131), inserting the casting core (30, 130) into a casting mold, casting the cylinder (10, 110) in a die-casting process, removing the central core slide (31, 131) from the cylinder (10, 110), wherein the at least one salt core (33, 133) is separated from the central core slide (31, 131), and flushing the at least one salt core (33, 133) out of the cylinder (10, 110). The invention further relates to a casting core (30, 130) for such a method.Type: ApplicationFiled: July 5, 2011Publication date: October 10, 2013Applicant: MAHLE INTERNATIONAL GMBHInventors: Guenther Mayer, Juergen Schwarz, Torsten Eil
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Publication number: 20130118702Abstract: To provide a method and a machine for forming flaskless molds with a shortened cycle time even if many cores are placed, to thereby achieve efficient molding.Type: ApplicationFiled: February 28, 2011Publication date: May 16, 2013Inventors: Toshihiko Oya, Kazunori Ogura
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Patent number: 8347946Abstract: The present invention provides a flaskless molding machine that can use a matching plate of different thicknesses. The flaskless molding machine has two molding flasks that have a matching plate sandwiched between them, the two molding flasks being positioned in a way such that one of opening ends of the molding flasks is opposed to each other and each of the other opening ends of the molding flasks is engaged with a squeezing board, and a pair of spaces is formed, into which spaces molding sand is filled by air through each of the openings for introducing the molding sand, disposed on a wall of each of the two molding flasks that are opposed to each other, the flaskless molding machine thus constituted being able to mold two molds by squeezing the molding sand with the squeezing boards.Type: GrantFiled: July 17, 2012Date of Patent: January 8, 2013Assignee: Sintokogio, Ltd.Inventors: Yutaka Hadano, Takayuki Komiyama, Shuji Takasu
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Patent number: 8316918Abstract: The present invention provides a flaskless molding machine that can use a matching plate of different thicknesses. The flaskless molding machine has two molding flasks that have a matching plate sandwiched between them, the two molding flasks being positioned in a way such that one of opening ends of the molding flasks is opposed to each other and each of the other opening ends of the molding flasks is engaged with a squeezing board, and a pair of spaces is formed, into which spaces molding sand is filled by air through each of the openings for introducing the molding sand, disposed on a wall of each of the two molding flasks that are opposed to each other, the flaskless molding machine thus constituted being able to mold two molds by squeezing the molding sand with the squeezing boards.Type: GrantFiled: March 31, 2010Date of Patent: November 27, 2012Assignee: Sintokogio, Ltd.Inventors: Yutaka Hadano, Takayuki Komiyama, Shuji Takasu
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Publication number: 20120241117Abstract: Disclosed is a molding machine for simultaneously making upper and lower molds with cope and drag flasks, a matchplate, upper and lower squeezing boards, and a lower filling frame. This machine also includes a cylinder for raising and lowering the lower squeezing board, a driving mechanism that includes pneumatic and hydraulic piping systems for driving the cylinder using an air-on-oil system, and a controller for controlling the driving mechanism. The drag flask, the matchplate, the filling frame, and the lower board define a lower molding space, while the matchplate, the upper board, and the cope flask define an upper molding space such that the controller controls the driving mechanism to drive the cylinder at a low pressure. The lower squeezing board is raised to squeeze the molding sand for simultaneously making the two molds such that the controller controls the driving mechanism to drive the cylinder at a high pressure.Type: ApplicationFiled: July 20, 2010Publication date: September 27, 2012Inventors: Yutaka Hadano, Takayuki Komiyama, Shuji Takasu, Shuichi Ide, Takuya Nitta
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Patent number: 8011415Abstract: A flaskless molding apparatus for an upper and a lower mold that can produce molds comprised of molding sand with a substantially uniform density.Type: GrantFiled: May 30, 2006Date of Patent: September 6, 2011Assignee: Sintokogio, Ltd.Inventors: Minoru Hirata, Takayuki Komiyama
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Publication number: 20110091660Abstract: A carrier material to be used as a placeholder for structuring workpieces having at least one vacuity is disclosed, said carrier material comprising a corrodible material, the corrodible material being a mixture or an alloy of magnesium and at least one additional metal component, the standard electrode potential of which is larger than that of magnesium under reaction conditions, wherein the material was compacted by a mechanically stressing method.Type: ApplicationFiled: April 16, 2008Publication date: April 21, 2011Applicant: HERMLE MASCHINENBAU GMBHInventor: Markus Dirscherl
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Publication number: 20100319870Abstract: A rare earth-based core for use in the casting of a reactive metal is described. The core contains a ceramic composition which includes at least about 10% by weight of monoclinic rare earth aluminate (RE4Al2O9), wherein RE represents at least one rare earth element; and at least about 10% by weight of at least one free rare earth oxide. The ceramic phase of the composition may include a microstructure which comprises a multitude of substantially spherical pores which are formed as a result of the removal of aluminum metal from the core composition during a heat treatment step. Additional embodiments relate to a method for the fabrication of a ceramic core, employing a rare earth oxide, aluminum metal, and a binder. Methods for removing cores from a cast part are also described.Type: ApplicationFiled: August 27, 2010Publication date: December 23, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Bernard Patrick Bewlay, Stephen Francis Bancheri, Frederic Joseph Klug
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Publication number: 20100269998Abstract: A composition for use in producing a foundry mold. The composition has a binder, which may include a smectite clay. The composition also has a modifier, which may include a metal carbonate. The composition also includes a foundry sand.Type: ApplicationFiled: February 2, 2009Publication date: October 28, 2010Inventors: Charles Landis, Thomas Anderson, Eric Frantz, Don Dell, Matthew Hilfiger
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Publication number: 20100252221Abstract: A sand-forming apparatus (10) comprising a box (20), a blow tube assembly (50) and a bonnet (90). The box (20) has a cope (30) and a drag (40) which together define a cavity (21) having a shape corresponding to a desired sand-shape. The blow tube assembly (50) comprises a blowplate (55), and at least one tube (50). The bonnet (90) may be fixed to and movable with the blowplate (55). Relative movement between the cope (30), the blowplate (55) and/or the bonnet (90) converts the apparatus (10) between a sand-blowing state and a catalyst-introducing state.Type: ApplicationFiled: June 6, 2008Publication date: October 7, 2010Inventors: Gerald B. Senk, Steven J. Sigl
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Publication number: 20100155009Abstract: The purpose of this invention is to provide a method for making upper and lower molds and an apparatus therefor that can prevent the resulting molds from being warped and match-plates from being broken. The method of this invention comprises the step of holding a match-plate 1 between cope and drag flasks 2 and 3, inserting upper and lower squeezing means 4 and 5 into the respective openings of the cope and drag flasks 2 and 3, which openings are opposite to the match-plate 1, so as to define upper and lower molding spaces, supplying molding sand to the upper and lower molding spaces, and then causing the upper and lower squeezing means 4 and 5 to move forward to the match-plate 1 so as to squeeze the molding sand and make upper and lower molds, wherein during the step of causing the upper and lower squeezing means to move forward to the match-plate the difference between the squeezing pressures of the upper and lower molding spaces is kept within a predetermined tolerance.Type: ApplicationFiled: August 8, 2006Publication date: June 24, 2010Inventors: Minoru Hirata, Yutaka Hadano, Tsutomu Seki
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Publication number: 20100126687Abstract: An integer cored craftwork of lorry with swing bolster and sideframe includes: a baroque top mold (11) being located exactly from above to below as sand on the surface of core box being finished to blow. The top mold (11) is pressed for being buckled on the surface of blowing sand, then a definite journey of pressure quantity is finished downwards, so that the locally even surface of blowing sand is extruded to be a curved shape up to the mustard according to the shape of the baroque top mold (11). Finally the integer core forming a integrate lumen section of a cast is finished. It provides a slick surface of integer core while improving the inherent quality of cast and easing the work intension.Type: ApplicationFiled: March 6, 2008Publication date: May 27, 2010Applicant: CSR MEISHAN ROLLING STOCK CO., LTD,Inventors: Yundong Wang, Wuyi Xu, Zhu Li, Xiaoming Yang, Youping Liu, Zhicheng Wang, Chengyong Liu, Minggao Qing, Yonghong Yuan
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Publication number: 20100049301Abstract: We describe a lattice part made of metal and a method for producing a lattice part made of metal or a metal alloy. The lattice has a thickness of less than 1 mm at a size of the gaps of less than 50 mm2. The lattice comprises a connection made of knots, and perpendicular to the lattice surface has lattice bars and lattice knots of the same thickness. A method for the production of a lattice part made of metal, particularly made of light alloy, is characterized by a primary shaping process according to DIN 8580, wherein a mold is formed in the first step, a primary material is introduced in the mold cavity in the second step, the part is removed from the mold in the third step, and the finishing of the metallic lattice part is carried out in the fourth step.Type: ApplicationFiled: February 12, 2008Publication date: February 25, 2010Applicant: AUSTRIAN RESEARCH CENTERS GMBH - ARCInventors: Rudolf Zauner, Franz Riemelmoser, Manfred Bammer
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Publication number: 20100025002Abstract: A method for producing a casting die by simple work without requiring any high work skill in which the working days required for producing the casting die can be shortened greatly. A die model suitably employed in this production method, an NC processing system and a processing robot are also provided.Type: ApplicationFiled: September 19, 2007Publication date: February 4, 2010Inventors: Seiji Omata, Toshio Iwasawa
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Publication number: 20090229780Abstract: A cast metal article, such as a turbine engine component, is made by shaping a body of refractory metal particles to form a molded refractory metal article. The molded refractory metal article is sintered to form a refractory metal core. Both the refractory metal article and a setter block may be sintered at the same time. At least a portion of the refractory metal core is enclosed with wax. The wax is at least partially enclosed with a covering of mold material. The wax is removed from the mold material to form an article mold cavity. The article mold cavity is filled with molten metal which solidifies to form a cast metal article. The refractory metal core is removed from the cast metal article.Type: ApplicationFiled: March 12, 2008Publication date: September 17, 2009Inventors: Richard Albert Skelley, JR., Richard Lee Kreske
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Publication number: 20090160092Abstract: A mold assembly for sand casting is disclosed. The mold assembly includes a drag having a first vertical axis and a first surface. The first surface extends generally perpendicular to the first vertical axis. The mold assembly also includes a cope having a second vertical axis positioned on the first surface such that the first vertical axis and the second vertical axis coincide to form a central vertical axis. The cope includes a second surface and a third surface both extending generally perpendicular to the second vertical axis. The mold assembly also includes a casting cavity disposed about the central vertical axis and located between the first surface and the second surface, and a core disposed about the central vertical axis and positioned in the casting cavity. The mold cavity further includes a pouring cup disposed about the second vertical axis and extending downward from the third surface to the casting cavity.Type: ApplicationFiled: December 20, 2007Publication date: June 25, 2009Inventor: David Brian Jahnz
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Patent number: 7480984Abstract: A method of applying a physical barrier to suppress thermal decomposition near a surface of a thermoelectric material including applying a continuous metal foil to a predetermined portion of the surface of the thermoelectric material, physically binding the continuous metal foil to the surface of the thermoelectric material using a binding member, and heating in a predetermined atmosphere the applied and physically bound continuous metal foil and the thermoelectric material to a sufficient temperature in order to promote bonding between the continuous metal foil and the surface of the thermoelectric material. The continuous metal foil forms a physical barrier to enclose a predetermined portion of the surface. Thermal decomposition is suppressed at the surface of the thermoelectric material enclosed by the physical barrier when the thermoelectric element is in operation.Type: GrantFiled: June 7, 2004Date of Patent: January 27, 2009Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jeffrey S. Sakamoto, Thierry Caillat, Jean-Pierre Fleurial, G. Jeffrey Snyder
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Publication number: 20080169083Abstract: A sand-introducing device that uses air for introducing molding sand in a molding space or spaces is provided. The device is provided with air-permeable partitioning plates that define a double-walled structure together with the wall of the body of the device. The air-permeable partitioning plates are easily produced, they can easily inject pressurized air of a desired pressure, and they will not need regular maintenance. The body of the device, which acts as a pressure tank, defines a double-walled structure together with the air-permeable partitioning plates (10, 11), thereby defining chambers (12, 13). In the sand-introducing device that uses air, while molding sand is fluidized by pressurized air injected from the air-permeable partitioning plates, it is introduced in a molding space. Each air-permeable partitioning plate is made of a porous resin or metal.Type: ApplicationFiled: July 30, 2007Publication date: July 17, 2008Inventors: Hisashi Harada, Takuya Nitta, Takashi Hanai, Minoru Hirata, Kozo Sugita, Toshihiko Oya
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Patent number: 7293598Abstract: An engine block mold, including at least one barrel slab core (10), the or each barrel slab core (10) including a slab portion (12), and at least one barrel portion (14) adapted to receive a cylinder liner (1), wherein the barrel portion (14) of the or each barrel slab core (10) has an outer diametral taper along at least a portion of its length, and the or each liner (1) has a substantially matching internal diametral taper along at least a portion of its length. Inserting the or each slab barrel core (10) with the or each liner (1) disposed upon it, into a substantially completed mold casing, filling the mold, and then machining the cylinder liners (1) so that they have a substantially constant internal diameter along their length.Type: GrantFiled: July 15, 2004Date of Patent: November 13, 2007Assignee: Equipment Merchants International Inc.Inventor: Robert J. Bend
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Patent number: 7237593Abstract: In a molding machine, foundry sand thrown into a molding space defined by a pattern plate and flask members is compressed in two steps. Namely, in the first step a lower subsidiary flask is stationary while in the second step the flask is movable. The pattern carrier molding machine comprises a molding base, flask-setting cylinders, a lift-support frame, and a segment-squeeze sand hopper. The auxiliary flask 62 of the compact pattern-plate carrier is installed movably up and down through a plurality of upward oil cylinders 63,63 that are expanded/contracted via special oil cylinders 64,65 operated by outside cylinders 68,69.Type: GrantFiled: October 21, 2004Date of Patent: July 3, 2007Assignee: Sintokogio, Ltd.Inventors: Kimikazu Kaneto, Minoru Hirata, Yutaka Hadano
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Patent number: 6805819Abstract: A cylindrical concrete receiver 10 is caused to project from a top section 3 of a body section 11 forming a frame 2. When concrete 5 is filled in the body section 11, part of the concrete 5 is caused to overflow inside the concrete receiver 10 and then, pressure is applied to the concrete 5 overflowed in the concrete receiver 10 by a weight 12.Type: GrantFiled: September 9, 2002Date of Patent: October 19, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Eiji Tsuyuki, Koujiyu Matsumoto, Noriaki Tamasaki
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Patent number: 6749003Abstract: A method for introducing and compacting molding sand S in a mold space defined by a pattern plate (10a), a lower auxiliary frame (16b), a flask (18), a filling frame (20), and multi-segmented squeeze feet (36a). First, the molding sand S is introduced into the mold space. The squeeze feet (36a) are then lowered to apply a first squeeze to the mold sand S in the mold space under a condition wherein at least the lower frame (16a) cannot be lowered. The squeeze feet (36a) are then lowered to apply a second squeeze to the mold sand S in the mold space under a condition wherein the lower frame (16a), the flask (18), and the filling frame (20) can be lowered.Type: GrantFiled: December 12, 2001Date of Patent: June 15, 2004Assignee: Sintokogio, Ltd.Inventors: Kimikazu Kaneto, Minoru Hirata, Yutaka Hadano
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Patent number: 6684933Abstract: A method for compacting molding sand in a mold space defined by a pattern plate, which is fixed in a horizontal position when the molding sand is compacted, a leveling frame disposed for vertical sliding movement around the outer periphery of the pattern plate, a frame member disposed for vertical movement above the leveling frame, and a filling frame disposed for vertical movement above the frame member. The method comprises the steps of feeding molding sand into the mold space, primarily compacting the molding sand in the mold space from above by compacting means while at least the leveling frame is being set so that it cannot be lowered, and secondarily compacting the molding sand in the mold space from above by the compacting means while the leveling frame, the frame member, and the filling frame are set so that these elements can be lowered.Type: GrantFiled: March 15, 2002Date of Patent: February 3, 2004Assignee: Sintokogio Ltd.Inventors: Kimikazu Kaneto, Minoru Hirata, Yutaka Hadano, Tsuyoshi Sakai
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Patent number: 6662855Abstract: A sand hopper (28) is provided at its lower position (40) with a plurality of nozzles (42) and a plurality of squeeze feet (46), the pressure of which is controlled, and which are located adjacent to a side of each squeeze foot. The sand hopper (28) is supported by supporting means (22, 26) such that it can move vertically. A mold space is defined by a pattern plate having a pattern (74a), a flask (4), a filling frame (52), and a sand hopper (28) having a plurality of squeeze feet (46) disposed above the filling frame (52). By discharging molding sand from the nozzles (42), it is introduced into the mold space. The mold sand (S2) in the mold space is compacted by the squeeze feet by lowering the sand hopper toward the mold space. Since the molding machine is so arranged, both introducing molding sand into a mold space and compacting the introduced molding sand are performed at one station (a molding-sand introducing and compacting station).Type: GrantFiled: August 21, 2001Date of Patent: December 16, 2003Assignee: Sintokogio, Ltd.Inventors: Kimikazu Kaneto, Minoru Hirata, Yutaka Hadano
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Publication number: 20030141031Abstract: The present invention is directed to processes for forming styrenic polymers, and their related end uses. In particular, the present invention is directed to processes for preparing patterns for use in metal castings.Type: ApplicationFiled: December 17, 2002Publication date: July 31, 2003Inventor: Fred Sonnenberg
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Publication number: 20030098137Abstract: In the molding machine of this invention, foundry sand thrown into a molding space defined by a pattern plate and flask members is compressed in two steps. Namely, in the first step a lower subsidiary flask is stationary while in the second step the flask is movable. The pattern carrier molding machine of this invention comprises a molding base, flask-setting cylinders, a lift-support frame, and a segment-squeeze sand hopper. The auxiliary flask 62 of the compact pattern-plate carrier with an auxiliary flask of this invention is installed movably up and down through a plurality of upward oil cylinders 63,63 that are expanded/contracted via special oil cylinders 64,65 operated by outside cylinders 68,69.Type: ApplicationFiled: December 20, 2001Publication date: May 29, 2003Inventors: Kimikazu Kaneto, Minoru Hirata, Yutaka Hadano
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Patent number: 6470953Abstract: A method and system using a molding apparatus with frames by which the amount of molding sand that overflows the molding apparatus and that must be taken out of a mold that is prepared by a molding operation is minimized, and by which the density of the mold within a frame is substantially uniform. The molding sand filling cavity is defined by a pattern plate, a molding frame that can be put on the pattern plate, a filling frame that can be put on the molding frame, and a covering apparatus having a plurality of squeezing feet. The squeezing feet can enter the filling frame and can be temporarily held at certain positions where certain distances are kept between the lower ends of the squeezing feet and surfaces of the patterns on the pattern plate that are opposed to the lower ends. Molding sand is supplied to the molding sand filling cavity. Then, the molding sand is compressed by the squeezing feet.Type: GrantFiled: May 15, 2000Date of Patent: October 29, 2002Assignee: Singtokogio, Ltd.Inventors: Minoru Hirata, Yutaka Hadano
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Patent number: 6458297Abstract: Method for producing pressure die-cast or injection moulded articles having a unit for producing salt grains, a press for forming salt filler cores by compressing the said salt grains, a pressure die-casting machine for making the said articles by injecting a material in the liquid state into a mould having at least one salt filler core, and a salt removal and washing unit designed to remove the salt filler cores that have been trapped within the said articles; the said unit for producing salt grains being designed to atomize a saline solution which is supersaturated with salt into a plurality of drops so as subsequently to cause the salt present in solution/suspension in each drop of solution to solidify into a corresponding salt grain.Type: GrantFiled: October 13, 1998Date of Patent: October 1, 2002Assignee: Magneti Marelli S.p.A.Inventor: Renzo Moschini
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Publication number: 20020129917Abstract: A method for compacting molding sand in a mold space defined by a pattern plate, which is fixed in a horizontal position when the molding sand is compacted, a leveling frame disposed for vertical sliding movement around the outer periphery of the pattern plate, a frame member disposed for vertical movement above the leveling frame, and a filling frame disposed for vertical movement above the frame member. The method comprises the steps of feeding molding sand into the mold space, primarily compacting the molding sand in the mold space from above by compacting means while at least the leveling frame is being set so that it cannot be lowered, and secondarily compacting the molding sand in the mold space from above by the compacting means while the leveling frame, the frame member, and the filling frame are set so that these elements can be lowered.Type: ApplicationFiled: March 15, 2002Publication date: September 19, 2002Applicant: SINTOKOGIO, LTD.Inventors: Kimikazu Kaneto, Minoru Hirata, Yutaka Hadano, Tsuyoshi Sakai