序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
61 DIE-CASTING SYSTEM WITH A REFRACTORY METAL ALLOY SURFACE US14682411 2015-04-09 US20160296997A1 2016-10-13 LIM YUAN KWANG; TAN YONG SHENG ANDREW; MUHAMMAD AZZLI BIN MAHMOOD; LOH YAN SENG
A die-casting mold, includes a die insert including a mold surface with a refractory metal alloy layer and a method of manufacturing a die-casting mold, including machining a mold surface of a die insert such that the mold surface is a near net shape with respect to a workpiece and applying a refractory metal alloy layer onto the die insert.
62 Airfoil cooling enhancement and method of making the same US13454180 2012-04-24 US09243502B2 2016-01-26 JinQuan Xu
An airfoil includes a body that includes leading and trailing edges joined by spaced apart pressure and suction sides to provide an exterior airfoil surface. A cooling passage is arranged interiorly of the exterior airfoil surface and provides an interior surface. The interior cooling surface includes micro-bumps that protrude from the interior cooling surface into the cooling passage. The micro-bumps are discrete from and noncontiguous relative to one another in multiple directions along the interior cooling surface. The micro-bumps may be provided while forming the airfoil or using correspondingly shaped micro-depressions on an airfoil core.
63 Method of treating surface of mold US14508426 2014-10-07 US09156131B2 2015-10-13 Keiji Mase
Provided is a method of treating a surface of a mold to achieve good demoldability and capable of preventing wearing of the mold by avoiding load concentration on one part of the surface of the mold. After a first blasting is performed on the surface of the mold to remove a hardened layer produced on the surface and/or to adjust the surface roughness, a second blasting is performed to create fine irregularities on the surface. Then, an elastic abrasive in which abrasive grains are carried on an elastic body, or a plate-like abrasive having a planar shape with a maximum length that is 1.5 to 100 times the thickness thereof, is ejected onto the surface of the mold at an inclined ejection angle such that the abrasive is caused to slide along the mold surface to flatten peaks of the irregularities created on the mold surface.
64 Method of treating surface of mold and mold having surface treated by said method US13187918 2011-07-21 US09108298B2 2015-08-18 Keiji Mase
Provided is a method of treating a surface of a mold to achieve good demoldability and capable of preventing wearing of the mold by avoiding load concentration on one part of the surface of the mold. After a first blasting is performed on the surface of the mold to remove a hardened layer produced on the surface and/or to adjust the surface roughness, a second blasting is performed to create fine irregularities on the surface. Then, an elastic abrasive in which abrasive grains are carried on an elastic body, or a plate-like abrasive having a planar shape with a maximum length that is 1.5 to 100 times the thickness thereof, is ejected onto the surface of the mold at an inclined ejection angle such that the abrasive is caused to slide along the mold surface to flatten peaks of the irregularities created on the mold surface.
65 METHOD AND CASTING CORE FOR FORMING A LANDING FOR WELDING A BAFFLE INSERTED IN AN AIRFOIL US12981630 2010-12-30 US20150027657A1 2015-01-29 Tracy A. Propheter-Hinckley
A method and casting core for forming a landing for welding a baffle inserted into an airfoil are disclosed, wherein the baffle landing of the blade or vane is formed in investment casting by the casting core rather than by wax, reducing tolerances and variability in the location of the baffle inserted into the cooling cavity of airfoil when the baffle is welded to the baffle landing.
66 METHOD OF TREATING SURFACE OF MOLD AND MOLD HAVING SURFACE TREATED BY SAID METHOD US14508426 2014-10-07 US20150024660A1 2015-01-22 Keiji MASE
Provided is a method of treating a surface of a mold to achieve good demoldability and capable of preventing wearing of the mold by avoiding load concentration on one part of the surface of the mold. After a first blasting is performed on the surface of the mold to remove a hardened layer produced on the surface and/or to adjust the surface roughness, a second blasting is performed to create fine irregularities on the surface. Then, an elastic abrasive in which abrasive grains are carried on an elastic body, or a plate-like abrasive having a planar shape with a maximum length that is 1.5 to 100 times the thickness thereof, is ejected onto the surface of the mold at an inclined ejection angle such that the abrasive is caused to slide along the mold surface to flatten peaks of the irregularities created on the mold surface.
67 COATING COMPOSITIONS FOR INORGANIC CASTING MOLDS AND CORES AND USE THEREOF AND METHOD FOR SIZING US14348232 2012-10-01 US20140255601A1 2014-09-11 Michael Kloskowski; Peter Wachtarczyk; Carolin Wallenhorst
The invention relates to coating compositions, comprising specific clays, an aqueous carrier fluid and refractory materials in powder form, and to the use thereof for casting molds and cores, in particular those that are produced using water glass as a binder. The invention further relates to a method for producing the sizing agents and for applying same to inorganically bound casting molds and cores.
68 EVAPORATIVE PATTERN FOR MANUFACTURING A MOLD FOR PRESS FORMING US13878247 2011-01-28 US20130292080A1 2013-11-07 Susumu Okabe; Masanori Sato; Masashi Takahashi; Tsuyoshi Nanba
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. According to this casting method, the sand mold is formed without moving the assembled evaporative pattern from the work plane, and consequently the accuracy of the dimensions at the time of assembly can be maintained.
69 AIRFOIL COOLING ENHANCEMENT AND METHOD OF MAKING THE SAME US13454180 2012-04-24 US20130280092A1 2013-10-24 JinQuan Xu
An airfoil includes a body that includes leading and trailing edges joined by spaced apart pressure and suction sides to provide an exterior airfoil surface. A cooling passage is arranged interiorly of the exterior airfoil surface and provides an interior surface. The interior cooling surface includes micro-bumps that protrude from the interior cooling surface into the cooling passage. The micro-bumps are discrete from and noncontiguous relative to one another in multiple directions along the interior cooling surface. The micro-bumps may be provided while forming the airfoil or using correspondingly shaped micro-depressions on an airfoil core.
70 Method, mold, and mold system for forming rotors US12785796 2010-05-24 US08312914B2 2012-11-20 Michael J. Walker; Anil K. Sachdev; Thomas A. Perry; Mark A. Osborne; Paul Boone
A mold for forming a plurality of rotors includes a plurality of lamination stacks, wherein each lamination stack defines at least one void therethrough; a tube having a central longitudinal axis, wherein each lamination stack is concentrically spaced apart from the tube to define a channel therebetween; a plurality of washers each having a shape defined by a first diameter and a second diameter that is greater than the first diameter, wherein each washer is configured to concentrically abut the tube and define a feed conduit interconnecting with the channel; and a shell disposed in contact with each lamination stack and concentrically spaced apart from each washer to define a plurality of ducts, wherein each duct is interconnected with the at least one void of at least one lamination stack. A mold system and a method of forming a plurality of rotors are also described.
71 MOLD BORING METHOD, MOLD BORING TOOL AND MOLD BORING APPARATUS US13305259 2011-11-28 US20120132386A1 2012-05-31 Naoya KAWAMURA; Hiroyuki GOKAKU; Noriyuki MITSUI; Masao IWAMOTO; Hidekazu ASANO; Satomi IMURA
A mold boring apparatus including a mold boring tool having a flow passage formed inside of the mold boring tool which allows a fluid to flow therethrough, having slits and protruding portions formed on an outer peripheral portion of an outer body of a tool blade member of the mold boring tool in a circumferential direction thereof extending from a leading end to a base end of the tool blade member, and blades that are inclined inward and are formed at leading ends of the protruding portions formed between the adjacent slits.
72 PRODUCTION OF MOLDINGS FOR FOUNDRY PURPOSES US12808720 2008-12-19 US20110036528A1 2011-02-17 Christian Goebbert; Michael Hanisch; Volker Hofmann; Frank Meyer; Ralph Nonninger; Henning Rehse; Magnus Jundt; Christian Priebe; Gunther Schaffer
A process for producing a mold includes introducing a composition including a particulate, refractory material and a binder into a hollow model having an interior cavity which determines contours of all surfaces of the mold or a mold part, wherein the model includes at least two separate parts to permit removal of the mold, and applying a second composition containing at least one organosilicon component and at least one solvent to at least one of the separable parts before use.
73 CORE WASH RECIRCULATING TANK SYSTEM US12536533 2009-08-06 US20110030739A1 2011-02-10 Gregory D. Watkins
A core wash tank has a core wash bath compartment (14) for holding core wash (16) into which sand cores can be immersed for treatment and a single overflow compartment (30) separated from the core wash bath compartment by a divider wall (28) that defines an overflow level for core wash in the core wash bath compartment to overflow into the overflow compartment. A core wash recirculation system has a pump (42) for drawing core wash from the overflow compartment and pumping core wash into the core wash bath compartment.
74 Process for producing a casting core, for forming within a cavity intended for cooling purposes US09268722 1999-03-17 US06374898B1 2002-04-23 Konrad Vogeler; Bernhard Weigand; Hans Wettstein
A process for producing a casting core which is used for forming within a casting a cavity intended for cooling purposes, through which a cooling medium can be conducted, the casting core having surface regions in which there is incorporated in a specifically selective manner a surface roughness which transfers itself during the casting operation to surface regions enclosing the cavity and leads to an increase in the heat transfer between the cooling medium and the casting.
75 Method for cleaning or decoring a casting US09527851 2000-03-17 US06361610B1 2002-03-26 Alain Scotto; Jean-Louis Janin
Method for cleaning or decoring a casting, wherein that, separately or in combination: the said casting may be excited by an ultrasonic source of vibration, to allow residual material in contact with the walls of the said casting to become detached, this casting resting on a number of anvils placed on vibrating means supporting the casting and in contact with a number of sonotrodes, the said casting may be beaten at a very low frequency so as to cause large-sized internal residue such as a sand-based core insert to crack up, vibrating means may be used to impart a low-frequency linear vibration to this casting so as to break up and fluidize the cracked bits, the material issuing forth from the said casting may be extracted using a stream of fluid.
76 Process for the preparation of ceramic cores US19334 1987-02-26 US4732204A 1988-03-22 Jacky P. Tabardin
A process is disclosed for the preparation of ceramic cores which includes injection by means of a press of low power of liquid wax into cavities of a ceramic core disposed in a mould of elastomer produced by moulding of a dummy core which is a replica of the core to be produced.
77 Method and apparatus for removing excess material from sand cores US717914 1985-03-29 US4659391A 1987-04-21 Udo Kuehn
A method and apparatus for removing flash and other excess material from sand cores in which the cores are showered with impact particles of relatively soft material and contained in moving air streams issuing from a plurality of nozzles directed against opposite sides of cores being cleaned. Low pressure air from a blower is used at the nozzles to obtain a high density of particles in the moving air stream and provide for engagement of the particles in a gentle manner with the sand cores so as to minimize surface erosion of the cores.
78 Vibration device for the removal of burrs from workpieces constructed as foundry cores or the like US622663 1984-06-20 US4590636A 1986-05-27 Gerhard Wehrmann
There is disclosed a vibration device for de-burring a workpiece, such as a foundry core 13, 22. The device comprises a de-burring tool 10, 25 having an impact surface with a profile which corresponds with the profile of the region of the workpiece which requires de-burring. The impact surface is vibrated in the clearance between the tool and the profile of the workpiece, so as to de-burr the latter. The vibration device provides flaw-free de-burring of workpieces in automated manner (compared with known manual means) and in a short time period.
79 Carbon electrode cleaning system US653689 1984-09-21 US4557009A 1985-12-10 Raymond J. Dill
An electrode cleaning apparatus wherein a carbon electrode is cleaned in a two-step process, the first step being a rough cleaning operation wherein scraper elements scrape the electrode at a first station, and a second step wherein the electrode moves between counter-rotating vertical shafts having flailing elements connected thereto in a second station. The electrode is suspended by a hoist supported on a track which moves the electrode along a path through the first and second stations.
80 Device for grasping and transporting objects and a method for finishing said objects with the aid of such a device US359170 1982-03-17 US4480865A 1984-11-06 Jacques Chamdru
A device for grasping and transporting objects exhibiting at least one pair of flexible pads for grasping an object, said pads mounted facing one another on a common support which is movable relative to the object to be grasped. The pads are inflatable toward one another in such a manner as to maintain an interval between themselves in their non-inflated state slightly greater than the distance separating the two opposing faces of the object or of a relief part of the object, and to clamp the faces of the object between themselves when inflated.
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