Abstract: According to some aspects, a method is provided of casting an object from a mold, the method comprising obtaining a mold comprising a hollow shell of rigid material, the material comprising a thermoset polymer having a plurality of pores formed therein, providing a metal and/or ceramic slurry into an interior of the mold, exposing at least part of the mold to a low pressure environment so that a net flow of gas is produced from the interior of the mold into the low pressure environment. According to some aspects, a method of forming a porous mold is provided. According to some aspects, a photocurable liquid composition is provided, comprising a liquid photopolymer resin, particles of a solid material, in an amount between 30% and 60% by volume of the composition, and a water-soluble liquid.

Abstract: Methods of pressure assisted melt infiltration of fiber preforms are provided. The fiber preform is provided inside of a pressure vessel. The pressure vessel projects into a molten material contained in a crucible. The pressure vessel has an opening located below a surface of the molten material through which the molten material enters the pressure vessel. An end of the fiber preform contacts the molten material within the pressure vessel. The pressure vessel and crucible are located in a furnace. The molten material is pulled within the pressure vessel by increasing a first pressure at a first port of the furnace so the first pressure is higher than a second pressure at a second port of the pressure vessel. The second port is located above the molten material located within the pressure vessel. The fiber preform is infiltrated with the molten material.

Abstract: A platform structure for an electric vehicle is proposed. More particularly, according to the platform structure for an electric vehicle, a frame configured by coupling pipes to each other to form a lattice structure is installed to have a vertical double structure, and each pipe constituting an upper frame and each pipe constituting a lower frame intersect with each other such that rigidity of the platform structure is secured and the manufacturing period thereof due to easy manufacturing is decreased to reduce manufacturing cost. The platform structure for an electric vehicle includes a frame of the platform structure configured in such a manner that pipes are coupled to each other by brackets to form a lattice structure.

Abstract: In a method for the production of a cooling plate from a material having thermal conductivity, a workpiece in the form of a flat material blank with uniform material thickness is placed into a tool. The workpiece is pressed in a first stage by an inner punch of the tool to form in cooperation with pin forming openings of the tool pins upon an effective surface swept by the coolant, as the workpiece is held down by an outer punch of the tool, such that the pins protrude approximately perpendicular over a base area of the workpiece. In a second stage, the workpiece is pressed by the outer punch such as to form an essentially radially extending, flat peripheral edge of reduced material thickness in surrounding relation to the pins, as the workpiece with the formed pins is held down by the inner punch of the tool.

Abstract: A body for a vehicle includes a first member provided at a lower portion of a front floor module extending to a front of a second member provided at a center floor module, and a third member provided at a lower portion of a rear floor module extending to a rear of the second member provided at the center floor module to form a main load path along the first, second, and third members extending from a foremost end of the vehicle to a hindmost end of the vehicle.

Abstract: A micro-strand transceiver device heat dissipation system includes a transceiver device chassis, at least one transceiver component located in the transceiver device chassis, and micro-strand heat dissipator elements that are each positioned in the transceiver device chassis in a spaced apart orientation from the others of the micro-strand heat dissipator elements. Each of the micro-strand heat dissipator elements include a first micro-strand heat dissipator element portion that engages the at least one transceiver component, and a second micro-strand heat dissipator element portion that extends from the at least one transceiver component. The first micro-strand heat dissipator element portion on each of the micro-strand heat dissipator elements conducts heat generated by the at least one transceiver component to the second micro-strand heat dissipator element portion on that micro-strand heat dissipator element, which allows that heat to be dissipated.

Abstract: A vehicle assembly can include a vehicle body structure, a front seat, a rear seat, and a grab bar assembly. The vehicle body structure can define a passenger area. The front seat can be mounted to the vehicle body structure. The rear seat can be mounted to the vehicle body structure. The grab bar assembly can be mounted to the vehicle body structure. The grab bar assembly can include a grab bar, a spacer bar and a cover assembly. The grab bar can extend across the passenger area. The spacer bar can be attached to the grab bar, with a first gap formed between the spacer bar and the front seat, and a second gap formed between the spacer bar and the grab bar. The cover assembly can be attached to the spacer bar and positioned in the first gap.

Abstract: A connection structure of a vehicle body includes a roof side rail member extending in a longitudinal direction of the vehicle body, a roof rear cross member extending in a transverse direction of the vehicle body, and having an end coupled to the roof side rail member, a rear pillar member extending in a vertical direction of the vehicle body, and having an upper portion coupled to the roof side rail member and aligned with the end of the roof rear cross member, wherein the upper portion of the rear pillar member and the roof side rail member are coupled to each other by an insertion protrusion and an insertion groove, and a cover bracket covering a portion where the roof side rail member, the roof rear cross member, and the rear pillar member are connected to each other.

Abstract: A connection structure of a vehicle body includes a roof side rail member extending in a longitudinal direction of the vehicle body, a roof rear cross member extending in a transverse direction of the vehicle body, and having an end coupled to a rear end of the roof side rail member, a rear pillar member extending in a vertical direction of the vehicle body, and having an upper portion connected to the rear end of the roof side rail member and aligned with the end of the roof rear cross member, and a cover bracket covering a portion where the rear end of the roof side rail member, the end of the roof rear cross member, and the upper portion of the rear pillar member are connected to each other, the cover bracket configured to be integrated with the portion in a single body.

Abstract: A counter gravity casting apparatus includes a reusable metal mold having a plurality of mold cavities, a feed tube configured to feed molten alloy into the mold, and a vacuum fitting configured to permit a vacuum to be applied to the mold. The mold includes multiple metal sections configured such that adjacent metal sections mate to one another, the metal sections being separable from one another. The metal sections include recesses that form the mold cavities, and the mold includes a sprue and multiple runner passages. The sprue is configured to receive molten alloy from the feed tube, and the multiple runner passages are configured to feed molten alloy from the sprue to the mold cavities. Methods of casting bulk amorphous alloy articles or feedstock is described.

Abstract: Connections between nodes and tubes are provided. An apparatus can include additively manufactured first and second nodes, a tube, and an interconnect connecting the tube to the first and second nodes. An apparatus can include a node having an end portion with inner and outer concentric portions forming an annular gap therebetween, and a tube having an end portion extending into the gap.

Abstract: Provided is a method for producing a heat sink that can easily and effectively form a heat radiating film on the surface of a substrate without requiring enormous heat energy for increasing the temperature of the substrate. The method is a method for producing a heat sink having a substrate and a heat radiating film formed on the surface of the substrate, including a first step of casting a substrate by injecting molten metal into a cavity of molding dies; and a second step of applying a heat radiating coating to the substrate through spraying or dropping in the period from when the molding dies are opened after the casting until when the temperature of the substrate that has been cast becomes lower than the deposition temperature that is a temperature necessary to deposit the heat radiating coating on the substrate.

Abstract: Connections between nodes and tubes are provided. An apparatus can include additively manufactured first and second nodes, a tube, and an interconnect connecting the tube to the first and second nodes. An apparatus can include a node having an end portion with inner and outer concentric portions forming an annular gap therebetween, and a tube having an end portion extending into the gap.

Abstract: A suspension member and a method for manufacturing the same are provided by which it is possible to manufacture the suspension member at a low cost without decreasing rigidity thereof while also suppressing strain at joining portions. The present invention is a method for manufacturing a suspension member (100) provided with: a pair of side members (40), and a cross member (10) linking the pair of side members and including an upper member (11) and a lower member (21) extending in a lateral direction of a vehicle and provided with base portions (12 and 22) and raised portions (15, 16, 25, and 26).

Abstract: A space frame for a machine is disclosed. The space frame may have a first end configured to be connected to front wheels of the machine. The space frame may also have a second end configured to be connected to rear wheels of the machine. Further, the space frame may have primary structural members arranged substantially lengthwise between the first end and the second end. In addition, the space frame may have secondary structural members connected between the primary structural members to form substantially triangulated structures allowing the space frame to support a payload to empty vehicle weight ratio ranging from about 1.2:1 to 2:1.

Abstract: A cutting tool having a metallic glass thin film (MGTF) coated thereon, a metallic glass cutting tool, and methods of fabricating the same are disclosed. The cutting tool having metallic glass thin film coated thereon comprises: a cutting element having a sharpened portion, and the cutting element is made of metal; and a metallic glass thin film coated on the cutting element, and the metallic glass is represented by the following formula 1 or formula 2, (ZraCubNicAld)100-xSix,??[formula 1] wherein 45=<a=<75, 25=<b=<35, 5=<c=<15, 5=<d=<15, 0.1=<x=<10, (ZreCufAggAlh)100-ySiy,??[formula 2] 35=<e=<55, 35=<f=<55, 5=<g=<15, 5=<h=<15, 0.1=<y=<10. The metallic glass cutting tool of the present invention comprises: a cutting element having a sharpened portion, and the cutting element is made of a metallic glass represented by the above formula 1 or formula 2.

Abstract: A method for producing a metal ingot using a mold which includes a mold cavity defined by an ingot mold, a core and a bottom arranged inside a vacuum-cast enclosure including a portion for introducing molten metal at the upper portion thereof. A portion for receiving and distributing molten metal, which is suitable for receiving the molten steel introduced into the vacuum-cast enclosure and for redistributing the molten metal in the mold cavity, is arranged at the upper portion of the mold cavity. The molten metal is introduced into the enclosure to form a first jet of molten steel under a vacuum, to pour the molten metal over the portion and to form at least one second jet of molten steel under a vacuum, which originates with the portion and terminates in the mold cavity to fill the mold cavity with molten metal.

Abstract: A bulk metallic glass forming alloy having the following composition x(aZr bHf cM dNb eO) yCu zAI and its preparation from an alloy L=(aZr bHf cM dNb eO), Cu, and Al as well as the use thereof is described.

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.

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.

Abstract: A casting method and a casting device for a cast-metal object which are inexpensive and have a high degree of freedom are provided to cast plural types of cast-metal objects simultaneously. A cast-metal object is cast by using a casting device (10) including a mold structure (5) for forming a casting space capable of filling molten metal; and a runner (1) provided separately from the mold structure (5) for supplying molten metal into the casting space in the mold structure (5) by connecting the runner to the mold structure (5), wherein the runner (1) has a dividable structure, and the mold structure (5) has an assembly structure of a plurality of members.

Abstract: A method of manufacturing a motor rotor includes a preparing step, a pre-heating step and a molding step. The preparing step includes preparing multiple silicon-steel sheets, a shaft, a mold and a molten copper liquid. The pre-heating step includes stacking the silicon-steel sheets and mounting the stacked silicon-steel sheets around the shaft and pre-heating the silicon-steel sheets to a specific temperature. The molding step includes mounting the silicon-steel sheets and the shaft into the mold, heating the silicon-steel sheets, the shaft and the mold, drawing air out of the mold to a vacuum status, injecting the molten copper liquid into the mold, sucking the molten copper liquid and filling up the mold with the molten copper liquid, cooling the mold to form a copper ring around the silicon-steel sheets, getting the shaft and the silicon-steel sheets with the copper ring out of the mold and separating the shaft from the silicon-steel sheets to form a motor rotor.

Abstract: A method of casting including coating at least a portion of a mold with a non-porous coating, placing the mold in a chamber capable of inducing pressure, and applying pressure to the chamber to press material into a cavity in the mold. Another method of casting including coating at least a portion of a mold with a non-porous coating, placing a first fill tube in a material, applying a vacuum to a second fill tube to establish a vacuum within the non-porous coating, and allowing atmospheric pressure to inject the material into the mold without placing the mold in a chamber capable of inducing pressure.

Abstract: In said method, the mold (1), which includes a mold cavity (3A) defined by an ingot mold (2), a core (4) and a bottom (27), is arranged inside a vacuum-cast enclosure (5) including a means (9) of introducing molten metal at the upper portion thereof. A means (11A, 11?) for receiving and distributing molten metal, which is suitable for receiving the molten steel introduced into the vacuum-cast enclosure (5) and for redistributing the molten metal in the mold cavity (3A), is arranged at the upper portion of the mold cavity (3A). The molten metal is introduced into the enclosure (5) so as to form a first jet of molten steel (50) under a vacuum, in order to pour the molten metal over the receiving and distributing means (11A, 11?) and to form at least one second jet of molten steel (52) under a vacuum, which originates with the receiving and distributing means (11A, 11?) and terminates in the mold cavity (3A) so as to fill the mold cavity (3A) with molten metal.

Abstract: A method and a device for admixture of powder in a liquid, whereby the method comprises that the liquid in a supply (14), influenced by underpressure in a crucible (12) to which the liquid is to be transferred, flows through a drain tube (6) out of the supply (14), the powder is dosed from a powder receptacle (1) and is driven by a gas, and the mixture of powder and gas is added to the liquid in the drain tube (6) and mixed therewith, whereupon the mixture flows into the crucible (12). The device comprises a supply (14) from which the liquid may flow and a receptacle (1) with powder, whereby a drain tube (6) connects the supply (14) with a receiving receptacle (12) which can be held at an inner underpressure. A device (4) for supply of a driving gas for the powder is connected to a mixing chamber (3) at an outlet from the powder receptacle (1), while the mixing chamber (3) is connected to the drain tube (6) for supply of powder to the liquid flowing in the drain tube.

Abstract: A steering knuckle for a vehicle includes a metal body having a first portion defining a bore therethrough and a second portion extending longitudinally from said first portion. The steering knuckle also includes a ceramic insert disposed with the first portion and the second portion and surrounding the bore. A method of forming the steering knuckle includes disposing the ceramic insert within a cavity of a mold, sufficiently filling the cavity with a molten metal to contact and envelop the ceramic insert with the molten metal, and solidifying the molten metal so as to surround the ceramic insert with the metal body to thereby form the steering knuckle.

Abstract: A method and system of forming a micro-wire including heating metal feedstock to a liquid state within a glass tube, wherein the metal feedstock includes an iron based glass forming alloy comprising one or more of nickel and cobalt present in the range of 7 atomic percent to 50 atomic percent and one or more of boron, carbon, silicon, phosphorous and nitrogen present in the range of 1 to 35 atomic percent. Negative pressure may be provided to the interior the glass tube and the glass tube containing the metal feedstock may be drawn down. The metal feedstock in the glass tube may be cooled at a rate sufficient to form a wire exhibiting crystalline microstructures present in the range of 2 to 90 percent by volume in a glass matrix.

Abstract: The invention concerns a production of precision castings by centrifugal casting, comprising the following steps: a) providing a centrifugal casting device having a rotor (1) being rotatable around an axis (A), and at least one crucible (8) being accommodated in the rotor (1) and at least one mold (4) being associated with said crucible (8) and being accommodated in a first radial distance (r1) from the axis (A), b) creating a metal melt (15) within the crucible (8), c) rotating the rotor (1) and thereby forcing the melt (15) by means of centrifugal forces from the crucible (8) into the mold (4), d) exerting a pressure on the melt (15) being forced into the mold (4) until the temperature of the solidifying melt (15) has reached a predetermined cooling-temperature in a range of 1300° to 800° C., wherein the pressure corresponds to the centrifugal force acting on the melt (15) at the moment when the mold (4) is completely filled times a factor of 1.0 to 5.

Abstract: A quiescent melt handling system includes a melting furnace and a holding furnace communicating with the melting furnace for holding a molten metal melt. The holding furnace has a relatively large surface area and a relatively shallow depth, having a width to depth ratio in the range of 4-100 to 1. Also provided is structure in the holding furnace for separating inclusions from the melt in the holding furnace. A mold communicates with the holding furnace. A counter gravity casting system, which might comprise a vacuum assisted casting system, draws the melt into the mold.

Abstract: A casting method and apparatus are provided capable of producing high-quality castings having extremely few defects attributable to entrainment of gas, oxide film and the like both economically and while conserving energy. Namely, a sealing plate having a seal, an opening and a pressure reduction vent is arranged between a gate of a die cavity and a feeding tube, and the die cavity is depressurized by sealing the gate. Next, the inside of the feeding tube is depressurized through the pressure reduction vent provided in the lower surface of the sealing plate to suck a molten metal, the opening of the sealing plate is moved to between the gate and the feeding tube when the molten metal has entered the pressure reduction vent, and the molten metal is filled into the die cavity due to the pressure difference between the die cavity and the molten metal in the feeding tube. A consumable seal made of a material similar to the molten metal can also be used for the gate seal.

Abstract: The invention relates to an improved vacuum die-casting, in particular for metals and metal alloys which contain Al, Mg, Zn, and Cu. In order to improve the quality of the components, it is proposed to produce vacuum in the mold cavity and the casting chamber cavity in several phases of the die-casting process. The use of the new method is contemplated for both cold-chamber and hot-chamber die-casting.

Abstract: An offset mold process deflects a mold assembly being conveyed along a first path laterally of that path into engagement with a nozzle using a shuttle car. Molten metal is pumped into the mold assembly, which is either a cope and drag mold or a lost foam mold, from below the molded part to eliminate eddy currents which can create incongruities in the molded part. One method of flow cutoff involves movement of a first mold component relative to the bottom board cuts off the flow of molten metal and locks the mold fill in the mold assembly. A second method of flow shutoff usable in the lost foam process involves the engagement of a flow cutoff plunger to cut the flow stream once filling the mold has been completed. In both the cope and drag and lost foam apparatuses, withdrawal of the shuttle car enables molten metal in the feed line to drain into a catch ladle obviating the need to burn embedded sand from the scrap prior to its recycling into the melt.

Abstract: Countergravity casting of metals and metal alloys provides for melting of the metallic material under subambient pressure, evacuation of a gas permeable or impermeable mold under subambient pressure, and controlled, rapid filling of the mold while it is maintained under the subambient pressure by applying gas pressure locally on the molten metallic material in a sealed space defined by engagement of a mold base and a melting vessel with a seal therebetween. The gas pressure applied locally in the sealed space establishes a differential pressure on the molten metallic material to force it upwardly through the fill tube into the mold.

Abstract: A method of casting a metal article comprising the steps of forming a mold having a mold cavity with a height, a thinwall portion and a base wall portion. The thinwall portion may be less than 0.05 inches thick and free of gating. The method comprises the steps of: positioning the mold in a preheated furnace so that the furnace substantially surrounds the mold and so that a longitudinal axis of the long thin portion of the mold cavity is in an upright orientation; heating the mold in the furnace to a temperature between 1045° C. and 1055° C.; and drawing a vacuum in the furnace. The metal is heated until it is molten and is then poured at a temperature between 1560° land 1570° C. into the mold cavity. The vacuum is then broken and the mold cavity withdrawn from the furnace. The molten metal is allowed to solidify in the mold cavity so that it will solidify with a equiaxed grain structure.

Abstract: Method and apparatus for countergravity casting a plurality of articles wherein a ceramic mold is provided having an upstanding riser passage and a plurality of mold cavities disposed along a length of the riser passage at different elevations, each mold cavity communicating to the riser passage via a gate passage, wherein molten metal is forced to flow upwardly from a source into the riser passage for supply to the mold cavities via their gate passages, wherein the mold is rotated so that molten metal that resides in the gate passages is subjected to centrifugal force in a direction toward the mold cavities, and wherein molten metal in the riser passage is drained to empty the riser passage before molten metal in the mold cavities and the gate passages solidifies, leaving the gate passages at least partially filled with molten metal for supply to the mold cavities in response to shrinkage as molten metal therein solidifies while the container is rotated.

Abstract: A gravity pour vacuum casting method and apparatus providing uniform set-up provisions for gas permeable molds regardless of mold size, shape, or mold type employed in accordance with the present invention. Apparatus includes a sprue-forming device that when combined with a disposable foundry patter and subsequently invested together as a unit forms a gas permeable mold in accordance with the present invention, and further includes a vacuum chamber configured to match corresponding counterparts of said sprue-forming device.

Abstract: A vaporizable refractory coated pattern assembly is formed having a sprue connected to a plurality of thin wall patterns of articles to be cast. The pattern assembly is supported in a refractory particulate media in an open bottom container that is evacuated to subambient pressure and rotated in a manner to distribute particulates to regions of the refractory coated patterns not yet directly contacted by particulates. The pattern assembly is comprised of relatively dense foam plastic pattern material that imparts increased strength to the thin wall patterns. The sprue includes a vent passage that communicates to a particulate media to vent pattern decomposition vapors thereto in a manner that enables faster replacement of the pattern assembly in the media, despite the use of the relatively dense pattern material.

Abstract: Placed in a box (1) is a ceramic shell (21) delimiting a casting space (22), the shell being surrounded by a mass of binder-free sand (23). The casting space is connected to a source (4) of liquid metal located underneath, in which are applied, in succession, a pressure (P1) bringing the liquid to the threshold of the casting space (22), a pressure (P2) slightly greater than that necessary for filling this space, and then a marked overpressure (P3); finally, the pressure is brought back down to the first value (P1). When the casting space has been filled, an underpressure is created in the space containing the mass of sand (23) in order to prevent any deformation of the shell (21) due to the overpressure (P3), at least until the formation of a metal skin against the shell and at most until the start of the reduction in the overpressure in the source (4) of liquid metal.

Abstract: The first suction port is formed between a side die and the peripheral protrusion of an upper die. A release pin insertion hole is formed at the peripheral protrusion of the upper die which forms the upper end portion of the cavity. A release pin is inserted into the release pin insertion hole. The second suction port is formed between the insertion hole and the pin. Alternatively, a plurality of vent holes having permeable sintered metal arranged are formed instead of the release pin to serve as the second suction port. The suction negative pressure of the second suction port is set higher than that of the first suction port. High negative pressure from the second suction port inhibits air from remaining on the low temperature surface portion of the upper die.

Abstract: In order to increase casting production during a filling of a mold from below, whereby an uptake for the casting mass is provided in the molding sand of the mold, immediately after the filling of the mold has been concluded a part of the uptake, which part extends in the molding sand, is interrupted and thus closed off so that the mold can be immediately separated from the casting container.

Abstract: A molding method for bicycle metal frame, including the steps of: pouring a fixed amount of molten metal into a reservoir with the relatively light oxide membrane floating on the upper surface of the clean and pure molten metal, the male and female molds being mated to define a bicycle frame mold cavity which is vacuumized through a vacuum path, then by way of high pressure filling, the clean and pure molten metal being filled into the mold cavity through a mold flow way, then the molten metal quickly passing through the mold flow way to flow and distribute over the vacuumized bicycle frame mold cavity and spilling back flow tank defined by the mated male and female molds by way of drawing out the mold core, then, immediately the molten metal being abruptly cooled through several cooling pipelines defined by the mated male and female molds to pattern the molten metal into a bicycle frame with polished surface without pore; demolding the male and female molds to take out the bicycle frame which is blown by win

Abstract: A composite material having less than about 25 volume percent refractory particles in a metal matrix is concentrated to have about 37-45 volume percent refractory particles. The concentrating is accomplished by heating the composite material to melt the matrix, and then contacting the molten composite material to a porous element having an average pore size greater than that of the average particle size. A small pressure differential, on the order of about one atmosphere, is applied across the porous element, so that metal matrix material separates from the composite material and flows through the porous element. The particulate volume fraction in the composite material gradually increases. When the particulate volume fraction exceeds about 37 volume percent, the mass of composite material becomes semi-solid and freestanding. The resulting composite material may be further processed, as by forming to a useful shape or diluting with another matrix material.

Abstract: A melt filling pressure difference control method controls a pressure difference used to supply melt from a holding furnace to a cavity of a casting machine by generating a pressure difference between an interior space of holding furnace and the cavity formed inside the mold. The method includes the steps of setting up a program pattern comprising time-varying characteristics of pressure difference target values, controlling the pressure difference so as to follow the program pattern that was set up, detecting whether the melt surface has risen to a predetermined level inside the cavity, compensating the program pattern based on the melt surface level when the melt surface has risen to a predetermined level inside cavity, and controlling the pressure difference between space inside the holding furnace and the cavity so as to follow the compensated program pattern.

Abstract: A vacuum die casting system has three die casting machines connected to a single vacuum system, all of which is controlled by a programmable logic controller. The controller allows any two of the machines to be operatively connected to the vacuum system so that the casting operation of those two machines are performed under vacuum. The controller comprises six address relays, a sixteen channel input card, a processor, a sixteen channel output card, an interface and two high speed counter cards. The result is an efficient, reliable, and economical vacuum die casting system.

Abstract: A mold having a supply tube in a lower portion and in which has been placed a fibrous preform, is placed in a container. A crucible filled with magnesium blocks is placed under the mold. The magnesium is heated and the mold is preheated under vacuum until the fusion of the magnesium starts. The tube is then introduced into the magnesium and a neutral gas circulation is set up in the container, under a vacuum insufficient to trigger the evaporation of magnesium. After its complete fusion, the magnesium is transferred into the mold by a rapid pressurization of the container. The mold is then cooled and the part removed from the mold.

Abstract: Disclosed is a method and apparatus for a metal melt, especially steel, into a vertically oscillating mold via a tundish or intermediate vessel provided with an immersion nozzle to generate endless strands, especially thin strands of steel wherein the intermediate vessel has an open first chamber and a closed second chamber. The metal melt is supplied from the casting ladle to the first open chamber. The second chamber is connected with a vacuum device. An immersion pipe, which projects into the mold and which can be vertically oscillated, is provided in the base of the second chamber.

Abstract: A method and apparatus for producing a formed article of amorphous alloy by a simple process are disclosed. A molding apparatus comprises a forced cooling casting mold which is provided with a sprue and at least one molding cavity communicating with the sprue and further with a cutting member disposed in the casting mold movably in the direction of the sprue, a melting vessel movable in the direction of the sprue, and a molten metal transferring member disposed slidably in the melting vessel or the molding cavity of the casting mold.

Abstract: A process of making a heat-sinking structure, which includes providing a mold having cavities closed at one end and open at another end, the cavities corresponding to the heat dissipating surfaces on the heat-sinking structure, at least partially evacuating ambient gases from the cavities by applying a vacuum to the open end of the cavities, filling the mold with molten material when the mold is substantially evacuated by introducing the thermally conductive material into the mold at the open end of the cavities, and solidifying the thermally conductive material in the mold and removing the resultant molded heat-sinking structure. A combination electromagnetic interference filter and electrical socket assembly is also provided that includes an electromagnetic interference filter, at least one conductive, single-piece, electrical terminal blade passing through the electromagnetic interference filter, and a block of electrically insulating material.

Abstract: Squeeze casting of high integrity, near net shape castings is performed in a mould cavity defined by cooperating die parts which are movable with respect to each other and have a separation distance which is selected to define a predetermined cavity volume for the cast article. A conduit has a first end connected to an entrance in the lower die part of the mould cavity and a second end connected to a receptacle which contains molten metal. Molten metal is transferred upwardly from the receptacle through the conduit to fill or substantially fill the mould cavity. The entrance to the mould cavity is sealed, and pressure is applied on the die parts to further reduce the cavity volume during solidification of the metal in the mould cavity.

Abstract: The investment casting method uses the lost wax method and involves using a model to form a wax piece in the desired shape such as the shape of the snap element or the shape of two hinge halves, making a tree out of a multitude of the wax pieces, adding slurry and heating to create hard material having spaces shaped like the wax parts and then pouring molten casting material into the spaces in a vacuum environment.