Abstract: A pouring method and a pouring plant are described. Mould sections (15) are produced piecewise with cavities at two opposite ends thereof. The mold sections are combined in a line (15A-15D), wherein the cavities define a mold cavity (15a) having an exposed pour cup (30). The line of mold sections is advanced incrementally by drive means (16, 162) through an increment length that corresponds to the length of the mold sections (15), to and through a molding station (50). The true lengths of the produced sections (15) are measured and registered. The difference in length between the first mold section (15D) in the line (15A-15D) that lies immediately upstream of a pour cup (30), where a pouring operation was last carried out, and the last mold section (15A) in the line is calculated.

Abstract: A core is formed and a prefabricated bearing bore is provided. Two separate projections are provided on the core wherein free projection edges of the two separate projections have a respective shaping radius between R=0.sub.mm and R.ltoreq.0.45.sub.mm. Subsequently indentations are produced in a circumferential area of the bearing bore by the two separate projections on the core wherein the indentations serve as fracture notches. The cast engine part is then formed by casting metal around the core using said fraction notches as incipient crack sites.

Abstract: The isolator core cooperates with companion core elements in a casting operation to form a short coolant jacket surrounding the upper portion of each engine cylinder adjacent the air/fuel combustion chamber and an air pocket that surrounds the lower region of the cylinder. Drainback passage core elements may be formed integrally with the isolator core thereby reducing the total number of cores in the casting mold package during a casting operation, the finished casting thereby eliminating dividing walls between the isolator and the oil drain cores thus reducing the number of core elements and reducing the cost and complexity of the casting operation as well as reducing the weight of the finished casting. The isolator core may be used independently of cylinder liners during the casting operation.

Abstract: A method to suppress displacement of the core during casting when making hollow blades by applying the lost wax method using a core. A wax pattern is made which comprises a core and a layer of wax covering the core. Then at least one pin of the same material as the blade is inserted into the wax layer such that this pin engages the core and part of the pin projects from the outer surface of the wax layer, after which, with the portion of the pin which projects from the outer surface of the wax layer being held in a casting mold, the wax is removed, followed by casting.

Abstract: A method of molding a movable block for a rolling motion guide device can effectively prevent the formation of burrs in the rolling member rolling groove and accurately positioning the movable block body in a molding die.The positioning of the movable block body in width, vertical and longitudinal directions is performed at plain surfaces that are different from the rolling member rolling groove, so that damage or injury of the rolling member rolling groove can be prevented. Further, the molding material is shut off at either both end portions or both side peripheries of the rolling member rolling grooves, so that the molding material can be prevented from invading into the rolling member rolling grooves.

Abstract: A process for inserting cores into a casting mold includes inserting a plurality of individual cores into a template; forming a core group by joining together the plurality of individual cores within the template using a bracing and securing device which is detachable; dipping the core group into a founder's black bath to provide a coated core group; drying the coated core group; inserting the core group after drying into the casting mold; and removing the bracing and securing device. The process advantageously additionally includes providing a plurality of core groups that form a core assembly for a casting mold; forming a core set by joining together the plurality of core groups using a bracing and securing device; dipping the core set into a founder's black bath to provide a coated core set; drying the coated core set; inserting the core set after drying into the casting mold; and removing the bracing and securing device.

Abstract: An apparatus and method are provided for continuously injecting molten solder into a plurality of molds for transfer of the formed solder mounds to electronic devices such as multilayer ceramic packages. A conventional injection molding apparatus is employed with a specially designed apparatus for forming the molds and preferably with a specially designed mold to provide a continuous molding process. The apparatus is preferably of a U-shaped configuration whereby molds are advanced under the molten solder reservoir and injection head by a preceding mold in the apparatus. The urging action of the preceding mold on the succeeding mold and, preferably in conjunction with the preferred mold design, enables a continuous method and apparatus for injecting molten solder into a plurality of molds.

Abstract: In a method of integrally attaching a hollow member to a cast product by casting so that the hollow member communicates with a hollow interior of the cast product, a closure member is fitted into an open end of the hollow member so that the open end of the hollow member is closed by the closure member. The closure member projects from a core for forming the hollow interior of the cast product in a direction different from a direction in which the core is drawn out of the cast product. A molten metal is poured into a casting mold after the casting mold has been clamped. The closure member is moved inside the core after solidification of the molten metal so that the closure member is released from the fitting in the hollow member. The core is drawn out of the solidified metal subsequently to the moving step of the closure member.

Abstract: Improvements in the method of making cast metal bolsters for railway trucks are disclosed. The bolster is cast in a mold using a one-piece center core. The center core has a first end inboard of the first outboard end of the mold and a second end inboard of the second outboard end of the mold. The one-piece center core extends from the first end across the center area of the mold to the second end. It has surfaces to define interior surfaces of the bolster top wall, bottom wall and side walls on both sides of the bolster central transverse plane and bolster central longitudinal plane. Two one-piece end cores are also used. Each one-piece end core has surfaces shaped to define the interior surfaces of the bolster top wall, bottom wall and side walls from a position inboard of one friction shoe pocket to the first outboard end of the bolster.

Abstract: A method for casting a turbine bucket with at least one surface cooling hole. The method comprises positioning at least one preformed spacer device on a core, where the preformed spacer device is formed of ceramic materials and comprises opposed end plates and at least one interconnecting crossover pin connecting the end plates; forming a layer of temporary material, such as wax, over the core and around the at least one preformed spacer device; forming a shell mold over the layer of temporary material to cover it, the core and the at least one preformed spacer device. The shell mold is maintained stably positioned and spaced from the core by the at least one preformed spacer device, which connects and maintains the shell mold and the core as a stable body. The wax is removed to form a casting space for the turbine bucket between the shell mold and the core and around the at least one preformed spacer device.

Abstract: The present relates to an method to produce a molding apparatus for molding plastic parts which comprises a cavity insert and a core insert wherein each insert has an open area on the shell or back side thereof. A device for circulating fluid through each chamber cools the inserts. In one preferred embodiment, the cavity and core inserts are made using a mold having a ceramic formulation including generally uniform size aggregate materials and carbon fibers. In certain embodiments, the apparatus further includes pressure bearing devices, for absorbing molding pressure during operation of the molding apparatus.

Abstract: The upper level of a pouring conveyor receives sand molds and conveys the empty molds to a pouring station wherein molten material is deposited therein to form castings. Each mold is provided with a supportive weight and jacket before pouring. After the castings have been poured, the molds are transferred to the lower level of the pouring conveyor for cooling purposes, and then back to the upper level to remove the weight and jacket. The sand molds are then transferred to the upper level of a cooling conveyor and are deposited into trays provided on the cooling conveyor. Each tray is adapted to receive a plurality of molds to enable the molds to move from serial to parallel movement. An indexable pusher arm is provided to accurately place each mold in a respective tray to insure proper spacing for uniform cooling. After each tray has traversed the upper and lower levels of the cooling conveyor, the molds are removed from the trays and the sand is broken away to reveal the castings for harvest.

Abstract: In a method of producing a piston through casting, the piston has a piston head, a skirt, a pin boss and a supporting area, the supporting area connecting a periphery of the pin boss with the skirt. A plurality of molds are arranged such that the molds form cavities corresponding to a configuration of the piston. Mold matching surfaces between the molds are arranged such that the molds are contacted by each other at positions different from corners of the supporting area of the piston. A casting is performed by using the molds so that the piston is produced.

Abstract: A die casting machine has obliquely slidable die core pieces in an ejector holder block. The ejector holder block may be drawn away from the stationary die half into abutment with an ejection box by linear actuators; complementary male and female surfaces on the ejector holder block and ejection box precisely locate the ejector holder block with respect to the ejection box when the two are in abutment. The ejection box and mated ejector holder block may then be moved into abutment with the stationary die half to complete a die cavity.

Abstract: A movable insert for a die-casting mold having a cavity in which a core is mounted and slidable between a retracted position in the cavity and an extended position in which the core extends from the movable insert core. The core has a connector releasably connecting the core to a locator. The locator moves the core between the retracted and extended positions.

Abstract: A first cavity is formed between a mold and a core. One of a cylinder block material and a liner material is supplied to the first cavity. A second cavity is formed by expanding or shrinking the core or replacing the core with another core. The other of the cylinder block material and the liner material is supplied to the second cavity. The cylinder block with a liner is produced successively using the same apparatus.

Abstract: A method for connecting a plurality of cores in an assembly through adjacent surfaces of the adjacent cores is disclosed. This method includes the steps of: (a) forming a plurality of cavities between adjacent surfaces of two adjacent cores, the plurality of cavities being horizontally aligned and spaced apart along the adjacent surfaces; (b) arranging the plurality of cores in a row; (c) filling a hopper nozzle with a predetermined amount of connecting sand; (d) indexing the hopper nozzle above one of the cavities; (e) supplying compressed air into the hopper nozzle that contains the connecting sand, thereby projecting and charging the mass of the connecting sand from the hopper nozzle into the cavity; and (f) repeating steps (c), (d), and (e).

Abstract: A casting mold which enables an article to be molded by replacing only a specification-variable mold component for molding a section of the article when the specification of only that particular section has been modified, thus permitting reduced manufacturing cost of the molding. The casting mold is used for casting a rear bracket 85 a mounting leg 10 which is subject to changes in specification and a component housing 9 which is combined with the mounting leg into one piece. It is equipped with a main body mold 40 for molding the component housing and a specification-variable mold 41 which is detachably connected to the main body mold, which can be replaced according to specifications, and which molds the mounting leg.

Abstract: A light-alloy wheel is cast using an apparatus wherein cores are moved by a cotter via a sliding mechanism. A sliding portion is isolated from molten metal so that locking at the sliding portion is unlikely to occur. The sliding mechanism can be of a small size and is disposed in an interior of a mold top segment with a relatively large gap between the cotter and the mold top segment. The gap assures a good heat dissipation from the mold top segment. In a molding method conducted using the apparatus, the cores may be positioned at a retracted position and extended before the molten metal has solidified to thereby remove blow holes in a cast wheel.

Abstract: A steel tube furniture frame ornament includes a first half and a mating second half. The two halves of the ornament have grooves formed on a face thereof confronting each other to define tube extension channel within which a tube of the tube frame is received for mounting the ornament to the tube frame. The confronting face of the first half has at least one pin to extend through a hole formed on the tube and force-fitting into a pin receiving hole formed on the second half so as to secure the ornament to the tube. A method for manufacturing the ornament is also disclosed.

Abstract: A plurality of inter-connected cores includes barrel cores (18). Bore liners (10) surround the barrel cores (18) and are fixed in relation thereto. A cylinder block mold core package (22) is assembled from the cores (14, 24, 26, 28). The liners (10) are heated while they are within the cylinder block mold core package (22) by induction heating. To prevent migration, a mechanical interlock is provided between each liner (10) and its associated barrel core (18).

Abstract: The invention embraces the incorporation of kinematic fixturing elements into cores as for the precise casting of components, where typically the cores are much softer than metal, and typically the cores are sacrificial (they are destroyed during the casting process) whereby kinematic coupling grooves are located in each of the to-be-mated surfaces of a pair of core elements, such that when a ball is placed in each of the pairs of grooves, and the elements are brought together, even with coarse axial location of the ball in the grooves, very precise relative location of the two cores is obtained; and then, when a clamping force is applied to the cores, the balls create deformation of the core grooves, and the surfaces on the two cores come together into intimate contact.

Abstract: Composite golf club heads having high density inserts cast by investment casting of reactive metals such as titanium that result in a high degree of bonding between the head and the insert.

Abstract: Improvements in cast metal sideframes and bolsters for railway trucks are disclosed, along with improvements in the processes of casting such products and the cores used in the casting process. In one aspect, the cores are consolidated to provide two one-piece end cores, a one-piece center core, and a bottom center core for the sideframe and two one-piece end cores and a center core for the bolster. The consolidated cores may include cores to define various bolt holes. In another aspect, various cores may be made with step joints for interlocking support without weight-supporting chaplets. In another aspect, a locator boss may be formed on one or more of the cores for proper positioning of the core on the drag mold. Other improvements disclosed include providing a radial draft on the casting surrounding a bolt hole at a core parting or joint line so that nuts and washers may be evenly loaded. In the bolster interior, ribs may be straightened.

Abstract: A process for casting a pipe such as a delivery pipe with transversal holes, the pipe having an elongate longitudinal hole and at least one pair of transversal holes communicating with the longitudinal hole in a substantially normal direction thereto. The process comprises the steps of positioning a rod-like center pin for forming the longitudinal hole in a predetermined positional relation to a cavity formation surface of a casting die, positioning a pair of mandrel pins for forming the pair of transversal holes such that end faces thereof are in contact with side surfaces of the center pin, and charging molten metal into a die cavity after the center pin and the pair of mandrel pins have been positioned. The molten metal is charged under the condition that the center pin is prevented from deforming by the pair of mandrel pins.

Abstract: A casting mold member is produced from a master which has a section with a spirally symmetrical outer contour such that the casting mold member surrounds the section in an azimuthally closed manner with respect to the axis of symmetry. The casting mold member is used to provide a casting mold. The casting mold member is filled by feeding a cast iron melt, and solidifying the melt by using a graphitization pressure to prevent cavities and pores in the casting and by chilling the melt to obtain shell hardening.

Abstract: A shell mold includes a plurality of sleeve forming portions. Of the sleeve forming portions, at least an endmost sleeve forming portion located adjacent to a subrunner portion has a modified shape for compensating for deformation of cast sleeves caused by solidification and contraction of molten metal. A shell molding apparatus includes an upper die and a lower die which constitute a die set for molding a shell mold. The lower die is composed of shell molding inserts, each having the shape of a halved cylinder, spiny insert receiving recesses formed in the shell molding inserts, and spiny inserts retractably provided in the spiny insert receiving recesses. In a casting method using a shell mold, many protrusions of a spiny insert are reversely copied to the inner surface of a halved shell mold at the undercut portion of the inner surface, thereby forming many depressions at the undercut portion. The halved shell mold is parted from the lower die.

Abstract: An apparatus for gripping and handling a casting core of the type used in the casting of metallic products and the like. The gripping apparatus includes a pair of gripping jaws which are adapted to enter an opening in the casting core and then be expanded to grip the inside of the opening with a predetermined or adjustable contact pressure. The jaws are also preferably adapted to the contour of the inside of the opening in a form-fitting manner, so as to avoid damage to the core.

Abstract: An ink trough for a printing press is formed between two rollers and two side members on opposite ends of the rollers. The rollers can be operated independently for ink removal and cleaning purposes.

Abstract: A combination of a device for producing a closed deck type cylinder block and a sand core to be used in the device, the combination being capable of producing the block having high dimensional accuracy and eliminating precise dimensional control to the end face portion of the sand core. The sand core has a configuration identical with a water jacket formed in the engine block. Holding projections extending in an axial direction of a cylinder liner integrally protrude from a slide core of a movable die, and complementary holding bores are formed in the sand core, the bores being open at a top deck end face of the sand core. In one preferred embodiment, the top deck end face of the sand core is of a planner arrangement, and an end face of the slide core is formed with recesses for forming bridge portions therein. Casting is performed while maintaining a surface contact between the planner end face and the end face of the slide core. The contacting areas will become windows of the water jacket.

Abstract: A method of casting a pipe having an axially elongate hole of which a front end is closed, comprises the steps of positioning a rod-like center pin for forming the blind hole in a predetermined positional relation to cavity defining surfaces of a die cavity, supporting the positioned center pin sidewise with a support pin to prevent positional deviation of the center pin, charging molten metal into the die cavity, retreating the support pin apart from the center pin, and replenishing a space formed by the retreat of the support pin with molten metal.

Abstract: A die cast mould apparatus having a base for supporting a mould body partially defining a mould cavity. A mould body insert is insertable in the partially defined mould cavity and may be locked in this position to complete the mould cavity. The mould body insert is mounted on a retainer which is mounted in a channel, in a support extending from the base. The retainer may be locked to the support in the channel by way of interlocking wedges on the retainer and wedge receptors in the channel walls of the support, thereby locking the insert in the position to complete the mould cavity.

Abstract: A casting apparatus and method for producing a closed deck type cylinder block capable of facilitating removal of loose cores from the casted cylinder block. A die portion for forming a water jacket portion is formed with a plurality of notched portion having a bottom wall where a projection is provided. A pair of loose cores are fitted in each notched portion in such a manner that each parting face of the loose cores are in contact with each other. A first draft is provided at each loose cores and is mounted on the projection. In this case, the end of the parting face is placed on the projection. During casting, a molten metal is introduced into a space between the bottom wall and the first draft for forming a bridge portion. Upon solidification of the molten metal, the loose cores remain in the water jacket portion, and a bore is formed at the position corresponding to the projection.

Abstract: A cast abrasion resistant hollow ball is formed with a hollow ceramic core that generates no gas during the casting operation. Solid ceramic bars or supports hold the hollow ceramic core in a fixed location at the center of the cast ball during the casting process. There are no open holes or openings in the ceramic supports due to the fact that the hollow ceramic sphere is composed of an inert refractory material which eliminates any gases being generated during the pouring and solidification of the liquid metal in the casting process.

Abstract: A pouring basin (1) or funnel made of a mold material, such as sand is molded, and then positioned on a sand casting mold (2). In order to increase the usable casting time in the casting of a workpiece in the casting mold and at the same time avoid any increase in station time, the apparatus includes a mechanism designed to mold and consolidate the pouring basin (1) and then to place the consolidated pouring basin (1) directly on the casting mold (2) in alignment with the pouring hole thereof.

Abstract: A casting mold for a low-pressure casting apparatus can be opened and closed and is closed to form therein a cavity which is filled with molten metal to form a cast product. The casting mold includes an upper mold of metal, a lower mold of metal and a sand mold which is disposed between the upper and lower molds and forms a part of the cavity. A top wall of the cavity is formed by a lower surface of the upper mold, at least a part of a side wall of the cavity is formed by the sand mold so that the upper mold contacts with the molten metal filled in the cavity in a larger area than the lower mold.

Abstract: Apparatus and method for closing, connecting, clamping, unclamping, disconnecting and opening the die halves attached to a moving platen and fixed platen of a the die casting machine comprising clamping means, open-closing means, and connecting-disconnecting means, the clamping means comprising a clamping cylinder and a clamping piston, the open-close means comprising an open-close cylinder connected to the rear of the moving platen and an open-close piston connected to the interior center of clamping cylinder, the open-close means comprising an insertion or removal of an insertion between the clamping piston and the open-close cylinder.

Abstract: A solder bump is stenciled onto a substrate, providing bumped substrate at pitches below 400 microns. The solder is applied through stencil/mask and paste method; the mask, however, remains attached to the substrate during reflow. Pitches of greater than 400 microns may also be obtained through the invention. The invention further provides for generation of uniform, controllable volume metal balls.

Abstract: This invention relates to a process for casting a metal which uses assemblies of foundry shapes. The foundry shapes are held together with a solventless adhesive paste having urethane linkages. The foundry adhesive paste is a two component system comprising a prepolymer in the Part I and a curative in the Part II.

Abstract: Upper and lower boxes are conveyed in a foundry moulding installation with two parallel conveyors, in each case one moulding machine for the upper and lower boxes on one of the conveyors and transfer stations between the two conveyors. On the first transfer station, the empty upper box is removed from the empty lower box, transferred to the second conveyor and is supplied to the first moulding machine, while the empty lower box is moved on up to the second transfer station positioned between the moulding machines and transferred to an empty location on the second conveyor positioned immediately upstream of the first moulded upper box the upper box in the next working cycle is transferred into the transfer station and from there to the first conveyor, while the lower box is moved on into the second moulding machine and then into a core inserting line.

Abstract: A foundry die casting machine for the small and medium-scale production of metal parts, having at least two die cheek parts for receiving molten materials, wherein the die cheek parts form a cavity, a framework having a supporting wall for supporting the die cheek parts, at least one cheek-moving jack having means for supporting and displacing the die cheek parts, which permits removal of the metal parts, at least one removable coupling member, wherein an end of the coupling member is removable and directly supported by a die cheek part and the other end is removably connected to the cheek-moving jack, at least one cheek-moving jack carrier mounted on said framework, at least one hollow-formation reservation member for insertion into the cavity, at least one reservation member-moving jack having means for supporting and displacing the hollow-formation reservation member, and at least one removable reservation member-moving jack carrier, wherein an end of the latter is removably and directly supported by one o

Abstract: A gripping device of an injection molding machine, the gripping device rotatably disposed to a front side of a plate which is connected to a mold, the gripping device including a rotatable device, a first jaw and a second jaw, the first and the second jaws are slidably engaged to the board and the board having a first gear disposed thereto, a shaft extending through the board, the first gear and the plate wherein the shaft is fixed at both its ends and has a threaded portion defined in a peripheral surface thereof to threadedly engage with the first jaw and the second jaw, a second motor disposed to the plate and having a second gear mechanically engaged thereto, the second gear engaged to the first gear such that the board and the first gear are rotated by the second motor, the movable plate and the gripping device are therefore moved along the shaft so as be to securely engaged to another fixed mold.

Abstract: A method of casting a plurality of caliper forms by using a mold and a core member of a special design is presented. The core member 20 has axial sections 22A, 22B formed on its each end aligned parallel to each other, and the middle section 21 between the axial sections is provided with a depression section 24A for forming a teeth section 9 of the caliper form 17A. Between the depression section 24A and the axial section 22A, there is a depression section 24B opposing the depression section 24A for forming the other teeth section 9 of the other caliper form 17B. There are internal surface forming sections 27A, 27B for forming the internal surfaces of the disc pass sections 8, respectively, between the axial section 22A and the depression section 24A, for the caliper form 17A and between the axial section 22B and the depression section 24B for the caliper form 17B.

Abstract: A casting mold assembly includes cope and drag sections having a casting cavity therebetween and a casting core supported within the cavity. A vertical down sprue extends through the cope section and joins a flow passage extending through the core in prolongation of the down sprue for introducing molten metal directly into the mold cavity to produce a disk brake rotor. A filter is supported in the flow path of the core and a flow control lip is provided at the exit of the flow path to provide a flow constricting gap between the annular lip and an underlying lower cavity wall to slow the flow of metal into the cavity.

Abstract: A core forming mold having at least three regions is provided and a molding sand is supplied into the core forming mold. The molding sand is hardened by an amine gas, to obtain a molding core having at least one region which has a diameter smaller than that of other regions. An iron casting mold is provided having a molding cavity therein, such that the molding core is positioned within the molding cavity of the iron casting mold. A molten iron is cast within the iron casting mold to entirely enclose the molding core.

Abstract: The mold comprises an outer mold part (10) which defines a mold cavity (11). Walls of the outer mold part form the outer surface of the combined engine block and cylinder head. There also are first and second inner mold parts (12, 13) which extend into the mold cavity and are maintained a distance from each other. Each of the first and second inner mold parts have a cylindrical portion (12a, 13a) which, during the casting procedure, forms the cylinder bores in the engine block. The first and second inner mold parts (12, 13) also each have an upper portion (12b, 13b) situated above the cylindrical portion. During the casting procedure the upper portions form portions of a combustion chamber common to the cylinder bores. The mold further includes an third inner mold part (15) which extends through the outer mold part (10) and cooperates with the first and second inner mold parts (12, 13) to form the combustion chamber during the casting procedure.

Abstract: The unitary cylinder liner incorporating a water jacket is vertically cast as a one piece unit. The water jacket is draftless, allowing water to circulate therethrough more efficiently, increasing cooling capabilities. Such vertical one piece casting is made possible by the novel two piece core which eliminates the need for welding of metal bands onto an outer surface of the liner to produce the water jacket thereof. A novel method of vertical casting is also provided by use of the two piece core.

Abstract: A casting core 100a, 100b is fabricated entirely of decomposable refractory material such as foundry sand/binder and is formed with a plurality of push rod passage-forming portions (136a, 136b) for forming a corresponding plurality of push rod passages within a cylinder block (26) and a transverse intersecting oil gallery-forming portions (138a, 138b) for forming an associated long and narrow oil gallery within the cylinder block.

Abstract: A core mask assembly is provided for depositing a core within an internal pattern formed by the joinder of first and second cooperating mold sections. The core mask assembly includes a reciprocal carrying ram and a base member interconnected to the ram. A face plate having a pattern for receipt of the core is removably connected to the base member. A unique mounting and alignment arrangement permits easy removal and replacement of the face plate when desired.

Abstract: The apparatus includes a wheel mold that has a top segment having a plurality of openings formed therethrough. Movable cores are carried in the top segment openings. A mechanism is mounted on the top segment to alternately extend the cores into the mold cavity and retract the cores into the openings. To form a wheel, the movable cores are extended and molten metal is introduced into the mold cavity. The movable cores form recesses in the resulting wheel casting. After casting has cooled sufficiently, the movable cores are retracted from the recesses allowing the top segment to be withdrawn from the wheel casting. The casting is then removed from the mold.