Abstract: A mould for forming battery components includes a first mould body having a first plurality of mould cavities and a second mould body having a second plurality of mould cavities. The first mould body and the second mould body are configured to be moveable between a moulding position in which the first plurality and second plurality of mould cavities are aligned, and a fill position in which the first plurality and second plurality of mould cavities are displaced from the aligned position and are proximal to a molten metal feed.

Abstract: A centrifugal casting apparatus for different materials may include a mold having a shape corresponding to a shape of an outer surface of a casting to be produced, and having a cavity receiving molten metals therein, a molten metal guide inserted into the mold and configured to guide the molten metals so that the molten metals are separately injected into the mold, a guide fixing support fixing the molten metal guide to a predetermined position, and a motor configured to rotate the mold around a rotation axis.

Abstract: An apparatus and a method for moulding battery components using an apparatus include a mould block having a plurality of mould cavities; a molten metal feed trough adjacent to the mould block and extending in a generally longitudinal direction along the mould block; a plurality of weirs between the feed trough and each of the cavities; and a supply for providing molten metal to the trough. The feed trough is provided with at least one volume adjustment mechanism, which is operable to alter the volume of the feed trough.

Abstract: Around a crankshaft (S) supported by a support device (10), a first shape measuring device (31) to a fourth shape measuring device (34) are disposed, and the crankshaft (S) and the first shape measuring device (31) to the fourth shape measuring device (34) are relatively movable in an axial direction (X direction) of the crankshaft (S). The first shape measuring device (31) and the third shape measuring device (33) are disposed so as to face to one X direction and acquire partial shape information (including the other side surfaces in the X direction of counterweights (S2)) of the crankshaft S, and further, the second shape measuring device (32) and the fourth shape measuring device (34) are disposed so as to face to the other X direction and acquire partial shape information (including one side surfaces in the X direction of the counterweights (S2)) of the crankshaft S. This makes it possible to accurately inspect a shape of the crankshaft (S) in a short time.

Abstract: A feed system for conveying a molten metal that is to make a casting, the system including a feed channel made of ceramic material that is configured to enable the molten metal to flow by gravity inside the feed channel, the feed channel having a first portion extending in a first direction, and at least one second portion extending in a second direction different from the first direction, the second portion being arranged downstream from the first portion and being connected to the first portion by a junction. The system further includes a damping channel having a first end opening out into the junction and a second end that is closed, the damping channel extending the first portion of the feed channel.

Abstract: A stack molding pattern and a shell for manufacturing aircraft turbine engine blades via lost wax casting. The stack molding shell includes a plurality of shell blade elements, each intended for producing a blade, wire elements being arranged within the shell blade elements; and a metal feeder including a plurality of metal outlets, each one radially open towards one of the shell blade elements and connected with the second end portion of the element. The shell includes a protective screen, associated with each second end portion and intended to protect a sensitive portion of the wire elements against the direct impact of a flow of metal from the feeder. The sensitive portion is located in the second end portion, downstream from the protective screen.

Abstract: A method of simultaneously manufacturing a plurality of crankshafts includes positioning a core system having a plurality of individual cores within a cavity of a mold having first and second halves forming an exterior shape of the crankshafts. The crankshafts' exterior shape includes a plurality of pin bearing journals and a plurality of main bearing journals. Each of the cores passes through each of the crankshafts. At least one core passes through at least one of the pin bearing journals and at least one other core passes through at least one of the main bearing journals. The method also includes introducing into the cavity molten metal to form the crankshafts. As the metal flows into the cavity and around the plurality of cores, a hollow section extending through at least one of the pin bearing journals and at least one of the main bearing journals of each crankshaft is formed.

Abstract: A method of making a composite component and the composite component is disclosed. The composite component can comprise multiple portions with different materials. By configuring the composite component with different materials, the weight of the composite component can be reduced while maintaining the strength and support of the composite component for a cockpit assembly. Furthermore, the method provides for an increase in the efficiency of the die casting process used to create the composite component.

Abstract: A casting device includes a covered crucible having a top opening and a bottom orifice, a lid covering the top opening, a stopper rod sealing the bottom orifice, and a reusable mold having at least one chamber, a top end of the chamber being open to and positioned below the bottom orifice and a vacuum tap into the chamber being below the top end of the chamber. A casting method includes charging a crucible with a solid material and covering the crucible, heating the crucible, melting the material, evacuating a chamber of a mold to less than 1 atm absolute through a vacuum tap into the chamber, draining the melted material into the evacuated chamber, solidifying the material in the chamber, and removing the solidified material from the chamber without damaging the chamber.

Abstract: The casting unit solves problems of a conventional casting unit, in which a non-consumable sprue is connected to a lost foam gate attached to a core, such as troublesome assembly and post-treatment after casting. In the casting unit, a plurality of cores having molten metal inlets, which open into the surfaces of the cores and through which a molten metal is caused to flow into cavities formed in the cores, and a lost foam pattern, which forms a sprue between each of the molten metal inlets and a sprue cup, in which a molten metal is poured, and which has a peripheral surface coated with a refractory mold coating agent, are embedded in dry sand except for the sprue cup, and the cores, which are adjacent to each other, are connected to each other so that the plurality of cores are integrated.

Abstract: Disclosed is a mold 10 for forming cast rods including: a segment assembly 12 including a plurality of segments 14 being placed side by side, and a plurality of cavities 26 extending along a longitudinal direction 16; and clamping means (18 to 21) for clamping the segment assembly 12 in directions orthogonal to the longitudinal direction 16. The mold 10 has one or more cavity-forming portions 28 each forming a part of one of the peripheral surfaces of the cavities 26. Each cavity 26 is formed by a combination of two or more segments 14, and at least one of the plurality of segments 14 has two or more cavity-forming portions 28.

Abstract: The invention essentially relates to a device and a method for casting and rolling metal, wherein at least one first and one second casting line for casting slabs and a rolling train for rolling the casted slabs are provided. The first casting line is designed as a horizontal thin-slab casting system (1) which comprises at least one dispensing vessel (5) for a melt and a conveyor belt (6) running horizontally downstream of the at least one dispensing vessel (5) in the casting direction. The second casting system is likewise designed as a horizontal thin-slab casting system (1) and/or as a vertical thin-slab casting system (2), which comprises at least one mold (4) for vertically casting slabs and a bending and straightening device (7) for bending and straightening the vertically casted slabs into a horizontal position.

Abstract: A manhole assembly (10; 10?) comprises a frame (11; 11?) and at least a pair of cover plates (12, 13; 12?, 13? that are receivable in and disengageable from the frame to permit selective closing and opening of an aperture the periphery of which is defined by the frame, the cover plates (12, 13; 12?, 13? substantially occupying the aperture when received in the frame; a first cover plate (12; 12? of a said pair being smaller than a second cover plate (13; 13?) of the pair; the first cover plate being hingeable relative to the second cover plate, while the latter is received in the frame (11?, 11), from a closed position received in the frame to an open position in which a first part of the aperture is open; and the second cover plate being removable from the frame, when the first cover plate is disengaged from the frame, to open a second part of the aperture.

Abstract: A mould for stratified moulding with metalostatic pressure compensation formed by one or more stackable moulds formed by a tapping cavity of a generally rhomboidal truncated cone shape and one or more moulding cavities connected to the tapping cavity by one or more supply conduits; in such a way that each tapping cavity of each stackable mould interconnects to form a central filling collector, and each tapping cavity compensates for the metalostatic pressure of the molten metal as it is drained by the central filling collector to achieve generally uniform filling of each of the moulding cavities of each of the stackable moulds. In addition, the generally rhomboidal double truncated cone shape serves to keep a temperature distribution in the mould during the pouring of molten metal.

Abstract: Disclosed is a mold 10 for forming cast rods including: a segment assembly 12 including a plurality of segments 14 being placed side by side, and a plurality of cavities 26 extending along a longitudinal direction 16; and clamping means (18 to 21) for clamping the segment assembly 12 in directions orthogonal to the longitudinal direction 16. The mold 10 has one or more cavity-forming portions 28 each forming a part of one of the peripheral surfaces of the cavities 26. Each cavity 26 is formed by a combination of two or more segments 14, and at least one of the plurality of segments 14 has two or more cavity-forming portions 28.

Abstract: The invention relates to a casting method for aluminium or aluminium alloys, in which molten aluminium is treated and fed to at least one casting station (33, 34), in which the molten metal is cast into semi-finished products or similar. A number of casting ladles (25) are used to treat and feed the molten aluminium to the respective casting station (33, 34). The ladles are filled with the molten metal and the latter is then transported to at least one additional stage (32), where it is treated. The molten metal is subsequently delivered in the ladles (25) to the casting station (33, 34), where the ladles (25) are emptied. The invention thus provides an efficient method that can be flexibly adapted to the time periods of the process, said periods altering according to the situation.

Abstract: A population of extrusion billets has a specification such that every billet is of an alloy of composition (in wt. %): Fe<0.35; Si 0.20-0.6; Mn<0.10; Mg 0.25-0.9; Cu<0.015; Ti<0.10; Cr<0.10; Zn<0.03; balance Al of commercial purity. After ageing to T5 or T6 temper, extruded sections can be etched and anodised to give extruded matt anodised sections having improved properties.

Abstract: A method and apparatus for preparing connecting straps and end terminals for lead batteries by filling selected cavities of the mold is disclosed. The mold has cavities for casting connecting straps and an end terminal. Molten lead is filled up to an amount of lead sufficient to fill the preselected cavities of the mold. The content of the mold is brought together with inverted plate lugs of grouped battery plates to fuse the plate lugs together with the content of the mold prior to solidification. The method and apparatus includes a first mold block having three mold cavities in an upper face thereof, whereby two preselected cavities of the three mold cavities are translationally aligned to be filled with lead.

Abstract: A tool, especially for producing molding cores. The tool is disposed in a casting apparatus and is provided with first half-shells (13, 15) and second half-shells (14, 16). Two parting planes are provided, and two casting units are formed from the first and second half-shells. These parting planes are situated one behind the other in the direction of movement of the two casting units.

Abstract: A molten metal alloy, such as bismuth and tin, is injected into a die block to form a tightly packed rectangular array of shot pellets. The ratio of waste sprue to shot pellets is minimized and the shot pellet yield per casting is maximized by allowing the shot pellets in the rectangular shot array to touch other shot pellets in adjoining rows and columns through small interconnecting vias. The interconnecting vias allows the molten metal to flow between shot pellets, as well as from the sprue into the shot pellets. This allows the molten metal to bypass blockages that reduce the shot pellet count per casting. The flow of the molten metal through the die block is also improved by machining away a small amount of metal from the face of the die in order to form a flashing between the shot pellets.

Abstract: An improved fishing sinker having a specific gravity sufficiently high so as to provide sufficient weight without undue bulkiness with the fishing sinker having a body of material formed from bismuth or an alloy of bismuth and a method of casting a bismuth containing sinker in order to have the sinker release from the mold as well as a method of forming a runner attachment to the fishing sinker to enable quick and clean removal of the solidified runner from the solidified fishing sinker.

Abstract: Metal matrix composite is made by assembling pre-forms of porous reinforcing material with an array of separator plates in a die in a pressure vessel, and infiltrating molten metal matrix material. Pre-evacuation followed by pressurisation when the molten metal matrix material is introduced into the die aids the infiltration. Re-introduction of gas during initial heating prior to melting speeds the heat-up process.

Abstract: The apparatus includes a cylinder for holding molten material and a plurality of molds each having a plurality of cavities for receiving molten material. As the cylinder is rotated by a driving mechanism, the molten material is passed through a plurality of holes in a cylindrical wall which surrounds the holding area where the molten material is located, and into the cavities in the molds, which are transported in series beneath the cylinder as the cylinder rotates.

Abstract: Improvements in metallurgical conversion in accordance with the present intion consist in the preparation of a semifinished item (a charge stock) in the form of a pig by forming thereof in a molding box of a casting machine from a solid filler, for the most part an oxidizing agent, and a liquid pig iron followed by cooling, provided said solid filler and said liquid pig iron undergo, in the process of forming, an action which prevents the floating up of the solid filler in the liquid pig iron. Such an action is effected both by applying a mechanical force, in particular by providing a casting machine with a cantilever (8) having a hollow roller (9) which rests on a molding box (2) and a weighting material (10), and by choosing relative dimensions of the solid filler pieces and selecting a rate of pig casting. Optimal conditions for using such semifinished item for metallurgical conversion which in accordance with the present invention is carried out in oxygen converters and arc furnaces are described.

Abstract: Method of multi-color jewelry items production is based on a simultaneous casting of two metal alloys of different colors (yellow-red, white-yellow, etc.), as well as two different metals, with a purpose of obtaining jewelry art-works of high-quality and unique artistic impression. To serve that purpose, the following apparatus has been constructed: rubber base with two inlets, two-chamber ceramic crucible with two identical outlets, and a model of the jewelry item with two sprues connected to two separate tree stems, with each sprue connected to a separate stem thus ensuring flow of different colors or different metals. Simultaneous casting of two different metal alloys of different colors in two separate chambers of crucible is achieved by using a specially constructed two-head torch. Usage of this invention in the process of jewelry work casting ensures a unique natural effect of smooth transition from one color to another in a jewelry piece (ring, brooch, pendant, charm, etc.

Abstract: The die has first and second die halves, each die half having a plurality of cavities that, when the die halves are in a closed position, align with the cavities in the other die half, thus defining a plurality of voids that define the objects to be formed. A spacing between the front surfaces of the die halves during the injection step of the cycle helps to increase the number of parts that properly release from the die.

Abstract: An apparatus for manufacturing a solid spherical body of solder having high sphericity and high dimensional accuracy comprising a flat plate having a plurality of holes which penetrate the flat plate opening at its upper and lower surfaces, said upper surface being made of material which is not easily wetted by moltens or semi-molten substances, a space to be filled with said molten or semi-molten substance, a cylinder connected with said space, a piston which can elevate within said cylinder pressing said substance in said space upwards and ejecting it at said upper surface of said flat plate through the plurality of holes and a driving device which can move said piston up and down and the spherical bodies are formed by the action of the surface tension of the substance ejected.

Abstract: In vertical-type continuous casting in which a plurality of ingots are cast by pouring molten metal into a plurality of molds each composed of upper and lower dies and by lowering the lower dies in a predetermined path at a casting speed, the upper dies having different casting diameters are arranged on a common table for casting the ingots of different diameters simultaneously on the table 8.

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: A molten metal alloy, such as bismuth and tin, is injected into a die block to form a tightly packed rectangular array of shot pellets. The ratio of waste sprue to shot pellets is minimized and the shot pellet yield per casting is maximized by allowing the shot pellets in the rectangular shot array to touch other shot pellets in adjoining rows and columns through small interconnecting vias. The interconnecting vias allows the molten metal to flow between shot pellets, as well as from the sprue into the shot pellets. This allows the molten metal to bypass blockages that reduce the shot pellet count per casting. The flow of the molten metal through the die block is also improved by machining away a small amount of metal from the face of the die in order to form a flashing between the shot pellets.

Abstract: The present invention relates to a novel process for forming a plurality of thin metal matrix composite bodies. Particularly, an infiltration enhancer and/or an infiltrating atmosphere are in communication with a filler material or preform, at least at some point during the process, which permits molten matrix metal to spontaneously infiltrate the plurality of filler materials or preforms. Such spontaneous infiltration occurs without the application of any pressure or vacuum and occurs in a single step. In an embodiment of the present invention, the filler material may be sprayed upon a thin sheet of matrix metal. Alternatively, the filler material may be shaped via tape casting, slip casting, etc. to provide a thin preform. In another embodiment of the present invention, a body of matrix metal may be coated with a filler material such that upon spontaneous infiltration a metal matrix composite body is produced which inversely replicates the configuration of the original body of matrix metal.

Abstract: In a process for the manufacture of brake discs, in particular of ventilated brake discs, a top runner is formed in a top box (cope), from which the brake disc is cast approximately centrally. The molten metal is uniformly distributed using star-shaped riser ribs.

Abstract: The conventional investment casting technique is modified to cast metal products where the product has one or more support portons and at least one feeding tube for feeding molten metal into the cast of the product comprising providing a source of molten metal, connecting at least one metal feed tube to the mold of the metal product to be cast, of forming a hole in each support portion wherein the hole in each support portion is much larger than the volume of metal that can be non turbulently transmitted in a deflected manner into the mold by the feed tube so that the metal poured nto the generally uniform cross section mold cools gradually so that the support portions of the cast metal products will have a generally homogenous composition without air bubbles or cracks which could weaken the product.

Abstract: In production of a gap spacer for magnetic heads in electric and electronic appliances, accumulation of a non-magnetic material insoluble to acids or alkalis on a thin base soluble to these solvents is employed with use of a proper mask as a substitute for the conventional rolling process. Stable growth in thickness of the non-magnetic material during the accumulation process assures highly precise thickness uniformity of the product via easy time control of the process and absence of the rolling process allows broader freedom in choice of the material.

Abstract: An improved apparatus and method is used to cast a plurality of articles in a mold structure having a plurality of article molds disposed in an array having an open central portion. The article molds are filled with molten metal while the mold structure is supported on a chill plate. An inner baffle plate is disposed in the central portion of the array of article molds and retards the transfer of heat from the article molds to the chill plate. The inner baffle plate is supported by a support structure which extends through the chill plate. After the article molds have been filled with molten metal, the chill plate and mold structure are lowered relative to the inner baffle plate to increase the rate of heat transfer from the article molds to the chill plate through the open central portion of the array of article molds. Thereafter, the inner baffle plate and support structure are lowered with the chill plate and mold structure.

Abstract: A plurality of identical green sand molds are sequentially formed by horizontal compaction on automatic mold making machinery. Each mold has a front and back vertical face with a recess formed in the front face and a plurality of down runners formed in the back face. A mold piece insert is formed of a mixture of green sand and a chemical bonding agent, preferably a resin binder and cold set in a pattern box to form the cavities for the cast articles. The mold piece insert is received flush in the mold front face recess with the cavities opening to the front face. A plurality of molds, with inserts, are adjoined in front-to-back relationship with the down runners overlapping the cavities for feeding the molten pour thereto.

Abstract: An improved mold includes an upper mold section having a primary distribution system which is connected with a furnace and a lower mold section which is withdrawn from the furnace on a chill plate. A baffle plate is supported from the primary distribution system. The lower mold section includes a secondary distribution system which is connected in fluid communication with the primary distribution system at separable joints. The secondary distribution system is connected in fluid communication with article molds which are disposed in an annular array. During pouring of molten metal, reaction forces are transmitted to the chill plate from the pour cup through a support post and baffle plate. Once the article molds have been filled with molten metal, the chill plate is lowered. The primary distribution system which is connected to the furnace, remains stationary.

Abstract: In order to maintain fluid tight seals between open ended article mold cavities and a chill plate and to prevent cracking of article molds at connections with a base plate, the base plate has sections which can be moved relative to each other under the effect of thermal expansion forces transmitted from a molten metal distribution system connected with the upper ends of the article molds. The base plate may be formed as one piece with stress concentration areas. During the casting of articles, stresses in the base plate crack the base plate at the areas of stress concentration to form the separate sections of the base plate. The areas of stress concentration can be formed by slots or grooves in the base plate. The areas of stress concentration can also be formed by bodies of expansion material having a greater coefficient of thermal expansion than the ceramic material of the base plate.

Abstract: A method for moulding multiple castings in which each mould is fed from a source of molten metal through a thin slit the width of which lies in the range 1.25 mm down to 0.25 mm. The cast articles can easily be removed from the runner and riser system after casting without a machining operation so that the casting moulds can be packed closer together and more castings can be produced from each mould assembly. The thin slit also acts as a filter. A particular mould assembly seen in FIG. 2 is cylindrical and comprises a plurality of wedge-shaped mould segments 2 having mould cavities 4 in abutting faces. A central runner passage 6 is formed when the mould segments are assembled and the metal flows into the mould cavities through narrow slits 10 in one edge of each mould. After casting and removal of the mould the narrow flashing formed in the slits can easily be broken to remove the cast articles from the metal formed in the central runner passage.

Abstract: An improved method is utilized to make an improved mold for forming a plurality of small objects, such as piston rings. The mold is made by stacking a plurality of mold sections formed of gas permeable material, such as CO.sub.2 sand, resin bonded sand or green sand. The stacked mold sections are then clamped together to hold them against movement relative to each other. A wet coating of liquid ceramic material is then applied over the stack of mold sections. This liquid ceramic mold material is dried to form a rigid gas permeable ceramic casing which encloses the stack of mold sections. The rigid casing of ceramic material holds the mold sections against movement relative to each other to prevent break-out of metal from between the mold sections when a flow of molten metal is directed into the mold cavities. Due to the gas permeable construction of both the rigid ceramic casing and the mold sections, gas can readily escape from the mold as the molten metal enters the mold cavities.

Abstract: A casting tree for preparing a tandem mold suitable for sequential casting, within the same casting flask, of both white and yellow gold portions of jewelry items has a base with a main stem extending upwardly from the base. In addition, a secondary stem is also provided and extends from the base to an upper portion of the main stem. Both stems are formed of a fusible material generally termed as "casting wax." Disposed through the central portion of the main stem, between the base and the upper portion to which the secondary stem extends, is a piece of non-fusible material, preferable a ceramic disc.When the subject invention tree is used in an investment casting process, the casting mold formed thereby comprises a tandem mold divided by a non-fusible separator, each portion of the mold having a separate passage communicating therewith whereby two different types of material, for example, a white gold and yellow gold, can be separately cast using one flask.

Abstract: An improved method of forming inner and outer sections of a shroud with an airfoil extending between them includes forming the airfoil and shrouds in sections. An upper or convex section of an airfoil is formed with a radially inner section of the shroud while a concave or lower section of the airfoil is formed with a radially outer section of the shroud. A free end portion of the convex or upper airfoil section is inserted into an opening formed in the outer shroud section while a free end portion of the concave or lower airfoil section is inserted into an opening formed in the inner shroud section. The free end portions of the airfoil sections are then connected with the shroud sections to form a complete airfoil and a portion of the inner and outer shroud sections.

Abstract: A method of recovering tin from tin dross consisting of positioning a barrel having an apertured bottom and charged with a supply of the tin dross upon a partitioned collecting tin mold, with the components thus arranged being placed into a furnace for subjecting the components and tin dross charge to a temperature approximating 700.degree. F for a time duration approximating 5 - 6 hours and allowing the developed molten free tin to flow downwardly of the barrel and through the apertures thereof and into and between the partitions of the collecting tin mold, and withdrawing the collecting tin mold for cooling before removing the cast tin bars therefrom. The apparatus aspect relates to the design of the barrel and collecting tin mold.

Abstract: A method of making a more economical and reliable treating agent for use in late metal treatment when pouring metal castings. The treating agent is defined as an essentially homogeneous solid cast block preferably containing alloying ingredients to nodulize or inoculant ferrous metal. Each block is designed to present a generally uniform reaction surface to molten metal to be treated. This is obtained by casting the block to a shape which snugly fits a prepared basin in the mold gating system over which the molten metal to be treated must flow, or to cast the block in an annular configuration through which the molten metal must flow. The latter block has contoured inner surfaces which maintain a generally constant reactive surface as the block is consumed. These blocks are preferably prepared by simultaneously casting a large number in closely nested relation.

Abstract: An automated ladle, based on a swinging arm concept, for pouring piston castings automatically. The ladle is tilted to a pour position by means of a motor driven cam which twists the swinging arm about its longitudinal axis, the ladle being carried at the end of the arm. Electrical circuitry interconnects the ladle mechanism with a molten metal holding furnace and a pair of automated piston molding machines for automatically controlling the operation of the entire assembly.

Abstract: The invention is an improved apparatus for use in a system for growing crystalline bodies from the melt. The apparatus has a novel crucible die assembly in which the dies are located in cavities in the crucible side wall.

Abstract: The present invention relates to a method of manufacturing a metal-impregnated body in which a porous body is immersed under sub-atmospheric pressure in a molten alloy for impregnation with said alloy or a porous body is immersed under elevated pressures produced by various gases, the pressure then being reduced to normal level, after which the porous body is introduced together with a molten alloy into a metal mold, in which said molten alloy is impregnated into said porous body. The porous body is then separated from said molten alloy.