Abstract: A fugitive pattern assembly is made by preforming one or more fugitive patterns of an article to be cast, placing the preformed patterns in an injection die, and injecting fluid gating material into the die to form gating connected to the patterns. The fugitive patterns are disposed in end-to-end and/or side-by-side relation and are interconnected by the gating.

Abstract: In a method for pouring several moulds in a mould-string plant in the pouring operation, the moulds are produced by compression of sand or similar mould material in a pressing chamber comprising pattern plates 3, 4 for providing impressions in the surfaces of the mould parts for forming the mould cavities 11 and inlet runners 8. The moulds are advanced to a pouring track or guideway, on which the casting moulds are formed by positioning the mould parts close together and the advancement of the casting moulds is stepwise through a pouring station, in which the moulds are filled with molten metal. By providing at least one runner 7 for mutually connecting at least two inlet runners 8 for consecutive mould cavities 11, the mutually connected mould cavities can be filled through a single pouring inlet 8, and unused pouring inlets 8 may be plugged by a suitable plug 14 in order to minimise the amount of molten metal needed to fill the mould cavities 11.

Abstract: The molding and transporting apparatus comprises a molding section for vertically blowing sand from above between a front die and a rear die that have vertically formed pattern faces, and thereafter, driving the front and rear dies and compacting the sand to produce a mold M, and for extruding the mold horizontally, a dividing mechanism for, before the sand is blown, vertically dividing the mold into front and rear portions, as needed, at the center of a molding space, a pouring port formation mechanism for forming a pouring port in the mold; and a form converter for selectively rendering an active operation for changing the form of the mold that is extruded from the molding section from the vertically split form to the horizontally split form, and a non-active operation for transporting the extruded mold to a pouring line, without changing the form of the mold.

Abstract: A feed device for fastening elements with low length-to-diameter ratio has a hollow clamp into which individual fastening elements are inserted through a feed channel. The clamp has an internal pocket for pre-positioning a fastening element. A piston moves through the feed channel to engage the fastening element and to open the clamp to release the fastening element for further movement by the piston.

Abstract: The invention relates to a side wall (1) of a plant for the continuous casting of metal strip (5) between two counter-rotating rolls (2, 2?) having horizontal axes and being internally cooled, the surfaces of which define a casting space confined laterally by two side walls (1) made of refractory, of the type comprising: a support plate (6) on the front face of which a recess (7) is made; an insert (9) made of hard material placed around the periphery of the recess (7); a lining (11) that fills the remainder of the recess (7); characterized in that the front face (12), turned towards the casting space, of the said lining (11) is set back by a maximum distance (d) from the front face (13) of the insert (9) over at least part of its length.

Abstract: Method and apparatus for prolonging the stability (working life) of a ceramic slurry and other aqueous mixture or dispersion containing a liquid silica-bearing or other component as well as the raw liquid silica-bearing component in ambient air over time by providing a gas blanket that reduces exposure to ambient air.

Abstract: A connecting element for connecting and/or fixing an electrode with an electrode arm of a welding apparatus has a base body; and a sensor selected from the group consisting of a sensor for introducing ultrasound waves into an electrode, a sensor for receiving ultrasound waves and both.

Abstract: Various systems and apparatuses for processing a metal casting are provided.

Abstract: A numbering device is disclosed for marking molded cast parts, the device including a plurality of concentric cylinders having indicia disposed on an end thereof, the cylinders being rotatingly indexable to cause the indicia to move as desired to form the desired mark, the mark is then impressed into a sand mold and subsequently reproduced on the cast part.

Abstract: A diecast machine comprises: a sleeve extending in the vertical direction; a plunger moving upward in the vertical direction inside the sleeve; a mold disposed above an upper side of the sleeve; a case member constituted of a nonconductive member, which covers at least a lower end of the sleeve and forms a closed space including the lower end of the sleeve; a communicating pipe connecting the inside of the closed space to the outside of the closed space; and high-frequency induction coil configured to heat metal material disposed on the plunger from the outside of the case member and melt the metal material.

Abstract: A method and apparatus for manipulating a contact tip of a welding device includes a member, e.g., a clutch bearing or other device, that securely grasps the contact tip and minimizes damage thereto. The method and apparatus can be used to install or remove a contact tip into/from a welding device, e.g., without the need to remove the nozzle of the welding device.

Abstract: A process for manufacturing a blade of a turbomachine using the lost-wax moulding technique, where the blade includes a first central longitudinal cavity and at least one second longitudinal cavity together forming a cooling circuit and communicating with each other at one longitudinal end via a transverse channel. The process includes manufacturing first and second cores corresponding to the cavities, where the two cores each have an end portion, by which they are connected together by an assembly of the mortise and tenon type. The assembly of the two cores is then positioned in a shell mould and the metal poured into the mould.

Abstract: To destructively remove a refractory metal casting core from a cast part the part is exposed to a combination of nitric acid and sulfuric acid.

Abstract: A thermal-oxidative process is used to remove a casting core from a cast part.

Abstract: The invention provides die casting systems and methods. A die casting system has two body portions, each having a die insert. A die-insert rack that holds the die inserts thereon and is used for positioning the die inserts between the two body portions is also provided. The rack includes a die-insert-ejection system for pushing the die inserts into the respective body portions. Each body portion may include a plurality of cooling inserts connected in parallel between inlet and outlet channels of a corresponding body portion. One body portion may include a plurality of alignment blocks protruding therefrom, while the other body portion may have a plurality of recesses for respectively receiving the alignment blocks. Each recess may have adjustable sidewalls for adjusting alignment between the body portions.

Abstract: An apparatus for cutting an electrical wiring line includes a laser generator for generating a laser beam, an optical beam branching element for branching a laser beam generated by the laser generator into a plurality of branch beams, and a condenser element for condensing the branch beams branched by the optical beam branching element (the optical beam branching element can also serve as the condenser element). The condenser element may be a condenser lens which is separate from the optical beam branching element. The power and the focal depth of the branch beam may be adjusted. When the substrate has a transparency to the laser beam, the branch beam is directed to the electrical wiring line formed on the substrate from the opposite side to the surface having the electrical wiring line.

Abstract: An energy beam machining system includes an emitter for emitting an energy beam and beam adjusting optics, such as a zoom telescope, for adjusting the pupil size of the system to multiple values. The adjusting of the pupil size can be carried out automatically, semi-automatically, or manually. In manual modes, instructions can be presented to the operator (e.g., via a monitor or pre-programmed audio instruction) indicating how to adjust pupil size. A focus lens focuses the adjusted beam directed along each path at a different focal point within a scan field encompassed in the field of view of the focus lens. Beam directing optics are configured to enable multiple scan fields within the field of view of the focus lens.

Abstract: The present invention concerns an element for the casting of a liquid metal, comprising a base body made from a refractory material, said body comprising an outer surface and an inner surface defining a pouring channel for the casting of the liquid metal. This element is characterized in that at least a part of the element inner surface is coated with an insulating coating forming, at the metal liquid contact, a gas impermeable layer. Such an element has an excellent thermal shock resistance which permits its use without preheating. Then a layer reducing advantageously the gas permeability is formed.

Abstract: According to the prior art, through-holes in components are often introduced after the production (casting) of the component. This entails additional outlay in terms of time and equipment. The time required can be considerably shortened if a casting mold is designed in such a way that the through-hole is at least in part formed by corresponding projections being formed on the inner wall and/or the outer wall of the casting mold.

Abstract: A metal flow system, for use in casting aluminium alloy using a pressure casting machine, is provided by a component of a die or mould assembly, for the machine, which defines a die cavity. The component defines at least part of an alloy flow path for the flow of aluminium alloy from a pressurized source of substantially molten aluminium alloy of the machine to the die cavity. The flow path includes at least one runner and a controlled expansion port, referred to also as a CEP, which has an inlet through which the CEP is able to receive aluminium alloy from the runner and an outlet through which aluminium alloy is able to flow from the CEP for filling the die cavity.