An apparatus and a method for manufacturing a reactor capable of both absorbing a dimensional variation of a core and preventing deformation due to a resin pressure during molding are provided. An apparatus for manufacturing a reactor is provided with a core. The apparatus includes a mold including a cavity for housing the core. The mold includes a plurality of pins protruding into the cavity. When the core is disposed in the cavity, at least one of the plurality of pins is not fixed, and each of the pins functions as a positioning pin. When a molded article is molded, the pin is fixed, and each pin functions as a core support pin for supporting the core against a resin pressure during molding.

A method includes disposing fibrous material with a first mandrel, a second mandrel and a first mold section, the first mandrel including a first base, the second mandrel including a second base, and the first mold section including a support surface; arranging the first base on the support surface; arranging the second base on the support surface adjacent a first side of the first base, the arranging including moving the second base along a first trajectory that is substantially coincident with a corner between the first side of the first base and the support surface; arranging a second mold section with the first mold section to provide a mold, where the first mandrel and the second mandrel are between the first and the second mold sections; injecting resin into the mold to engage the fibrous material; and curing the resin to form a composite component.

An injection mold with a centering device includes a die-holding plate with a cavity-forming die unit, a core-holding plate with a core unit, and a stripping plate between the core-holding and die-holding plates. The centering device has a insert and a mount with a clearance, which is rotationally symmetrical about a center axis and is for receiving the insert. The insert has an opening for receiving the core unit and the insert and the clearance of the mount are insertable in a torsion-free manner in the clearance of the mount in at least three positions rotatable about a center axis of the insert, and the center axis of the clearance and the center axis of the insert overlie one another. A center axis of the opening of the insert is arranged eccentrically in relation to the center axis of the insert by an offset. The centering unit is arranged in the stripping plate.

A pre-assembled female mould arrangement for being installed on a moulding machine, the pre-assembled female mould arrangement comprising: an annular forming element, extending about an axis and delimiting a forming cavity about said axis; a plate element, which delimits the forming cavity transversely to said axis; a peripheral annular component that surrounds at least partially the annular forming element; a supporting base;
a fastening element which is so mounted as to render the annular forming element fixed relative to the plate element.

A mould for vulcanising tyres for vehicle wheels, comprising—at least one sidewall plate (3) on which a moulding surface (4) is defined,—a removable insert (10) arranged to be received in a seat (5) which is made in said sidewall plate and open on said moulding surface, said insert comprising a main body (11; 111) on which a base surface (12) is defined which is intended for contacting a portion of a sidewall (52) of the green tyre, and—a retaining member (20) for retaining said insert (10) inside said seat. The retaining member comprises at least one locking element which is mounted on one out of said insert and said sidewall plate and can be moved in an operating direction (Y) between a locking position, in which said insert is retained inside said seat, and a release position, in which said insert is free to leave said seat.

A device and a method for loading prefabricated parts into a molding tool of a press for the production of molded parts, in particular for the production of elastomer molded parts. For this purpose, the device comprises a plate-like carrier element with a top and a bottom intended for attachment on or to the press and a holding device for accommodating at least one interchangeable platen equipped with the parts. The holding unit is arranged on the supporting element at a clear distance from its bottom and the interchangeable platen comprises a plurality of passage openings to accommodate the parts. Furthermore, the device comprises a platen with pins which are arranged between the bottom of the supporting element and the holding unit, wherein the pins align with the passage openings.

An example mold assembly includes a first core, a second core, and a retaining cap. The first core defines an insert seat configured to receive a mold insert. The first core and the second core are configured to define a mold volume adjacent the mold insert. The retaining cap is disposed about a curved end portion defined by the second core, and defines a curved cap surface in contact with the curved end portion. The retaining cap is configured to secure the second core at a predetermined orientation relative to the first core within predetermined tolerances. An example technique includes positioning a mold insert in the mold assembly, disposing the retaining cap about the second core, securing the second core at a predetermined orientation relative to the first core within predetermined tolerances, and depositing mold material within the mold volume.

Systems and methods for casting solid propellants include a mandrel for forming geometric features in a perforation of a propellant grain. In various embodiments, the mandrel includes a frangible portion that is removed from the propellant grain after the propellant grain has cured around the mandrel. A second portion of the mandrel may be left behind in the propellant grain. The mandrel may include a support structured disposed in the through hole of the mandrel. The support structure may include a plurality of longitudinal channels for directed exhaust gasses through the mandrel upon ignition of the propellant grain.

A pre-assembled female mould arrangement for being installed on a moulding machine, the pre-assembled female mould arrangement comprising: an annular forming element, extending about an axis and delimiting a forming cavity about said axis; a plate element, which delimits the forming cavity transversely to said axis; a peripheral annular component that surrounds at least partially the annular forming element; a supporting base;
a fastening element which is so mounted as to render the annular forming element fixed relative to the plate element.

A method for assembling a female mould on a moulding machine, comprises the steps of: providing a pre-assembled female mould arrangement, the pre-assembled female mould arrangement comprising a plurality of components including at least a base, a forming device having a forming cavity and a fastening element which renders the forming device fixed relative to the base; placing the pre-assembled female mould arrangement on a support of the moulding machine; fixing the pre-assembled female mould arrangement to the support.