Abstract:
Au cours de ce procédé, une quantité d'un mélange expansible est coulée dans un moule (1), après quoi, le moule est obturé à l'aide d'un bouchon (16) à travers lequel une dépression est créé dans la chambre (4) du moule (1) pour permettre le moussage du mélange. La dépression est maintenue un certain temps après que le mélange moussant ait rempli la totalité du volume du moule. A la fin de la période de polymérisation du mélange moussant, la dépression peut être ré-appliquée au moule, de préférence pendant plusieurs cycles pour provoquer l'éclatement des cellules de la mousse obtenue.
Abstract:
The present invention relates to a shoe injection mold and a shoe injection molding process thereof, the shoe injection mold comprising a last, an outer die, one or more injection nozzles and a matching mold opening-closing mechanism, wherein the outer die comprises a upper die and a first bottom die matched mutually, the bottom of the last is provided with one or more injection troughs, one or more injection nozzle through-holes are arranged opposite to said one or more injection troughs on the first bottom die. The injection nozzle passes through the opposite injection nozzle through-hole with its inner end located in a corresponding injection trough and its outer end located outside the outer die when the shoe injection mold is closed. In an injection molding process, a sock-shaped fabric upper covered on the last is pressed from the outer surface of the last to the inner surface of the outer die by injected plastic material. The plastic material will be full of the cavity of the mold. A shoe made by this injection molding process has a fabric vamp.
Abstract:
A seal molding system may include a mold body having a mold inner geometry formed complementary to a fitting outer geometry of a fitting. The mold body may have a mold base formed complementary to a panel surface. The mold body may include an injection hole for injecting sealant into the mold cavity, and a vent hole for venting air and sealant from the mold cavity.
Abstract:
This invention relates generally to an apparatus for casting a portion of a tire or other article of manufacture, and, more specifically, to an apparatus that has a gate design that has a circular runner and concentric channel or waste reservoir for separating off-ratio material before it enters the cavity that forms a portion of the fire or oilier article of manufacture. The design may further include a passage that connects the runner to the waste reservoir as well as an air vent that allows trapped gas or air to exit the waste reservoir as it fills with waste material, a valve that Is operative!)′ associated with the passage for closing and opening the passage at appropriate times, and a nozzle for initially introducing material into the waste reservoir and subsequently into runner.
Abstract:
Système de moulage par injection simultanée de matière plastique liquide dans plusieurs cavités moulantes, dans lequel chaque cavité moulante 4 est alimentée en matière plastique liquide par un canal 6 aboutissant au seuil 5 d'injection dans la cavité moulante 4. Dans chaque canal 6, une restriction assure une perte de charge supérieure à la somme des pertes de charge existant en aval de ladite restriction.
Abstract:
An apparatus and method for filling a mold (10) for casting an optical lens. Two molding shells (12A, 12B) and a closure member (14) form the mold (10) with a molding cavity (16). To fill the mold (10), a fluid lens-forming material is introduced into the molding cavity (16) through a casting opening (20) formed in the closure member (14). Air is vented out during the filling process through a venting opening (18) also formed in the closure member (14). Both the casting opening (20) and the venting opening (18) are located in the upper portion of the molding cavity (16) but spaced apart from each other at an acute angle.
Abstract:
An apparatus and method for filling a mold (10) for casting an optical lens. Two molding shells (12A, 12B) and a closure member (14) form the mold (10) with a molding cavity (16). To fill the mold (10), a fluid lens-forming material is introduced into the molding cavity (16) through a casting opening (20) formed in the closure member (14). Air is vented out during the filling process through a venting opening (18) also formed in the closure member (14). Both the casting opening (20) and the venting opening (18) are located in the upper portion of the molding cavity (16) but spaced apart from each other at an acute angle.
Abstract:
Unique side-fill mold assembly and method for making a lens wherein the mold assembly includes a gasket (24) having a plurality of side port holes (14, 16, 18) which allow filling of the mold assembly with a thermosetting resin and allow egress of air trapped within the mold assembly.
Abstract:
A casting device with which, by introducing a thermocurable plastics into a heatable casting mould (1), the plastics is thermally cured in that casting mould at least to such a degree that a casting moulded in that manner can be released from the mould, comprises a reservoir for the thermocurable plastics and a feed means for feeding plastics from the reservoir into the casting mould (1), which mould has an inlet opening that extends at least along a substantial portion of the length of the casting to be moulded, wherein the casting device comprises a separate adapter (2) in which the feed means (20, 221, 23) for the plastics is arranged and which can be connected to the casting mould (1) in such a manner that, when the adapter (2) has been connected, an outlet opening (23) provided in the adapter (2) is arranged sealed to and substantially congruent with the inlet opening of the casting mould (1).