A plastic product having magnetic properties and a method for making the same is provided. The method comprises creating a mixture of a nylon and a metal, melting the mixture to create a melted mixture of the metal suspended in the nylon, injecting the melted mixture into a mold to harden the melted mixture and shape the melted mixture into the product's shape, applying an electrical current to the mold while the mixture is in a viscous state to align the poles of the metal suspended in the nylon in the mixture in a single direction before the mixture has hardened, and applying a magnetic field to the hardened mixture to provide the product with magnetic properties.

This disclosure describes optical assemblies that can be fabricated, for example, using wafer-level processes. The process can include providing a wafer stack that includes an optics wafer, and molding spacers directly onto the surface of the optics wafer. The spacers can be molded, for example, using a vacuum injection technique such that they adhere to the optics wafer without adhesive.

Provided is a liquid silicone molding die, including a first mold base, having at least one first molding zone and a feed hole on one side thereof and having a feeding mechanism coupled to the feed hole on the other side thereof, wherein the feeding mechanism is coupled to an injection machine to inject a raw material, and a heating element is provided around the first molding zone; and a second mold base, operatively facing or separating from the first mold base, corresponding to the side of the first mold base and correspondingly provided with a second molding zone, an injection channel, a sealing ring groove and a sealing ring.

An injection apparatus including a plasticizing unit (2) that plasticizes a raw material resin and an injection unit (3) that injects a plasticized molten resin. The plasticizing unit includes a heating cylinder (20) having a foaming gas injection valve and a screw (21) provided inside the heating cylinder. The rotation and advance and retreat movements of the screw are controlled such that a raw material resin is plasticized by the screw and a foaming gas injected from a foaming gas injection valve is dissolved in the plasticized molten resin. After the screw retreats to a prescribed position according as the molten resin accumulates in the front end side of the heating cylinder by the screw that is rotating, the screw advances with rotating to cause the molten resin which has been accumulated in the front end side of the heating cylinder to be transferred to the injection unit.

A method for producing a foam-molded product uses a producing apparatus including a plasticizing cylinder. The plasticizing cylinder has a plasticization zone, a starvation zone, and an introducing port which is formed in the plasticizing cylinder and via which a physical foaming agent is introduced into the starvation zone. The method includes: plasticizing and melting a thermoplastic resin into a molten resin in the plasticization zone; introducing a pressurized fluid containing the physical foaming agent having a fixed pressure into the starvation zone; allowing the molten resin to be in the starved state in the starvation zone; bringing the molten resin in the starved state into contact with the pressurized fluid having the fixed pressure in the starvation zone; and molding the molten resin into the foam-molded product. At least one pressure boosting part is provided in the starvation zone.

A method for manufacturing sustainable products with a blown, foam structure, wherein a mass comprising at least natural polymers such as starch is passed under pressure into a mold cavity (4) or through a mold die, and the mass is heated in the mold in a manner such as to stabilize the foamed structure to form the product, wherein the method comprises prefoaming of the mass prior to injection in the mold. Preferably, the prefoamed mass is kept under pressure until insertion in the mold. The invention further relates to an apparatus to be used in said method.

An injection molding machine with an injection system and a clamping system. The injection system may include a removable injection module defining a portion of the material flow path. The injection module may include all of parts that come in contact with the material between the material source and the mold. The injection module may include a valve arrangement movable between a fill position to load the injection module with material and an inject position to eject material from the injection module into the mold. The actuators for the injection module may be supported on the machine rather than the injection module. The clamping system may include a platen linear actuator to open and close the mold, and a hydraulic clamping system to apply clamping force to the closed mold. The hydraulic clamping system may include a free-float valve manifold assembly that selectively places the hydraulic cylinders in free-float mode.

An injection molding machine with an injection system and a clamping system. The injection system may include a removable injection module defining a portion of the material flow path. The injection module may include all of parts that come in contact with the material between the material source and the mold. The injection module may include a valve arrangement movable between a fill position to load the injection module with material and an inject position to eject material from the injection module into the mold. The actuators for the injection module may be supported on the machine rather than the injection module. The clamping system may include a platen linear actuator to open and close the mold, and a hydraulic clamping system to apply clamping force to the closed mold. The hydraulic clamping system may include a free-float valve manifold assembly that selectively places the hydraulic cylinders in free-float mode.

An injection apparatus including a plasticizing unit (2) that plasticizes a raw material resin and an injection unit (3) that injects a plasticized molten resin. The plasticizing unit includes a heating cylinder (20) having a foaming gas injection valve and a screw (21) provided inside the heating cylinder. The rotation and advance and retreat movements of the screw are controlled such that a raw material resin is plasticized by the screw and a foaming gas injected from a foaming gas injection valve is dissolved in the plasticized molten resin. After the screw retreats to a prescribed position according as the molten resin accumulates in the front end side of the heating cylinder by the screw that is rotating, the screw advances with rotating to cause the molten resin which has been accumulated in the front end side of the heating cylinder to be transferred to the injection unit.

A housing assembly includes a housing, a printed circuit board (PCB) contained in a housing, and a cup-shaped cap having an interior and a flange portion. A tall component extending from the PCB is covered by the cap such that the tall component is disposed in the interior of the cap and the flange portion of the cap engages the PCB. A vacuum is applied and while maintaining the vacuum, an encapsulant is introduced into the housing to a level so as to cover the PCB and certain other components not the relatively taller component(s). When the vacuum is released, a pressure differential between the environmental pressure and the vacuum remaining in the cap interior forces encapsulant into the cap interior to a level higher than that outside of the cap. A multi-level height potting process is achieved.