A method of manufacturing a heat sink according to one aspect of the present disclosure is a method of manufacturing a heat sink including a base material having a surface on which a heat-radiation resin-coated film is formed, the method comprising: taking the base material out of a die-casting mold after the base material is die-cast; and forming the heat-radiation resin-coated film on the surface of the base material using residual heat of the base material taken out of the die-casting mold. In forming the heat-radiation resin-coated film, the heat-radiation resin-coated film is formed on the surface of the base material by bonding a heat-radiation resin film to the surface of the base material.

Proposed are an apparatus for molding a material, and a method for molding a material by using the apparatus. The apparatus includes first and second fixed platens (110 and 120) provided as a pair and spaced a predetermined distance from each other by tie bars (150), a movable platen (140) movable along the tie bars (150) between the first and second fixed platens (110 and 120), a mold (200) which is provided with a movable mold (220) and a fixed mold (240) and which forms a molding space (260) that is capable of being open or closed as the movable mold (220) moves in a direction toward or away from the fixed mold (240), and a pressing block (300) selectively positioned between the first fixed platen (110) and the movable mold (220) such that the pressing block is capable of applying a pressure to the movable mold (220).

Examples of techniques for molding molded components are described herein. In an example, a molding apparatus for molding a molded component includes a first mold-half comprising a mold-facing surface, and a slider member mounted on the first mold-half and movable substantially along the mold-facing surface. The first mold-half and the slider member can form a part of a mold cavity therebetween. Further, the molding apparatus includes a second mold-half to cooperate with the first mold-half to complete the mold cavity with the first mold-half and the slider member. The slider member is movable to modify a draft angle provided in the mold cavity.

A shot sleeve for use in a die cast assembly has a shot sleeve body extending along an axis and having a bore for receiving a plunger. An insert is secured at a shot end of the shot sleeve body. A die cast assembly is also disclosed.

A die casting machine includes a stationary die half, an ejector holder block, and die core pieces that extend through the ejector holder block, defining a die cavity when closed. An ejector box backstops the closed ejector holder block and die core pieces. Melt is injected into the die cavity. After a first dwell time, the ejector box is retracted away from the ejector holder block while a closing force is simultaneously applied to maintain the ejector holder block closed on the stationary die half, and the die core pieces are retracted out of the die cavity. After a second dwell time, the melt completely freezes and the ejector block is separated from the stationary die half, opening the die cavity from which the resulting die cast block can be retrieved.

An assembly system includes a molding machine that molds first parts and second parts and a robot having an assembly unit including a first holder that holds the first parts and a second holder that holds the second parts with each other. The first parts and the second parts that are molded by the molding machine are removed from the mold while being held by the first holder and the second holder of the robot. At least one of the first holder and the second holder is moved relative to the other so as to assemble the first parts and the second parts without releasing the first parts held by the first holder and the second parts held by the second holder.

A mold (1) for injection-compression molding includes a punch (2) and a matrix (3) suitable to close on the punch (2) to delimit with this an injection chamber (10) to contain the material to be injected. The matrix (3) and punch (2) are axially movable between them with respect to an axial direction (Y-Y) of opening/closing of the mold (1). The mold has a perimetral ring (4) slidingly associated to the punch (2) or the matrix (3), along the axial direction (Y-Y), suitable to define, together with the matrix (3) and the punch (2), the profile of the injection chamber (10). The perimetral ring (4) includes an interface profile (43) engaging with the matrix (3) or with the punch (2), equipped with a particular geometry generating in the closing phase of the mold (1), a compression force of the ring (4) towards the inside of the mold (1).

A die casting machine comprises a carousel and a plurality of molds disposed around the carousel. The carousel rotates about a central axis, such that each of the plurality of molds comes into a position for casting in turn. Each mold comprises a toggle mechanism and extraction pins. A gripping mechanism may extend up through a hole in the carousel table to couple the toggle mechanism to an actuator. At least one of the pins may comprise a pin brake such that the pins remain in position when the mold is opened, suspending a newly cast metal part in mid-air, when the brake is activated. When the brake is deactivated, the pins may retract, and the part may be removed without damaging the cast part.

Provided is a casting die 1 including a base 3, a lower mold 4, a horizontal sliding mold 5, and an upper mold 6. The lower mold 4 is configured by a lower mold body 10 and a lower mold stage 11. A guide member 17 is mounted on the lower mold stage 11 so as to freely move in the up and down direction with respect to the lower mold stage 11. The horizontal sliding mold 5 is configured to slide on the guide member 17 and the lower mold body 10. The guide member 17 is provided with a locking part 17a which locks with a lateral edge part of the lower mold body 10 when the lower mold body 10 is separated upward from the lower mold stage 11, so that the lower mold body 10 and the guide member 17 separate upward together.

A die casting machine includes a stationary die half, an ejector holder block, and die core pieces that extend through the ejector holder block, defining a die cavity when closed. An ejector box backstops the closed ejector holder block and die core pieces. Melt is injected into the die cavity. After a first dwell time, the ejector box is retracted away from the ejector holder block while a closing force is simultaneously applied to maintain the ejector holder block closed on the stationary die half, and the die core pieces are retracted out of the die cavity. After a second dwell time, the melt completely freezes and the ejector block is separated from the stationary die half, opening the die cavity from which the resulting die cast block can be retrieved.