A sheet member includes a pair of main surfaces opposing each other. A maximum thickness that is a maximum interval between the pair of main surfaces is 40 μm or more and 450 μm or less. The sheet member has a region in which a plurality of coherent pattern lines appear when viewed from a direction facing the pair of main surfaces, the plurality of coherent pattern lines being arranged at intervals in a direction in which one edge portion and another edge portion opposing the one edge portion oppose each other, and a pair in the plurality of coherent pattern lines adjacent to each other do not intersect.

An injection mold capable of planing and cutting gates in an inside thereof and a planing and cutting method are provided. The injection mold includes a blade fixed block arranged between a moving mold and a fixed mold. Blades arranged on the blade fixed block and configured for cutting off gate condensed-material. The mold includes ejectors for ejecting out the gate condensed material and the blade fixed block. Runners formed between the blade fixed block and the fixed mold. Cut holes for communicating runners and gates are formed in blades. Ejector holes for penetrating the ejectors are formed in portions of the blade fixed block which correspond to bottoms of runners. The blade fixed block moves relative to the moving mold in a mold opening direction. The moving mold is provided with a limiting mechanism for limiting the blade fixed block after injection molding parts are separated from a cavity.

An aspect of mold for producing an end plate of a planetary gear carrier includes a mold body and a cylindrical protrusion extending from a front surface of the mold body. The cylindrical protrusion defines a cylindrical interior space fluidly linked to an interior space of the mold body. The mold also includes an injection gate disposed on a rear surface of the mold body and aligned with a longitudinal axis of the cylindrical protrusion, wherein the injection gate is configured to allow an injection nozzle to inject a molding material into the interior space from an exterior of the mold body. In some aspects, the molding material includes additives that can improve the properties of the resulting molded part. Other aspects of the present disclosure include molded carriers for planetary gear devices, and related processes or methods for making similar molded parts.

A method for producing a well or a well strip made of plastic, as used in the pharmaceutical industry in microtiter systems is presented. The wells typically have undercuts and the well strips are connected to each other by connecting ribs. In order to produce a well with a larger undercut height or a well strip with higher connecting ribs, as the case may be, the method provides that the plastic, which is initially still liquid, is pressed through a portion of a runner which is arranged in a slider and out of the slider into a cavity of an injection mold.

An injection mold for producing a sprinkler head part and related injection molding methods are described. The sprinkler head part includes a first, second, third and fourth mold portions. The first and second mold portions include first and second shaping elements structured to cooperatively form a body including a substantially cylindrical portion and a substantially planar portion, and two frame arms extending from the substantially planar portion of the body. The third mold portion includes a shaping element structured to form an orifice in the body of the sprinkler head. The fourth mold portion includes a shaping element structured to form a cross member connecting the two frame arms. The injection methods include injecting a composite material in molten form into the mold to form the molded sprinkler head part. The composite material includes thermoplastic polymeric resin and a plurality of reinforcing fibers dispersed in the resin.

Mold including a first shell having a cavity, a second shell having a projection, and an intermediate shell having a projection suitable for being coupled in the cavity of the first shell and a cavity suitable for being coupled with the projection of the second shell. The second shell includes a first injection channel extending from an inlet hole in a side wall of the second shell to an outlet hole in the projection of the second shell. The intermediate shell has a second injection channel extending from an inlet hole in a side wall of the intermediate shell to an outlet hole in the projection of the intermediate shell.

A manufacturing method for manufacturing a pipe joint including a circular tube-shaped housing and an elastically deformable circular tube-shaped seal member provided at an inner peripheral side of the housing. The pipe joint manufacturing method includes a process of placing the seal member inside a mold in a state in which the seal member is fitted to an outer periphery of a retaining pin, and a process of causing a molten resin to flow into the mold so as to mold the housing in a state in which the seal member is cooled through the retaining pin.

A semiconductor device of embodiments includes: a die pad; a semiconductor chip fixed on the die pad; and a sealing resin covering the semiconductor chip and at least a part of the die pad. The sealing resin has a first protruding portion provided on one side surface and a second protruding portion provided on another side surface. The cross-sectional area of the first protruding portion is equal to or more than 10% of the maximum cross-sectional area of the sealing resin. The cross-sectional area of the second protruding portion is equal to or more than 10%; of the maximum cross-sectional area. The maximum cross-sectional area is equal to or more than 6 mm.sup.2.

According to one embodiment, a mold includes a substrate clamping surface, a cavity, a suction part, a vent, an intermediate cavity, and an opening/closing part. The substrate clamping surface contacts a surface of a processing substrate. The cavity is recessed from the substrate clamping surface. The suction part is recessed from the substrate clamping surface. The vent is provided on a path between the cavity and the suction part, communicates with the cavity, is recessed from the substrate clamping surface to a vent depth. The intermediate cavity is provided between the vent and the suction part on the path, communicates with the vent, and is recessed from the substrate clamping surface to an intermediate cavity depth deeper than the vent depth. The opening/closing part opens and closes the path and is provided between the intermediate cavity and the suction part on the path.

The resin injection gate is disposed at the pillar part. When the bearing cage is divided into first and second regions by an imaginary line connecting the resin injection gate and a weld to be formed at a position radially facing the resin injection gate, a resin reservoir that can store therein the melted resin is formed at the pillar part in only one of the regions. A circumferential distance between the resin reservoir and the weld is smaller than a circumferential distance between the resin reservoir and the resin injection gate. A cross-sectional area of a communicating part of the resin reservoir, which is configured to communicate with the pillar part, is equal to or less than a quarter of a cross-sectional area of the resin injection gate.