An object of the invention is to provide a blow-molded foam which has homogeneous foamed cells in size, is light in weight, and is excellent in surface smoothness, and a process for producing the same. The invention is directed to a blow-molded foam 1 having a wall portion formed in such a manner that a thermoplastic resin containing a foaming agent mixed therewith is subjected to blow molding. Herein, the wall portion has a closed cell structure in which a plurality of foamed cells are contained. The wall portion has an expansion ratio of not less than 2.0 times. The wall portion has an outer face having a center-line average surface roughness Ra of less than 9.0 m. The foamed cell has a cell diameter having a standard deviation of less than 40 m in a thickness direction of the wall portion.

A tool includes a head that extends form the flexible section, an emitter within the head; and a nozzle to eject a cooling fluid therefrom. A method of additively manufacturing a component including delivering series of thermal shocks to a conglomerated powder within an internal passage of an additively manufactured component to facilitate removal of the conglomerated powder.

A method is provided for manufacturing. During this method, a woven fiber sleeve is disposed over a mandrel to provide an overbraided mandrel. The woven fiber sleeve includes a base section and a mount section. The base section is wrapped circumferentially around the mandrel and extends longitudinally along the mandrel between a first end and a second end. The mount section is disposed longitudinally at an intermediate location between the first end and the second end. The mount section projects out from the base section. The overbraided mandrel is arranged with tooling. A polymer material is disposed with the woven fiber sleeve to provide a duct structure. The duct structure includes a tubular duct and an annular flange. The tubular duct is formed by the base section. The annular flange is formed by the mount section.

A method of sub-ambient pressure processing of blow-molded polymer foams and skin-over-foam sandwich panel configurations for lightweight components having improved structural properties. The method can create either skinned or un-skinned foams that offer smooth interior and exterior surfaces, zero or controlled surface porosity, skins of pre-defined thickness, and foam cells that are expanded and oriented normal to the material plane, effectively spherical or polyhedral in nature, and offering improved bending and compressive strength.

A core metal includes, on an outer circumference thereof, a plurality of attachment surfaces to which a plurality of strings are attached, and a plurality of guided portions are formed along an axial direction of the core metal and disposed between two of the attachment surfaces. A string supply device includes a string supply unit that supplies the strings to the outer circumference of the core metal, an attaching unit that arranges and attaches the strings on the attachment surfaces of the core metal in a circumferential direction of the core metal, and a plurality of guiding units, in contact with the guided portions of the core metal, which guides the core metal.

A curved tube structure, including: a tube main body including a bent portion at one portion in an axis line direction; and an enlarged cross-section portion formed along the axis line direction of the tube main body in an inner periphery inside a bending direction of the bent portion for enlarging a cross-section area of the tube main body.

A tool includes a head that extends form the flexible section, an emitter within the head; and a nozzle to eject a cooling fluid therefrom. A method of additively manufacturing a component including delivering series of thermal shocks to a conglomerated powder within an internal passage of an additively manufactured component to facilitate removal of the conglomerated powder.

A snorkeling tube structure with a tube body and a partition portion is provided. The tube body is formed along an axis and has an outer surface and an inner surface which encircles the axis to define an air passage; the axis includes a curved section. The partition portion is formed integrally with the tube body along the axis, and disposed on the inner surface of tube body to divide the air passage into an intake passage and an outtake passage. A method of manufacturing a snorkeling tube structure is also provided, including the following steps: forming a parison including a first passage and a second passage; placing the parison in a mold cavity; injecting air into the first and second passages to inflate the parison towards a wall of the mold cavity; and removing the inflated parison from the mold to get a snorkeling tube structure.

A molded resin article and a method of manufacturing a molded resin article that suppresses generation of portions of reduced bonding strength while suppressing separation at the interface between a bond portion (secondary molding resin) on the one hand and a first body and a second body on the other. The molded resin article has a first contact surface formed perpendicular to the main surface of the first body and contacting the second body, a second contact surface formed perpendicular to the main surface of the second body and contacting the first body, and a bond portion bonding together the first body and the second body, formed by injecting molten resin into a resin channel formed by contacting the first contact surface against the second body and contacting the second contact surface against the first body and solidifying the molten resin.

The invention relates to an injection molding device for manufacturing tubes having an internal thread, having a tool that forms an article cavity, having means for filling the article cavity with a thermoplastic molding compound, having an injection device for injecting a fluid toward a projectile to be driven through the article cavity, wherein the injection device comprises a projectile carrier having at least one injection nozzle and having at least one projectile receptacle for a projectile as a displacement member for the molding compound, wherein the projectile carrier at an end that is remote from the projectile receptacle is provided with a thread-bearing stamping core which is adjustable relative to the projectile carrier between a thread-forming first position and a demolded second position, wherein the stamping core in the thread-forming position plunges into the article cavity and seals the latter.