An air intake hose for a vehicle may include a blow molding portion formed in a hollow hose shape by blow molding, an injection molding portion formed in a hollow hose shape by injection molding, and a coupling portion formed at one end of the blow molding portion, wherein the blow molding portion and the injection molding portion may be coupled with each other by injecting a material forming the injection molding portion into an injection mold in a state in which the coupling portion may be inserted in the injection mold.

[Problem]

To provide a bent product from an integrally extrusion molded body without the loss of lightweight properties or the like.

[Solution]

A bent product (10) that is formed by bending an integrally extrusion-formed body and has: a metal core material (20) provided with a tube-shaped peripheral wall (21) and a first partition wall (23) that extends in the longitudinal direction of the tube shape and divides the inner space of the peripheral wall in the direction of the major axis of the cross section perpendicular to the longitudinal direction of the tube shape; and a covering layer (40) that is formed on the outer surface of the core material and contains at least a thermoplastic resin. The thickness (t) of the peripheral wall is 0.8-2.3 mm, and a reinforcing means is provided to the inner space side of the peripheral wall at a section (25) thereof to the inside of the bend.

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 for manufacturing a hollow part with a branch, including a resin filling step of filling a mold, the mold having a main cavity in which a hollowing piece is placed, and a branch cavity to communicate with the main cavity, in which a slide shaft is inserted to advance and withdraw, and that forms a branch pipe portion in an annular space between the branch cavity and the slide shaft, a step of forming a hollow main pipe portion by moving the hollowing piece to force excess resin out of the main cavity, and a shaft removing step of withdrawing the slide shaft to form a branch hollow portion, the hollow part with a branch being made of a resin and having the branch pipe portion integrally connected to the main pipe portion such that the main hollow portion and the branch hollow portion communicate with each other.

A nylon tube automatic thermoforming apparatus includes a main body, a conveying assembly, a heating assembly and a tube bending assembly. The heating assembly includes an oven communicated with the conveying assembly and an electrically heated cylinder arranged between the oven and the tube bending assembly. A heating coil is arranged in the electrically heated cylinder. A nylon tube is conveyed from the conveying assembly and enters the tube bending assembly via the oven and the heating coil. The electrically heated cylinder and the tube bending assembly are arranged outside the main body. A nylon tube shaping process includes the steps of drawing, heating inside a main body, heating outside the main body, bending, staying, feeding, angle adjusting, repeating the above steps until the length and the curvature of the nylon tube meet the requirements, and cutting off.

The invention relates to a method of manufacturing an elongated article having a shaft and a functional head section. The method includes the steps of providing a dimensionally stable core mandrel; overlaying first reinforcing fibers onto the core mandrel to form one or more first wall parts; providing at least one shaping element to the overlaid core mandrel; overlaying second reinforcing fibers onto the core mandrel and the at least one shaping element to form one or more second wall parts; and providing a matrix material and consolidating the matrix material. The core mandrel is provided to form an elongated article having a well defined inner cavity. Overlaying fibers is preferably performed by in-situ braiding. The cross-section of the elongated article includes fiber reinforced wall parts that impart stiffness to the article. The inner cavity may be filled with weight distributing element(s).

A method for manufacturing a connector-integrated resin tube includes: a fitting step in which an end portion of a resin tube material including a straight tube portion is fitted into an end portion of a connector of a tubular shape; a joining step in which the end portion of the resin tube material and the end portion of the connector that have been fitted are joined by laser welding; a heating holding step in which a posture holding die including a bending processing portion for bending processing of the straight tube portion is used to hold the straight tube portion in a heated and bent state at the bending processing portion of the posture holding die; and a cooling step in which the straight tube portion is cooled.

A resin pipe is manufactured by injecting a molten resin from one end portion toward the other end portion of a cavity formed in a mold by an injector and filling the molten resin in the cavity, and then introducing a fluid or solid assist material by an assist material injection device from the other end portion toward the one end portion of the cavity to discharge an extra molten resin from the cavity, thereby curing the molten resin in a cylindrical shape remaining in the cavity. The extra molten resin discharged from the cavity is caused to flow back into the injector, and the back-flowed molten resin is injected and used from the one end portion toward the other end portion of the cavity by the injector when manufacturing a next new resin pipe.

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 production method and device for a curved resin pipe via resin injection molding that uses an assist material. An inner curve part and/or an outer curve part of a pre-selected curved section of a cavity which is formed in a mold is configured from a temperature-adjustable piece section. After molten resin is injected into the cavity from an injection molding device, the temperature of the piece section is controlled by a control unit such that the inner curve part has a lower temperature than the outer curve part, and an assist material is injected into the cavity from an assist material injection unit and is passed through the cavity so as to form a pipe path. The resin remaining in the cavity is cured to produce a curved resin pipe.