A power cable comprising a: (A) Conductor, (B) First semiconductor in contact with the conductor; (C) First insulation layer in contact with the first semiconductor; (D) Second semiconductor layer in contact with the first insulation layer; (E) Third semiconductor layer in contact with the second semiconductor layer; (F) Second insulation layer in contact with the third semiconductor layer; and (G) Fourth semiconductor layer in contact with the second insulation layer.

A sealant forming nozzle is disposed to seal an object that a sectional shape in a first plane is a stair shape. The sealant forming nozzle includes a shaping section and a guide section. The shaping section includes a shaping surface orthogonal to the first plane, and a sealant output hole to supply a sealant to a space surrounded by the object and the shaping surface. The guide section has a guide surface. The guide surface is orthogonal to the first plane and formed to have a line contact with a corner section of an upper step of the stair shape.

A cross-head die assembly for use with an extruder is described. The cross-head die assembly includes: an inlet section having an inlet for communicating flow from the extruder to one or more flow channels formed in a support block; and an outlet, a removably mounted die located at the outlet and in fluid communication with the one or more flow channels; said support block further comprising an interior slot extending from a first side of the support block to an outlet passageway; a removable cassette positioned in the interior slot, wherein the front end of the removable cassette is positioned to seal the outlet passageway of the slot so that the slot is isolated from the flow.

Provided is a thermoplastic composite, a method for preparing a thermoplastic composite, and an injection-molded product. The thermoplastic composite comprises 35-75% by weight of a thermoplastic resin, 5-45% by weight of a non-cellulosic organic fiber, and 5-20%) by weight of hollow glass microspheres, based on 100% by weight of the total weight of the thermoplastic composite.

An additive manufacturing apparatus includes a discharging unit that discharges resin powder into a molding tank; a supplying unit that supplies a fiber into the molding tank; and a solidifying unit that solidifies at least part of a resin layer including the fiber and formed in the molding tank.

The invention relates to a process for producing a glass fiber-reinforced thermoplastic polymer composition, comprising the sequential steps of: a) unwinding from a first package of at least one first continuous glass multifilament strand having a first filament thickness t1 and a second package of at least one second continuous glass multifilament strand having a second filament thickness t2 larger than the first filament thickness t1 and b) applying a sheath of a thermoplastic polymer composition around the at least one first continuous glass multifilament strand and the at least one second continuous glass multifilament strand to form a sheathed continuous multifilament strand.

A method of manufacturing an escalator handrail which has a composite material including a metallic steel wire and a thermoplastic resin, said metallic steel wire having a center elemental wire and a plurality of strands placed so as to surround the center elemental wire, including: a preheating step of heating the metallic steel wire; a composite-material forming step of integrating the metallic steel wire heated in the preheating step with the thermoplastic resin in a molten state to thereby form the composite material; and a cooling step of cooling the composite material formed in the composite-material forming step.

A method of manufacturing an escalator handrail which has a composite material including a metallic steel wire and a thermoplastic resin, said metallic steel wire having a center elemental wire and a plurality of strands placed so as to surround the center elemental wire, including: a preheating step of heating the metallic steel wire; a composite-material forming step of integrating the metallic steel wire heated in the preheating step with the thermoplastic resin in a molten state to thereby form the composite material; and a cooling step of cooling the composite material formed in the composite-material forming step.

A die for a polymer mixing machine includes first and second opposing surfaces. Each defines first cylindrical portions and second V-shaped portions interspaced between each first portion. The first and second opposing surfaces produce a ply with first portions thicker than second portions and throated portions therebetween.

An optical fiber cable manufacturing method using a manufacturing apparatus including an SZ twisting device, an extrusion molding device, and a pressing portion disposed between the SZ twisting device and the extrusion molding device is provided. The method including: twisting optical fibers or optical fiber units in an SZ manner using the SZ twisting device to form an optical fiber bundle; and covering the optical fiber bundle with a sheath using the extrusion molding device while pressing the optical fiber bundle using the pressing portion.