Polyethylene resin foamed particles are obtained by foaming polyethylene resin particles containing a base resin. The base resin is a linear polyethylene resin. The polyethylene resin particles have a storage elastic modulus of 900 Pa or more and 5000 Pa or less at an angular frequency of 1 rad/second and a storage elastic modulus of 100000 Pa or less at an angular frequency of 100 rad/second, in a dynamic viscoelasticity measurement at 190 C. A differential scanning calorimetry (DSC) curve obtained by heating the polyethylene resin foamed particles using a differential scanning calorimeter at a temperature rising speed of 10 C./minute within a range of 20 C. to 220 C. has two melting peaks of a melting peak on a low temperature side and a melting peak on a high temperature side.

An injection molding machine for manufacturing the spiral bicolor LED hose light just needs a single process and equipment to greatly increase the production efficiency and save the equipment investment costs. The input channel terminal of the second flow channel connected with a first horizontal channel is gradually smaller, and the transportation end terminal of the first horizontal channel connected with a second horizontal channel of larger diameter is gradually larger. The transportation end terminal of the second extruder is connected with the input terminal of the third flow channels. The light strip input channel inputs the LED light strip to pass through the first and second flow channel, which the transparent molten plastic squeezed by the first extruder wraps and covers the LED light strip and the molten plastic with the other color squeezed by the second extruder is spirally wounded on the surface of the transparent molten plastic.

To reduce a time required for repairing a honeycomb core sandwich panel. A repair method according to the present invention is a repair method, in which a repair patch 20 is disposed on a repair target portion that exists on the side of a repair surface 1A of a honeycomb core sandwich panel 1, the honeycomb core sandwich panel 1 being formed by sandwiching a honeycomb structured core 10 with a plurality of cells between skins 11 and 12, the method including: a heating step of heating the repair patch 20; and a cooling step of cooling the honeycomb core sandwich panel 1 from the side of a second surface 1B opposing the repair surface 1A of the honeycomb core sandwich panel 1.

A device to cure/consolidate a textile preform pre-impregnated with polymer. A matrix, without any heating or cooling means, includes a molding face that reproduces the shape of the textile preform and an assembly interface. A sealed bagging of the preform on the matrix. A vacuum pump to apply vacuum inside the sealed bag having the textile preform. A thermal unit includes an induction heater and a receiving interface that cooperates with the matrix assembly interface to position the matrix and to transfer heat between the matrix and the thermal unit.

An internal quench system for cooling pipes being coated is provided. The system comprises an internal quench lance having spray nozzles configured at one end of the internal quench lance. There is also provided wheels and retractable supports to support the internal quench lance without hindering the movement of the pipes. Each retract support is provided with a liquid coolant supplying means to provide liquid coolant to the internal quench lance. A process for using the internal quench system for cooling pipes being coated is also provided.

The object of the invention is a print head for three-dimensional printing comprising an extrusion assembly (1) functionally coupled to a drive assembly (3), and a nozzle assembly (2), functionally coupled to the extrusion assembly (1), providing filament (10) transfer, wherein there is a cooling assembly (18) disposed between the extrusion assembly (1) and the drive assembly (2), containing a fluid cooling system, comprising an inlet (15), an outlet (17) and a system of cooling ducts (14) disposed inside the cooling assembly (18), distributing the cooling medium (11), providing maintenance of the preset temperature of the extrusion assembly (1) and the drive assembly (3). The object of the invention is also a print head assembly.

A mold, particularly for injection molding, includes a shell defining a cavity delimiting a molding surface, a heat accumulator and inductor heater, configured to heat the heat accumulator. A receiving surface, which is a part of a surface of the shell other than the molding surface, is either exposed to or shielded from the heat of heat accumulator, to bring the entire molding surface to a predetermined temperature to inject the material into the cavity.

In one example, an apparatus for generating a three-dimensional object includes an energy source to apply energy to a layer of build material to cause a first portion of the layer to coalesce and solidify, an agent distributor to selectively deliver a cooling agent onto a second portion of the layer, and a controller to control the energy source to apply energy to the layer to cause the first portion to coalesce and solidify in a first pattern and to control the agent distributor to selectively deliver the cooling agent onto the second portion of the layer in a second pattern independent of the first pattern.

Aimed at providing a method for molding a thermoplastic resin product and a molding apparatus therefor that enable productivity, transfer quality or the like to be improved. Provided is a method for molding a thermoplastic resin product that includes a heating step, a transfer step, a cooling step and a mold-releasing step, and wherein, in the heating step, a stamper is irradiated with infrared rays in a state where a cooling member is not irradiated with infrared rays, and at least in the final stage of the transfer step, the stamper and the cooling member are brought into contact.

A molding die and a molding method are provided, which allow high-cycle manufacturing of molded bodies of a thermoplastic resin or thermoplastic resin-fiber composite material, thereby improving productivity. Molding is performed using a molding die including a plurality of die portions that form a cavity in which a molded body is molded, the molding die including: a first temperature adjusting unit disposed in the vicinity of the cavity surface and capable of at least cooling the cavity surface; and a second temperature adjusting unit disposed on a side of the first temperature adjusting unit opposite from the cavity surface and capable of at least heating the cavity surface, wherein a distance L0 from the cavity surface to the first temperature adjusting unit and a distance L1 from the cavity surface to a surface of the corresponding die portion opposite from the cavity surface satisfy the relationship: (L1/L0)>3.