A cooling apparatus includes a conveying means which conveys a resin composition formed into a sheet shape along a direction parallel to a surface of the sheet-shaped resin composition and a cooling means which cools the resin composition being conveyed by the conveying means. A temperature of the resin composition just before being cooled by the cooling means is in the range of 40 to 60° C. and the cooling means has a cooling ability to cool the resin composition such that a cooling rate of the resin composition is in the range of 0.2 to 5° C./min. Further, the cooling means includes a fan section having at least one outlet port which discharges cooling air of which temperature is in the range of −40 to 0° C. to the resin composition.

A method is provided for manufacturing a composite body. A first longitudinal portion of a continuous length of prepreg material is shaped using a first die of a compression molding tool to provide a shaped first longitudinal portion of the continuous length of prepreg material. The shaped first longitudinal portion is consolidated using the compression molding tool to provide a first portion of the composite body. The first portion of the composite body is moved out of the compression molding tool. The first die is swapped for a replacement first die. A second longitudinal portion of the continuous length of prepreg material is shaped using the replacement first die of the compression molding tool to provide a shaped second longitudinal portion of the continuous length of prepreg material. The shaped second longitudinal portion is consolidated using the compression molding tool to provide a second portion of the composite body.

A method is provided for manufacturing a composite body. A first longitudinal portion of a continuous length of prepreg material is shaped using a first die of a compression molding tool to provide a shaped first longitudinal portion of the continuous length of prepreg material. The shaped first longitudinal portion is consolidated using the compression molding tool to provide a first portion of the composite body. The first portion of the composite body is moved out of the compression molding tool. The first die is swapped for a replacement first die. A second longitudinal portion of the continuous length of prepreg material is shaped using the replacement first die of the compression molding tool to provide a shaped second longitudinal portion of the continuous length of prepreg material. The shaped second longitudinal portion is consolidated using the compression molding tool to provide a second portion of the composite body.

The extrusion apparatus includes a screw in a fixed barrel. The barrel has a feed inlet and an outlet with an extrusion nozzle which discharges into the nip between first and second rotary rolls that can rotate in opposite directions. The apparatus also has a first means for rotating and a first control means that are able to synchronize the speed of rotation of the first roll and the screw and has a second means that is able to rotate the second screw at a different speed of rotation than the first roll. The first control means can regulate the speed of rotation of the screw depending on the width of the strip, and a second control means can regulate the speed of rotation of the second roll depending on the thickness of the strip.

The invention relates to a calender stack for an extruded material web (51) made from thermoplastic, in particular a film web, having (a) a stand (1) which has (i) a first guide rail set (2) which comprises two arcuate first guide rails (2, 2) and (ii) a second guide rail set (3) which comprises two arcuate second guide rails (3, 3), (b) a first calender roll (8) which can be rotated about a first calender roll rotational axis D8) and is mounted on the stand (1), (c) a second calender roll (9) which forms a calender with the first calender roll (8) and is fastened to the stand (1), (d) an adjusting roll (14) which can be rotated about an adjusting roll rotational axis (D14) and is mounted on the stand (1), and (e) a supporting device (34), on which the stand (1) is mounted rotatably in such a way that the first calender roll rotational axis (D8) remains stationary during a rotation of the stand (1). According to the invention, the stand (1) is configured in such a way that the adjusting roll (14) can be positioned at an angle of inclination () of at least 55, wherein the angle of inclination () is formed firstly between a horizontal which runs perpendicularly with respect to the first calender roll rotational axis (D8) and through the first calender roll rotational axis (D8), and secondly a straight line which runs perpendicularly with respect to the first calender roll rotational axis (D8) through the first calender roll rotational axis (D8) and through the adjusting roll rotational axis (D14).

A multi-stage roll type sheet molding apparatus includes four or more molding rolls including a touch molding roll, a main molding roll and finish molding rolls disposed in the horizontal direction in parallel to each other, in which a molten sheet is supplied downward from above to a first nip part interposed between the touch molding roll and main molding roll, the sheet is compressed by the molding rolls, and the compressed sheet is windingly fed sequentially from the main molding roll to the finish molding rolls, thereby molding a sheet having a specific thickness. The apparatus further includes a rear-stage side rail for guiding the finish molding rolls in a horizontally movable manner and second to fourth hydraulic cylinders for horizontally moving the finish molding rolls to in such a manner that they can pressurize the sheet.

A method and a device is disclosed for jet-packing moulding a polymer pipeline. During a spiral winding stack moulding process, a pipeline is continuously moulded by embedding the melt in a moulded pipe blank under the conjunction of the jetting welding effect produced by the melt and the shaping effect of partial calendering. The device includes an extruder, a melt jetting mechanism, a partial calendering mechanism and a pipe diameter shaping and adjusting mechanism. The melt jetting mechanism is arranged at the extrusion end of the extruder and embedded in a moulded pipe blank. The partial calendering mechanism and the pipe diameter shaping and adjusting mechanism are distributed on the wall of the pipe blank in the circumferential direction. The partial calendering mechanism is arranged at the corresponding position of the melt jetting mechanism.

A method for nipping and cooling plastic sheet material and a multi-nip takeoff and cooling section having a first smoothing and a second smoothing roll. A position, calibration and cooling roll is positioned proximate to the second smoothing roll. The position, calibration and cooling roll is movable relative to the second smoothing roll. A first fixed calibration and cooling roll is positioned proximate the position, calibration and cooling roll. The first fixed calibration and cooling roll is in a fixed position relative to the second smoothing roll. A first movable calibration and cooling roll is positioned proximate the first fixed calibration and cooling roll The first movable calibration and cooling roll is movable relative to the first fixed calibration and cooling roll. Actuators cooperate with the position, calibration and cooling roll and the first movable cooling roll to provide both nip pressure and gap control.

A multi-stage roll type sheet molding apparatus includes four or more molding rolls including a touch molding roll, a main molding roll and finish molding rolls disposed in the horizontal direction in parallel to each other, in which a molten sheet is supplied downward from above to a first nip part interposed between the touch molding roll and main molding roll, the sheet is compressed by the molding rolls, and the compressed sheet is windingly fed sequentially from the main molding roll to the finish molding rolls, thereby molding a sheet having a specific thickness. The apparatus further includes a rear-stage side rail for guiding the finish molding rolls in a horizontally movable manner and second to fourth hydraulic cylinders for horizontally moving the finish molding rolls to in such a manner that they can pressurize the sheet.