An extruder hood configured to operate in a steady-state configuration and a non-steady-state configuration. The extruder hood comprises an air inlet, an extruder hood outlet, and an extruder discharge zone within an interior space of the extruder hood, with the extruder discharge zone configured to receive extruded material. In the steady-state configuration, the extruder hood is configured to direct air received from the air inlet across the extruder discharge zone to cause extruded material to be ejected from the extruder hood via the extruder hood outlet. In the non-steady-state configuration, the extruder hood is configured to direct air received from the air inlet out of the extruder hood via the extruder outlet without being directed across the extruder discharge zone.

A hose that includes an inner layer and an outer layer made of an elastic polymeric material, and a textile reinforcement layer interposed between the inner and the outer layers. The inner layer and the outer layer are reciprocally coupled to form a unitary tubular member, within which the textile reinforcement layer is embedded. The unitary tubular member has an elasticity such to automatically elongate under the working pressure given by the liquid flowing therethrough to increase its original length and to automatically recover once the working pressure stops. The textile reinforcement layer is adapted to move from a rest configuration when the working pressure stops to a working configuration when the unitary tubular member elongates under the working pressure, and vice versa.

Calibration basket having exchangeable air guiding elements composed of porous material. The invention relates to a guiding device and to methods for guiding a plastic film, wherein the plastic film can be guided by means of an air cushion, wherein the guiding device comprises a plurality of blower elements (31) each having the foil owing features: at least one supporting element (35), at least one film-guiding element (34), which is at least partially porous, preferably microporous, and which is connected to the supporting element (35). At least one fastening element is provided, by means of which the supporting element (35) and the film-guiding element (34) can be detachably fastened to each other.

To provide a conveyer device that can prevent a sheet-shaped base material comprising a fluid plasticizer from slipping in the lengthwise direction of a roller and thereby prevent a flaw such as a wrinkle in the sheet-shaped base material comprising a fluid plasticizer, the sheet-shaped base material extending in a longitudinal direction and having a width defined in a direction orthogonal to the longitudinal direction, a conveyer device (1) includes a plurality of rollers (R1 and 102), at least one roller (R1) of the plurality of rollers (R1 and 102) having a length not smaller than the width of the sheet-shaped base material (S1), the plurality of rollers (R1 and 102) having a slipping preventing mechanism configured to prevent the sheet-shaped base material (S1) from slipping on the at least one roller (R1).

Material processing systems are disclosed. Some systems include methods of eliminating or reducing defects in elongate workpieces that can undergo large deformations during processing. Some systems include apparatus configured to facilitate such large deformations while maintaining internal stresses (e.g., tensile stresses) below a threshold stress. Some disclosed systems pertain to powder extrusion techniques. Continuous and batch processing systems are disclosed.

A device for cutting a preferably thick-walled, extruded pipe to length, has at least one cutting tool and a receiving unit for the cutting tool. The cutting tool is radially movable in relation to the extrusion axis, is rotatable via a further component about the pipe to be cut to length, in order to cut the pipe to length, and is in operative connection with a ring element, which ring element can be moved via an axial drive, and the depth of penetration of the cutting tool and the path of movement can be defined using an adjustment unit. The depth of penetration of the cutting tool and the path of movement can be defined via the axial drive, wherein toothed rails can be moved more or less in order to achieve the desired depth of penetration.

Device and process for picking up a formable and/or collapsible part (30) that employs the forces of a vacuum (44) and generally distributes the vacuum force uniformly over a large portion of the surface of the part (30). The device preferably provides support for the part (30) at regular intervals, for example using a distributor plate (14) having many small openings (26). The device preferably employs a porous layer (12) such as an open cell foam between the distributor plate (14) and the part (30). The porous layer (12) may perform for one or any combination of the following: further distribute the vacuum forces, cushion the part (30) against the distributor plate (14), or further distribute the support for the part (30).

A method of making and using a stretchable film includes an extruding operation where molten plastics materials are extruded into a tube and a blowing operation in which the tube is blown to expand a diameter of the tube and form a blown-film tube. The blown-film tube is slit to form a film sheet that may be deformed elastically in a machine direction.

A calibration device for calibrating a film hose produced via a blow-extrusion film device, by which the film hose can be brought into a desired diameter, has at least one film guiding element, by which the film hose can be guided. The film guiding element includes at least one elastically deformable element.

A method and apparatus for manufacturing a duct bank comprising the steps of loading a frame with a series of templates, positioning the frame adjacent a pipe extruder, aligning a set of a plurality of holes with a die of the pipe extruder, extruding a pipe of a first length into the set of holes, repeating the steps of aligning and extruding for each set of holes, thereby forming the duct bank, banding the duct bank, and removing the duct bank from the frame.