A modular plastic pipe formation apparatus, wherein at least two components of the pipe formation apparatus are disposed with respect to at least one or more respective modules.

A method for the production control of an extruded plastic product with the following steps: recording at a first measuring point a first actual temperature of a measuring area provided on the plastic product, recording a second actual temperature of the measuring area at a second measuring point which is arranged at a distance from the first measuring point in a direction of extrusion of the plastic product, determining a setpoint temperature of the measuring area at the second measuring point, and outputting information on whether the second actual temperature is inside or outside a prescribed tolerance range of the setpoint temperature.

The invention relates to a device for producing plastic pipe from a molten plastic tube. The device comprises a injection head for connection to an extruder for the extrusion of the molten plastic tube and several molding jaws in each case having a molding surface for the molding of the extruded molten plastic tube, which, for molding the extruded molten plastic tube, are arranged, in each case in pairs, guided by means of a drive device along a molding path in the production direction of the extruded molten plastic tube. The molding surface in each case partially encircles a receiving space for receiving the molten plastic tube. According to the invention, at least one of the molding jaws has a sensor device which comprises at least one sensor with a data-capturing sensor head, which is arranged such that its capture area comprises an area of the molding surface and/or an area of the receiving space.

A process produces an electrical line which extends in the longitudinal direction and the line has a line core and an outer shell. In a continuous shaping process, individual shell portions of the outer shell are formed successively by surrounding the line core with a curable plastic substance. In at least one portion, the outer shell is produced having a cross-sectional geometry which can be varied in the longitudinal direction of the line.

In the manufacture of double-walled corrugated extruded pipe it is desirable to form an integral connecting cuff that is of a single wall thickness and typically of a large diameter. The mold blocks and process parameters for forming of the cuff as part of an otherwise double-walled pipe requires a transition as the cuff moves past the die outlets. The present invention allows for accurate sensing and control of air pressure and temperature as the cuff moves past the die outlets. Improvements in both the die tooling and the method of manufacture are disclosed.

A two stage mold block transfer station is used the exit of a moving mold tunnel to quickly move mold blocks to a clear position relative to the molded product. Once in the clear position the mold block is rotated and provided to a return drive moving the mold block back to the inlet of the moving mold tunnel. By moving the last mold block of the moving mold tunnel primarily away from the longitudinal axis of the mold tunnel less mold blocks are required. Various arrangements for moving of the mold blocks can be used achieve this advantage.

A webless corrugated dual wall foundation drain which is constructed as a hollow rectangular tubular member with an inner corrugated wall formed of HDPE and an integral outer smooth wall formed of the same material. The outer smooth wall of the foundation drain is attached to and integrally formed with the corrugations of the inner corrugated wall through a coextrusion process, thereby significantly enhancing the vertical beam stiffness of the foundation drain and eliminating the need for an internal supporting web.

The invention relates to a tube manufacturing method comprising steps of: enclosing a parison (14) in a mold (6) to form a blank (15) having a first end portion shaped to form a first tube head, a tubular central portion, and a second end portion shaped to form a second tube head, and cutting the tubular central portion (22) into a first skirt and a second skirt to obtain two separate tubes, namely a first tube including the first tube head and the first skirt, and a second tube including the second tube head and the second skirt.

A device produces at least one container product made of plastics material, which is molded by a molding device (1). The container product is filled with a predefinable container content by a filling device and closed by a closing device. The finished container product is fed to a post-treatment zone in which the container product and/or the respective container content is subjected to a temperature-influencing effect.

A method of sub-ambient pressure processing of blow-molded polymer foams and skin-over-foam sandwich panel configurations for lightweight components having improved structural properties. The method can create either skinned or un-skinned foams that offer smooth interior and exterior surfaces, zero or controlled surface porosity, skins of pre-defined thickness, and foam cells that are expanded and oriented normal to the material plane, effectively spherical or polyhedral in nature, and offering improved bending and compressive strength.