The invention relates to a method for mechanically treating clay (4), in particular for producing models, the clay (4) being heated by an extruder, extruded and applied to a surface (8), and to a corresponding device for mechanically treating clay (4), in particular for producing models. The invention is characterised in the device comprises an extruder (6) which is designed to heat and extrude clay (4) for applying to a surface (8).

A preform manufacturing device for manufacturing a preform from thermoplastic resin flakes, comprises a decontamination apparatus removing contaminants in the thermoplastic resin flakes, and an injection molding apparatus injecting and molding the thermoplastic resin supplied from the decontamination apparatus.

Methods and systems for controlling the moisture content of biodegradable and bioresorbable polymer resin during extrusion above a lower limit that allows for plasticization of the polymer resin melt and below an upper limit to reduce or prevent molecular weight loss are disclosed. Methods are further disclosed involving plasticization of a polymer resin for feeding into an extruder with carbon dioxide and freon.

A carbon fiber bundle forming method, wherein the at least one carbon fiber bundle can be evenly heated since it is heated with microwave in the first and second microwave steps. Besides, the at least one carbon fiber bundle is treated in the laser step, laser can reach into the interior of the at least one carbon fiber bundle to enable the carbonization and graphitization to take place more evenly, then the carbon fiber bundle is treated in the subsequent roughening treatment step, the resin forming step and the semi-cure forming step, so that the interior of the at least one carbon fiber bundle can be heated evenly, which allows the at least one carbon fiber bundle to be carbonized evenly.

A method of forming a fiber-reinforced molding compound. The method includes pre-impregnating carbon reinforcing fibers with a polymeric material to form one or more pre-impregnated continuous strands having at least 30% of the fibers protected by the polymeric material. The method further includes storing the one or more pre-impregnated continuous strands in bulk. The method also includes introducing the one or more pre-impregnated continuous strands into an extruder, forming a molding compound from the one or more pre-impregnated continuous strands, dispensing the molding compound from the extruder, and using the molding compound to produce a part.

A method of forming a fiber-reinforced molding compound. The method includes pre-impregnating reinforcing fibers with a polymeric material to form one or more pre-impregnated continuous tapes. The method further includes storing the one or more pre-impregnated continuous tapes in bulk, and introducing the one or more pre-impregnated continuous tapes into an extruder. The method further includes forming a molding compound from the one or more pre-impregnated continuous tapes, dispensing the molding compound from the extruder, and using the molding compound to produce a part.

The invention relates to a device (1a . . . 1g) for processing thermoplastic material, comprising a storage container (2)/a conveying line (11) for plastic particles and a conveying screw (3) connected thereto. The device (1a . . . 1g) further comprises an extruder (4) which connects to the conveying screw (3), and a tempering device (7) arranged in the course of the conveying screw (3). In addition, a temperature sensor (8, 8a, 8b) is arranged in the course of the conveying screw (3)/the extruder (4), and/or means (10) are provided for detecting a load of a drive (6) of the extruder (4). Finally, the device (1a . . . 1g) comprises means for influencing the tempering device (7) and an open loop control/closed loop control (9) which is connected to the at least one temperature sensor (8, 8a, 8b) and/or the influencing means of the tempering device (7). Furthermore, an operating method for the device (1a . . . 1g) is specified, in which the plastic particles are temperature-controlled by a tempering device (7) in the course of the conveying screw (3).

The present invention is directed to polymers and copolymers, and systems and methods for processing the same. Advantageously, the polymers and copolymers of the present invention have undergone processing in a falling strand devolatilizer and rotary disk finisher such that a low-cost, low-energy, and high-production-rate product is produced.

A recycled fiberglass reinforced polymer composite article and a method of the same are disclosed in the present disclosure. The reinforced composite article is composed of a recycled fiberglass collected from waste streams and functioning as a filler, the recycled fiberglass being 30-70% of a total weight of the reinforced composite article; a colorant of 1-2% of the total weight of the reinforced composite article; and a recycled resin substantially wetting-out the recycled glass fiber by the black colorant and a chemical binder.

A method and assembly for providing multi-stage extrusion of an article exhibiting an open interior. A multi-stage extrusion operation includes a first stage extrusion for receiving an initially extruded or otherwise pre-existing inner sleeve and extruding a surrounding sleeve and a plurality of radially projecting portions. A second stage subsequently extrudes an outer circular sleeve about the radially projecting portions. A third stage extrudes at least one wing portion to an outer edge of the outer circular sleeve.