Provided is a fuel tank which allows effective suppression of the deformation of a fuel tank body and has excellent durability. This fuel tank is equipped with: a fuel tank body; connecting members which partially connect the opposed inner wall surfaces of the fuel tank body to each other, and/or abutment portions where the opposed inner wall surfaces of the fuel tank body partially abut on each other; and reinforcing members which are provided integrally with the outer wall surfaces of the fuel tank body and reinforce the outer wall surfaces. The fuel tank is configured such that the reinforcing members are equipped with: base portions which are disposed at positions corresponding to the connecting members and/or the abutment portions; and extension portions which extend along the outer wall surfaces from the base portions.

A device for producing a dyed plastic melt and an undyed plastic melt includes a multi-shaft screw extruder, a first metering installation, a second metering installation, and a control installation for selecting between a first operating mode for producing the dyed plastic melt and a second operating mode for producing the undyed plastic melt. The first metering installation serves for feeding an undyed plastic material through a first infeed opening into a housing of the multi-shaft screw extruder, and the second metering installation serves for feeding at least one color granulate through a second infeed opening into the housing. The plastic material is fed exclusively by way of the first infeed opening such that residual color granulate or dyeing agent contained therein, respectively, which is still located in the second metering installation or in the region of the second infeed opening does not contaminate the undyed plastic melt.

A weighing apparatus for the preparation of a mixture of granular components that comprise batches of material required by a plurality of processing machines in a plant for the manufacture of plastic products is described. The apparatus comprises a Multi-Channel Gravimetric Batch Blender (MCGBB) configured to weigh predetermined weights of the raw materials and to combine the weighed portions of raw materials into batches according to a predetermined recipe for each processing machine and a computer that controls the operation of all components of the MCGBB. The MCGBB comprises several weighing units arranged in a way that allows material weighed in each of the weighing units to fall through individual chutes via a common funnel into a manifold that distributes the weighed batches to several processing machines via a system of delivery pipes.

The present invention relates to a process for the production of panels for floor or wall coverings comprising the steps of mixing and homogenizing raw materials, thereby obtaining a dryblend, extruding said dryblend, thereby obtaining one or more thermoplastic layers, laminating the aforementioned thermoplastic layers, thereby obtaining a panel for floor or wall coverings, wherein said raw materials and/or said dryblend are predominantly transported vertically downwards during the weighing, mixing and/or homogenizing of said raw materials and during the feeding of said dryblend to extruders via feeding units.

The invention relates to a method for producing a plastic film from a total quantity of raw materials in a film extrusion machine. Said method according to the invention comprises the following steps: providing a selection of raw materials from a total quantity of raw materials, setting machine and production parameters of the film extrusion machine, supplying the selection of raw materials to the film extrusion machine in a composition, detecting at least one actual value of a property of the plastic film, forming a difference between the actual value and a target value of the property, changing the selection of raw materials and/or the composition of the raw materials, if the difference exceeds a threshold.

A system and method for enclosing the blowing area of a biopolymer blown film production process. The enclosure surrounds the blown film tower and includes at least a climate controller to maintain an optimal temperature for the blown film process.

A system and process for producing a homogenous extrudate powder coating composition having predetermined properties, the system comprising a color library database that is configured to store one or more input formulation data objects capable of use in controlling the inputs and operation of an electronically controlled homogenous extrudate mixer.

A process and system for rapidly fabricating small batches of powder coating compositions having desired colors from one or more solid input filaments. An additive manufacturing filament fabricator feeds one or more single-color solid polymer input filaments into a heated mixer in accordance with an input formulation to be liquefied and mixed to produce a homogenous extrudate mixture. The extrudate mixture is solidified on an extrudate receiving platform and is then comminuted by an extrudate mill into a finished powder coating composition having a desired color.

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).

A method for measuring a tubular strand exiting from an extrusion device comprises directing electromagnetic radiation from an inside of the tubular strand to an inner side of a tubular strand. The electromagnet radiation is radiated from at least one radiation source within a frequency range from 1 GHz to 6000 GHz. The electromagnetic radiation is reflected off of the tubular strand and received by at least one radiation receiver. A value for at least one of a diameter, a wall thickness, and a deviation in shape of the tubular strand is determined from the electromagnetic radiation received by at least one radiation receiver.