Abstract: The invention relates to a process and an apparatus for producing a molded fiber article. The process comprises the steps of —dissolving fibrous materials in water to form a fibrous material suspension in a pulper, —removing moisture from the fibrous material suspension by pressing to form a molded fiber article in a mold and/or —drying the molded fiber article by supplying heat, —demolding the molded fiber article from the mold. The process is characterized by the feature whereby, in mold drying of the molded fiber article in the mold, a moisture content of the molded fiber article of not more than 10% by weight or not more than 7.5% by weight or not more than 5% by weight is achieved.

Abstract: The present invention relates to a filling injector and to a method for operating such a filling injector. The filling injector has a sensor for detecting a predetermined detection position of a closing piston unit and a counting device for counting the number of detection positions of the closing piston unit in which it is situated in the predetermined detection position. By means of this, when a predetermined number of detection positions is reached, a maintenance signal can be emitted and the maintenance interval can be adapted to the actual use of the filling injector.

Abstract: A tool for the production of particle foam parts through the welding of foam particles by means of electromagnetic waves comprises two mould halves which bound a mould cavity. At least one of the two mould halves is made of a material which is transparent to electromagnetic waves and has a boundary wall which bounds the mould cavity and one or more supports serving to support the boundary wall on a capacitor plate on the side facing away from the mould cavity and forming one or more hollow spaces. A tool system for the production of particle foam parts has the tool and at least one trimming body, which is designed for introduction into the hollow space or at least one of the hollow spaces. A method for the production of a particle foam part with the tool or tool system is also specified.

Abstract: The invention relates to a crack-split moulding tool for producing a foam particle part, having two mould halves (2, 3). The mould halves (2, 3) are pivotably mounted relative to one another such that they can be arranged at a varying distance from each other in certain sections when being filled with foam particles and when pressing together, are moved together at a varying distance until in a closed position, due to a pivoting movement. As a result, it is possible to homogeneously compress areas of the moulding cavity (6) having a different thickness and to compress in a different manner, area having the same thickness.

Abstract: The invention relates to an apparatus and a method for the production of a particle foam part, wherein a mould cavity (5) is filled with foam particles, the foam particles are welded into a particle foam part and the particle foam part is cooled down in the mould. The foam particles are heated by means of a ceramic body (17) with integrated resistance heating and by the application of electromagnetic waves.

Abstract: The invention relates to an apparatus for the casting of cast parts according to the permanent mold casting method comprising: a pivotable retaining element (9) for holding a permanent mold (13, 16) a furnace (11) which may be connected to a low-pressure permanent mold (13) in such a way that melt may be fed to the low-pressure permanent mold (13) in accordance with the low-pressure process, and a melt feed device (17) by which melt may be fed to a gravity permanent mold (16), wherein the gravity permanent mold (16) may be mounted on the retaining element (9).

Abstract: The invention relates to a method and a device for producing a particle foam part. The device comprises a molding tool (3) which delimits a molding chamber (14), wherein at least two capacitor plates (15, 16) are arranged adjacently to the molding chamber, said plates be connected to an RF radiation source. The RF radiation source is designed to dispense RF radiation, and the molding tool (3) has means for controlling the temperature of the molding tool in the region of an inner delimiting surface (19) delimiting the molding chamber (14) and/or for supplying a heating medium to the molding tool region lying against the inner delimiting surface.

Abstract: The invention relates to a press for a casting machine and a casting machine with such a press. The press has a baseplate, an upper frame and a movable clamping platen, with two front columns and two rear columns arranged at the corner zones of the plates and at the corner zones of the upper frame. These columns extend through suitable through openings in the movable clamping platen and are fixed to the baseplate at the stationary upper frame. The press is characterized in that the front columns have a greater distance from one another than the rear columns. Because of this, essentially wider or longer permanent molds or those with side-protruding slides, up to a width corresponding to the increased distance apart of the front columns, may be inserted into the area between the baseplates and the movable clamping platen, and removed again.

Abstract: This invention concerns a process for producing particle foam part in which foam particles are heated in a molding tool so that they weld to the particle foam part. Heat is supplied to the foam particles by means of electromagnetic RF radiation. The foam particles are made of polyurethane (PU), polylactate (PLA), polyethylene block amide (PEBA) or polyethylene terephthalate (PET).

Abstract: The present invention relates to a method of controlling a step of a process carried out by a machine. The invention is characterized in that a sensor is used to measure a variable characteristic with an exponential course for a step, and with the aid of several consecutive measurements of the characteristic variable a time constant of the exponential change is determined, and the step is ended after it has been carried out for a period of time corresponding to a predetermined multiple of the time constant.

Abstract: The invention relates to a method and an apparatus for the production of a foam particle part. The method comprises the following steps: feeding of foam particles from a material container to a mould by means of a pipe thermoplastic welding of the foam particles in the mould to make a foam particle part with the input of heat, wherein steam is added to the foam particles to be fed.

Abstract: An apparatus for low-pressure casting includes a furnace wall bounding a furnace chamber, a melting crucible unit located in the furnace chamber, a heating device for heating the melting crucible unit, and at least one pressurizing unit for applying overpressure to the melting crucible unit. The furnace chamber in a top view has a length which is greater than its width, so that the furnace chamber has an elongated shape in a longitudinal direction, wherein preferably several riser pipes extending vertically are distributed roughly evenly over around 60% to 95% of the length in the longitudinal direction of the melting crucible or crucibles.

Abstract: The present invention relates to an apparatus and a method for the production of a particle foam part. The apparatus has a mold 2 with a mold cavity 3, a steam generator 12 to generate steam for feeding into the mold cavity for the thermoplastic welding into a particle foam part of foam particles present in the mold cavity 3, a feed pipe 10, 11 for the feeding of steam to the mold, wherein a controllable steam valve 13, 14 is provided in the feed pipe, and a pressure sensor 15, 16 is located in the area between the steam valve and the mold, in order to measure the pressure of the supplied steam. A control device 23 controls pressure over time according to to a predetermined profile, wherein the profile has a ramp, in order to increase pressure gradually within a predetermined period of time from an initial value to an end value.

Abstract: The invention relates to an injector for filling a mold with plastic particles, with a front part (2) and a base part (3), wherein the front part (2) has a mold-side orifice (23) and a feed for compressed air (15) and a feed for plastic particles (11), and the base part (3) is attached axially in the direction of conveyance behind the front part (2) and has a piston-cylinder unit (30, 37, 38), wherein a closing piston (49) for closing the mold-side orifice (23) is axially movable through the front part (2), together with an apparatus and a method for the production of a particle form part.

Abstract: The present invention relates to a filling injector and to a method for operating such a filling injector. The filling injector has a sensor for detecting a predetermined detection position of a closing piston unit and a counting device for counting the number of detection positions of the closing piston unit in which it is situated in the predetermined detection position. By means of this, when a predetermined number of detection positions is reached, a maintenance signal can be emitted and the maintenance interval can be adapted to the actual use of the filling injector.

Abstract: The invention relates to a device (01) having at least two tool parts (03, 53, 63) that are separable at a parting face, wherein the closed tool parts (03, 53, 63) form a mold cavity (02, 52), within which (02, 52) particulate plastic material can be foamed and/or expanded to produce foamed molded parts. According to the invention, in particular to reduce the energy consumption, the tool wall forming the mold cavity (02, 52) is formed at least in sections by a multilayer structure (06, 56, 65) having a thin inner layer that is mechanically supported by a support element.

Abstract: The invention relates to a device (01) having at least two tool parts (03, 53, 63) that are separable at a parting face, wherein the closed tool parts (03, 53, 63) form a mold cavity (02, 52), within which (02, 52) particulate plastic material can be foamed and/or expanded to produce foamed molded parts. According to the invention, in particular to reduce the energy consumption, the tool wall forming the mold cavity (02, 52) is formed at least in sections by a multilayer structure (06, 56, 65) having a thin inner layer that is mechanically supported by a support element.

Abstract: The invention relates to a method for the manufacture of light open porous components of metal, metal alloys, plastic or ceramic of any geometry. Here, the component is produced through casting liquid material into a casting device (01), wherein a core stack (04) is mounted, cast and removed in a casting mold (03). The core stack (04) here is designed as a regular multi-dimensional core lattice (09) with defined core lattice planes (12), where each core lattice plane (12) is constructed of individual regular core bodies (10).

Abstract: A method is described, according to which open-pored components may be produced having a defined pore size, a defined external skin thickness, and a low density. A fine carrier material, is shaped with the aid of a binder into balls (1) which are as uniform as possible according to a shaping method, the prefinished balls (1) are wetted or coated using the same or also a different binding medium and poured in this way into the desired external mold and caused to stick and/or form binder bridges (2) at the contact points by a curing method. The balls (1) connected to one another are removed from their mold and placed into the desired mold, after which the cavities (3) between the balls (1) are filled with metal, plastic, or ceramic. After solidification, all of the ball material may be removed and/or washed out by vibration and/or by washing using water.