Siempelkamp Maschinen- Und Anlagenbau Gmbh

G. Siempelkamp Gmbh & Co.

Siempelkamp Maschinen -und Anlagen Bau Gmbh + Co. Kg

Siempelkamp Maschinen-und Anlagenbaw Gmbh & Co. Kg

Siempelkan Maschinen- Und Anlagenbau Gmbh

Mobius Technologies, Inc.

Michael Schöler

Lothar Sebastian

Klaus Schürmann

Fabian Köffers

Hans-Dietrich Sitzler

Dieter Aengenvoort

Klaus Gerhardt

Armin Rapp

Horst Weiss

Robert Donald Villwock

Jochem Berns

Rolf Trummel

Hans W Fechner

Otto Voss

Dean Budney

Jens Stellmacher

Heinz Siebold

Werner Froese

Georg Geier

Helmut Roll

Paul R Berthevas

Michael Grossenbacher

Achim NEUMÜLLER

Jörg Heinz Hüneke

Sven Zimmer

Fechner W Hans

Michael Schöler Trummel

A method for pretensioning the membrane of a press, a) providing a press having a first pressing tool, a second pressing tool and a membrane, the first pressing tool and the second pressing tool are movable, the membrane connected to one of the pressing tools, a cavity for a working medium is formed between the membrane and the pressing tool, the cavity is sealed by at least one seal which presses onto the membrane with a sealing force; b) providing at least one workpiece including a matrix and fibres embedded therein; c) inserting the workpiece into the press; d) closing the press; e) subjecting the workpiece to pressure and/or to heat by means of the membrane, a cured shaped part is formed from the workpiece; and f) opening the press and removing the shaped part, which ensures a surface of the membrane is smooth.

Method of prestressing the membrane of a membrane press and press for carrying out this method

The invention relates to a method for producing molded parts from fiber composite material, including the following steps: a) providing a press having a first press tool, a second press tool and a membrane. The first press tool and the second press tool are movable relative to each other. The membrane is connected to one of the press tools, a cavity for a working medium being formed between the membrane and the press tool connected thereto, a working chamber for a workpiece being formed in the other press tool, and the volume of the working chamber being modifiable by a movement of the membrane when the press is closed, b) providing at least one workpiece having a workpiece volume. The workpiece has a matrix and fibers inserted therein, c) inserting the workpiece into the working chamber of the press, d) closing the press. The working chamber takes up a first volume, e) applying pressure and/or temperature to the workpiece by means of the membrane. The working chamber takes up a second volume, a hardened molded part being created from the workpiece, and f) opening the press and removing the molded part. In order to ensure continuous and uniform pressure distribution, according to the invention the first volume of the working chamber is smaller than the workpiece volume, and therefore the workpiece is already compressed at step d) and before step e).

Method for manufacturing moulded parts from fibre composite material

A method for producing a component from a fiber-composite material includes introducing a fiber impregnated with a matrix onto the inner mold of a mold space formed between the inner mold and an outer mold, introducing a separating membrane onto the fiber impregnated with the matrix such that a cavity extending along the lateral surface of the outer mold is formed between the outer mold and the separating membrane, supplying a thermal oil to the cavity at a pressure that is greater than ambient pressure such that the thermal oil acts on the separating membrane at the pressure, heating the thermal oil to above a glass transition temperature of the matrix, and cooling the thermal to below the glass transition temperature of the matrix, wherein the pressure of the thermal oil on the separating membrane is kept substantially constant at least during the cooling to below the glass transition temperature.

Method for producing a component from a fiber-composite material

A method is specified for producing a structural component, in particular for an aircraft, ground vehicle, or watercraft, or for a rotor blade of a wind turbine, in which method an arrangement of fibers and plastic material is laid in a mold and subjected to an increased pressure and an increased temperature, wherein a mold is used which comprises at least one recess in which a reinforcing element is arranged. The object is to be able to cost-effectively produce a structural component of this type. For this purpose, it is provided that the reinforcing element is laid in the recess together with a core, wherein a differential volume between the recess and core, at least in a predetermined region, is chosen such that it is smaller than a segment of the reinforcing element arranged in said region by a predetermined amount.

Method for producing a structural component

A method and a device for producing a component from a fiber composite material. The method includes introducing multiple layers of fibers impregnated with a matrix onto an inner mold, placing a membrane sealed against an outer mold onto the fibers impregnated with the matrix, such that a cavity extending along the shell surface of the outer mold forms between the outer mold and the membrane, and applying a temperature-controllable pressure fluid to the cavity at a temperature greater than the melting point of the matrix and at a pressure greater than the ambient pressure. To produce a component having at least one reinforcing layer, at least one reinforcing layer having fibers oriented in a predominantly parallel manner is placed locally onto a portion of a side of a the base layer facing the outer mold with the aid of an insertion device and a membrane with an average surface roughness of below 1.0 μm, preferably below 0.1 μm, subsequently exerts a set pressure in the cavity on the component.

Method and device for producing a component from a fiber composite material

The invention relates to an installation for applying glue to fibers for the production of fiberboard, especially MDF board or similar wood material board. Said installation comprises a fiber feed unit having at least one fiber feed conduit which opens into a fiber exit tube via a fiber deflection element and receives the air that is used to transport the fibers, a chute which is located downstream of the fiber exit tube, a glue application device which has spray nozzles for spraying the fibers that emerge from the fiber exit tube and enter the chute with drops of glue, and a collection device, located downstream of the chute and having an air-permeable transport belt for collecting and optionally carrying off the fibers and a suction device located below the transport belt for suctioning air from the chute through the transport belt, the suction device having one or more suction boxes to which one or more suction pipes are connected. The installation is characterized in that the suction boxes are configured as cleaning boxes having at least one cleaning device for removing fibers that enter the suction boxes through the transport belt.

Installation for applying glue to fibers for the production of fiberboard

The invention relates to an installation for applying glue to fibers for the production of fiberboard, especially MDF board or similar wood material board. Said installation comprises a fiber feed unit having at least one fiber feed conduit which opens into a fiber exit tube via an arched fiber deflection element and receives the air that is used to transport the fibers, a chute which is located downstream of the fiber exit tube, a glue application device which is located e.g. between the fiber exit tube and the chute and which has spray nozzles for spraying the fibers that emerge from the fiber exit tube and enter the chute with drops of glue, and a collection device, located downstream of the chute and having a transport device for collecting and optionally carrying off the fibers. The installation is characterized in that at least a part of the fiber deflection conduit is configured as a subdivided conduit having a plurality of partial conduits, said conduit being subdivided by one or more dividing walls that extend in the axial direction.

The invention relates to an installation for applying glue to fibers for the production of fiberboard, especially MDF board or similar wood material board. Said installation comprises a fiber feed unit having at least one fiber feed conduit which opens into a fiber exit tube via e.g. an arched fiber deflection element and receives the air that is used to transport the fibers, a chute which is located downstream of the fiber exit tube, a glue application device which is located between the fiber exit tube and the chute and which has spray nozzles for spraying the fibers that emerge from the fiber exit tube and enter the chute with drops of glue, and a collection device, located downstream of the chute and having a transport device for collecting and optionally carrying off the fibers and a suction device for suctioning air from the chute through the transport belt. The installation is characterized in that the spray nozzles or at least some of the spray nozzles can be transferred from a standby position to a working position and vice versa for applying glue to the fibers.

Apparatus for applying glue to fibers for making fiberboard

An apparatus for comminuting a stack of wood boards to produce wood strands. A stack feeder feeds the stack of wood boards to a chipper chamber on a longitudinally displaceable carriage moving transverse to the direction of feed of the stack and having a blade ring for comminuting the end of the stack. The chamber is reduced in full volume with replaceable and removable filler bodies.

Apparatus for comminuting wood board stacks to strands

An apparatus for continuously produced pressed board has a structuring belt in the form of a metal wire screen which is fed with a respectively endless steel belt and the wood-based mat passing through a continuous press whose heated upper and lower press platens have the belts guided therealong via rollers displaceable along closed paths. The wire mesh configuration of the structuring belt is continuously impressed into the pressed board strand which is produced.

Apparatus for producing wood-based pressed board

In order to preheat a particle mat having upper and lower faces and edges to a predetermined desired temperature for pressing into a pressed board air is conditioned to a temperature below 100.degree. C. and a moisture content together imparting to the conditioned air a dew point generally equal to the desired temperature. This conditioned air is simultaneously introduced from above and below at the same rate into the respective faces of the mat to produce in the mat a pair of horizontal and vertically approaching fronts at which moisture condenses out of the conditioned air. Introduction of the conditioned air into the mat is ended when condensed moisture and the conditioned air are forced out of the edges of the mat.

Preheating particles in manufacture of pressed board

A particle mat for pressing into a pressed board is heated by concurrently passing through the mat treatment air coming from an air-conditioning system and having a predetermined moisture content and dew point, heating the treatment air passing through the mat to a temperature which is greater by a dew-point differential than the dew point of the treatment air, and controlling the volume rate of flow of the treatment air and the moisture content of the treatment air such that the mat is preheated to a predetermined temperature while liquid in the treatment air is allowed to condense in the mat to at most a maximum liquid content.

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Rheurdt, Germany

Michael Schöler