Abstract: The application relates to a method for monitoring a hydraulic system including several hydraulic components, the hydraulic system comprising at least one pump and subsystems which can be shut off from one another and each have a hydraulic motor and/or a hydraulic cylinder as consumers. According to the application, leakage in the pump and in the subsystems is determined and, on the basis thereof, leakage in the consumers is subsequently determined. These values can be used to determine the efficiencies of the pump and the consumers.

Abstract: An example of a method for time-resolved calculation of a deformation of a body comprises calculating (110) a model of the body during the deformation. The method further comprises calculating (120) a predicted X-ray image for the body for a plurality of time points during the deformation based on the model. The method further comprises obtaining (130) one measured X-ray image of the body each for the time points during the deformation. The method further comprises modifying (140) the model based on the predicted X-ray images and the measured X-ray images.

Abstract: A method for operating an injection-molding machine, including the steps: a) in a current injection-molding cycle, after an accepted-part reference injection-molding cycle learned in a learning phase: detecting a compound pressure change k1 relative to an accepted-part reference compound pressure pmasse, ref during at least part of an injection phase of the current injection-molding cycle by measuring a current compound pressure pmasse, act and comparing the current compound pressure pmasse,act with the accepted-part reference compound pressure pmasse,ref, b) determining a target mold internal pressure curve pwkz,soll (t) for a holding-pressure phase of the current injection-molding cycle, wherein for this purpose a mold internal pressure curve pwkz,ref (t) of the accepted-part reference injection-molding cycle is adjusted at least in dependence on the compound pressure change k1 detected in step a), and c) traveling the holding-pressure curve pmasse, Hld, act (t) of the current injection-molding cycle in suc

Abstract: The invention relates to a method for producing molded parts, wherein semifinished product is heated in a heating device and is subsequently fed to a shaping machine. The heating device has a closed housing having a door or has a separately closable opening. The heating device optionally has a dividable housing, in the case of which the housing components can be moved away from each other in order to form an opening and can be moved toward each other in order to form a closed housing. One or more radiant heaters, in particular infrared radiant heaters, are provided in the interior of the housing. Semifinished product is introduced into the interior of the housing and radiant heat produced by the radiant heaters is applied thereto, said semifinished product is heated, and said semifinished product is subsequently removed from the housing. Thermal convection, which is directed substantially upward in the housing, is produced in the interior of the housing.

Abstract: A method is described for producing fibre-reinforced plastic moulded parts, wherein endless fibre strands are fed by a fibre braking device and/or cut fibres via a gravimetric metering device, and a plastic material to be melted, by a volumetric metering device are fed to a single-screw plasticizing unit. Plastic material which is molten and is mixed with fibre material is injected into a moulding tool by an injection stroke of the plasticizing screw. According to the application, the ACTUAL mass flow of the plastic material is calculated from the ACTUAL volume flow of the plastic material and from the ACTUAL mass flow of the fibre material. The ACTUAL mass flow of the plastic material is compared to a TARGET mass flow of the plastic material, and the rotation speed nd of the rotary drive of the metering element of the metering device is adapted.

Abstract: A method for the variothermal temperature control of an injection mould using a temperature control device, the method including at least the following steps: in a learning phase, determining a temperature control characteristic of the temperature-controllable system including at least the injection mould and the temperature control device, in order to obtain individual reference values for the system, with which the temperature control device can be controlled in order to obtain a nominal temperature profile; and in a production phase: temperature control of the injection mould with the reference values determined during the learning phase; determining deviations of an actual temperature profile of the injection mould in relation to the nominal temperature profile during the production cycle and calculating corrected reference values from these deviations; and carrying out a resulting production process using the corrected reference values.

Abstract: An example of a method for time-resolved calculation of a deformation of a body comprises calculating (110) a model of the body during the deformation. The method further comprises calculating (120) a predicted X-ray image for the body for a plurality of time points during the deformation based on the model. The method further comprises obtaining (130) one measured X-ray image of the body each for the time points during the deformation. The method further comprises modifying (140) the model based on the predicted X-ray images and the measured X-ray images.

Abstract: A method for determining an actual volume Vr of an injection-moldable compound during an injection-molding process is disclosed. The injection-moldable compound is introduced into at least one cavity of the mould. The method includes the steps of: a) determining a theoretical volume Vt from process variables at least during a filling phase of the injection-molding process, b) determining and/or measuring at least one value for at least one compound pressure pM, c) selecting a material-specific compression k (p), corresponding to the value of pM, of the injection-moldable compound, and d) calculating an actual volume Vr by taking into account the compression k (p).

Abstract: A method for operating an injection-molding machine, including the steps: a) in a current injection-molding cycle, after an accepted-part reference injection-molding cycle learned in a learning phase: detecting a compound pressure change k1 relative to an accepted-part reference compound pressure pmasse, ref during at least part of an injection phase of the current injection-molding cycle by measuring a current compound pressure pmasse, act and comparing the current compound pressure p with the accepted-part reference compound pressure pmasse, ref, b) determining a target mold internal pressure curve pwkz,soll (1) for a holding-pressure phase of the current injection-molding cycle, wherein for this purpose a mold internal pressure curve pwkz,ref (t) of the accepted-part reference injection-molding cycle is adjusted at least in dependence on the compound pressure change k1 detected in step a), and c) traveling the holding-pressure curve pmasse, Hld, act (t) of the current injection-molding cycle in such a way

Abstract: In a method for operating an injection moulding machine in the absence of a backflow barrier, plastic melt is injected by a plasticising device into a cavity in a screw antechamber of a plasticising screw adapted to rotate about a longitudinal axis and to move translationally by a drive unit during an injection phase and a holding-pressure phase. A rotational drive of the drive unit is controlled such that a speed of the plasticising screw causes overlay of a backflow of the plastic melt from the screw antechamber back into screw threads of the plasticising screw by an opposing delivery flow as a result of a rotation of the plasticising screw due to a translational injection movement of the plasticising screw. A differential flow is established from the backflow and the opposing delivery flow and influenced at least during the injection phase by influencing the speed of the plasticising screw.

Abstract: A method is described for producing fibre-reinforced plastic moulded parts, wherein endless fibre strands are fed by a fibre braking device and/or cut fibres via a gravimetric metering device, and a plastic material to be melted, by a volumetric metering device are fed to a single-screw plasticizing unit. Plastic material which is molten and is mixed with fibre material is injected into a moulding tool by an injection stroke of the plasticizing screw. According to the application, the ACTUAL mass flow of the plastic material is calculated from the ACTUAL volume flow of the plastic material and from the ACTUAL mass flow of the fibre material. The ACTUAL mass flow of the plastic material is compared to a TARGET mass flow of the plastic material, and the rotation speed nd of the rotary drive of the metering element of the metering device is adapted.

Abstract: A method for the automatic process monitoring and/or process diagnosis of a piece-based process, in particular a production process, in particular an injection-molding process, including the steps: a) performing an automated reference finding in order to obtain reference values (r1 . . . rn) from values (x0 . . . xj) of at least one process variable; b) performing an anomaly detection on the basis of the reference values (r1 . . . rn) found in step (a); c) performing an automated cause analysis and/or an automated fault diagnosis on the basis of a qualitative model of process relationships and/or on the basis of dependencies of various process variables on each other.

Abstract: A method for the variothermal temperature control of an injection mould using a temperature control device, the method including at least the following steps: in a learning phase, determining a temperature control characteristic of the temperature-controllable system including at least the injection mould and the temperature control device, in order to obtain individual reference values for the system, with which the temperature control device can be controlled in order to obtain a nominal temperature profile; and in a production phase: temperature control of the injection mould with the reference values determined during the learning phase; determining deviations of an actual temperature profile of the injection mould in relation to the nominal temperature profile during the production cycle and calculating corrected reference values from these deviations; and carrying out a resulting production process using the corrected reference values.

Abstract: The invention relates to a method for producing molded parts, wherein semifinished product is heated in a heating device and is subsequently fed to a shaping machine. The heating device has a closed housing having a door or has a separately closable opening. The heating device optionally has a dividable housing, in the case of which the housing components can be moved away from each other in order to form an opening and can be moved toward each other in order to form a closed housing. One or more radiant heaters, in particular infrared radiant heaters, are provided in the interior of the housing. Semifinished product is introduced into the interior of the housing and radiant heat produced by the radiant heaters is applied thereto, said semifinished product is heated, and said semifinished product is subsequently removed from the housing. Thermal convection, which is directed substantially upward in the housing, is produced in the interior of the housing.

Abstract: The invention relates to a method for filling a mold cavity of a molding tool in a volumetrically correct manner. A molded part/volume equivalence is ascertained during a learning phase, and production injection-molding cycles are influenced during a production phase such that the molded part/volume equivalence ascertained during the learning phase is also satisfied during the production injection-molding cycle.

Abstract: A method for determining an actual volume Vr of an injection-moldable compound during an injection-molding process is disclosed. The injection-moldable compound is introduced into at least one cavity of the mould. The method includes the steps of: a) determining a theoretical volume Vt from process variables at least during a filling phase of the injection-molding process, b) determining and/or measuring at least one value for at least one compound pressure pM, c) selecting a material-specific compression k (p), corresponding to the value of pM, of the injection-moldable compound, and d) calculating an actual volume Vr by taking into account the compression k (p).

Abstract: In a method for operating an injection moulding machine in the absence of a backflow barrier, plastic melt is injected by a plasticising device into a cavity in a screw antechamber of a plasticising screw adapted to rotate about a longitudinal axis and to move translationally by a drive unit during an injection phase and a holding- pressure phase. A rotational drive of the drive unit is controlled such that a speed of the plasticising screw causes overlay of a backflow of the plastic melt from the screw antechamber back into screw threads of the plasticising screw by an opposing delivery flow as a result of a rotation of the plasticising screw due to a translational injection movement of the plasticising screw. A differential flow is established from the backflow and the opposing delivery flow and influenced at least during the injection phase by influencing the speed of the plasticising screw.

Abstract: The invention relates to a method for filling a mold cavity of a molding tool in a volumetrically correct manner. A molded part/volume equivalence is ascertained during a learning phase, and production injection-molding cycles are influenced during a production phase such that the molded part/volume equivalence ascertained during the learning phase is also satisfied during the production injection-molding cycle.

Abstract: A manufacturing tray and system for ergonomic operations includes a tray, conveyance system, and loading and unloading stations configured with optimal dimensions and placement to allow an operator to load and unload trays while maintaining ideal standing posture. A conveyor system and trays transported thereon have a width less than the length of an average human forearm, while lanes of a tray rack and a flow rack open in front of a tray loading position on the conveyor. The height of the conveyor has a height approximately the height of the hips of an average standing operator. The tray includes a sliding rail for low-friction sliding of the tray along the conveyor. The tray may also include a handle which allows an operator to flip the tray position from vertical to horizontal or horizontal to vertical depending on whether the tray is to be stored or used.

Abstract: The invention relates to a tool for the electrochemical machining of a fuel injection device, the tool having an electrode holder and an electrode element which forms a cathode during the machining operation in order to be able to electrochemically remove material from the fuel injection device in a machining region. The electrode element is arranged in such a way that it can be displaced in relation to the electrode holder.