Abstract: The invention relates to a method for a model-based determination for processing an order inquiry (AA) by means of a production model (PM) of a film extrusion line (10), comprising the following steps: Capture at least one model parameter (MP) in the form of an output parameter (AP) of the production model (MP) to capture a requested film product property of the order inquiry (AA), Forming a parameter relationship between the detected at least one output parameter (AP) and at least one model parameter (MP) in the form of an input parameter (EP) of the production model (PM) for determining a production situation of the film extrusion line (10), Generating at least one input parameter (EP) of the production model (PM) based on the formed parameter relationship as a default for a production process on the film extrusion line (10).

Abstract: The present invention relates to a process for the purification of hydrogen cyanide, comprising the steps of a) splitting a liquid feed stream (1) comprising hydrogen cyanide into at least a first liquid stream (2) and a second liquid stream (3), b) introducing the first liquid stream (2) into a distillation column (4) at a point between the top and the bottom of the distillation column, c) introducing the second liquid stream (3) into the distillation column (4) at the top of the distillation column, d) withdrawing an overhead vapor stream (5) enriched in hydrogen cyanide from the distillation column (4), and e), withdrawing a bottom stream (6) depleted in hydrogen cyanide, wherein the temperature of the second liquid stream (3) in step c) is lower than the temperature of the first liquid stream (2) in step b).

Abstract: The invention relates to a method for a model-based determination of model parameters (MP) of a production model (PM) of a film extrusion line (10), comprising the following steps: Detection of at least two model parameters (MP) in the form of input parameters (EP) of the production model (PM) for detecting a production situation of the film extrusion line (10) and/or in the form of output parameters (AP) of the production model (PM) for detecting a film product situation of the film extrusion line (10), Forming a parameter relationship between the acquired model parameters (MP) by means of the production model (PM), Determining at least one further model parameter (MP) in the form of a non-detected input parameter (EP) and/or a non-detected output parameter (AP) of the production model (PM).

Abstract: The invention relates to a control method for controlling at least part of a production process of a film extrusion line (10) by means of a production model (PM), comprising the following steps: Acquisition of at least one model parameter (MP) in the form of an output parameter (AP) of the production model (PM) for the acquisition of a film product situation, Determining a difference value (DW) between the at least one sensed output parameter (AP) and a correlating set point (OW), Forming a parameter relationship between the determined difference value (DW) and at least one model parameter (MP) in the form of an input parameter (EP) of the production model (PM), Generating at least one control value (TW) as a default for the at least one input parameter (EP) of the formed parameter relationship.

Abstract: A method for checking at least one subregion of a component, in particular a component of a turbomachine, including at least the steps of a) providing a blank; b) producing at least the subregion from the blank by machining the blank using at least one tool and using at least one force sensor-to record at least one force curve of at least one force acting during machining on the at least one tool; c) checking whether there is at least one deviation-of the at least one force curve from at least one predetermined target curve-of the at least one force curve, the at least one deviation-characterizing at least one material defect-contained in an unmachined segment of the subregion. A checking device for checking at least a subregion of a component is also provided.

Abstract: The present invention relates to an injection molded article comprising: i) 27% to 87% by weight based on the total weight of the components i to iv of a polyester constructed from aliphatic dicarboxylic acids and aliphatic diols; ii) 3% to 15% by weight based on the total weight of the components i to iv of an aliphatic-aromatic polyester comprising: ii-a) 30 to 70 mol % based on the components ii-a to ii-b of a C6-C18-dicarboxylic acid; ii-b) 30 to 70 mol % based on the components ii-a to ii-b of terephthalic acid; ii-c) 99 to 100 mol % based on the components ii-a to ii-b of 1,3-propanediol or 1,4-butanediol; ii-d) 0% to 1% by weight based on the components ii-a to ii-c of a chain extender and/or branching agent; iii) 0% to 35% by weight based on the total weight of the components i to iv of polylactic acid; iv) 10% to 35% by weight based on the total weight of the components i to iv of at least one surface-modified silicate selected from the group consisting of: kaolin, muscovite, montmorillonite, tal

Abstract: The present invention relates to a method for manufacturing a plate of a turbomachine having a plurality of receiving grooves, which are formed on the cylindrical peripheral surface of the plate in order to receive blade roots of blades of the turbomachine. The receiving grooves extend in a straight line from one face of the plate to the other face of the plate, such that a straight line delimits the receiving groove from each point on the cross section of the receiving groove on one of the faces to the corresponding point on the cross section on the other face. A circular plate is provided and a plurality of receiving grooves are introduced into the plate simultaneously on opposing regions relative to a central axis of rotation of the plate.

Abstract: The present invention relates to a process for producing a (co)polyester, wherein the (co)polyester at least partially consists of 1,4-butylene dicarboxylate units, in a degassing plant, wherein the crude (co)polyester is degassed in the presence of 0.1% to 5% by weight, based on the total weight of the input materials, of an entraining agent at a pressure between 5 to 300 mbar.

Abstract: The present invention relates to an injection molded article comprising: i) 30% to 90% by weight based on the total weight of the components i to iii of a biodegradable polyester comprising: i-a) 90 to 100 mol % based on the components a to b of succinic acid; i-b) 0 to 10 mol % based on the components a to b of one or more C6-C20 dicarboxylic acids; i-c) 99 to 100 mol % based on the components a to b of 1,3-propanediol or 1,4-butanediol; i-d) 0% to 1% by weight based on the components a to c of a chain extender and/or branching agent; ii) 0% to 35% by weight based on the total weight of the components i to iii of polylactic acid; iii) 10% to 35% by weight based on the total weight of the components i to iii of at least one methacryloylsilane- or vinylsilane-modified silicate selected from the group consisting of: kaolin, muscovite, montmorillonite, talc and wollastonite.

Abstract: The present invention relates to an injection molded article comprising: i) 27% to 87% by weight based on the total weight of the components i to iv of a polyester constructed from aliphatic dicarboxylic acids and aliphatic diols; ii) 3% to 15% by weight based on the total weight of the components i to iv of an aliphatic-aromatic polyester comprising: ii-a) 30 to 70 mol % based on the components ii-a to ii-b of a C6-C18-dicarboxylic acid; ii-b) 30 to 70 mol % based on the components ii-a to ii-b of terephthalic acid; ii-c) 99 to 100 mol % based on the components ii-a to ii-b of 1,3-propanediol or 1,4-butanediol; ii-d) 0% to 1% by weight based on the components ii-a to ii-c of a chain extender and/or branching agent; iii) 0% to 35% by weight based on the total weight of the components i to iv of polylactic acid; iv) 10% to 35% by weight based on the total weight of the components i to iv of at least one surface-modified silicate selected from the group consisting of: kaolin, muscovite, montmorillonite, tal

Abstract: The present invention relates to an injection-molded item with HDT-B temperature of from 80 to 105° C. in accordance with DIN EN ISO 75-2:2004-09, comprising: i) from 47 to 59% by weight, based on the total weight of components i to iv, of a biodegradable aliphatic polyester; ii) from 3 to 14% by weight, based on the total weight of components i to iv, of an aliphatic-aromatic polyester; iii) from 15 to 24% by weight, based on the total weight of components i to iv, of polylactic acid; iv) from 10 to 35% by weight, based on the total weight of components i to iv, of at least one mineral filler; where the following applies to the compounded material comprising components i to iv: the ratio of component i to component iii in the compounded material is from 2.2 to 3.2, and the MVR of the compounded material is from 8 to 50 cm3/10 min in accordance with DIN EN 1133-1 of Mar. 1, 2012 (190° C., 2.16 kg).

Abstract: The present invention relates to an item produced by thermoforming, comprising: i) from 45 to 59% by weight, based on the total weight of components i to iv, of a biodegradable polyester comprising: i-a) from 90 to 100 mol %, based on components i-a to i-b, of succinic acid; i-b) from 0 to 10 mol %, based on components i-a to i-b, of one or more C6-C20 dicarboxylic acids; i-c) from 98 to 102 mol %, based on components i-a to i-b, of 1,3-propanediol or 1,4-butanediol; i-d) from 0.05 to 1% by weight, based on components i-a to i-c, of a chain extender or branching agent; ii) from 5 to 14% by weight, based on the total weight of components i to iv, of an aliphatic-aromatic polyester comprising: ii-a) from 30 to 70 mol %, based on components ii-a to ii-b, of a C6-C18-dicarboxylic acid; ii-b) from 30 to 70 mol %, based on components ii-a to ii-b, of terephthalic acid; ii-c) from 98 to 100 mol %, based on components ii-a to ii-b, of 1,3-propanediol or 1,4-butanediol; ii-d) from 0.

Abstract: The present invention relates to an item produced by thermoforming, comprising: i) from 45 to 59% by weight, based on the total weight of components i to iv, of a biodegradable polyester comprising: i-a) from 90 to 100 mol %, based on components i-a to i-b, of succinic acid; i-b) from 0 to 10 mol %, based on components i-a to i-b, of one or more C6-C20 dicarboxylic acids; i-c) from 98 to 102 mol %, based on components i-a to i-b, of 1,3-propanediol or 1,4-butanediol; i-d) from 0.05 to 1% by weight, based on components i-a to i-c, of a chain extender or branching agent; ii) from 5 to 14% by weight, based on the total weight of components i to iv, of an aliphatic-aromatic polyester comprising: ii-a) from 30 to 70 mol %, based on components ii-a to ii-b, of a C6-C18-dicarboxylic acid; ii-b) from 30 to 70 mol %, based on components ii-a to ii-b, of terephthalic acid; ii-c) from 98 to 100 mol %, based on components ii-a to ii-b, of 1,3-propanediol or 1,4-butanediol; ii-d) from 0.

Abstract: The present invention relates to an injection-molded item with HDT-B temperature of from 80 to 105° C. in accordance with DIN EN ISO 75-2:2004-09, comprising: i) from 47 to 59% by weight, based on the total weight of components i to iv, of a biodegradable aliphatic polyester; ii) from 3 to 14% by weight, based on the total weight of components i to iv, of an aliphatic-aromatic polyester; iii) from 15 to 24% by weight, based on the total weight of components i to iv, of polylactic acid; iv) from 10 to 35% by weight, based on the total weight of components i to iv, of at least one mineral filler; where the following applies to the compounded material comprising components i to iv: the ratio of component i to component iii in the compounded material is from 2.2 to 3.2, and the MVR of the compounded material is from 8 to 50 cm3/10 min in accordance with DIN EN 1133-1 of March 1, 2012 (190° C., 2.16 kg).

Abstract: The invention relates to a method for producing and repairing a part comprising at least two joined metal components, especially components of a gas turbine. In said method, corresponding joining surfaces of the components are joined together and connected by means of a pressure welding process, a machining allowance in the area of a joining zone of the two joining surfaces is upset during the joining process, and once the two components have been joined together, the machining allowance is machined by means of a precise electrochemical machining (PECM) process until a predefined final contour of the part has been obtained. The invention further relates to a gas turbine part obtained by means of the disclosed method.

Abstract: A method for removing material from a component that is connected as an anode is disclosed. In an embodiment, an electrode that is connected as a cathode is guided to the component such that a gap is formed, an electrolyte is introduced into the gap, and a closed system is formed for the electrolyte by the formation of a duct. The electrolyte is continuously guided from an inlet opening to an outlet opening of the duct. Forming the duct, e.g., by guide elements that are mounted on the electrode, ensures that only those surface parts of the component to be machined from which material is to be removed enter in contact with the electrolyte while the other surface parts do not enter in contact with the electrolyte. Since the electrolyte is continuously guided across the surface, used electrolyte is continuously discharged along with residual matter while fresh electrolyte is delivered.

Abstract: The present invention relates to biodegradable polymer mixtures comprising: A) from 15 to 50% by weight, based on components A and B, of a biodegradable, aliphatic-aromatic polyester with MFR (190° C./2.

Abstract: The present invention relates to an item produced via thermoforming and comprising: i) a biodegradable polyester comprising: a) succinic acid; b) optionally one or more C6-C20 dicarboxylic acids; e) 1,3-propanediol or 1,4-butanediol; f) a chain extender or branching agent; ii) polylactic acid; iii) at least one mineral filler; The invention further relates to processes for producing the abovementioned items.

Abstract: A device for surface-peening, especially for the ultrasound shot-peening of a component of a gas turbine, having at least one vibration means that comprises a surface that propels the peening material, and having a holding means with which a surface area of the component and the surface of the vibration means can be arranged with respect to each other is disclosed. In this context, the angular position of the surface of the at least one vibration means can be adjusted relative to the surface area of the component of the gas turbine. Moreover, a method is provided in which the angular position of the surface of the at least one vibration means can be adjusted relative to the surface area of the component.

Abstract: A method for manufacturing gear wheels, specifically transmission gear wheels, is disclosed. An embodiment of the method includes the following steps: a) preparation of a base body for a gear wheel, b) electrochemical processing of the base body by a precise electrochemical machining process (PECM process), where several recesses running between the teeth of the gear wheel are made simultaneously electrochemically to manufacture the teeth of the gear wheel.