Abstract: The invention relates to a furnace system and a method for the controlled heat treatment of sheet metal components in individual component zones. The invention proposes a furnace system that is suitable for partly heating components made of steel sheet to a temperature above the AC3 temperature. The furnace system has a production furnace for heating the steel sheet parts to a temperature that is close to but below the AC3 temperature, said furnace system further having a profiling furnace with at least one level. The at least one level has an upper and lower part and a product-specific intermediate flange that is introduced into a corresponding receiving area. The product-specific intermediate flange is designed to impose a specified temperature profile on the component with temperatures over AC3 for regions to be hardened and below AC3 for softer regions. Furthermore, the invention relates to a corresponding method for partly heating steel sheet parts to a temperature above the AC3 temperature.

Abstract: The subject innovation relates to a furnace and a method for treatment of at least one workpiece in the furnace, wherein the workpiece is heated up in a chamber of the furnace by at least two heating units which are each associated with a workpiece having a first side and a second side, and whereby a first heating unit heats up the first side of the workpiece and a second heating unit heats up the second side of the workpiece. Further, each heating unit comprises at least two pressure pistons with heatable contact surfaces that are arranged next to each other and with the same orientation. Contact is made between the first side of the workpiece and the contact surfaces of the first heating unit, and in that contact is likewise made between the second side of the workpiece and the contact surfaces of the second heating unit.

Abstract: The invention relates to a furnace system and a method for the controlled heat treatment of sheet metal components in individual component zones. The invention proposes a furnace system that is suitable for partly heating components made of steel sheet to a temperature above the AC3 temperature. The furnace system has a production furnace for heating the steel sheet parts to a temperature that is close to but below the AC3 temperature, said furnace system further having a profiling furnace with at least one level. The at least one level has an upper and lower part and a product-specific intermediate flange that is introduced into a corresponding receiving area. The product-specific intermediate flange is designed to impose a specified temperature profile on the component with temperatures over AC3 for regions to be hardened and below AC3 for softer regions. Furthermore, the invention relates to a corresponding method for partly heating steel sheet parts to a temperature above the AC3 temperature.

Abstract: The invention relates to a furnace system and a method for the controlled heat treatment of sheet metal components in individual component zones. The invention proposes a furnace system that is suitable for partly heating components made of steel sheet to a temperature above the AC3 temperature. The furnace system has a production furnace for heating the steel sheet parts to a temperature that is close to but below the AC3 temperature, said furnace system further having a profiling furnace with at least one level. The at least one level has an upper and a lower part and a product-specific intermediate flange that is introduced into a corresponding receiving area. The product-specific intermediate flange is designed to impose a specified temperature profile on the component with temperatures over AC3 for regions to be hardened and below AC3 for softer regions. Furthermore, the invention relates to a corresponding method for partly heating steel sheet parts to a temperature above the AC3 temperature.

Abstract: The invention relates to a heat-proof suction device for hot metal sheets. A suction device according to the invention for picking up and holding an essentially flat metal object has a suction gripper having a suction chamber and having a jacket that laterally encloses the suction chamber and that is elastically deformable in the vertical direction essentially perpendicular to the surface of the object that is to be picked up. In this context, the jacket that is elastically deformable in the vertical direction consists of a metal that is heat-resistant up to at least 1000° C.

Abstract: The invention relates to a roller hearth furnace for heating workpieces, comprising at least one furnace chamber for receiving the workpieces, the chamber having at least two lateral furnace walls. At least one transport roller for transporting the workpieces through the furnace chamber is arranged inside the furnace chamber, and each of the furnace walls has at least one opening through which the transport roller can be guided. At least one rolling bearing unit is arranged on each of the outer sides of the furnace walls, said rolling bearing unit being designed to accommodate and support the transport roller outside the furnace chamber.

Abstract: The invention relates to a device and to a method to diffuse Al—Si into a surface of an Al—Si-coated steel sheet. First of all, a steel sheet is fed into a furnace that can be heated up to the diffusion temperature and subsequently, it is conveyed contactlessly through the furnace that has been heated up to the diffusion temperature. In this process, the steel sheet is heated up to the diffusion temperature, whereby the Al—Si diffuses into a surface of the steel sheet. Subsequently, the steel sheet with the Al—Si that has diffused into a surface is cooled off at a rate of less than approximately 25K/sec.

Abstract: The invention relates to a roller hearth furnace for heating workpieces, comprising at least one furnace chamber for receiving the workpieces, the chamber having at least two lateral furnace walls. At least one transport roller for transporting the workpieces through the furnace chamber is arranged inside the furnace chamber, and each of the furnace walls has at least one opening through which the transport roller can be guided. At least one rolling bearing unit is arranged on each of the outer sides of the furnace walls, said rolling bearing unit being designed to accommodate and support the transport roller outside the furnace chamber.

Abstract: The invention relates to a furnace system and a method for the controlled heat treatment of sheet metal components in individual component zones. The invention proposes a furnace system that is suitable for partly heating components made of steel sheet to a temperature above the AC3 temperature. The furnace system has a production furnace for heating the steel sheet parts to a temperature that is close to but below the AC3 temperature, said furnace system further having a profiling furnace with at least one level. The at least one level has an upper and a lower part and a product-specific intermediate flange that is introduced into a corresponding receiving area. The product-specific intermediate flange is designed to impose a specified temperature profile on the component with temperatures over AC3 for regions to be hardened and below AC3 for softer regions. Furthermore, the invention relates to a corresponding method for partly heating steel sheet parts to a temperature above the AC3 temperature.

Abstract: There is provided a system and method for heating at least one workpiece in a furnace by which the workpiece is heated by heating facilities. An exemplary method comprises heating a complete workpiece with the heating facilities. The exemplary method also comprises moving the workpiece out of the furnace such that a first portion of the workpiece is still inside the furnace while a second portion of the workpiece is outside the furnace and holding the workpiece at this position for a predetermined time period. Finally, the exemplary method comprises moving the complete workpiece out of the furnace.

Abstract: The subject innovation relates to a multi-deck chamber furnace for heating up workpieces comprising a furnace housing having at least two horizontal furnace chambers that are arranged vertically one above the other, whereby each furnace chamber has an opening in a furnace wall on one side, and said opening can be closed by a furnace door. The furnace is characterized in that the furnace doors are arranged in front of the openings of the appertaining furnace chambers in such a way that the transversal axes of the furnace doors enclose an angle ? with the furnace wall that is greater than 0° and smaller than 45°, whereby the transversal axis of a furnace door runs perpendicular to the horizontal axis of a furnace door. Furthermore, the furnace doors can be moved linearly along these transversal axes.

Abstract: The subject innovation relates to a furnace and a method for treatment of at least one workpiece in the furnace, wherein the workpiece is heated up in a chamber of the furnace by at least two heating units which are each associated with a workpiece having a first side and a second side, and whereby a first heating unit heats up the first side of the workpiece and a second heating unit heats up the second side of the workpiece. Further, each heating unit comprises at least two pressure pistons with heatable contact surfaces that are arranged next to each other and with the same orientation. Contact is made between the first side of the workpiece and the contact surfaces of the first heating unit, and in that contact is likewise made between the second side of the workpiece and the contact surfaces of the second heating unit.

Abstract: There is provided a system and method for heating at least one workpiece in a furnace by which the workpiece is heated by heating facilities. An exemplary method comprises heating a complete workpiece with the heating facilities. The exemplary method also comprises moving the workpiece out of the furnace such that a first portion of the workpiece is still inside the furnace while a second portion of the workpiece is outside the furnace and holding the workpiece at this position for a predetermined time period. Finally, the exemplary method comprises moving the complete workpiece out of the furnace.

Abstract: The invention relates to a device for heating up extrusion dies prior to their installation in an extruder, whereby the dies are heated up to a prescribed temperature and kept at this temperature. The device is characterized in that it comprises a gas-tight and thermally insulated oven housing (50) that has at least one charging and discharging opening (70) with an oven cover (40) and, inside the oven housing, there is an impact nozzle field (20) into which a die (90) can be placed, and in that the device (10) is provided with a heating means (100) that heats up a fluid that flows through the openings (110) of the impact nozzle field (20). The invention also relates to a method for heating up extrusion dies prior to their installation in an extruder.

Abstract: The invention relates to a device for heating up extrusion dies prior to their installation in an extruder, whereby the dies are heated up to a prescribed temperature and kept at this temperature. The device is characterized in that it comprises a gas-tight and thermally insulated oven housing (50) that has at least one charging and discharging opening (70) with an oven cover (40) and, inside the oven housing, there is an impact nozzle field (20) into which a die (90) can be placed, and in that the device (10) is provided with a heating means (100) that heats up a fluid that flows through the openings (110) of the impact nozzle field (20). The invention also relates to a method for heating up extrusion dies prior to their installation in an extruder.