The invention relates to a charging apparatus for the dimensionally stable heat treatment of workpieces (1), in particular those of a disk or ring shape, having a charging rack (10) for horizontally mounting the workpiece (1), wherein at least s three screw-type mandrels or ball joint mandrels (2) are arranged on the charging rack (10), the ball joint mandrels (2) having a base plate (3) with a female thread (7), a screw element (4) with a male thread (7) matched to the female thread (7) and a head that has a spherical segment surface, as well as a pressure piece (5) matched precisely to the spherical segment surface of the head and arranged movably thereon.

A direct resistance heating apparatus includes first and second electrodes arranged with a space provided therebetween, a power supply electrically connected to the electrodes, an electrode moving mechanism configured to move, in a state in which the electrodes are in contact with a workpiece and in a state in which current is applied from the power supply to the workpiece through the electrodes, at least one of the electrodes along an opposing direction in which the electrodes are opposed to each other, first and second holders configured to hold the workpiece such that, in a state in which the at least one of the electrodes is moved, a heating target region of the workpiece located between the electrodes is held between the holders in the opposing direction, and a holder moving mechanism configured to move at least one of the holders to pull the workpiece along the opposing direction.

Provided is a heat treatment apparatus capable of more reliably conveying a workpiece along a desired conveyance path by a simple configuration.

A heat treatment apparatus 1 includes a heating chamber 7, a cooling chamber 8 disposed adjacent to the heating chamber 7, a conveyance tray 2 to support the workpiece 100, and a first conveyance mechanism 3 to convey the conveyance tray 2 along a conveyance path B1 from the outside of the heating chamber 7 to the outside of the cooling chamber 8 through the heating chamber 7 and the cooling chamber 8.

The present invention relates to a thermal treatment furnace containing a thermal treatment chamber (1b) in which a thin metal sheet (20) is continuously conveyed horizontally while being floated by air (21), in which the thermal treatment chamber (1b) contains a plurality of air injection nozzles (6) and a plurality of mist spray nozzles (8) that are arranged along a pass line (PL) of the thin metal sheet (20) in the thermal treatment chamber (1b), on a lower side and an upper side of the pass line (PL) and so as to be orthogonal to the pass line (PL) in a side view.

An apparatus for loading/unloading workpieces, including a furnace heating a workpiece, and a robot loading and/or unloading a workpiece into/from the furnace. The robot may include a manipulator linkage and a fork at an end of the manipulator linkage. The fork may have an upper side on which a workpiece is placed while being loaded into and/or unloaded from the furnace. The fork may include a parallel arrangement of fork elements, each fork element in the fork having a length and rectangular cross section perpendicular to the length. Each fork element may have a workpiece carrying surface on which a workpiece is placed and an opposite surface to the workpiece carrying surface. The fork element may include a heat insulator disposed on the workpiece carrying surface at least over an area where a workpiece is placed to equalize longitudinal thermal expansions in the workpiece carrying surface and the opposite surface.

A method of manufacturing a turbine blade, the method comprising forming a forging by forging stainless steel; heat treating the forging; and cooling the forging after the heat treatment; wherein in the heat treatment and the cooling, a plurality of the forgings are arranged in alignment, and adjacent forgings of the plurality of forgings are disposed so that at least respective portions of portions of the adjacent forgings corresponding to a region from a portion corresponding to a platform of a turbine blade to a center in a longitudinal direction of the turbine blade face each other and warm each other via radiant heat.

Embodiments of the present invention relate to a handling device for handling a metal component part between a furnace device and a further processing device. The handling device comprises a temperature-control chamber, in which the metal component part can be inserted, and a conveying device. The temperature-control chamber comprises a temperature-control unit that adjusts a temperature in the temperature-control chamber. The temperature-control chamber can be conveyed between a receiving position, in which the metal component part can be conveyed from the furnace device into the temperature-control chamber, and a dispensing position, in which the metal component part can be conveyed from the temperature control chamber to the further processing device. The conveying device is configured in such a manner that the metal component part can be conveyed in the receiving position by means of the conveying device between the furnace device and the temperature-control chamber and that the metal component part can be conveyed in the dispensing position by means of the conveying device between the temperature-control chamber and the further processing device.

A transporting apparatus for rolling ingots, having at least one travelling carriage, includes a tilting frame and a guide frame, wherein the tilting frame has at least one longitudinally displaceable transporting carriage with a rail section, which is intended for accommodating an ingot rest and, for the purpose of forming a rail extension, can be positioned collinearly in relation to a furnace rail, and the guide frame has at least one hook carriage, which can be moved essentially parallel to the transporting carriage and comprises at least one tiltable hook for engaging in the ingot rest.

An apparatus for heat treatment of coated semi-finished steel products may comprise a heatable continuous furnace having a conveyer for moving the coated semi-finished steel products. The conveyer may be comprised of a plurality of conveyer elements, such as rollers, for example, for supporting the coated semi-finished steel products. To prevent, or at least substantially prevent, interaction between semi-finished steel products having different coatings, a decoupling portion of the continuous furnace may include a first conveyer element group and a second conveyer element group, each having at least one conveyer element. The coated semi-finished steel products may be supported in the decoupling portion either by the conveyer elements of the first conveyer element group or by the conveyer elements of the second conveyer element group.

The invention relates to a device for treating, by heat tempering, a metal element (1) of the tube or bar type having arched portions. The device includes heat treatment means having an induction coil (23) and a sprinkler ring (26). According to the invention, this device includes means (2) for holding the metal element (1) that is composed of a clip (2) arranged so as to clamp around an end portion, referred to as the top, of the metal element and to keep the metal element freely suspended under said clip. The device also includes multi-axis robots (24, 28) suitable for moving the induction coil (23) and the sprinkler ring (26) simultaneously along the metal element (1) starting from an end portion, referred to as the bottom, of the metal element that is opposite the top portion thereof.