Disclosed is a vertical heat treatment apparatus. The apparatus includes: a heat treatment furnace provided with a furnace inlet at a lower end thereof; a cover unit disposed on the furnace inlet of the heat treatment furnace; a cover unit opening/closing mechanism configured to support the cover unit in a cantilever manner from a bottom side of the cover unit; and an auxiliary mechanism configured to press the cover unit from the bottom side of the cover unit when the cover unit is disposed on the furnace inlet. The auxiliary mechanism is provided with a toggle mechanism.

To provide a carriage for receiving molten metal with a mechanism for moving a ladle up and down and a method for transporting molten metal to safely move a ladle for receiving a molten metal up and down and transport it. The carriage (10) for receiving molten metal to transport the ladle that receives molten metal from a furnace (C) comprises a carriage (20) for travelling on a route (L), guiding columns (30) that are placed on the carriage (20), a frame (40) that horizontally extends from the guiding columns and moves up and down above the carriage (20), a mechanism (50) for moving the ladle, which mechanism is placed on the frame (40) and horizontally moves the ladle, and the driver (60) for moving the frame up and down.

Disclosed is a sintering furnace comprising a furnace body and a lifting device, wherein the furnace body comprises a furnace chamber (10) and a furnace mouth (20), the furnace chamber (10) is connected with the furnace mouth (20), wherein the sintering furnace further comprises a sealing member (30) provided at the lifting device; when the sintering furnace is in a loading or unloading condition, the sealing member (30) blocks the furnace mouth (20). When the sintering furnace is in an unloading condition, the sealing member (30) can block the furnace mouth (20), the furnace chamber (10) does not contact with the outside directly, thus the temperature in the furnace chamber (10) will not drop sharply, and the service life of the sintering furnace will be increased.

A multi-window platen oven for simultaneously heating a plurality of blanks, for example aluminum blanks, before forming the heated blanks in a production line is provided. The oven includes a plurality of vertically aligned shelves disposed in an existing press assembly so that no additional floor space is required. The shelves are attachable to an upper press bed and one another. The upper press bed lifts the attached shelves to present an open window for receiving an unheated blank and/or removing a heated blank from the oven. The remaining windows remain closed and continue heating while the blanks are transferred to and from the oven. After closing the one open window, another window opens to receive another unheated blank and/or remove another heated blank. Thus, the multi-window platen oven continuously provides blanks which are ready for warm or hot forming.

Disclosed is a sintering furnace comprising a furnace body and a lifting device, wherein the furnace body comprises a furnace chamber (10) and a furnace mouth (20), the furnace chamber (10) is connected with the furnace mouth (20), wherein the sintering furnace further comprises a sealing member (30) provided at the lifting device; when the sintering furnace is in a loading or unloading condition, the sealing member (30) blocks the furnace mouth (20). When the sintering furnace is in an unloading condition, the sealing member (30) can block the furnace mouth (20), the furnace chamber (10) does not contact with the outside directly, thus the temperature in the furnace chamber (10) will not drop sharply, and the service life of the sintering furnace will be increased.

A carriage for receiving molten metal with a mechanism for moving a ladle up and down and a method for transporting molten metal to safely move a ladle for receiving a molten metal up and down and transport it. The carriage (10) for receiving molten metal to transport the ladle that receives molten metal from a furnace (C) comprises a carriage (20) for travelling on a route (L), guiding columns (30) that are placed on the carriage (20), a frame (40) that horizontally extends from the guiding columns and moves up and down above the carriage (20), a mechanism (50) for moving the ladle, which mechanism is placed on the frame (40) and horizontally moves the ladle, and the driver (60) for moving the frame up and down.

To provide a carriage for receiving molten metal with a mechanism for moving a ladle up and down and a method for transporting molten metal to safely move a ladle for receiving a molten metal up and down and transport it. The carriage (10) for receiving molten metal to transport the ladle that receives molten metal from a furnace (C) comprises a carriage (20) for travelling on a route (L), guiding columns (30) that are placed on the carriage (20), a frame (40) that horizontally extends from the guiding columns and moves up and down above the carriage (20), a mechanism (50) for moving the ladle, which mechanism is placed on the frame (40) and horizontally moves the ladle, and the driver (60) for moving the frame up and down.

A substrate transfer system includes a substrate transfer part capable of transferring a substrate while holding the substrate, an elevating mechanism including a support axis extending in an upper-lower direction and being capable of moving the substrate transfer part along the support axis within a predetermined range, a first exhaust port located at a position selected from at least one of on the supporting axis and near the supporting axis above an upper limit of the predetermined range, a second exhaust port located at a position selected from at least one of on the supporting axis and near the supporting axis below a lower limit of the predetermined range, and an exhaust part connected such that exhaust is available through the first exhaust port and the second exhaust port.

A multi-window platen oven for simultaneously heating a plurality of blanks, for example aluminum blanks, before forming the heated blanks in a production line is provided. The oven includes a plurality of vertically aligned shelves disposed in an existing press assembly so that no additional floor space is required. The shelves are attachable to an upper press bed and one another. The upper press bed lifts the attached shelves to present an open window for receiving an unheated blank and/or removing a heated blank from the oven. The remaining windows remain closed and continue heating while the blanks are transferred to and from the oven. After closing the one open window, another window opens to receive another unheated blank and/or remove another heated blank. Thus, the multi-window platen oven continuously provides blanks which are ready for warm or hot forming.