An electrode rolling apparatus according to an embodiment of the present disclosure includes a sensing unit positioned above an electrode for a secondary battery being transferred along a lengthwise direction to measure a distance to the electrode for each location along a widthwise direction of the electrode, a control unit which identifies a location of a non-coated portion formed on the electrode using information associated with the distance between the sensing unit and the electrode measured through the sensing unit, and outputs a control signal to heat a region in which the identified non-coated portion is formed, a heating unit positioned above the electrode to selectively heat only the region in which the non-coated portion is formed according to the control signal of the control unit, and a rolling unit which rolls the electrode having the selectively heated region in which the non-coated portion is formed.

The present invention uniformly cools a roll body and/or an induction heating mechanism by gas without complicating the configuration around the roll body. An induction heated roll apparatus includes a roll body having a hollow part, an induction heating mechanism disposed in the hollow part to subject the roll body to induction heating, and a cooling mechanism to cool the roll body and/or the induction heating mechanism by generating a gas flow in a clearance between the roll body and the induction heating mechanism. The cooling mechanism includes a suction port disposed on one axial end side of the roll body that communicates with the clearance, an exhaust port disposed on an opposite axial end side of the roll body that communicates with the clearance, and a suction mechanism coupled to the exhaust port that sucks the gas in the clearance from the exhaust port.

An electrode rolling apparatus according to an embodiment of the present disclosure includes a sensing unit positioned above an electrode for a secondary battery being transferred along a lengthwise direction to measure a distance to the electrode for each location along a widthwise direction of the electrode, a control unit which identifies a location of a non-coated portion formed on the electrode using information associated with the distance between the sensing unit and the electrode measured through the sensing unit, and outputs a control signal to heat a region in which the identified non-coated portion is formed, a heating unit positioned above the electrode to selectively heat only the region in which the non-coated portion is formed according to the control signal of the control unit, and a rolling unit which rolls the electrode having the selectively heated region in which the non-coated portion is formed.

A hot-forming apparatus may be used to produce a press-hardened shaped component from a blank. The hot-forming apparatus may include a furnace for heating the blank and a pressing device for forming and cooling the blank heated in the furnace. The hot-forming apparatus also includes, upstream of the furnace, a preheating roll truing device with a temperature-controllable roller for straightening and preheating the blank. A corresponding method may be used to produce the press-hardened shaped component from the blank.

There are provided a shape-correcting and rolling method and a shape-correcting device for effectively correcting the shape of high-strength steel. The shape-correcting and rolling method includes: transferring a hot-rolled coil to a pay-off reel after cooling the hot-rolled coil or directly through a hot rolling to skin pass mill direct transfer process; unwinding the coil from the pay-off reel; correcting a shape of a strip unwound from the coil by using a heat pipe roller; and rewinding the strip as a coil.

The present invention uniformly cools a roll body and/or an induction heating mechanism by gas without complicating the configuration around the roll body. An induction heated roll apparatus includes a roll body having a hollow part, an induction heating mechanism disposed in the hollow part to subject the roll body to induction heating, and a cooling mechanism to cool the roll body and/or the induction heating mechanism by generating a gas flow in a clearance between the roll body and the induction heating mechanism. The cooling mechanism includes a suction port disposed on one axial end side of the roll body that communicates with the clearance, an exhaust port disposed on an opposite axial end side of the roll body that communicates with the clearance, and a suction mechanism coupled to the exhaust port that sucks the gas in the clearance from the exhaust port.

The invention relates to a heating device for heating a roller, wherein the heating device has a heating element which is configured to be inserted into a bore of the roller and to provide, preferably to provide electrically, heating power and/or heat for heating the roller and/or a roller body of the roller, and wherein the heating device has a clamping set which is arranged on a surface of the heating element and which is configured to contact an inner surface of the bore when the heating device is inserted into the bore of the roller and to transfer heat from the heating element conductively to the roller and/or the roller body. The invention furthermore relates to a roller. The invention furthermore relates to a calender or an embossing cassette.

The invention relates to a roller for a, comprising at least one heating device for heating the lateral surface of the roller, wherein the heating device comprises at least one channel arranged within the roller, wherein at least one electrical heating element is arranged within the channel, and at least one, preferably at least partially fluid and/or pourable, heat conducting element is arranged in at least one intermediate space between an outer surface of the heating element and an inner wall of the channel; a rolling mill, embossing unit, and/or printing unit, in particular for producing elements of an electrical storage device, and a method for converting a heating device of a roller.