Systems and methods of threading a metal substrate on a rolling mill include receiving a coil of the metal substrate. The method also includes uncoiling the metal substrate from the coil while the coil and guiding the metal substrate to a work stand of the rolling mill with a threading system.

Systems and methods of threading a metal substrate on a rolling mill include receiving a coil of the metal substrate. The method also includes uncoiling the metal substrate from the coil while the coil and guiding the metal substrate to a work stand of the rolling mill with a threading system.

Systems and methods of threading a metal substrate on a rolling mill include receiving a coil of the metal substrate. The method also includes uncoiling the metal substrate from the coil while the coil and guiding the metal substrate to a work stand of the rolling mill with a threading system.

Systems and methods of threading a metal substrate on a rolling mill include receiving a coil of the metal substrate. The method also includes uncoiling the metal substrate from the coil while the coil and guiding the metal substrate to a work stand of the rolling mill with a threading system.

A first recessing-and-projecting line is formed in a trailing end of a preceding first belt material and a second recessing-and-projecting line is formed in a leading end of a newly fed out second belt material, and the first recessing-and-projecting line and the second recessing-and-projecting line are fitted to each other, thereby joining the first belt material and the second belt material. Note that the first recessing-and-projecting line and the second recessing-and-projecting line pass through a holding section that holds an element in the first belt material or the second belt material.

A first recessing-and-projecting line is formed in a trailing end of a preceding first belt material and a second recessing-and-projecting line is formed in a leading end of a newly fed out second belt material, and the first recessing-and-projecting line and the second recessing-and-projecting line are fitted to each other, thereby joining the first belt material and the second belt material. Note that the first recessing-and-projecting line and the second recessing-and-projecting line pass through a holding section that holds an element in the first belt material or the second belt material.

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.

A coiled material transporting device is disposed between a coiled material supply device supplying a coiled material, and a press device pressing the coiled material supplied from the coiled material supply device. The coiled material supply device includes a support, a first driver, and a transporter. The support is extendable and retractable along a direction of a die disposed in the press device. The support is configured to support from below a terminal end of the coiled material supplied from the coiled material supply device. The first driver is configured to cause the support to extend and retract. The transporter is provided to the support and is configured to transport the terminal end of the coiled material toward the die disposed in the press device.

A coiled material transporting device is disposed between a coiled material supply device supplying a coiled material, and a press device pressing the coiled material supplied from the coiled material supply device. The coiled material supply device includes a support, a first driver, and a transporter. The support is extendable and retractable along a direction of a die disposed in the press device. The support is configured to support from below a terminal end of the coiled material supplied from the coiled material supply device. The first driver is configured to cause the support to extend and retract. The transporter is provided to the support and is configured to transport the terminal end of the coiled material toward the die disposed in the press device.

Systems and methods of threading a metal substrate on a rolling mill include receiving a coil of the metal substrate. The method also includes uncoiling the metal substrate from the coil while the coil and guiding the metal substrate to a work stand of the rolling mill with a threading system.