Device and method for manufacturing hot-rolled sheet steel and device and method for sheet thickness pressing used for the device and method

Device and method for manufacturing hot-rolled sheet steel and device and method for sheet thickness pressing used for the device and method

1. Technical Field of the Invention According to an apparatus and a method for manufacturing a hot-rolled steel plate, a roughing process for reducing a thickness of a continuously cast slab is performed to obtain a sheet bar, and a finishing rolling process for rolling the sheet bar is effected to...

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Hauptverfasser: Nishii, Takashi, Mikami, Masao, Ishii, Hajime, Ide, Kenichi, Iwanami, Toshio, Osada, Shirou, Murata, Satoshi, Masuda, Sadakazu
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Sprache:eng
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creator Nishii, Takashi
Mikami, Masao
Ishii, Hajime
Ide, Kenichi
Iwanami, Toshio
Osada, Shirou
Murata, Satoshi
Masuda, Sadakazu
description 1. Technical Field of the Invention According to an apparatus and a method for manufacturing a hot-rolled steel plate, a roughing process for reducing a thickness of a continuously cast slab is performed to obtain a sheet bar, and a finishing rolling process for rolling the sheet bar is effected to produce a hot-rolled steel plate having a predetermined plate thickness. After cooling down, the hot-rolled steel plate is then wound. A pair of dies each of which has a tapered portion on an input side and a parallel portion on an output side are used in at least part of the roughing process. Further, before performing plate thickness pressing to a material in a plate thickness direction by using the dies , at least one of a front end and a rear end of the material is pressed in a widthwise direction to be pre-formed.
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Technical Field of the Invention According to an apparatus and a method for manufacturing a hot-rolled steel plate, a roughing process for reducing a thickness of a continuously cast slab is performed to obtain a sheet bar, and a finishing rolling process for rolling the sheet bar is effected to produce a hot-rolled steel plate having a predetermined plate thickness. After cooling down, the hot-rolled steel plate is then wound. A pair of dies each of which has a tapered portion on an input side and a parallel portion on an output side are used in at least part of the roughing process. Further, before performing plate thickness pressing to a material in a plate thickness direction by using the dies , at least one of a front end and a rear end of the material is pressed in a widthwise direction to be pre-formed.</abstract><oa>free_for_read</oa></addata></record>
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title Device and method for manufacturing hot-rolled sheet steel and device and method for sheet thickness pressing used for the device and method
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