Title:
熱延鋼板の冷却装置および冷却方法
Document Type and Number:
Japanese Patent JP7352080
Kind Code:
B2
Abstract:
To provide a hot rolled steel sheet cooling device which can be used between conveyance rolls on an undersurface of a hot rolled steel sheet after finish rolling in a hot rolling process, has a compact and simple structure, and can perform uniform cooling in a steel sheet width direction, and a cooling method.SOLUTION: A cooling device, which cools an undersurface of a hot rolled steel sheet 2 conveyed on a run-out table, comprises: at least one cooling water nozzle 21 which is provided between adjacent conveyance rolls 18, and injects cooling water to the undersurface of the hot rolled steel sheet 2; and a cooling water stream control mechanism 30 which controls stream of cooling water injected from the cooling water nozzle 21. The cooling water stream control mechanism 30 has a rotor 31 which extends in a width direction of the run-out table, and is rotatably provided with a rolling width direction as an axis; an opening 31a and a blocking part 31b which are provided on a peripheral surface of the rotor 31. The cooling water stream control mechanism 30 controls collision and non-collision of cooling water with the hot rolled steel sheet 2 by the cooling water nozzle 21 by rotational drive of the rotor 31.SELECTED DRAWING: Figure 2
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Inventors:
Yasuhiko Daimon
Yoshihiro Serizawa
Yoshihiro Serizawa
Application Number:
JP2019187331A
Publication Date:
September 28, 2023
Filing Date:
October 11, 2019
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B21B45/02
Domestic Patent References:
| JP56017115A | ||||
| JP59001414U | ||||
| JP59171808U | ||||
| JP2015160240A | ||||
| JP55054208A | ||||
| JP57204817U |
Attorney, Agent or Firm:
Tetsuo Kanemoto
Koji Hagiwara
Naoki Ogita
Takashi Saito
Takuya Mine
Koji Hagiwara
Naoki Ogita
Takashi Saito
Takuya Mine