公开(公告)号：US20180327914A1

公开(公告)日：2018-11-15

申请号：US16067371

申请日：2017-03-29

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Takao TAYA ,  Hiroyuki KATO ,  Takanori KIYOSUE ,  Yoshihiro YAMADA

IPC: C23G3/02 ,  C23G1/08

CPC classification number: C23G3/029 ,  B21B45/0278 ,  C23G1/08 ,  C23G3/00 ,  C23G3/023 ,  C23G3/026

Abstract: [Object] To provide a liquid removal device capable of removing liquid on a steel sheet without using wringer rolls and a drier.[Solution] A liquid removal device that removes liquid attached to a surface of a sheet-like member that moves relatively, the liquid removal device including: a slit nozzle that jets gas to the surface of the sheet-like member; and a gap measurement device that measures a gap between a jetting port of the slit nozzle and the sheet-like member. The slit nozzle is installed so as to jet gas from a downstream side toward an upstream side in a movement direction of the sheet-like member that moves relatively to the slit nozzle, and is configured in a manner that a jet angle θ, a back face inclination angle β, a back face length L of a nozzle back face, a gap h, a slit width d, and nozzle pressure Pn of the slit nozzle satisfy the following relational formulas. P n ≥ 2.0 × 10 10  ( h  /  d ) 0.6  ( 1 1 + exp  ( β + θ - 58 ) + 1 ) - 4  L - 7 , β + θ ≥ 60  ° , L ≥ 20   mm [ Math .  1 ]

公开(公告)号：US20170088381A1

公开(公告)日：2017-03-30

申请号：US15375680

申请日：2016-12-12

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Yasushi KURISU ,  Yoshihiro YAMADA ,  Futoshi NISHIMURA ,  Katsuya KOJIMA ,  Junya TAKAHASHI ,  Masaaki OMODAKA ,  Masafumi MATSUMOTO ,  Hiroyuki TANAKA

IPC: B65H23/032 ,  H01F7/20 ,  C23C2/24 ,  C23C2/00 ,  C23C2/40

CPC classification number: B65H23/032 ,  B65H23/0324 ,  B65H2301/44332 ,  B65H2553/22 ,  B65H2553/24 ,  B65H2555/42 ,  B65H2701/173 ,  C23C2/003 ,  C23C2/24 ,  C23C2/40 ,  H01F7/204

Abstract: A steel sheet shape control method includes, (A) setting a target correction shape of the steel sheet at a position of an electromagnet to a curved shape, (B) measuring a steel sheet shape when electromagnetic correction is performed, (C) calculating the steel sheet shape in a nozzle position based on the steel sheet shape, (D) repeating (B) and (C) by resetting the target correction shape to a curved shape having a smaller amount of warp, (E) when the amount of warp of the steel sheet shape at the position of the nozzle is less than the upper limit value, (F) calculating vibration of the steel sheet at the position of the nozzle, and (G) adjusting a control gain of the electromagnet until amplitude of vibration is less than a second upper limit value when the amplitude of the vibration is equal to or more than the second upper limit value.