公开(公告)号：EP4170057A1

公开(公告)日：2023-04-26

申请号：EP21825278.1

申请日：2021-04-21

申请人： JFE Steel Corporation

发明人： YAMASHIRO, Kenji ,  TAKAHASHI, Hideyuki ,  KOYAMA, Takumi ,  INOUE, Hidetoshi ,  NISHINAKA, Syuhei ,  FUJII, Toshiki ,  AISHIMA, Reona ,  YANAGISAWA, Yutaka ,  YOSHIKAWA, Masahiro

IPC分类号： C23C2/20 ,  C23C2/00 ,  C23C2/40 ,  C23C2/14 ,  C23C2/16 ,  C23C2/18

摘要： Provided are a gas wiping nozzle that is manufactured from parts divided along the slit length direction and can maintain a gap in the width direction of a slit to be constant over the length direction even in a high temperature atmosphere and a method for manufacturing a hot-dip metal strip. In a gas wiping nozzle (10), a first nozzle member (11) and a second nozzle member (12) are each divided along the length direction X of a slit (14) into a plurality of nozzle members (11A) to (11C), (12A) to (12C). The dimension of a divided face (20) of the first nozzle member (11) is 1.5T1 or more in a section of the first nozzle member (11) where T1 is the thickness of the first nozzle member (11) in the width direction Z of the slit (14), and the dimension of a divided face (20) of the second nozzle member (12) is 1.5T2 or more in a section of the second nozzle member (12) where T2 is the thickness of the second nozzle member (12) in the width direction Z of the slit (14).