| 摘要 |
PURPOSE: To provide a high-pressure gas wiping nozzle which ejects gas free from a disturbance in dynamic pressure in the transverse direction of the gas wiping nozzle from a slit under a high pressure. CONSTITUTION: This high-pressure gas wiping nozzle for the hot dip coating line is constituted to introduce the gas flowing into a first pressure equalizing chamber 2 through flow regulating grooves 4, which are arranged zigzag in two upper and lower stages, and are formed to be in proximity to each other and to incline in a range of 0 deg.<θ<90 deg. from the axial direction of the slits, into a second pressure equalizing chamber 3 and to eject the gas from a slit 5 formed in front of the second pressure equalizing chamber with the excellent uniformity of the gas pressure.
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