| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a hot dip metal coated steel strip capable of increasing the wiping power of wiping gas, efficiently controlling the hot dip metal coating deposition even at a low pressure, avoiding collision of wiping gas opposing on face and back sides of the steel strip with each other, and reducing occurrence of any splash. SOLUTION: In the method of manufacturing the hot dip metal coated steel strip, a plurality of nozzles with the gas ejection direction being inclined to each other are provided facing the surface of the steel strip which is continuously drawn up from a hot dip metal coating tank, and the synthesized jet of the gas ejected from the plurality of nozzles is sprayed on the surface of the steel strip drawn up from a hot dip metal bath to control the thickness of the coated metal. The collision position of the synthesized jet with the steel strip is changed by adjusting the pressure of the gas sprayed from at least one nozzle out of the plurality of nozzles. COPYRIGHT: (C)2007,JPO&INPIT
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