Method for removing oxidation film in zinc nose

• Main Authors: XIE YIKANG, LIU WEI, LIU MAOLIN, QIAN XIN
• Format: Patent
• Language: Chinese; English
• Published: 22.01.2021
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The invention discloses a method for removing an oxide film in a zinc nose. The method comprises the following steps of step 1, introducing humidifying gas into the zinc nose in the rotating process of the zinc nose; step 2, reducing the set height of a zinc nose dam position; step 3, increasing a zinc nose rotating speed set value; step 4, observing the liquid level state of zinc liquid in the zinc nose, judging whether a liquid level oxidation film is completely pumped away by a zinc slag pump or not, completely immersing a zinc nose dam in the zinc liquid, if yes, executing the next step, and if not, returning to the step 2; and step 5, recovering the zinc nose dam height and the zinc nose rotating speed to parameters in the step 1. By adjusting the position of a flow guide dam in the zinc nose and the rotating speed of the zinc slag pump, the defects of the oxide film in the zinc nose can be effectively removed only through online self-adjustment, the defect loss caused by adheringband steel to the oxide