How to fix air knife coating weight deviation on a Tenova LOI galvanizing line
Coating weight deviation from the air knife is usually a gap or pressure imbalance between the two knives. Verify pressure symmetry and clean the knife lips before adjusting the setpoint.
~30 min6 steps
How to respond to a furnace atmosphere upset on a Tenova LOI galvanizing line
Oxygen ingress into the galvanizing furnace oxidizes the strip surface and causes coating adhesion failures. Find and seal the oxygen ingress point and restore the protective HNX gas ratio before resuming production.
~60 min7 steps
How to manage zinc pot dross buildup on a Tenova LOI continuous galvanizing line
Dross in the zinc pot causes coating defects. Control pot temperature precisely within the specified range and schedule dross skimming at the correct interval to keep dross below the coating quality threshold.
~60 min6 steps