Factory Production Line
The Journey of a Steel Sheet

Releases the raw steel coil.

Trims the head and tail of the coil.

The tail end of the previous coil is welded to the head of the next coil so the line never stops.

Initial surface contamination is removed.

A buffer between the stoppable input and the continuous process.

Electrolytic solution + electric current separate the oils.

Scrubber rollers in vertical and horizontal tanks.

Warm air prepares the surface for entry into the furnace.

Gradual increase in sheet temperature.

The sheet temperature remains fixed at the target point.

Complete equalization of the internal temperature of the steel.

Temperature drop before entry into the zinc bath.

Molten zinc pot at approximately 450°C.

Air knives on both surfaces precisely control the coating thickness.

Air blowing reduces the sheet temperature.

Adjustment of galvanizing spangle size.

Rapid stabilization of the coating structure.

The surface is completely dried.

Automatic and continuous measurement of total thickness.

Surface leveling and improvement of mechanical properties.

Removal of minor waves for a final uniform surface.

Inspection of zinc coating on both surfaces.

A thin chromate layer is applied to the sheet surface.

The chromate layer is dried and fixed.

A similar buffer to the entry, at the exit side.

The sheet edges are trimmed to the precise dimension.

Inspection tables with special lighting.

A preservative oil layer if needed.

The sheet is wound into the final coil and readied for dispatch.