Managing the Effects of Passline and Strip Shape on Metal Coatings

The use of automated coating control systems is commonplace in modern galvanizing lines. However, the increased need for higher-strength steels has required steel coil producers to adapt their processes and equipment to produce wider ranges of material properties and gauges. This shift has resulted in difficulties in the coating control process that producers have had to overcome – strip passline changes and shape effects. This paper presents the direction of technology developments that Hatch has undertaken to address these difficulties: a laser-based strip position measurement system and a control system to actively mitigate transverse curvature in the strip (crossbow).

Mr. Ivan Marincic | Hatch
 

Mr. Owen Pearcey | Hatch Pty Ltd.
 

Mr. Joel Tham | Hatch