Upgrade of ArcelorMittal Indiana Harbor #2 Galvanizing Line Making 2CGL Great Again

摘要

The #2CGL at the Indiana Harbor was built in 1964 by Youngstown Sheet and Tube. The line is a 72" wide horizontal furnace line capable of running heavy and light gauge products. The line has undergone several upgrades over the years to improve capacity, quality and reliability. These upgrades included: · 1988 - 25% productivity increase which included tower and furnace improvements · 1992 - Shape improvements which included in-line temper mill and tension leveler · 1994-97 - Several electrical upgrades to various parts of the line to improve the reliability. 2CGL is a line with demonstrated capacity of 585,000 tons per year depending on the product mix placed on the line. In the past the line produced a large amount of automotive product as well as non-automotive sheet. The amount of automotive production has decreased over the years as newer galvanizing lines have been commissioned.