Upgraded PLTCM in China Produces Its First Coil

Upgraded PLTCM in China Produces Its First Coil

In September, Chinese steel producer Valin ArcelorMittal Automotive Steel (VAMA) produced the first coil at its upgraded pickling line and tandem cold mill (PLTCM) in Loudi, Hunan province, China. A joint venture between Valin Steel Group and ArcelorMittal, VAMA is a steel producer focused on automotive steel, producing 1.5 million tons.

Phase 2 Upgrades

Upgrading the 5-stand 6-high rolling mill, Primetals Technologies was awarded part of a Phase 2 upgrade project based on their experience supplying the PLTCM back in 2014. The Phase 2 project is meant to complement VAMA’s implementation of a new processing line and adjust to the increased production capacity. The PLTCM was upgraded with a  second entry passline, an additional mill stand, a pickling tank, new drives, automation hardware, an extension of the Level 2 automation system, and supervision of the mechanical and electrical implementation. In the end, the PLTCM can handle widths from 900 to 1,890 millimeters and incoming thicknesses from 1.8 to 6 millimeters, and output thicknesses from 0.35 to 2.5 millimeters

The Primetals Technologies team on the day in September 2022 when the first coil was produced at VAMA.

Overcoming Challenges

The first coil was a welcomed signifier of a successful collaboration. Throughout the project, the team faced several challenges, from a shortage of electrical components, for example, microchips and automation equipment, to Covid-19 restrictions. Maintaining the proposed schedule given these challenges was difficult and sometimes left an air of uncertainty. However, the first coil was produced on schedule through close collaboration and a solution-oriented approach.

The first coil produced at VAMA’s PLTCM in Loudi, Hunan province, China


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