ArcelorMittal Jinxi selects Danieli technology and equipment for tandem mill project

ArcelorMittal Jinxi New Materials (Changzhou) –a joint venture between ArcelorMittal and China Oriental Group– awarded Danieli the order for a six-stand cold-strip mill to be installed in Changzhou, Jiangsu Province, China.

The new, Danieli cold-rolling tandem mill will consist of six, 6-hi stands to process high-grade non-oriented silicon steel products for electric vehicle applications, part of the New Energy Magnetic Material (NEMM) project.

To meet stringent requirements for ultra-thin gauges, high precision, and specialized temperature control for silicon steel production, the mill will feature –among others– a proprietary small workroll diameter plus a large-stroke shifting system, ensuring mill rigidity while precisely controlling edge drop and strip shape, reducing roll change frequency.

A dynamic roll and strip oil-lubrication system will guarantee stable, warm rolling while minimizing strip breaks.

The Dan-Joint drive shaft system paired with an automatic thin oil-lubrication unit will lower crown gear wear and extend service life.

X-Dry precision strip cleaning will efficiently remove residual oil at high speeds, while a smart self-inspecting selective cooling system will facilitate rapid nozzle status checks, significantly reducing maintenance efforts.

The new tandem mill is planned to start operation in 24 months.

Soft magnetic materials for new energy applications are primarily used in motors, generators, and transformers, with NEV motors being a major application. These materials feature high magnetic induction, low core loss, excellent workability, high strength, and superior durability, effectively reducing energy loss and improving motor efficiency.