TPT July 2018

T E CHNOLOG Y

Service intervention on aluminium hot-strip mill from Danieli SpA

when rolling hard material (5xxx or 8xxx series), and between head/tail when rolling soft material (1xxx or 3xxx series). The engineers of Danieli China Ser- vice Team conducted a complete diag- nosis of the mill’s mechanical equip- ment and automation, and the hydraulic system. The investigation determined that the problem was caused by a quick opening of the HAGC valves, and the HAGC servo drive was replaced. Nanshan was able to resume production without a long shutdown. Danieli Service provides steel and non-ferrous metals producers with plant upgrades, conditioning monitor- ing systems, maintenance, production assistance, training and original spares, worldwide.

producing light alloy strip up to 2,100mm. Two problems needed to be solved: the differences in strip thickness between the two sides of the strip

THE Danieli China Service Team has diagnosed and solved an HAGC problem at Nanshan Light Alloy. The intervention related to the performance of a 1+4 hot-strip mill

Danieli SpA – Italy Website: www.danieli.com

HAGC test stand for evaluating the dynamic characteristics of hydraulic cylinders

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JULY 2018