Wuhan SiWeiZhongcheng Technology Co.. Ltd
Industrial Synergy – From “Black, Bulky, Crude” to “High-Precision, High-Tech”: Smart Rolling Re-anchors Manufacturing
Release time：2022-01-10
Inside the 2150 hot-strip mill of Ansteel, a glowing slab races along the rollers while hardly a worker is in sight. A choreography of automated equipment finishes the job in minutes: a 30-ton slab is rolled into a 1.2 mm-thick high-strength coil whose thickness tolerance is measured in micrometres. It is a snapshot of China’s march toward “high-precision, high-tech” rolling.
“Rolling used to be ‘dumb, big, black and crude’, completely reliant on veteran operators’ experience. Not any more,” says the line manager, pointing to the control-room wall screen. “A full-stream intelligent system monitors and dynamically optimises more than 1,000 parameters—rolling force, temperature, speed—delivering micron-level dimensional accuracy and rock-stable mechanical properties.”
Rolling, the last critical step that turns a slab into usable steel, determines the final quality and value of the product. As downstream sectors—automotive, home appliances, high-end equipment—keep raising the bar, rolling technology is iterating fast. Take non-oriented electrical steel for EV motors: to hit ultra-low core loss and high magnetic induction it must go through 20-odd precision rolling and annealing passes.
This “rolling-pulls-smelting”mechanism is forcing upstream steelmaking and even ironmaking to advance. Only purer, more compositionally uniform molten steel can satisfy the demands of premium rolled products. The resulting whole-chain upgrade weaves the traditional “steel” theme deep into the fabric of China’s strategic emerging industries, making it an indispensable cornerstone of “Smart Made in China”. A crop of companies focused on special steels and deep processing, each with its own “secret sauce” in niche rolling segments, have become sought-after “themes” on the capital market.
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Add: No. 16 Jinyang 1st Road, Intelligent Manufacturing Industrial Park, Changjiang New District, Wuhan City, Hubei Province