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Luoyang Longding Alu Orders Process Automation Systems from Siemens
Jul. 1, 2010 Siemens Ltd. China has received an order from Luoyang Longding Alu Co., Ltd. to supply 26 Siroll ALU TCS process automation systems for its new aluminum rolling mill. The project also includes the first order for new Siroll Heavy Duty Shapemeter flatness measurement systems, which can measure cold aluminum strip with a thickness of up to 5.5 mm.
The scope of supply also includes other flatness measurement and zone cooling units. The project is scheduled to be completed in September 2011.
The Siemens systems will be installed on cold and foil rolling stands in the new rolling mill. The company claims that this is the first time that Heavy Duty Shapemeters will be used for the online flatness measurement of cold strip ranging between 0.05 and 5.5 mm in thickness. Integrated Automatic Trend Alignment (ATA) ensures precise positioning of the measuring roller under all operating conditions, even at slow rolling speeds.
The Siroll ALU TCS process automation system is based on the proven Simatic TDC platform, and will reportedly optimize the production flow and improve the quality of the end products. The system contains, for example, components for automatic roll gap control and roll eccentricity compensation to meet these targets.
Flatness is also measured by 22 Siroll Air Bearing Shapemeters, which can measure cold strip ranging in thickness from 0.005 to 4 mm. Siemens is supplying 26 Siroll ISV (Integrated Solenoid Valve) spraying systems for zone cooling and lubricating the rolling stands. The company will be responsible for installing and commissioning all the systems, as well as customer training.
The controlling interest in Luoyang Longding Alu is held by the Dingsheng Industry Group, based in Hangzhou, Zhejiang Province. This group of companies currently operates three locations with a total annual production of more than 150,000 tonnes of rolled aluminum products for use in, for example, the domestic goods, electronics, and packaging industries.
The new aluminum rolling mill in Luoyang, Henan Province, will increase the annual production capacity to around 300,000 tonnes.