Tag Archives: Wire Rod Mill

SMS Group High-Speed Wire Rod Mills at Guangdong Guoxin

Chinese Guangdong Guoxin Industrial Co., Ltd. has awarded SMS group the Final Acceptance Certificate after successful commissioning of the two single-strand wire rod mills for its Jieyang works, Guangdong province.

Smooth commissioning and safe operation

The works is designed for an annual capacity of 1.4 million tons (700,000 tons per year per wire rod mill). The two single-strand high-speed mills roll wire rod in diameters from 5.5 to 25 millimeters and rebars in diameters between 6 and 14 millimeters. The originally planned rolling speed of up to 105 meters per second has been exceeded; wire rod sizes have already been rolled at speeds of 120 meters per second. The steel grades to be rolled comprise cold-heading, alloyed, spring and stainless steels as well as tire cord and welding wire.

SMS group supplied the high-speed area mechanical equipment starting from the four-stand pre-finishing mill, shear system in front of the finishing block, 6+4-stand finishing block arrangement, pinch roll, loop laying head and all related water boxes. Due to the well proven 6+4-stand arrangement, all final dimensions can be finish-rolled in a maximum of four passes and thus be rolled thermomechanically, i.e. at low temperatures and with close dimensional tolerances.

Besides the mechanical equipment, SMS group provided the electrical and automation system for the complete line (including motors, drives and sensors), and was responsible for the supervision services for erection and commissioning.

SMS group is a group of companies internationally active in plant construction and mechanical engineering for the steel and nonferrous metals industry. It has some 13,500 employees who generate worldwide sales of more than EUR 3 billion. The sole owner of the holding company SMS GmbH is the Familie Weiss Foundation.

Source: SMS Group

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Modernization and systems competence for wire rod mills

ArcelorMittal Kryviy Rih continues to rely on SMS group and orders third coil compactor in close succession

ArcelorMittal Kryviy Rih, Ukraine, has placed an order with SMS group for the supply of a further horizontal coil compactor for its two-strand wire rod mill.

After successful commissioning of a new coil compactor in 2013 and a second one in 2014, ArcelorMittal has now placed an order with SMS group for the supply of a third coil compactor of type HP 4700 – PWT2. In addition to the mechanical equipment, the scope of supply includes the electrical equipment, machine automation and the complete hydraulic systems. SMS will integrate the new compactor into the existing plant environment and optimize all process interfaces. One of the technological benefits provided by the new compactor is that it will turn the coils automatically. This will make it possible to produce coils with eight straps positioned at equal distances from one another by four strapping units. This ensures safe coil transport even over long distances. This strapping method is also suitable for higher-strength grades. Delivery of the third coil compactor is scheduled for the end of 2015.

Source: SMS Group

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New format for continuous casting line delivers high-quality forgings for the automotive industry

ArcelorMittal has invested around US$267m in the past four years in its site in Duisburg, Germany, of which US$180m was spent on a state-of-the-art wire rod mill. The new wire rod mill can process high-strength and ultra-high-strength steels, using the latest technologies to enable thermo-mechanical rolling processes. A new factory laboratory has also been installed alongside the rod mill, to assure the quality of the products.

ArcelorMittal continues to invest in the Ruhrort site as well. The changeover to a symmetrical format for continuous casting line two offers customers in the automotive supply sector high-quality steel ingots for producing forgings. For example, these include gearbox parts, which create less vibration in the engine and therefore reduce noise emissions.

“We are investing US$8.6m in the format change in order to adapt the plant to future requirements and to increase our competitiveness. After construction of the new wire rod mill, this is the next step towards securing the future of jobs and steel production in Duisburg,” commented Thorsten Brand, CEO at ArcelorMittal Duisburg.

Higher quality and more environmentally friendly

The planned investments will change the mould format of continuous casting line two from the current 265×385 mm (rectangular) to 320×320 mm (square). At the same time, this will improve the rolling tolerance, which will enhance the quality of the product.

The new format will also extend ArcelorMittal’s product range and increase the flexibility of customers who process the steel to make forged parts such as gearboxes, crankshafts, gear wheels or axles, predominantly for use in commercial vehicles.

The investment will deliver forgings made from semi-products at ArcelorMittal Duisburg which will meet the highest requirements of the strict European guidelines on noise emissions for commercial vehicles.

Preparations for the investment project have already started and the plant refit will take place in mid-2015.

ArcelorMittal’s Duisburg site supplies semi-products for forging, as well as high-strength and ultra-high-strength wire rods for the automotive industry and renewable energy applications (for example offshore wind farms), for fastening elements and machine building.

Source: ArcelorMittal

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