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Shougang Jingtang Orders Third Continuous Annealing Line from SMS Siemag

04/15/2011 - Shougang Jingtang has ordered from SMS Siemag a continuous annealing line that will produce tinplate, which will then be electroplated and used as packaging material. The line is scheduled to go into operation in mid-2013.

Shougang Jingtang United Iron & Steel, China, has placed an order with SMS Siemag for the supply of a continuous annealing line that will produce tinplate, which will then be electroplated and used as packaging material. The line is scheduled to go into operation in mid-2013.
 
The line reportedly can process strips as thin as 0.12 mm under stringent quality demands. The process runs continuously at 750 m/min, but in the entry and exit sections it can reach 1000 and 1100 m/min, respectively. Another possibility is rolling strips at a degree of reduction of up to 42%.
 
The supply scope includes a two-stand inline reduction and skin-pass mill (DCR, Double Cold Reduction), which is able to attain grades of DR10, as well as a two-stand offline DCR for the semi-continuous production of tinplate from a batch annealing furnace. The offline DCR also serves as a skin-pass mill for standard steel grades from a pickling line/tandem cold mill.
 
Essential components of the annealing line are two pay-off reels, a roller-seam welding machine, creep looper, cleaning section, vertical entry accumulator, annealing furnace, DCR mill, inspection accumulator, inspection stand, DUMA oiler, flying shear, and two tension reels.
 
The line is designed for strips in the thickness range between 0.12 and 0.55 mm in widths of 700 to 1280 mm. The materials T2.5, T3, T4, and T5 as well as DR7 to DR10 are produced.
 
This is the third annealing line being erected by SMS Siemag in the works on Caofeidian Island, an artificially constructed island off the coast of the Chinese province of Hebei. The other two lines successfully went into operation in 2009 and 2010.
 
Shougang Jingtang is a joint venture between Shougang Iron & Steel and Tangshan Iron & Steel.
 
SMS Siemag AG is a company of the SMS group, which is, under SMS Holding GmbH, a group of companies internationally active in plant construction and mechanical engineering for the steel and nonferrous metals industry. It comprises the two Business Areas SMS Siemag and SMS Meer. In 2010, some 9000 employees worldwide generated a turnover of EUR 3.1 billion.