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| 0.35Mt/a Continuous Hot-Dip Galvanizing Line (GI/GL) for the Cold Rolled Steel Strip in Tonggang |
| ZHANG Qi-fu,ZHOU Jun-qi,YU Gang-qiang,LIU Can-lou |
| New Metallurgy High-Tech Co., Ltd., CISRI, Beijing 100081, China |
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Abstract The main technical parameters, process flow, main designed features and results of hot run of 0.35Mt/a CGL(GI/GL) for the cold rolled steel strip in Tonggang, which was designed and technically contracted by NMT of CISRI, was introduced. The complete sets of advanced equipments designed and developed on NMT’s own initiative, such as the new electrolytic cleaning section and magnetic filters， the big vertical all-radiant tube type annealing furnace and pulse combustion control system， the vertical roll coaters for chromate-free passivation and anti-finger print， the drying system integrated infrared (IR) heating with hot air cycling， the line automation control system etc. have been successfully applied. The hot commissioning work of the line was completed successfully on its first run in July, 2010. The 12000 tons of qualified and spangle-free galvanized steel coils have been trial-produced.
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Received: 12 October 2010
Published: 09 October 2011
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2011, Vol. 46 
