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| Technology innovation and development direction of iron and steel industry |
| WANG Guo-dong |
| State Key Laboratory of Rolling and Automation， Northeastern University， Shenyang 110819， Liaoning， China |
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Abstract Nowadays， it is imperative to drive creatively transition， adjust structure and realize green manufacture for the iron and steel industry. The state of the art and some critical generic technology and product in steel industry are discussed to illustrate the innovation in technology and its development direction. Main contents are summarized as follows： pre-enrichment for complex and hard-concentrated iron ores-suspension calcination-magnetic separation， low carbon ironmaking， high recovery from secondary resources during steelmaking， integrated control of total process for advanced steel production， compact process， equipment and product for the improved endless hot strip rolling， short flow process， equipment and product for strip rolling， free acid pickling and coating to produce hot rolled plate， new generation of ladle injection metallurgy， technology and devices for high-quality continuous casting slab， structure control of hot rolled steel plate， advanced heat treatment for limiting size plate， endless rolled thin slab and free acid pickling and coating technology for the production of hot rolled AHSS， high precision cold-rolled sheet shape control and equipment technology， developed continuous annealing and coating technology， application of vacuum to produce slab and to roll cladding heavy steel plate， intelligent manufacturing system to guide the mass customization， et al. The above developments aim to realize green production in steel industry， and accelerate the industrialization process of China.
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Received: 07 July 2015
Published: 08 September 2015
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2015, Vol. 50 
