The Steckel mill,a long established solution for the economical production of relatively small volumes of hot rolled strip,has been rejuvenated in recent years by a range of new applications,boosted by the need of imp...The Steckel mill,a long established solution for the economical production of relatively small volumes of hot rolled strip,has been rejuvenated in recent years by a range of new applications,boosted by the need of improving the energetic efficiency of the rolling process.The traditional advantages of the Steckel mill in terms of flexibility and reduced capital and operational costs are now enhanced by technological developments that have significantly expanded its application range into the combined production of strip and plate and improved the product quality.The increased awareness of the necessity of a sustainable growth in the steel industry has stimulated the development of process solutions with an improved efficiency in the use of natural resources,lower carbon emissions and increased yield.Modern Steckel mills are an adequate response to the trend towards low energy strip and plate production,in particular in their plate-Steckel mill variant.Siemens VAI have played a key role in the innovation and transformation of the Steckel mill concept,with a number of recent installations,presented in this paper from the point of view of their contribution to the development of greener steel rolling technologies.展开更多
The demand for energy becomes a bottleneck in development of China.Economically delivering natural gas and oil through pipeline is an urgent problem to be solved.In the present work,X80 pipeline steel with high toughn...The demand for energy becomes a bottleneck in development of China.Economically delivering natural gas and oil through pipeline is an urgent problem to be solved.In the present work,X80 pipeline steel with high toughness and thickness 21.0 mm was produced through HTP(High Temperature Processing)by Steckel mill rolling.And the microstructure and mechanical properties of the X80 pipeline steel,which produced by different processing parameters such as reheating temperature of slabs,resume temperature,finishing temperature,accelerated cooling exit temperature and cooling rate,were analyzed.The results show that finishing temperature of 800-820℃ and cooling rate above 20℃/s are necessary to obtain fine and uniform acicular ferrite with high solute niobium in X80 pipeline steel.展开更多
文摘The Steckel mill,a long established solution for the economical production of relatively small volumes of hot rolled strip,has been rejuvenated in recent years by a range of new applications,boosted by the need of improving the energetic efficiency of the rolling process.The traditional advantages of the Steckel mill in terms of flexibility and reduced capital and operational costs are now enhanced by technological developments that have significantly expanded its application range into the combined production of strip and plate and improved the product quality.The increased awareness of the necessity of a sustainable growth in the steel industry has stimulated the development of process solutions with an improved efficiency in the use of natural resources,lower carbon emissions and increased yield.Modern Steckel mills are an adequate response to the trend towards low energy strip and plate production,in particular in their plate-Steckel mill variant.Siemens VAI have played a key role in the innovation and transformation of the Steckel mill concept,with a number of recent installations,presented in this paper from the point of view of their contribution to the development of greener steel rolling technologies.
文摘The demand for energy becomes a bottleneck in development of China.Economically delivering natural gas and oil through pipeline is an urgent problem to be solved.In the present work,X80 pipeline steel with high toughness and thickness 21.0 mm was produced through HTP(High Temperature Processing)by Steckel mill rolling.And the microstructure and mechanical properties of the X80 pipeline steel,which produced by different processing parameters such as reheating temperature of slabs,resume temperature,finishing temperature,accelerated cooling exit temperature and cooling rate,were analyzed.The results show that finishing temperature of 800-820℃ and cooling rate above 20℃/s are necessary to obtain fine and uniform acicular ferrite with high solute niobium in X80 pipeline steel.
