OREANDA-NEWS. May 22, 2014. Along with the strip passing successfully through the continuous pickling line and the 5-stand 6-h tandem cold rolling mill, the internationally advanced silicon steel pickling line and tandem cold rolling mill went into trial production in TISCO, which marked that TISCO’s silicon steel tandem cold rolling mill technical transformation project went into trial production.
 
The production process of silicon steel is complex and with high technical content, which is known as the “art and craft” in the steel industry and is an important symbol of the steel industry development level in a country. TISCO produced the first heat and the first sheet of silicon steel in China. TISCO has successfully developed series of high grade and high magnetic induction non-grain-oriented silicon steel products since 2005. The domestic market share of the products ranked first for years, the product quality and service enjoy great popularity. TISCO is one of the few silicon steel producers in China that mastered the core production technologies
 
In order to meet the requirements of the market and speed up the serialization and characterization of the silicon steel products, the construction of the silicon steel tandem cold rolling mill technical transformation project started in Oct. 27, 2012. The project is a priority one during TISCO product structure adjustment, and one of the key projects in the Twelfth Five-year Plan of Shanxi Province. The design capacity of the project is 1 million tons of cold rolled silicon steel strip. The project mainly consists of 1 pickling line and tandem cold rolling mill line, 4 annealing and coating lines, 4 cutting lines and 2 packaging lines. The Shanxi Provincial Party Committee and the Shanxi Provincial Government paid high attention to the construction of the project. The Secretary of the Shanxi Provincial Party Committee, Yuan Chunqing, and the Governor of Provincial Government, Li Xiaopeng, made on-site investigations and guidance many times and made important instructions. All the project builders involved worked day and night and overcame a lot of difficulties. The departments of TISCO cooperated closely, supported mutually and ensured the safe, quality and efficient construction of the project.
 
The silicon steel tandem cold rolling mill line adopted the internationally advanced process technology and a lot of new breakthroughs and innovations, solved the technical problems that limited the production of the silicon steel. The process technology of the production line is stable, the product quality and yield high. The production line has the features of being large-scale, continuous, compact and green, which injects a new impetus to the development of the cold rolled silicon steel in China.
 
In addition to the successful operation of the pickling line and the tandem cold rolling line, the annealing and coating lines, the cutting lines and the packaging lines also went into trial production. After the completion of the project, the annual output of the cold rolled silicon steel strip will reach 1.4 million tons. Among it, the annual output of high grade and high magnetic induction non-grain-oriented silicon steel products will reach 0.36 million tons, which further promotes the optimization and upgrading of the product structure and improves the market competitiveness of TISCO. At the same time, we can supply the needed silicon steel materials for the key fields and projects of the national economy and makes new contributions for the construction of steel power.