Authors : Rustem Kozbagarov, Timur Chigambaev, Talgat Agimov, Zhastalap Abilkaiyr, Batyrkhan Kyrykbaev and Algazy Zhauyt
Abstract: These days, ensuring the high quality of thin products (0.6-2.0 mm) is the most promising direction for the development of hot-rolled strip production. Hot-rolled strips can be used in place of a more expensive cold-rolled strip. In the production of ultra-thin cold-rolled strips, the use of thin hot-rolled strips as a rolling stock allows to significantly reduce the cost of the latter (at least 20%). However, the replacement of cold-rolled strips with hot-rolled ones is possible only in the case when hot-rolled steel will completely satisfy a number of technological requirements, i.e. have a satisfactory microstructure and the required level of mechanical properties, etc. An effective tool for influencing the formation of the structure and properties of steel is targeted hot rolling sheets on a suitable mill in combination with controlled cooling. Therefore, the use of reserves to improve the quality of sheets by improving the design of the mill and the temperature-deformation modes of rolling becomes one of the most important tasks facing producers of rolled metal. It is known that hot deformation of austenite with controlled temperature-deformation mode and subsequent cooling of rolled products is one of the most effective ways to improve the properties of rolled products.
Rustem Kozbagarov, Timur Chigambaev, Talgat Agimov, Zhastalap Abilkaiyr, Batyrkhan Kyrykbaev and Algazy Zhauyt, 2019. Development of Technologies for Cooling Strips of Steel 60C2XA on a Retractable Roller Conveyor. Journal of Engineering and Applied Sciences, 14: 5840-5846.