At present, most of the companies rolling high-strength steel bars use High rigidity rolling mill, which generally have relatively large rolling force energy parameters and rolling accuracy. Especially in recent years, the new bar and wire rod production lines, roughing and mid-rolling areas of High rigidity rolling mill (short stress line mill, CCR mill, etc.) gradually replace the traditional closed-plate mill, which is the inevitable result of the upgrade of bar and wire rod products, new technology needs and the technical progress of new rolling mills and other factors.
In rolling small-size rebar (coil), the technical progress of domestic high-speed wire rod equipment is obvious and has replaced most of the imported equipment. Domestic top delivery heavy-duty finishing rolling unit is becoming more and more perfect, the final rolling speed has exceeded the 100m/s mark, reaching the world’s advanced level, hourly output of up to 120t, the automation level of the rolling line is stable and reliable. In the steel rolling production line, high-performance flying shears have been widely used, basically replacing imported products. After years of efforts by our metallurgical engineers and technicians, has developed a full range of models, advanced functions of various types of flying shears series products.
Especially since the 21st century, for high-grade rebar production line developed by the low-temperature times the size of the flying shear, high-speed flying shear has reached the international advanced level and put into practical application. The auxiliary equipments of long products rolling line have been localized. We have developed various control cooling lines, various structural forms of cold beds, coil collection equipment and straight collection equipment. These devices are fully functional, advanced in structure, reliable in use and highly automated, meeting the fast-paced production needs of China’s long product rolling characterized by high productivity and high efficiency.
Post time: Oct-10-2022