At 13:48 on November 6, F4 threw steel and F1 bit steel! The double-steel finishing rolling process test of the Chongqing Steel Hot Coil Production Line of Zhongnan Steel was successful. The gap between F1 biting steel was only 7.04 seconds, and the rolling interval time achieved a new breakthrough, which can greatly improve the production line operation efficiency, fully release production capacity, and create conditions for substantial energy saving and consumption reduction.
The double-steel finishing rolling of the continuous rolling unit is almost non-stop steel feeding, which has strict requirements on equipment, operation, and process, and has always been regarded as the limit of the rolling rhythm of the hot-rolled coil production line. During the investigation of Chongqing Steel, the leaders of the group company put forward new requirements for the hot-rolled coil production line, focusing on improving the efficiency of the production line, further challenging the limit, and realizing the double-steel finishing rolling as soon as possible to reach the leading level of domestic hot rolling lines. Chongqing Steel attaches great importance to it, and has formed a professional joint team to clarify the task objectives of "double-steel rolling".
The professional and technical teams of Chongqing Steel's hot-rolled coil production line quickly took action and held a special promotion meeting. Starting from the three dimensions of rhythm control, online tracking, and unit timing logic, they sorted out dozens of key nodes and logical chain bottlenecks, including the conditions for steel feeding in the last pass of rough rolling, steel discharge rhythm, side guide plate control of finishing rolling, steel feeding and swinging conditions of finishing rolling, layer cooling model control, and coiling steel feeding. The production technicians immediately organized a comprehensive measurement of typical product specifications and selected the test specifications based on the production plan for the 6th.
Only by making the production line efficient and daring to surpass can we "survive". Chongqing Steel will continue to promote the research and development of double steel rolling, strive to achieve normalized rolling as soon as possible, give full play to the efficiency of each unit under the existing conditions, and maximize production capacity. At the same time, we will continue to strengthen our R&D capabilities, increase R&D efforts, create high-value-added products, and inject strong momentum into "surviving and getting better".