通过挖掘设备潜力,采用奥氏体再结晶区直接轧制+轧后快速冷却工艺在某宽厚板生产线上成功试制了60~85 mm厚Q345系列C-Mn低成本厚板,Z向性能稳定达到Z35标准要求。试验结果表明,用该工艺生产低合金厚板可缩短2 min轧制时间,提高了机时产量,促进钢铁工业的可持续发展。 Through the excavation of equipment potential, the direct austenite recrystallization zone rolling + rapid cooling after rolling process successfully produced a 60-85 mm thick Q345 series C-Mn plate on a heavy plate production line with stable Z-direction performance Z35 standard requirements. The test results show that using this technology to produce low alloy plate can shorten the rolling time of 2 min, improve the machine-hour output and promote the sustainable development of the steel industry.