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一、控制轧制发展概述近十年来,控制轧制技术在世界各国的热轧中厚板和带钢生产中得到了日益广泛的应用。它不仅大幅度提高了低碳钢热轧板带的强度,而且显著改善了低温冲击韧性,降低了脆性转变温度FATT,满足了船舶、桥梁、锅炉、压力容器、建筑、汽车、石油和天燃气长输管线等各种焊接结构对于材料强度、韧性、成型性和可焊性不断提高的综合性能要求,减少了热处理工艺,降低了成本,节约了能源消耗,带来了显著的经济效果,因而有着广阔的发展前途。
First, the development of controlled rolling Over the past decade, controlled rolling technology in the world of hot-rolled plate and strip production has been increasingly widely used. It not only greatly improves the strength of low-carbon steel hot-rolled strip, but also significantly improves the low temperature impact toughness and reduces the brittle transition temperature FATT, to meet the needs of ships, bridges, boilers, pressure vessels, construction, automobiles, oil and gas Long-distance pipeline and other welded structures have the comprehensive performance requirements of continuously increasing the strength, toughness, formability and weldability, reducing the heat treatment process, reducing the cost, saving the energy consumption and bringing significant economic effects Has a broad development prospects.