一、前言近十年来,武钢生产大量低合金钢专用板,发展了低合金、微合金化系列产品,开辟出一条创低成本高质量钢材的新途径。为研究专用板的生产,多年来在控制轧制方面进行了不断的尝试和探索。对普通C-Mn低合金钢或微合金化钢的控轧,主要集中在控制板坯的加热温度、轧制时的形变量和形变温度以及终轧温度、轧后冷却速度。通过控制轧制得到细化铁索体晶粒,从而得到强韧性能均佳的钢材。围绕着16MnR、16MnQ、20g中厚板的 I. Introduction In the recent ten years, WISCO has produced a large number of special low-alloy steel plates and developed a series of low-alloy and micro-alloyed products to open up a new way of creating low-cost and high-quality steel. To study the production of special plates, over the years in the control of rolling has been a constant attempt and exploration. For ordinary C-Mn low-alloy steel or microalloyed steel control rolling, mainly in the control slab heating temperature, deformation and deformation temperature during rolling and finishing temperature, cooling rate after rolling. By controlling the rolling to obtain refined ferrite crystal grains, resulting in both good toughness steel performance. Around the 16MnR, 16MnQ, 20g plate