CAJ | 학술논문

采用控轧控冷工艺生产的低合金高强度钢Q345E达到了用户提出的高屈服强度和抗拉强度的综合力学性能要求。严格控制钢水纯净度，降低终轧温度，采用冷床风机强制冷却工艺能有效提高钢材的强度和低温冲击韧性。
채용공알공랭공예생산적저합금고강도강Q345E체도료용호제출적고굴복강도화항랍강도적종합역학성능요구。엄격공제강수순정도，강저종알온도，채용랭상풍궤강제냉각공예능유효제고강재적강도화저온충격인성。
By adopting the process of TMCP, low alloy and high strength steel Q345E was produced, which could meet the comprehensive mechanical properties of high yield strength and high tensile strength and high ten-sion required by the customer. In this process, the purity of molten steel was strictly controlled, the rolling temper-ature for the last pass was reduced, and forced cooling by cold bed blower fan was performed, which could effi-ciently raise the strength and low temperature toughness of the steel product.