特厚板坯干式浇铸的工艺技术

为了解决某炼钢厂生产的特厚板坯表面横裂纹发生率高的缺陷问题，通过ABAQUS计算软件对该炼钢厂的铸机干式浇注工艺进行了工艺技术研究。建立了干式辊干式浇铸的有限元模型并进行了辊系的温度场计算分析，计算结果表明该辊系能满足干式浇铸工艺的要求。现场采用该计算方案制定了符合该铸机特性的半干法浇铸工艺，并进行了生产试验，试验结果表明采用半干法浇铸后的铸坯质量得到了明显改善。

Technology Research of Continuous Casting Using Revolver Cooling System for Thick Slab Caster

In order to resolve the high incident rate of cross crack in slab produced by steel plant thick slab caster, continuous casting process using the revolver cooling system for continuous caster was studied by ABAQUS software. The FEM model of revolver cooling system for continuous casting rollers is established to calculate the temperature field. The result clearly shows that the roller system can meet the continuous casting requirement by using revolver cooling system. Based on the above research, the technology of semi-revolver cooling system is developed for continuous casting which can meet the requirements of the properties of thick slab caster, and also the manufacturing production. From the result, it can be seen that the quality of slab is greatly improved after adopting this technology.