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针对代表性钢种45钢进行动态轻压下冶金效果试验,根据连铸机实际生产情况,设定3种拉速,分别实施3个不同压下量进行试验,对压下坯样和对比样做热酸低倍、偏析等对比分析,试验统计结果表明:目前的动态轻压下与动态二冷工艺对45钢是适用的。拉速0.83m/min,压下量4.5mm为当前断面条件下中碳钢实施轻压下的最佳参数。
Aiming at the metallurgical effect test of representative steel 45 steel under dynamic soft reduction, according to the actual production of continuous casting machine, three kinds of casting speed were set up and three different reduction rates were carried out respectively. Make hot acid low magnification, segregation and other comparative analysis, the experimental statistical results show that: the current dynamic soft reduction and dynamic cooling technology is suitable for 45 steel. Pulling speed 0.83m / min, the reduction of 4.5mm under the current conditions of the mild section under moderate pressure to implement the optimal parameters.