拉漏前结晶器摩擦力逐渐增加。
应用新型的稀土处理钢用保护渣没有发生拉漏事故,并提高了铸坯表面质量。
Break out accidents have never occurred and surface quality of slabs has been improved since introduction of this new type of mould flux into continuously casting the rare earth treated steel.
连铸坯与结晶器间摩擦力是反映铸坯表面质量、优化工艺参数和进行拉漏预报的有效参数。
The friction between billet and mold is an effective parameter reflecting billet surface quality, optimizing technologic parameters and predicting breaking out.
在拉速提高的条件下,必须优化结晶器内流场以适应稳定生产的需要,防止气孔、拉漏等铸坯缺陷的产生。
Fluid flow in the mould must be optimized in order to improve the internal and surface quality of the slabs while increasing the casting speed.
针对小方坯连铸高效化改造后拉漏率高的问题 ,分析了造成漏钢的原因 ,介绍了所采取的对策及取得的效果。
The reasons of continuous caster leaking are analyzed aiming to the problem of high leaking rate after reforming the small billet cast to improve its efficiency.
分析认为,济钢大板坯连铸机出现粘结漏钢的原因是保护渣的性能不良,其中液渣层厚度、渣耗量及玻璃相比例偏低,以及结晶器液面波动,拉速提升过快等。
Analysis consider that the reason of breakout by sticking is bad capability of the powder, such as lower depth of liquid powder, less consumption and low proportion of glass phase in the powder.
应用结晶器非正弦振动技术可以降低结晶器摩擦阻力,减少粘结性漏钢,同时大幅度降低高拉速时的结晶器振动频率。
The non-sinuous oscillation of the mold is used to reduce the mold friction force and stick type breakout, and to lower the oscillation frequency for high speed casting.
通过分析涟钢过程中的瞬间参数,找出了漏钢的主要原因,即中间包温度过高、拉速过大以及操作不当等。
By analyzing the instantaneous parameters of molten steel leakage during continuous casting at Lianyuan steel, main reasons to cause the leakage were found.
提出通过拉坯阻力的实测值与预测值的差值预报拉坯阻力异常和漏钢的新方法,模拟结果表明此法可行。
A new method of predicting breakout and abnormal mould friction by the difference between measured value and predicted value is put forward. The result shows that the way is feasible.
对弧不良、钢水温度高、拉速快是造成裂纹漏钢的主要原因;
The most reason of cracking breakout is badness of arc and high temperature of molten steel and high withdrawal speed.
结果表明纤维在排水性沥青混合料中起到了减少析漏,提高抗弯拉应变,降低疲劳应力敏感性等作用。
The result showed that the role of fiber in the PFC mixture was to prevent the drainage, improve the flexural strain and reduce the sensitivity of the fatigue.
测量了在不同拉应力作用条件下漏磁场分布的规律。
The distributions of leakage magnetic induction were measured under different stresses.
测量了在不同拉应力作用条件下漏磁场分布的规律。
The distributions of leakage magnetic induction were measured under different stresses.
应用推荐