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一、高速连续铸造下的带液相矫直问题--发生矫直内裂的机理所谓高速铸造就是指铸坯在经过矫直拐点时,还带有未完全凝固的液芯部分,而且这种液相穴还将延伸到水平部分的远处,即铸机的冶金长度远远大于四分之一圆弧长度(大于(πR/2) )。带液相的铸坯通过矫直拐点时,要受到矫直变形,产生拉伸应力,往往在固液两相
A high-speed continuous casting with liquid phase straightening problems - the occurrence of straightening fission mechanism The so-called high-speed casting refers to the straightening point after the straightening inflection point, but also with incompletely solidified liquid core part, and this The liquid-phase pockets will also extend further to the horizontal, ie the metallurgy length of the caster is much greater than the quarter-arc length (greater than (πR / 2)). With the liquid phase of the slab by straightening the inflection point, to be straightened, resulting in tensile stress, often in solid-liquid two-phase