铁水的炉前检验,一般采用三角试块,打断后检验尖角白口宽度,来估计鉄水的化学成份,主要是碳硅含量的高低。但如铁水成份相差不多时,反映在尖角部分白口宽度的变化就不大明显。而且使用三角试块需要较长时间,而铁水往往是要及时浇注的。另外一种方法是采用硬模浇注的圆形试棒。根据它在浇注后凝固时顶面收缩的大小来迅速判断铁水的 Hot metal stove test, the general use of triangular test block, cut off the test sharp white width, to estimate the chemical composition of water, mainly the level of carbon and silicon content. However, as the composition of molten iron is almost the same, reflected in the sharp part of the white width of the change is not obvious. And the use of triangular test block takes a long time, and hot metal is often timely pouring. Another method is to use a hard-cast round test stick. According to the size of the top surface shrinkage after pouring solidified quickly to determine the hot metal