随着科研、试制、生产的需要,近年来,我所在钢锭化学分析中采用了光谱分析。此法的速度快,成本低,但它对试样要求也严格,要求在φ30～35m/m、长70m/m的试样的中间无缩孔和疏松等缺陷。以前是用耐火材料取样管,由于这些取样管产地和材质不一,因此在取样的过程中,经常有钢水在耐火材料取样管中沸腾,或者由 With the scientific research, trial production, production needs, in recent years, I used ingot chemical analysis using spectral analysis. This method is fast and low cost, but it also has strict requirements on the sample. It requires no defects such as shrinkage and porosity in the middle of the sample with φ30 ~ 35m / m and length of 70m / m. In the past, refractory material sampling pipes were used. Since the origin and material of these sampling pipes are different, during the sampling process, the molten steel often boils in the refractory sampling pipe or