坯壳初期凝固变形直接影响连铸坯表面质量．采用液滴落下法研究了钢中碳（Ｃ）和其它合金元素含量对坯壳凝固自由变形的影响．结果表明：浇铸温度越高，钢试样铸片越接近球冠状原因是坯壳底面随着表面张力和元素含量的变化而发生了再弯曲和再熔化． Ｃ是坯壳初期凝固变形的主要影响元素， Ｓ， Ｍｎ； Ｐ和 Ｓｉ的影响相对小些 The initial solidification of the shell directly affects the surface quality of the slab. The influence of carbon (C) and other alloying elements in steel on the free-form deformation of solidified shell was studied by drop-dropping method. The results show that the higher the casting temperature, the closer the steel sample casts to the spherical crown because the bottom of the shell undergoes re-bending and remelting as the surface tension and the element content change. C is the main impact of the initial solidification deformation of the shell element, S, Mn; P and Si relatively small impact