parabolic mold taper(Employing an optimized parabolic mold taper can improve uniformity of shell growth around the mold perimeter. 利用最优化结晶器抛物线锥度可以改善沿结晶器周边坯壳生长的均匀性。)
loss of taper(① Causes for loss of taper were identified as: improper mold setup; erroneous online taper measurement; insufficient taper for steel grade being cast； excessively high endwall speed during width changes； excessive looseness of the endwall drive assembly. 锥度减小的原因确定如下：结晶器调整不正确；锥度在线测量有误；对于所浇注的钢种锥度偏小；调宽时侧面板速度过高；侧面板驱动装置组装过松。② To reduce thin shell breakouts attributed to loss of taper, a series of procedures were implemented in 1989 at No.1 Slab Caster to ensure that mold taper gauges were properly used to set up molds. 为了降低因锥度减小而导致的薄坯壳型漏钢，1989 年 1 号板坯连铸机采取了一系列措施以保证结晶器锥度仪能正确用于结晶器的调整。)
modifying taper little by little(法: We have studied the optimum narrow face taper of mold with a target to minimize the cracks of cast product by modifying the taper little by little for various casting conditions and steel grades. 我们已经对结晶器窄面最佳锥度进行了研究，其目标是在不同的连铸条件和浇铸不同钢种的情况下，通过锥度微调法将铸坯裂纹降至最低。)
