本发明公开了一种宽厚板坯及改善心部偏析的生产方法，涉及冶金技术领域，其化学成分及质量百分比如下：C：0 .020%～0 .50%，Si：0 .10%～0 .35%，Mn ：0 .30%～1 .80%，P≤0 .025%，S≤0 .0150%，Al：0 .015%～0 .050%，Nb、Ti、Ni、Cr、Mo、Cu、V为可添加元素，余量为Fe和杂质。本发明以动力学、热力学理论为依据，采用科学的方法有效且快速地降低宽厚铸坯心部温度，通过热力学条件促使碳、锰、磷、硫等有害元素向温度偏高的1/4处聚集，从而改善铸坯心部质量，提高轧制的心部质量。

The invention discloses a wide and thick slab and a production method for improving the segregation of the core, which relates to the field of metallurgical technology, and its chemical composition and mass percentage are as follows: C: 0.020% ~ 0.50%, Si: 0.10% ~ 0.35%, Mn: 0.30% ~ 1.80%, P≤ 0.025%, S≤ 0.0150%, Al: 0.015% ~ 0.050%, Nb, Ti, Ni, Cr, Mo, Cu, V are the elements that can be added, and the allowance is Fe and impurity. Based on the theory of dynamics and thermodynamics, the invention adopts a scientific method to effectively and rapidly reduce the temperature of the core of the broad and thick casting billet, and promotes the accumulation of harmful elements such as carbon, manganese, phosphorus and sulfur to the quarter of the higher temperature through the thermodynamic conditions, so as to improve the quality of the core of the casting billet and the quality of the rolling core.