Based on analysis of resource influencing seriously surface quality of plate via feeding roller of DA decoiler line, a new technology of home-made active roller has been put forth and applied successfully to production of car body stamping.

• 分析了da开卷线进口送进辊严重影响板料表面质量的根源及送进辊的工作原理和工况，提出了主动辊国产化的新工艺，并成功地在富康车身冲压件的生产中得到了应用。