304不锈钢带材电致塑性轧制

 在自行研制的电致塑性轧机上，对304不锈钢带材进行多道次的冷轧和电致塑性轧制，对比研究不同轧制方式下材料的变形抗力、硬度、抗拉强度及伸长率等性能变化，并对微观组织进行系统分析。结果表明，轧制过程中引入适当的高能脉冲电流，能显著降低材料的变形抗力。各道次电轧后的试样强度低于冷轧试样，伸长率则显著提高，变形能力大大改善。同时，电轧可减少或取消材料加工中的退火工序，提升生产效率。这对寻找一条清洁环保、节能高效的生产工艺道路有十分重要的工程意义。

Electroplastic Rolling of 304 Stainless Steel Strip

The 304 stainless steel strips had experienced multi-pass cold rolling and electroplastic rolling (EPR) on the self-designed electroplastic rolling machine. Properties evolution such as deformation resistance, hardness, tensile strength, and elongation under different rolling ways was studied, and the microstructure was systematically analyzed. The results indicated that the deformation resistance could be remarkably reduced by using high energy pulse current during the rolling process. The strength of strip after each pass electroplastic rolling was lower than that of cold rolled strip, but its elongation was significantly improved, making the deformation ability of material greatly improved. Meanwhile, electroplastic rolling could reduce or cancel the annealing process during the material processing and improve the production efficiency, which had an important engineering significance for finding a clean, environment-friendly, energy saving and efficient production technology.