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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。
In the self-developed electro-plasticity rolling mill, the 304 stainless steel strip is subjected to multiple cold rolling and electro-plastic rolling. The deformation resistance, hardness, tensile strength and elongation of the material under different rolling modes are compared. And other performance changes, and microscopic analysis of the system. The results show that the introduction of appropriate high-energy pulsed current during the rolling process can significantly reduce the material deformation resistance. After each pass, the strength of the sample after the electric rolling is lower than that of the cold rolled sample, the elongation is obviously improved and the deformation capacity is greatly improved. At the same time, electric rolling can reduce or cancel the annealing process in material processing to improve production efficiency. This is a very important engineering significance for finding a clean, energy-efficient and efficient production process.