Abstract: Typical hollow forgings-electro-slag remelting (ESR)alloy steel roll sleeve with inner diameter 560～880 mm, outer diameter 670~1200 mm and length 1300～1780 mm is usually produced by ≥2 t ingots. Based on the ensuring product quality, as compared with traditional forging process, it is available to decrease by 2 procedures and once re- heating with using optimized process- direct forging upsetting. The forgings yield increased by 5%～15% to obviously de- crease production cost.

摘要： 典型的空心锻件-电渣合金钢辊套锭重≥2 t,内孔直径560～880 mm,外径670～1200 mm,长1300～1780 mm。在保证质量的基础上,采用改进的工艺-直接锻粗法后,与传统工艺相比,可减少2道工序和一次中间加热,锻件成材率提高5%～15%,显著降低生产成本。

关键词: 空心类锻件, 电渣重熔, 合金钢, , 锻造, , 成材率