进给速度对冷辗扩GCr15轴承套圈硬度的影响

苏勇, 刘灿, 张宏伟, 于兴福, 郝天赐

Effect of Deformation Rate on Microstructure and Hardness of Cold-rolled GCr15 Steel Bearing Ring

SU Yong, LIU Can, ZHANG Hongwei, YU Xingfu, HAO Tianci

表2 冷辗扩加工的进给速度

Table 2 Feed rate schemes for cold rolling processing

Schemes Speed and time in different cold rolling stages (mm/s × s) Ⅰ Ⅱ Ⅲ Ⅳ Ⅴ Ⅵ A 0.50 × 12.0 0.25 × 10.0 0.12 × 8.5 0.06 × 2.8 0.01 × 1.2 0 × 10.0 B 0.70 × 8.0 0.30 × 8.0 0.16 × 7.0 0.08 × 6.0 0.04 × 2.5 0 × 10.0 C 0.90 × 6.0 0.40 × 6.0 0.20 × 5.5 0.12 × 5.0 0.05 × 4.0 0 × 10.0