Production process of GH4169 alloy hot-rolled bar

The invention discloses a preparation method of a recycled GH4169 alloy hot-rolled bar. The preparation method comprises the following steps that A, a cogging mill is used for conducting primary rolling cogging on a GH4169 alloy steel rolling blank with the diameter phi being 160 mm; B, secondary rolling cogging is conducted on the steel blank treated in the step A by using a cogging mill; c, solution annealing is conducted; d, surface polishing treatment is conducted after solid solution treatment; and E, cold drawing is carried out. The defects in the prior art can be overcome, and the strength performance of the material is improved. 本发明公开了一种再生利用GH4169合金热轧棒材的制备方法，包括以下步骤：A、使用开坯机将Φ160mm的GH4169合金轧钢坯料进行一次轧制开坯；B、使用开坯机对经过步骤A处理的钢坯进行二次轧制开坯；C、固溶退火；D、固溶后进行表面磨光处理；E、进行冷拔拔制。本发明能够改进现有技术的不足，提高了材料的强度性能。