【摘要】 本文系统地研究了20Cr钢冷挤压毛坯的球化退火过程，选定了亚共析钢节能、省时与球化效果好的热处理工艺，并已用于工业生产，取得了显著的经济效益。更多还原

【Abstract】 In this paper the spheroidizing annealing process of the cold extrusion workblank of 20Cr steel have been systematically studied. The heat treatment procees for 20Cr steel which is characterized by saving energy, economizing time and effectively spheroidizing have been achieved. This process has been used successfully in industrial production and the economic benefit is remarkble.更多还原