摘要
针对4.8级螺母用ML08Al冷镦性能差、易产生冷镦开裂问题,本文通过对化学成分、表面质量、硬度、氧化铁皮厚度、晶粒度带状偏析、组织结构检测分析,对比分析确定提高冷镦性能的控制方向。
In view of the poor cold heading performance and easy cold heading cracking of ML08Al for grade 4.8 nuts,the control direction to improve the cold heading performance is determined through the detection and analysis of chemical composition,surface quality,hardness,iron oxide scale thickness,grain size,banded segregation and mi-crostructure。
作者
陶立志
郭鑫
Tao Lizhi;Guo Xin(Research and Development of Jianlong Beiman Special Steel Co.,Ltd.,Heilongjiang Qiqihaer 161041)
出处
《特钢技术》
CAS
2021年第3期52-55,共4页
Special Steel Technology
关键词
冷镦性能
冷镦开裂
化学成分
氧化铁皮厚度
硬度
组织结构
cold heading performance
cold heading cracking
chemical composition
oxide scale thickness
hardness
structure
