摘要
微动疲劳和腐蚀疲劳是造成钢丝绳失效的主要原因。微动疲劳是微动磨损与疲劳的复合作用,腐蚀疲劳则是腐蚀与疲劳的复合作用,磨损与腐蚀的交替作用通常表现为彼此加速。应力集中促进疲劳裂纹的萌生与扩展。抑制微动磨损、防止腐蚀和应力集中的发生、减缓疲劳微裂纹的萌生与扩展是确定延长钢丝绳使用寿命技术措施的基本准则。对钢丝进行表面处理如耐磨磷化使制绳钢丝成为复合材料,使用复合材料制造钢丝绳芯将是金属制品行业的发展方向。
Fretting fatigue and corrosion fatique are main reason to cause wire rope failure. Fretting fatigue is the com- pound effect of fretting wear and fatigue, corrosion fatigue is the compound effect of corrosion and fatigue, alternate function of wear and corrosion usually presented as the acceleration of each other. Stress concentration promotes initiation and propa- gation of the fatigue crack, refrain fretting wear, prevent corrosion and stress concentration, slow down the initiation and propagation of fatigue micro-crack is the basic principle to determine the technical measures to extend service life of wire rope. Steel wire surface treatment such as wear-resistant phosphatizing makes the wire become composite materials, the use of composite materials for making wire rope core will be the development direction of metal products .
出处
《金属制品》
2014年第6期13-17,共5页
Metal Products
关键词
钢丝绳
使用寿命
微动疲劳
微动磨损
表面处理
耐磨磷化
steel wire rope
service life
fretting fatigue
fretting wear
surface treatment
wear-resistant phosphatizing
