Study on Improving Fatigue Life of Coupler Knuckle
Author of the article:YANG Shouyan;HAN Bao;WANG Huming;ZHANG Aiyuan;WANG Rui
Author's Workplace：Baotou Vehicle Supervision and Manufacture Project Department of China Railway Hohhot Bureau Group Co.,Ltd.,Baotou014030,China;Inner Mongolia First Machinery Group Co.,Ltd.,Baotou014030,China
Key Words：casting hook tongues hook tongues technology mechanical properties fatigue property
Abstract：
The fatigue properties of coupler hook tongue were studied by analyzing and comparing performance and microstructure of E-grade coupler hook tongues which produced by different processes.The effects of composition and heat treatment on the fatigue performance of the hook tongues were pointed out,which provided a research direction for improving the comprehensive mechanical properties of the hook tongue.
