Failure Analysis of High Manganese Steel Cone for Cone Crusher
Author of the article:HUANG Yong;LONG Jun;ZHENG Zhibin;WANG Haiyan;CHEN Shengqian;WANG Xiangming
Author's Workplace：Guandong Institute of Materials and Processing, Guangdong Provincial Key Laboratory for Technology and Application of Metal Toughening, Guangzhou 510650, China;Guangzhou Research Institute of Non-ferrous Metals Xinfeng Wear-resistant Alloy Material Co., Ltd., Shaoguan 511100, China;Aviation Maintenance Engineering Department, Zhangjiajie Institute of Aeronautical Engineering, Zhangjiajie 427000, China
Key Words：wear cone impact wear failure analysis high manganese steel
Abstract：
The failure behavior of the high manganese steel cone of the cone crusher was studied in the current work.Spectrometer, optical microscope and scanning electron microscopy were used to analyze the composition and microstructure of high-manganese steel after service. Regions with the damages under different degrees of impact energies were also observed. Microhardness of work hardened layer and wear curve of the failure cone were measured and the failure mechanism of the wear cone was comprehensively analyzed. The results showed that the drilling and cutting from the hard grinding material which consists of granite is the main reason for the failure of the cone. The local microscopic porosity of the riser and the presence of local undissolved carbide at the grain boundary accelerated the macroscopic cracks of the steel, resulting in the failure of the cone.
