Laboratory Experimental Studies Of The Wear Mechanism Of Wet-grinding Mill Liner

Grinding mills have been broadly used in metallurgy, minerals, electric power, chemical and building materials industries, in which liners especially for wet-grinding mills tend to be worn much more seriously due to the interaction of abrasive, impact of grinding media and corrosion of slurry. To explore the wear mechanism involved in milling processing, the low carbon high alloy steel was investigated under the laboratory conditions in this study.It was concluded that, among all the variable factors, abrasive, time and the interaction of them play the largest impact on the material's wear resistance, on the contrary, it was recommended to neglect the role of corrosion aroused by slurry. According to the research on the impact and impact abrasive wear, fatigue delamination was the main mass-loss mechanism involved in these two wear behaviors. Additionally, the sickness of laminates tends to increase along with the processing time. It was also revealed that, by enhancing the local impact loads, the abrasive accelerated the nucleation and expansion of subsurface cracks and caused much higher wear loss rate in exponential magnitude.The ANSYS? finite element code was chosen to perform the transient dynamic impact simulation conducted throughout these investigations. The simulation well validated the real experimental investigation and caculated the influence of impact load on material's wear behavior in quality.