ON WEAR MODEL FOR PISTON RING AND STRENGTHENED CYLINDER WALL OF ENGINE
Ni-P electroless plating is applied to repairing engine cylinder is advanced. For practical operation conditions of engine cylinder, piston speed and lateral pressure to cylinder wall are determined as experimental factors, and abrasion value of cylinder is set as wear resistance target. According to load and speed on 1mm~8mm below top dead center of cylinder in expansion stroke, the ranges of experimental parameters are chosen. Based on the quadratic regression rotation combination method, wear resistance experiment of hardening material is designed. The wear mathematic models of Ni-P electroless plating is established, and threedimensional curved surfaces for load-speed-wearing value are drawn. The results show that the Ni-P electrolessl plating is fit for the operating condition of cylinder, and can increase relative wear resistance of cylinder by 5 times. By analysis of wear mechanisms of hardening material and wear resistance, the material is perfect for hardening engine cylinder wall.
Jian-min Sun Qing-mei Yang
School of Mechanical-electronic and Automobile Engineering, Beijing University of Civil Engineering College of Automation, Beijing Union University, Beijing 100101, China
国际会议
第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)
北京
英文
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）