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一、引言工程中有不少机械设备的零部件在工作中因受到磨损而损坏。如风扇式磨煤机的冲击板,在运行过程中不断撞击着从料斗中落下来的煤块,使之粉碎;与此同时,以一定角度和速度撞击到冲击板上的煤块,也会不断地对冲击板的金属表面产生磨损。因此,探索磨损机理,研究防磨方法,研制耐磨材料,延长易磨损件的使用寿命,是人们关心的课题。在磨损损坏中又以磨料磨损为主要的破坏形式。在长期的研究和实践中人们已知道提高
I. INTRODUCTION There are many parts and components of machinery and equipment damaged in work due to wear and tear. Such as fan mill impact plate, in the course of the continuous impact from the hopper falling coal block, so that crushed; at the same time, at an angle and speed hit the impact of the coal block, will Constantly impact the metal surface of the plate wear and tear. Therefore, to explore the mechanism of wear and tear, research methods of wear-resistant, wear-resistant materials to develop and extend the service life of wear parts, is the subject of concern. In the wear and tear wear again as the main form of damage. People have known improvement in long-term research and practice