开沟刀耐磨损性实验研究

Experimental Study of Trenching Shovel Wear Tolerance

为了应对开沟机工作环境复杂情况,针对开沟刀耐磨性的要求,结合生产实际中出现的开沟刀因磨损导致使用寿命低等问题,研究了金属陶瓷涂层在开沟刀上应用的可行性。利用表面工程技术与农业机械生产相结合的研究方法,采用反应氮弧熔覆技术,在开沟刀工作表面熔覆一层高耐磨性的熔覆层。通过台架磨损实验的对比研究,得到了熔覆层耐磨性比常规淬火回火处理的65Mn钢有明显提高,能够增强刀具的使用寿命,提高经济效益,为今后陶瓷涂层的技术在开沟刀生产和修复中的应用提供一定的技术和理论基础。

For the complex conditions of the trenching shovel and good wear-resistance, combined with the actual produc- tion of the trenching shovel, to study the feasibility of nitrogen arc cladding the cermet coating cladding layer on the trenching shovel of the application. Through the methods of combining surface engineering and agricultural machinery pro- duction, use of the technology of the reaction of nitrogen arc cladding cermet coating, ditching the knife surface cladding layer of high wear resistance. After the wearable experiment, it indicated that the wear ability of this steel is better than that of 65Mn. To enhance the tool life, improve economic and efficiency for the production and repair of the future reac tion of the nitrogen arc cladding cermet coatin~ trenchin~ shovel the aoolication nrovides a theoretical foundation