钎涂增材在农机触土部件上的应用及发展趋势

Application and development trend of braze coating technology in soil-engaging components of agricultural machinery

农机触土部件磨损失效快一直是亟待解决的行业难题,钎涂增材是增材制造的新方向、新突破,采用异质钎涂技术对触土部件进行增材优化,使其耐磨性大幅提高,对于农业机械提高工作能效、助力绿色化转型具有重要意义。简述堆焊、热喷涂、喷焊及熔覆等异质增材技术制备农机触土部件的应用现状及局限性,重点论述钎涂技术在增材耐磨触土部件上的应用优势,并探讨钎涂技术制备农机触土部件存在的问题及发展方向。

Serious wear failure of agricultural machinery soil-engaging components has always been an industry problem to be solved. Braze coating technology,as a new direction in AM (Additive Manufacturing),has brought new breakthrough in recent years. Heterogeneous brazing technology is used to optimize the materials of soil contacting parts to greatly improve their wear resistance, which is of great significance for improving working efficiency and fostering green transformation of agricultural machinery. This paper summarized the application status and limitations of heterogeneous additive technologies such as overlay welding, thermal spraying, spray welding,and cladding for agricultural machinery soil-engaging components,focused on the application advantages of wear-resistant coating for soil-engaging components based on braze coating technology,and explored the existing problems and development direction of soil-engaging components coatings by braze coating technology.