摘要
磨浆机是一种极为重要的制浆造纸设备,其刀具性能直接影响制浆水平和设备使用寿命。为充分提升制浆造纸磨浆机刀具的综合性能,以激光熔覆技术在65Mn钢基体上制备了一种WC颗粒增强Ni基陶瓷复合涂层。以试验形式对该涂层的力学性能、耐磨性能和耐腐蚀性能等进行了分析。结果表明,该涂层的显微硬度约2200.0HV,结合强度超过200.0MPa,弹性模量约为211.3GPa,涂层耐磨性在基体基础上大幅度提升,热力学稳定性强,腐蚀速率更慢。
The pulp mill is an extremely important pulp and papermaking equipment.The performance of its cutting tools directly affects the quality of the pulp and the service life of the equipment.To fully enhance the comprehensive performance of the grinding tools for pulp and paper mills,a WC particle-reinforced Ni-based ceramic composite coating was prepared on a 65Mn steel substrate by laser cladding technology.The mechanical properties,wear resistance and corrosion resistance of the coating were analyzed in the form of experiments.The results show that the microhardness of the coating is approximately 2200.0HV,the bonding strength exceeds 200.0MPa,the elastic modulus is about 211.3GPa,the wear resistance of the coating is significantly improved on the basis of the substrate,the thermodynamic stability is high and the corrosion rate is slower.
作者
陈虹蓉
戴丽萍
CHEN Hongrong;DAI Liping(Tongchuan Vocational and Technical College,Tongchuan 727031,China)
出处
《造纸科学与技术》
2025年第9期89-91,95,共4页
Paper Science And Technology
基金
陕西省教育学会“十四五”教育科研规划2024年度课题(SJHYBKT2024184-02)。
关键词
造纸磨浆机
65Mn钢刀片
激光熔覆技术
陶瓷涂层
paper grinding machine
65Mn steel blade
laser cladding technology
ceramic coating
