液压与气动2026，Vol.50Issue(8)：9-19,11.DOI:10.11832/j.issn.1000-4858.2026.08.002
改性h-BN/SiO2纳米添加剂增强轴向柱塞泵配流盘摩擦学性能
Effect of Modified h-BN/SiO2 Nano-additives on Friction Performance of Axial Piston Pump Valve Plate
摘要
Abstract
In axial piston pumps,fluctuations in operating conditions can cause the oil film to break down,leading to abrasive wear,adhesive wear,and even disc burning,which severely affects equipment reliability and service life.To improve their tribological properties,five groups of composite nano-lubricants are prepared using No.15 aviation hydraulic oil as the base oil,with hexagonal boron nitride(h-BN)and silicon dioxide(SiO2)nanoparticles modified by dehydrated sorbitan monooleate and hexadecyltrimethoxysilane,respectively.The success of the modification is confirmed using scanning electron microscopy.Fourier-transform infrared spectroscopy,and Raman spectroscopy,which also demonstrates a significant improvement in the dispersion stability of the nano-additives within the lubricant.Tribological tests using high-speed steel and tin bronze as friction pairs show that,compared to the base oil,the lubricant containing the modified h-BN/SiO2 composite nano-additives exhibits significantly reduced friction coefficients and wear rates.Further analysis using scanning electron microscopy,optical profilometry,and X-ray photoelectron spectroscopy reveals the mechanism by which the modified nanoparticles enhance the anti-friction and anti-wear performance of the distribution plate through the formation of a stable lubricating transfer film.This provides an effective strategy and theoretical basis for the development of novel nano-lubricants for high-performance hydraulic components.关键词
配流盘/六方氮化硼/二氧化硅/纳米添加剂/摩擦学性能Key words
valve plate/hexagonal boron nitride/silicon dioxide/nano-additives/tribological properties分类
机械制造引用本文复制引用
聂瑞,李浩然,梅浩聪,刘晓超,钱程..改性h-BN/SiO2纳米添加剂增强轴向柱塞泵配流盘摩擦学性能[J].液压与气动,2026,50(8):9-19,11.基金项目
浙江省宁波市北仑区科研基金(2021A-046-G,2022R01004) （2021A-046-G,2022R01004）
宁波市自然科学基金重点项目(2024J001) （2024J001）
国家自然科学基金面上项目(52475048) （52475048）
北仑区关键核心技术攻关项目(2024BLG009) （2024BLG009）
