热喷涂铝青铜-聚苯酯涂层耐磨性能研究  

Study on the Wear Resistance of Thermal Sprayed Aluminum Bronze Polyester Coating

作　　者：佘定君 李卫侠 康飞远 刘通 She Dingjun;Li Weixia;Kang Feiyuan;Liu Tong(Aecc Hunan Aviation Powerplant Research Institute,Zhuzhou 412002;BGRIMM Technology Group,Beijing 100160)

机构地区：[1]中国航发湖南动力机械研究所,株洲412002 [2]矿冶科技集团有限公司,北京100160

出　　处：《热喷涂技术》2023年第1期66-71,12,共7页Thermal Spray Technology

摘　　要：本文采用大气等离子喷涂工艺在典型零件支承环上制备了铝青铜-聚苯酯耐磨涂层,测试了涂层硬度、结合强度、微观组织等性能,重点考核了在转速20000 r/min,输入扭矩800 N·m,滑油温度90~100℃,滑油压力0.2~0.3 MPa,运行时间50 h条件下的支撑环涂层整机台架试验后的耐磨性能;试验结果表明,制备的铝青铜-聚苯酯耐磨涂层硬度89.6 HR15Y,结合强度25.5 MPa,涂层组织均匀、孔隙率为15.18%,采用目视和体视显微镜检查台架试验后的典型件涂层外观状态,通过高精度三坐标测量方法计算涂层的磨损量,台架考核试验结果表明,典型件铝青铜-聚苯酯涂层完整、光滑,无开裂、剥离、剥落,涂层磨损最严重位置的磨损量为0.006 mm,涂层耐磨性能优异。In this paper,aluminum bronze polyester wear-resistant coating was prepared on the support ring of typical parts by atmospheric plasma spraying process.The hardness,bonding strength,microstructure and other properties of the coating were tested.The wear-resistant performance of the whole support ring coating machine after bench test under the conditions of 20000 r/min rotating speed,800 N·m input torque,90~100℃lubricating oil temperature,0.2~0.3 MPa lubricating oil pressure,and 50 h operation time was mainly examined.The test results showed that the prepared uniform aluminum bronze polyester wear-resistant coating exhibited the hardness of 89.6 HR15Y,the bonding strength of 25.5 MPa with porosity of 15.18%.The appearance status of the typical component coating after bench testing was checked using visual and stereomicroscopes,and the wear amount of the coating was calculated by high-precision three-dimensional measurement methods.The bench testing results showed that the aluminum bronze polyester coating of the typical component was complete,smooth,and free from cracking,peeling,the wear amount at the most severely worn position of the coating was 0.006 mm,indicating excellent wear resistance of the coating.

关 键 词：减磨功能涂层 铝青铜-聚苯酯涂层 耐磨性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]