玻璃微珠填充硅树脂可磨耗层的制备工艺及其在航空发动机静子组合件上的应用  

Preparation technology of glass microspheres reinforced silicone resin and its application as abradable coating for stator component in aero-engine

作　　者：史国华 蒲胜利 王振北 SHI Guohua;PU Shengli;WANG Zhenbei(AECC Aviation Power Co.,Ltd.,Xi’an 710021,China)

机构地区：[1]中国航发动力股份有限公司,西安710021

出　　处：《航空材料学报》2024年第3期118-123,共6页Journal of Aeronautical Materials

摘　　要：树脂基可磨耗层是航空发动机静子组合件的重要组成部件,利用其可磨耗性可保护转动件与静子组合件,并通过减小转动件与静子组合件之间的间隙优化航空发动机性能。采用加成型硅树脂为基体,研究不同粒径与堆积密度的实心/空心玻璃微珠对复合磨耗层加工性能的影响规律;采用专用磨耗试验机模拟高速叶片磨耗工况,研究不同种类与含量玻璃微珠对硅树脂复合材料磨耗性能的影响规律。结果表明:H型(粒径分布20~80 um)空心玻璃微珠填充硅树脂复合材料具有优异的表面质量、流淌性与综合性能。通过玻璃微珠填充填料优选与含量调控,结合工装设计以及灌注工艺参数调控,形成玻璃微珠填充硅树脂可磨耗层的可控制备工艺,并在航空发动机静子组合件上得到应用与验证。The abradable coating is one of the significant stator components in aero-engine,which protects the rotating blade and casing by abrading itself and improves the engine performance by reducing the gap between the rotor and stator.In this study,taking the addition-type silicone resin as the matrix,the effect of diameter and stacking density of glass hollow/solid microspheres on the processability of abradable coating was investigated.Moreover,the effect of glass microsphere type and content was illustrated using a self-designed wear tester simulating the working conditions of stator in aero-engine.The results show that the silicone resin reinforced by H-type(size distribution 20–820 um)hollow glass microspheres exhibits excellent surface quality,flowability and comprehensive performance.The suitable preparation technology of abradable coatings was developed by glass microsphere selection,content controlling,tool design and infusion parameters optimizing.The as-prepared glass microsphere/silicone abradable composite is successfully applied and verified in aero-engine stator component.

关 键 词：玻璃微珠 硅树脂 可磨耗层 工艺调控 

分 类 号：V258[一般工业技术—材料科学与工程] TG174.4[航空宇航科学与技术—航空宇航制造工程]