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首次针对维形防热涂层技术在飞行器表面结构上的应用,分别开展拉剪实验、石英灯加热实验以及高低温与湿热实验。在铝合金、合金钢实验件上分别喷涂两种底漆涂料HTL-92、H61-83,对比分析不同底漆涂料与不同金属基体的结合性能;在涂覆两种底漆涂料HTL-92、H61-83的铝合金实验件上喷涂防热涂料TR-48,对比分析不同底漆涂料与防热涂料的结合性能;在铝合金、合金钢实验件上分别喷涂HTL-92底漆涂料、TR-48防热涂料、H61-32面漆涂料,研究所采用的防热层对金属基体的热防护性能;利用3个喷涂不同厚度防热层的结构实验件,研究所采用的防热层的环境适应性。研究结果表明:铝合金和合金钢金属基体涂覆由HTL-92底漆涂料、TR-48防热涂料、H61-32面漆涂料组成的防热层时,结合强度高且没有裂纹、鼓泡或脱落情况出现,说明这种防热层既能满足飞行器飞行过程中的防热要求又能维持表面结构良好的气动外形。
For the first time, the application of dimension-shaped heat-resistant coating technology on the surface structure of aircraft, respectively, to carry out the shear test, quartz lamp heating experiment and high and low temperature and damp heat experiments. Two kinds of primer coatings, HTL-92 and H61-83, were sprayed onto the aluminum alloy and steel alloy test pieces, respectively, and the bonding properties of different primer coatings and different metal substrates were compared. When two primer coatings HTL-92, H61-83 was sprayed with heat-resistant coating TR-48 on the aluminum alloy test pieces. The bonding performance of different primer coatings was compared with that of the heat-resistant coating. HTL-92 primer coatings were sprayed onto the aluminum alloy and alloy steel test pieces respectively. TR -48 heat-resistant paint, H61-32 paint, the Institute of the thermal protection layer on the thermal protection of the metal substrate; the use of three different thickness of the structure of spray test the thickness of the heat-proof layer Environmental adaptability. The results show that aluminum alloy and alloy steel metal substrates coated with HTL-92 primer coating, TR-48 thermal coating, H61-32 top coat paint composition of the heat-resistant layer, the combination of high strength and no cracks, bubbling Or shedding of the situation, indicating that this layer can both meet the anti-heat requirements of the aircraft flight process and maintain a good surface structure of the aerodynamic shape.