The invention discloses a light high-pressure-resistance heat insulation type thermal protection structure in the technical field of composite products, and the structure comprises an aerogel heat insulation plate which comprises a square box body, bosses are arranged at the four corners and the center of the box body, and round holes are formed in the bosses; the mixed powder comprises aerogel powder and SiC powder, and a cavity formed between the boss of the aerogel heat insulation plate and the box body is filled with the mixed powder; the ceramic cylinder is filled in the circular hole of the boss; the carbon fiber reinforced resin-based composite board is adhered to the aerogel heat insulation board and used for sealing a cavity of the aerogel heat insulation board. The carbon fiber reinforced resin-based composite board is good in structural bearing, light in weight, excellent in heat insulation effect and simple in structure, the overall structural weight is effectively reduced by adopting a gradient heat insulation material, meanwhile, a sample piece can tolerate 800 DEG C high-temperature thermal examination, and a Si3N4 ceramic cylinder in the structure is not prone to deformation due to the fact that the thickness of the carbon fiber reinforced resin-based composite board is larger than that of the carbon fiber reinforced resin-based composite board. And higher pressure load can be borne.
本发明公开了复材制品技术领域内的一种轻质高抗压隔热型热防护结构,包括:气凝胶隔热板,包括方形盒体,盒体的四个角以及中心设有凸台,凸台上开设有圆孔;混合粉末,包括气凝胶粉末及SiC粉末,填充在气凝胶隔热板凸台与盒体之间形成的腔体内;陶瓷圆柱,填装在凸台的圆孔内;碳纤维增强树脂基复合板,粘接在气凝胶隔热板上,用以密封气凝胶隔热板的腔体,本发明结构承载好、质量轻、隔热效果优异,结构简单,通过采用梯度隔热材料,有效降低了整体结构质量,同时样件能够耐受800℃高温热考核,结构中的Si3N4陶瓷圆柱,能够承受更高的压力载荷。
Lightweight high-pressure-resistant heat insulation type thermal protection structure and preparation method thereof
一种轻质高抗压隔热型热防护结构及其制备方法
2024-08-16
Patent
Electronic Resource
Chinese
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