结构的影响

　　The impact of structure

　　金属面夹芯板：夹芯板的结构通常由两层金属面板和中间的芯材组成。不同的芯材会影响夹芯板的性能。例如，岩棉夹芯板的中间芯材为岩棉，其纤维结构能够起到隔热和防火的作用；EPS 夹芯板和聚氨酯夹芯板的芯材为有机泡沫材料，虽然具有良好的保温性能，但耐火性能较差。当与岩棉组合使用时，夹芯板的结构可以发挥岩棉的耐火性能和有机泡沫材料的保温性能，从而提高整体的性能。

　　Metal faced sandwich panel: The structure of a sandwich panel is usually composed of two layers of metal panels and a core material in the middle. Different core materials can affect the performance of sandwich panels. For example, the middle core material of rock wool sandwich panel is rock wool, and its fiber structure can play a role in insulation and fire prevention; The core material of EPS sandwich panel and polyurethane sandwich panel is organic foam material, which has good thermal insulation performance, but poor fire resistance. When used in combination with rock wool, the sandwich panel structure can give play to the fire resistance of rock wool and the thermal insulation performance of organic foam materials, thus improving the overall performance.

　　换流站封堵复合板：复合夹芯板的结构通常由多层材料组成，如钢板、硅酸铝板和空气层等。硅酸铝厚度相等时，背火面温度随着空气层厚度的增大而减小。这表明空气层的存在可以起到隔热作用，从而影响复合夹芯板的耐火性能。

　　Converter station sealing composite panel: The structure of composite sandwich panels is usually composed of multiple layers of materials, such as steel plates, aluminum silicate plates, and air layers. When the thickness of aluminum silicate is equal, the temperature of the backfire surface decreases with the increase of the thickness of the air layer. This indicates that the presence of an air layer can serve as insulation, thereby affecting the fire resistance performance of composite sandwich panels.

　　双钢板混凝土组合剪力墙用板材：双钢板混凝土组合剪力墙采用 ALC 板或非膨胀型防火涂料进行保护，其结构可以有效地阻止火势蔓延，提高墙体的耐火性能。此外，增大栓钉和对拉螺栓间距、增大轴压比等因素也会影响墙体的结构稳定性和耐火性能。

　　Double steel plate concrete composite shear wall panels: Double steel plate concrete composite shear walls are protected by ALC panels or non expanding fireproof coatings, which can effectively prevent the spread of fire and improve the fire resistance performance of the wall. In addition, factors such as increasing the spacing between bolts and tension bolts, and increasing the axial compression ratio can also affect the structural stability and fire resistance of the wall.

　　制作工艺的影响

　　The impact of production process

　　耐火纤维板：采用真空吸滤工艺制备耐火纤维板坯体，并分别使用微波干燥工艺和热风干燥工艺进行干燥。研究表明，微波干燥纤维板在 800 和 1000℃时的热导率略低于热风干燥纤维板；微波干燥纤维板的耐压强度、断面硬度和磨后表面硬度均大于热风干燥纤维板，但磨前表面硬度显著小于热风干燥纤维板；微波干燥纤维板面方向和厚度方向的收缩相对均匀，干燥速度远大于热风干燥；微波干燥纤维板中硅溶胶呈薄片状分布在纤维之间，热风干燥纤维板的则呈点状附着在纤维上。这些差异表明制作工艺对耐火纤维板的性能有重要影响。

　　Refractory fiber board: The refractory fiber slab is prepared using vacuum filtration technology, and dried using microwave drying technology and hot air drying technology respectively. Research has shown that the thermal conductivity of microwave dried fiberboard is slightly lower than that of hot air dried fiberboard at 800 and 1000 ℃; The compressive strength, cross-sectional hardness, and surface hardness of microwave dried fiberboard are all higher than those of hot air dried fiberboard, but the surface hardness before grinding is significantly lower than that of hot air dried fiberboard; The shrinkage of the fiber surface direction and thickness direction in microwave drying is relatively uniform, and the drying speed is much faster than that of hot air drying; The silica sol in microwave dried fiberboard is distributed in thin sheets between the fibers, while in hot air dried fiberboard, it adheres to the fibers in dots. These differences indicate that the manufacturing process has a significant impact on the performance of refractory fiberboard.

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