A fireproof bottom structure of a vehicle body comprises a sandwich panel (5) composed of a metal cover layer (10) and a metal base layer (20), and a core layer (30) and a metal edge profile (40) between the sandwich panel (5) and the core layer (30). The entire surface of the core layer (30) is surrounded by the metal cover layer (10), the metal base layer (20) and the edge profile (40). The bottom structure has a mineral coolant layer (60) on the side of the base layer (20) facing away from the core layer (30), and the side of the mineral coolant layer (60) facing away from the core layer (30) is covered with an intumescent layer (70). The core layer (30) is made of structural foam, in particular PET foam or cork wood, or comprises at least up to 95% by weight of PET or cork wood.
车身的防火的底部结构,包含由金属覆盖层(10)和金属基层(20)构成的夹层板(5)和处于其之间的芯层(30)以及金属边缘型材(40)。芯层(30)整个面地通过金属覆盖层(10)和金属基层(20)和边缘型材(40)包围。底部结构在基层(20)的背对芯层(30)的侧上具有矿物冷却剂层(60),且矿物冷却剂层(60)的背对芯层(30)的侧以膨胀型层(70)覆盖。芯层(30)由结构泡沫、尤其由PET泡沫或由轻木制成,或包含至少达95重量%的PET或轻木。
Fireproof underbody structure of vehicle body of lightweight structure type
以轻量化结构类型的车身的防火的底部结构
2024-04-12
Patent
Electronic Resource
Chinese
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |