Inside ceiling panel of railroad box car

• Main Authors: GUO NA, MENG ZHAOJUN, GUO ANSHENG, QIAO DONG, ZHANG JIANWU, XIONG XUHUI, LIANG TAO, ZHANG LINWEN, WANG YANXIA, XU XIUFENG, YANG DEXU
• Format: Patent
• Language: English
• Published: 13.05.2015
• Subjects: BODY DETAILS OR KINDS OF RAILWAY VEHICLES; PERFORMING OPERATIONS; RAILWAYS; TRANSPORTING

The utility model discloses an inside ceiling panel of a railroad box car. The inside ceiling panel of the railroad box car comprises an arc-shaped steel plate and a plurality of pieces of cap-shaped steel, wherein the arc-shaped steel plate is fixed on the top of a side wall; the pieces of cap-shaped steel are uniformly distributed around the axis of the arc-shaped steel plate; heat-insulation materials are filled among the pieces of cap-shaped steel; an arc-shaped structural slab is fixedly arranged on the lower portion of each piece of cap-shaped steel; and the axis of each arc-shaped structural slab is coincident with that of the arc-shaped steel plate. The inside ceiling panel of the railroad box car has the advantages that the heat-insulation materials and the arc-shaped structural slabs are arranged on the lower surface of the arc-shaped steel plate, the existing rib plates of the ceiling panel are omitted, the arc-shaped structural slabs are fixedly connected with the pieces of cap-shaped steel to form a whole ceiling panel structure, the structural performance of the ceiling panel is improved, glass fiber reinforced polyurethane is high in using stability, excellent in weather resistance and excellent in mechanical property, the integral rigidity of the ceiling panel can also be improved, the inside ceiling panel is attractive, polyurethane hard foam plastics serve as the heat-insulation materials, the heat-insulation performance and the flame retardant property of the ceiling panel are improved, the using safety is ensured, and the using requirements of the railroad box car are met.