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    • 6. 发明授权
    • Double sheet metal consisting of two covering metal sheets and an intermediate layer
    • 由两块覆盖金属片和中间层组成的双金属片
    • US06428905B1
    • 2002-08-06
    • US09623782
    • 2001-01-10
    • Friedrich BehrKlaus BlümelHorst MittelstädtCetin NazikkolWerner HufenbachFrank Adam
    • Friedrich BehrKlaus BlümelHorst MittelstädtCetin NazikkolWerner HufenbachFrank Adam
    • B32B302
    • E04C2/292E04C2/326Y10T428/12347Y10T428/12389Y10T428/12569
    • The invention relates to a double-layered sheet comprising two cover sheets (1, 2) with a space between them, and a fill material (3) which fills the space between said cover sheets. Said fill material is made of plastic, in particular of porous duroplastic plastic, comprising embedded hard bodies (6, 7, 8, 9). In order to obtain the best possible geometrical moment of inertia while keeping the weight per surface area low, and in particular in order to prevent shearing out under pressure, of the cover sheet (1) acting as a compression chord, during pressing together of the double-layered sheet, the fill material is characterised by at least two stress/strain characteristic curves. In particular the fill material comprises pores which are sealed off from each other. The plastic fraction of the fill material (3) which acts as a matrix for the hard bodies (6, 7, 8, 9) determines the softer stress-strain characteristic curve, while the hard bodies (6, 7, 8, 9) determine the harder stress-strain characteristic curve.
    • 本发明涉及一种双层片,其包括两个在它们之间具有空间的覆盖片(1,2)和填充所述覆盖片之间的空间的填充材料(3)。 所述填充材料由塑料制成,特别是多孔塑料塑料制成,包括嵌入的硬质体(6,7,8,9)。 为了获得最佳的几何惯性力矩,同时保持每个表面积的重量低,特别是为了防止在压力下剪切作用,作为压缩弦的盖片(1) 双层片,填充材料的特征在于至少两个应力/应变特性曲线。 特别地,填充材料包括彼此密封的孔。 作为硬体(6,7,8,9)基体的填充材料(3)的塑性部分决定了较软的应力 - 应变特性曲线,而硬质体(6,7,8,9) 确定较硬的应力 - 应变特性曲线。