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1.前言新研制的钢-塑-钢夹层钢板是将两块钢板用塑料粘合而制成的一种新结构钢板。这种夹层钢板用于汽车,可减轻车身的重量、降低噪声等级。由于这种夹层钢板在成型过程中可能产生裂纹、收缩不均和皱折等缺陷,加之两板之间因存在塑料而影响到焊接效果,目前还仅限于在汽车工业中使用。这种夹层钢板主要用于汽车构件,例如百叶板、车顶板和车壁板等需用减震材料的地方,以降低开关百叶板时及雨水打在车顶板上时的噪声等级并减轻车壁板的重量。然而,这种钢板在成型时容易产生缺陷,目前
1. Introduction The newly developed steel-plastic-steel sandwich plate is a new structural steel plate made of two steel plates glued together with plastic. This laminated steel sheet is used in automobiles to reduce body weight and noise levels. Because of this sandwich plate may have cracks in the forming process, uneven shrinkage and wrinkles and other defects, coupled with the presence of plastic between the two plates affect the welding effect, is still limited to use in the automotive industry. This laminated steel sheet is mainly used for automotive components, such as louvers, roof panels and car wall panels where damping materials are required to reduce and mitigate the noise level when switching louvers and rain on roof panels The weight of the car siding. However, this type of steel is prone to defects during molding, at present