The invention belongs to the technical field of composite board preparation, and particularly relates to a
polyurethane honeycomb core composite board preparation device and a preparation method thereof.The
polyurethane honeycomb core composite board preparation device comprises a mounting frame, the side wall of the mounting frame is connected with a controller, the upper side wall of the mounting frame is fixedly connected with a supporting frame, and the supporting frame is of an inverted-L-shaped structure; a first electric push rod is fixedly connected to the upper side wall of the supporting frame, and the movable end of the first electric push rod penetrates through the supporting frame and is fixedly connected with a lifting plate. The two back plates of the
polyurethane honeycomb core
composite plate are roughened in advance, so that the
surface roughness of the back plates can be effectively improved, the contact area between an
adhesive and the back plates is increased, the interface anchoring effect is enhanced, the
bonding strength and interface reliability between the back plates and the
adhesive layer and between the back plates and the honeycomb core are remarkably improved, the defects of layering, debonding and the like are reduced, and the service life of the
composite plate is prolonged. Meanwhile, the stability and the service life of the plate under high and low temperature, damp and hot and external force are improved.