| 摘要 |
<p>PURPOSE:To manufacture a composite resin-steel plate having one side coated with thermosetting resin and the other side laminated with thermoplastic resin. CONSTITUTION:One side of a steel plate is first coated with thermosetting resin and, after hardening by heating, thermoplastic resin is then applied to the other side thereof using a T-die by extrusion laminate while maintaining the steel plate at this hardening temperature. This method permits an inexpensive manufacture of the composite resin-steel plate having different sides at a single line. As the thermosetting resin, a resin of the type employed conventionally may be used. In the T-die and the extrusion laminate, polyethylene, polypropylene, polyethylene terephthalate, polyamide, etc., may be used.</p> |
