| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a composite plastic panel which has rigidity and lightness necessary to be used for a concrete mold, etc., flatness and smoothness necessary for a panel, and is free from strain and warpage. SOLUTION: In the method for producing the composite plastic panel using plastics as main components, the surface of a heated composite plastic panel material is cooled by a belt press 4 so that the surface temperature of panel material 5 is decreased monotonously. |
