| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to obtain an FRP molding having excellent external appearance by a pultrusion molding method by multi-stepwisely expanding the sectional shape of the X-axis direction of a cavity air gap in Y-axis direction with respect to the X-axis direction directed from the inlet side to the outlet side of a molding material, and providing a pouring inlet near the expanded stepwise part. SOLUTION: The air gap of cavities for forming moldings is enlarged at one stage or multi-stages partly or entirely to the X-axis direction from the inlet side to the outlet side. At the first stage 1, an FRP layer is formed by a pultrusion molding, and second and third steps, a surface layer is formed with resin, resin compound. To form the surface layer by pouring resin or resin compound, a pouring port 4 is provided on the outer periphery of the stepwise part. The cavity gap of the sectional shape made of the X-axis and Y-axis is designed for the size of the thickness of the molding (Y-axis direction), thereby making it possible to form the surface layer having the necessary thickness. |
