PURPOSE: To provide a method for manufacturing continuously and efficiently fiber reinforced resin composite tubes having excellent pressure resistance, impact resistance, and excellent dimensional precision.
CONSTITUTION: A fiber reinforced thermoplastic resin composite tube E to be manufactured consists of a tube body A2 consisting of a sheet fiber composite for a first reinforcing layer, a thermoplastic resin inner tube B1, a second reinforcing layer C2 made of a tape-like or string-like fiber composite which is wound spirally, and a thermoplastic resin outer tube D. Insides of the four layer tubes, an inner tube sizing core 15 having an inner tube abutting section is provided. The inner tube sizing core 15 and a tip of a core 6 of a first extrusion mold are connected through a connecting member 7 which is arranged so as not to contact with the thermoplastic resin inner tube B1. On the outside of the outer tube D, a metallic sizing tube 16 is provided so as to face the inner tube sizing core 15 so as to lead the four layer tubes for sizing.
| JPS5563251 | FUEL PIPE IN SYNTHETIC SUBSTANCE COMPLEX |
| JPH04351389 | SYNTHETIC RESIN PIPE |
| JPH04160283 | HARD POLYVINYL CHLORIDE PIPE |
ADACHI KOICHI
NAKATAKE SUMIO
