SYNTHETIC RESIN-MADE TUBE

摘要

PROBLEM TO BE SOLVED: To provide a synthetic resin-made tube capable of enhancing the internal pressure creeping resistance and preventing crack development and eccentricity of the tubular axis by reinforcing a tubular wall while increasing the strength of the tubular wall itself.

SOLUTION: The synthetic resin-made tube has a tubular wall (2) in which side edge portions (1a) and (1b) of a preceding strip (1) and a succeeding strip (1) are heat-bonded or welded to each other by spirally winding the strip (1) formed of a polyethylene resin of medium density. In addition, in this synthetic resin-made tube, reinforcing wires (3) formed by converging fibers (4) formed of oriented ultra-high molecular weight polyethylene resin, and fibers (5) formed of low-density polyethylene resin are spirally wound around the tubular wall (2).

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