FLAW DETECTION METHOD FOR FIBER REINFORCED WIRE

摘要

PROBLEM TO BE SOLVED: To detect flaw of a fiber reinforced conduction accurately on a production line. SOLUTION: A water tank 16 is arranged in the stranding process of fiber reinforced conductors 19 and an ultrasonic probes 18 are arranged around the conductors 19. The ultrasonic probes 18 is split into four sections and detects flaw over the entire circumference of conductors 19. The ultrasonic probes 18 are fixed to the water tank 16 by means of jigs 17 and each section can be adjusted in movement. Inside diameter of the ultrasonic probes 18 is preferably set 2-3mm larger than the outside diameter of fiber reinforced conductors 19 in order to prevent generation of water bubble. Since the fiber reinforced conductors 19 are passed through a water tank and a submersible ultrasonic flaw detector is installed, high accurate noncontact flaw detection of fiber reinforced wire can be realized during movement of the wire on a production line.