Alcance
This document specifies an A-type ultrasonic pulse contact method applying the ultrasonic longitudinal wave technique to hardmetals.This document is applicable to the ultrasonic inspection for a hardmetal rod that has a circular end face with a diameter not less than 6,0 mm and a rod length of 40,0 mm to 380,0 mm, or a hardmetal product that has a non-circular testing area not smaller than the coverage area of the probe (not less than 12,0 mm in diameter) and a height of 10,0 mm to 380,0 mm.Within the detection range specified in this document, the sound transmission energy is expressed by the probe driving voltage, and the range is 100,0 V to 200,0 V.
