Ultrasonic detection method of the internal defects of a railroa

Details Ultrasonic detection method of the internal defects of a railroa Ultrasonic detection method of the internal defects of a railroa

1986-05-15

1987-10-20

Birmiel, Howard A.

Measuring and testing

Vibration

By mechanical waves

G01N 2904

Patent

active

047005742

ABSTRACT:
An ultrasonic beam is made to penetrate into the rail from the median surface (A) of the rolling table of the rail along a direction forming in horizontal projection an angle (.alpha..sub.1) comprised between 10.degree. and 25.degree. with the longitudinal axis of the rail and in vertical projection an angle (.alpha..sub.2) with the symmetric plane of the rail comprised between 60.degree. and 80.degree.. The echoes reflected by a displaced oval flaw are detected either directly or indirectly.

REFERENCES:
patent: 3962908 (1976-06-01), Joy
patent: 4174636 (1979-11-01), Pagano
patent: 4487071 (1984-12-01), Pagano et al.
"Fatigue Crack Growth and Fracture Mechanics Considerations for Flaw Inspection of Railroad Rail", Steele, Materials Evaluation, Oct. 1980, pp. 33-38.

Affiliated with

Also associated with

Rating

Ultrasonic detection method of the internal defects of a railroa does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ultrasonic detection method of the internal defects of a railroa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic detection method of the internal defects of a railroa will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1605589