10.14489/td.2016.04.pp.028-035

2016, 04 April

DOI: 10.14489/td.2016.04.pp.028-035

Kireev A.N.
A NEW WAY OF SENSITIVITY CALIBRATION OF THE ULTRASONIC EQUIPMENT AT THE STANDARD SAMPLE SO-1 IN DIAGNOSIS OF THE WELDED JOINTS OF THE RAILWAY ROLLING STOCK
(pp. 28-35)

Abstract. The work solved an actual scientific and technical problem of improving the diagnosis of welded structures of the vehicle-railway rolling ultrasonic echo technique. Improvement is achieved by the transition to a new process calibration of sensitivity of the ultrasound equipment on the standard sample SB-1. Developed method allows for setting a sample SO-1 to take into account the size of the threshold value of the standard flat-bottomed cylindrical reflector. The value is defined according to the technical requirements to the object of control. The method is based on the mathematical apparatus produced experimentally-theoretical way. The software NDTRT-06.01 is developed to automate the calculations when setting the sensitivity of ultrasound equipment.

Keywords: railway, rolling stock, technical diagnostics, nondestructive testing, ultrasonic testing, ultrasound echo-method, a reference reflector, defect.

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+ - References Click to collapse

1. Basov G. G., Kireev A. N., Dodonov V. I. (2010). Peculiarities of adjustable sensitivity of ultrasound equipment using various types of reference reflectors in the diagnostics of welded structures of rolling-stock carriage. Resource production technology and plastic working materials in mechanical engineering. Collection of scientific papers, pp. 167-175. Lugans'k,
2. Non-destructive testing. Welded joints. Ultrasonic methods. (1987). Ru Standard No. GOST 14782–86. Moscow: Izdatel'stvo standartov.
3. Ermolov I. N. (1981). Theory and practice of ultrasonic testing. Moscow: Mashinostroenie.
4. Kireev A.M. (2013). Method of flaw detector sensitivity settings in ultrasonic testing of welded joints of steel products. Patent No. 81892. Ukraine.

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