Ultrasonic Testing

Ultrasonic soundwaves first used to detect internal defects in material in 1931 by German licenced. Industrial equipments started to used commonly in 1940s. Advances in electronic technology provide ultrasonic testing more practical and one of nondestructive testing methods.

Principals of ultrasonic testing is, high frequency soundwaves produced by probe are propogates into material and if any discontiniuty soundwaves reflects back to probe.

These waves transfered electrical signal and displayed on CRT screen. Range and height of echos Defines the defects locations. Commonly used technique of ultrasonic testing is pulse echo. Slag Inclusion, porosity, cracks, lack of fusions etc in welded parts casting defects, lamination check, thickness measurement and corrosion are inspected by ultrasonic testing.

• Pipeline girth weld inspection with phased array, casting parts, forging parts, steel plates, material thickness inspection
• More detailed inspection with A,B,C,S scan
• Heavy wall weld inspection withTOFD
• Digital data saving.
• Work allows working people to work without a break.
• Periodical controls are applied.

Advantages:

• One side access is enought to testing
• Much materials can be tested
• Best way todetect longitudional internal discontiniuty
• Mobile
• High penetration ability
• Very short time for result of examination
• Can be adopted to automatic system