Lifting and Handling Equipment

Magnetic particles non-destructive testing method is very efficient and simple to perform. It detects defects emerging at the surface in ferromagnetic materials. A magnetic yoke is generally used to create the magnetic field.

Different Techniques:

• Dry powder (yellow or red)
• Black particles on a white background ("black & white")
• Fluorescent particles (in dark environment)

Advantages :

• Fast and effective
• Excellent probability of detection
• Applicable on various geometries
• The dry powder technique is applicable at high temperature

To note :

• Applicable only to ferromagnetic materials
• Detection of surface defects, or very close to the surface, only
• Requires a clean surface (no grease)

Technician Certifications:

• ASNT, SNT-TC-1A, Magnetic Particles, Level 2
• CGSB, Magnetic Particles, Level 2

The ultrasonic phased-array technique allows multiple angles to be used simultaneously, creating a two-dimensional view in a pie shape. This greater coverage of the wall or weld section allows rapid detection of cracks on the opposite surface, as well as a good interpretation of the type of defect.

Advantages :

• Fast scans with excellent probability of detection
• Characterization and precise positioning of defects
• Volumetric inspection, not just on the surface
• As effective for inspecting "T" joints as butt joints
• Applicable on hot surfaces (variable maximum temperature)

To note :

• Requires application of couplant to inspection surfaces
• Sensitive to irregularities at the contact surface
• Technique sensitive to very small defects, on the other hand, a crack must be of a certain depth to be characterized as such (from 1 to 3 mm depending on the application)

Certifications:

• ASNT, SNT-TC-1A, Ultrasonic testing and PAUT, level 2 and 3
• CGSB, Ultrasonic Testing, level 2
• API, QUPA
• ASNT, Ultrasonic Testing, level 3

We generally use "phased-array" ultrasonic testing for thickness loss detection over a larger area. This technique allows faster coverage and better interpretation of surface profiles. Localized thickness measurements can be easily taken using conventional ultrasonic testing.

 

Advantages :

• Precise thickness data
• Possibility to inspect through a uniform and well-adhered paint
• PAUT: faster coverage of large areas
• PAUT: better interpretation of surface profiles

 

To consider :

• Need for contact with the inspected part
• It may be difficult or impossible to take measurements from a heavily corroded contact surface