Metallurgy

Lifting and Handling Equipment

Lifting and Handling Equipment

Metallurgy

Specific Services

Surface crack detection using magnetic particles

Surface crack detection using magnetic particles

Magnetic particles non-destructive testing method is very efficient and simple to perform. It detects defects emerging at the surface in ferromagnetic...

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

Crack detection using PAUT

Crack detection using PAUT

The ultrasonic phased-array technique allows multiple angles to be used simultaneously, creating a two-dimensional view in a pie shape. This greater coverage...

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

Pins and shafts inspection

Pins and shafts inspection

The ultrasonic method is used to inspect pins and shafts in place. It is generally possible to detect if a pin is cracked from only one extremity.   Advantages...

The ultrasonic method is used to inspect pins and shafts in place. It is generally possible to detect if a pin is cracked from only one extremity.

 

Advantages :

  • Excellent sensitivity
  • Simple and quick to execute

 

To consider :

  • The end of the pins must be essentially flat and accessible
  • Phased-array ultrasonic testing can be used for more sensitivity

 

Technician Certifications:

  • ASNT, SNT-TC-1A, Ultrasonic Testing, Level 2
  • CGSB, Ultrasonic Testing, Level 1 or 2

Thickness Measurement UT/PAUT

Thickness Measurement UT/PAUT

We generally use "phased-array" ultrasonic testing for thickness loss detection over a larger area. This technique allows faster coverage and better...

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