The professionals at Inspectrum Testing Inc. perform magnetic particle testing (MPI) in Grande Prairie to identify surface and shallow subsurface discontinuities in ferromagnetic materials. A few examples of ferromagnetic materials are iron, nickel, cobalt, and other alloys.
MPI can be done by direct or indirect magnetization. In direct magnetization, the electric current is passed through the object to be tested and a magnetic field is formed in the material. In the indirect magnetization, no electric current is passed and the magnetic field is applied from an external source.
Wet Horizontal MPI Machine
A wet horizontal MPI machine is the most commonly used mass-production inspection machine. This machine has a head and tailstock where an object is placed for magnetization. Between the head and tailstock, there is an induction coil that is used to change the orientation of the magnetic field by 90°.
The magnetic yoke is a hand-held device that induces a magnetic field between two poles. This device is commonly used for outdoor purposes, remote locations, and weld inspection.
For adequate inspection, the yoke should be rotated 90° for every inspection area to identify horizontal and vertical discontinuities. Using this device, subsurface detection can be restricted. Dry magnetic powders and aerosols, are utilized with yoke MPI inspection
Our Service Areas
Inspectrum Testing Inc. provides magnetic particle inspection (MPI) services to many areas including Grande Prairie, Dawson Creek, Fort St. John, Grande Cache, Peace River, High Level, and others. We also offer bench services out of our main office in Grande Prairie. Our Magnaflux Bench is capable of handling pieces up to 15000 mm in length and has a 500 mm diameter induction coil. Contact us today!