MP Magnetic particle test will be
needed to check your pipeline if you are in oil industry. MT as it is called in
short will be required to find out surface irregularities of non-destructive
type, which would include discontinuities in cobalt, nickel and ferromagnetic
alloy materials. Crack on the surface will appear and the safety and
trustworthiness of the pipe will be compromised, hence it is important that MT Magnetic particle
testing
is conducted on them. Cracks and breach resulting in the pipe line will
transform into leaking of gas and oil as well as various mined materials. This
could be catastrophic hence it is necessary to conduct the test ever now and
then.
The MT testing however must be
conducted by an agency which is already into the business and have huge
experience with the oil fields. One must also ensure that the agency has the
infrastructure and machinery to conduct tests in the workshop as well as on the
field. Corrosion and cracks not only would compromise the safety of the pipe
but also result into huge losses when accidents occur. Magnafluxing is the most popular method of
magnetic particle inspection and a company with the same name was manufacturing
material and equipment required for this non-destructive
testing.
Electrical currents are used in
the testing and there are several types of them for the magnetic particle
testing inspection. You need to consider material, part geometry; the kind of
discontinuity the pipeline is experiencing to select the proper current for
magnetizing. Another thing for consideration is how far the magnetic field requires
penetrating in to the test part. The most used machinery for the testing is the
horizontal MPI machine which is also mass produced, and it is equipped with a
head and tail stock within which the test part will be placed for magnetizing.
These machines are built by specification and customized for use. Iron oxide is
the common particle applied in the tests for both wet and dry systems.
It is important that the tests
are conducted by an authorized agency which is certified to conduct these
magnetic particle tests and also that the agency has the right infrastructure
and the right technicians to undertake them. There are agencies that have their
own comprehensive workshops and also employ experienced inspectors to check
discontinuities. In Wyoming the Hager Industries have been around for 40 years
and have been doing great service to oil and gas industry with its
comprehensive magnetic testing services.