Magnetic Particle Testing
Magnetic Particle Testing is a simple but sensitive method for detection of inhomogeneities at (or close to) surfaces of ferromagnetic materials. During magnetisation of these materials a magnetic leakage flux appears above material separations (e.g. cracks, pores). This magnetic leakage flux attracts the ferromagnetic particles.
HELLING offers different testing products (fluorescent or coloured) in form of
- dry powder
- liquid concentrate, water-based
- ready-to-use oil-based suspension
HELLING develops and produces test equipment such as
- hand yoke magnets
- cross yokes
- permanent magnets
for generating the magnetid field. These devices are hand-made by HELLING. Test bodies and reference blocks according to international standards enable control of testing products in conformity to respective standards.
Furthermore, HELLING manufactures completely equipped test facilities for magnetic particle testing according to the customer's specification.