One of the non-destructive testing methods is magnetic particle testing (MT). This method is only applied for the examination of magnetizable (ferromagnetic) materials such as iron, cobalt and nickel. The material to be inspected is turned into a magnet. If the magnetic field is drawn over the soft iron, the magnetization suddenly disappears and the material is restored. However, if the magnetic field is drawn from the carbon steel, this feature will continue for a while. Magnetic field method transverse errors, electric field method with longitudinal errors are detected. If a magnetic flux is applied to the inspection surface, leakage flux occurs on discontinuities on the surface, depending on the position of the surface. In the meantime, if ferromagnetic powders are sprinkled on the surface of the examination, these powders are collected on the discontinuities by drawing them on the leakage flux. The location of discontinuities can thus be determined.
The basic principle of the magnetic particle inspection method is to generate leakage magnetic current in the discontinuities of the surface of the magnetizable materials and to collect the iron powders sprayed on the surface of the material over these cracks in the material. In general, discontinuities at or just below the surface of the material can be detected by this method.
The Regulation on the Health and Safety Conditions in the Use of Work Equipment issued by the Ministry of Labor and Social Security was issued to regulate the minimum requirements for the health and safety of work equipment used in workplaces. Details of Annex of the Regulation on Maintenance, Repair and Periodic Inspections (Annex 3) are provided. Our company also provides magnetic particle inspection services within the framework of non-destructive testing services. In these studies, relevant legal regulations, standards and test methods published by local and foreign organizations are complied with. A few standards are based on:
- TS EN ISO 5817 Welding - Steel, nickel, titanium and their alloys melting welded (not including bundle welding) - Quality levels for defects)
- TS EN ISO 17638 Non-destructive testing of welds - Magnetic particle inspection
- TS EN ISO 23278 Non-destructive testing of welds - Inspection of welds with magnetic particles - Acceptance levels
- TS EN ISO 9934-1 Non-destructive testing - Magnetic particle inspection - Part 1: General principles
- TS EN ISO 9934-2 Non-destructive testing - Magnetic particle inspection - Section 2: Detection media
- TS EN 10228-1 Non-destructive testing of forged steels - Part 1: Magnetic particle inspection
- TS EN 1369 Castings - Magnetic particle inspection
- TS EN ISO 17635 Non-destructive testing of welds - General requirements for metallic materials
