Non-Destructive Controls on Steel Wire Rope and Lifting Accessories
SIRTEF has got inside personnel qualified by the CICPND and certified at the 2nd level to make Non-Destructive Controls on steel wire ropes, slings and lifting accessories with the following methods:
This kind of control is carried out to highlight defects on surfaces of any kind of material (castings, welding, pipes, etc.). The non-destructive test method with penetrating liquids is based on visual examination of the surface after the application, in sequence, of a penetrating product and a detector one.
The method makes all discontinuities visible on the surface as they normally are not visible or are hardly visible to the naked eye instead. Here below technical details:
- Controllable surfaces:
Actually, all non-porous surfaces, areas without grooves or areas able to absorb penetrating liquids.
- Detectable Defects:
Surface defects such as cracks, porosity, folds and incisions
Easy to use – applicable on site - sensitive to even apparently un-significant defects
Surface controls on non-porous materials
This kind of control is based on the deviation the magnetic field lines, as being induced in a ferromagnetic material, undergo at the presence of some discontinuity.
It is used in the control of welding, castings, etc.
Here below the technical details:
- Detectable Features:
Magnetic flow dispersed due to superficial or sub-superficial discontinuities such as: cracks, cavities and inclusions
Sensitive to both surface and sub-surface defects
Surface and sub-surface controls on all ferromagnetic materials