| 摘要 |
Equipment for detection of defects in rotary ferromagnetic metal objects by means of a powder method comprising a magnetising section (1) with magnetising coils (3, 4) for radial and axial magnetisation, and demagnetisation of the tested object (12), optical system (7) for visualisation of its surface and subsurface defects and manipulator (8) of the tested object (12). There is at least one main fixed magnetising coil (3) for radial magnetisation without any moveable parts arranged outside the perimeter of the tested rotary object (12), and at least two fixed auxiliary lateral air-core magnetising coils (4) for axial magnetisation where the magnetising section (1) is followed by section (3) of defect detection in a tested rotary object (12) by means of integrated luminous sources (10), e.g. CCD cameras or LED matrix sources in the ultraviolet part of the spectrum, or visually. |
