New Developed Technology and Application of DC-Pulse Technology for MT Testing and Demagnetization of Steel Components

摘要

HPT Hirsch Pruftechnik GmbH in Zweibrucken supplies small low weight and mobile DCpulse MT testing devices with a DC power peek up to 30.000 A (picture 2) in combination with an equipment carrier (picture 3) for surface crack detection and demagnetization of steel components. Magnetic connectors with high adhesive force are in use to attach the cables at the part under test. An UV-lamp illuminates the surface and provides some greenish crack indications. The measuring device for current-, magnetically field strength- and residual magnetically field strength needed to make sure that testing carried out properly.