HARDNESS CHECKED WITHOUT MANHANDLING
Brinell hardness tests are prefabricated on the hub at points nearby the firtree supplement for the turbine blades.
When the saucer has been selected, the grouping positively locates the hub beneath the look mounted indenter.
A primary grouping from Indentec enables the hardnesses of large, onerous turbine hubs to be observed apace and repeatedly with bottom drill direction Designed for hubs upto 1000mm in diam and consideration 30kg and more, the grouping consists of a threefold bit digital inquirer fitted with a Y inclose plateau that crapper be keyed to provide steady threesome saucer hold to apiece hub during testing
After the test, the indenter is retracted so that the ikon of the notion crapper be transmitted by a immobile broad partitioning camera to a monitor, where the diam is rhythmic to found the hardness.
A primary grouping enables the hardnesses of large, onerous turbine hubs to be observed apace and repeatedly with bottom drill handling.
The grouping uses Brinell investigating with a 1mm diam ball and 30 kgf effort alluviation because the impact minimizes the venture of momentous pronounce points near to the firtree fixings.
However, it crapper also be engaged for Vickers investigating using a parcel indenter and registering the notion on the aforementioned monitor.
The datum is then downloaded to a machine along with attendant data.