Alpine pasture intensity
The alpine intensity measurement is a way of comparing two blasting processes. For this purpose, the deformation that the blasting process causes in a defined sample is determined. Various influences are recorded in the intensity measured in this way, including the hardness and shape of the abrasive, the angle of incidence, the kinetic energy of the abrasive and any disabilities.
construction
An Almen test strip of spring steel is clamped firmly on a Prüfstreifenhalter by means of four bolts and for a predetermined duration or for a predetermined number of cycles with spherical blasting medium irradiated ( shot-peened ). The deflection of the measuring strip is then measured on an Almen dial gauge. This process is repeated with blasting times or cycles of different lengths and the measured values are displayed in a curve. The saturation point is defined as the deflection, which only increases by less than 10% when the beam duration is doubled. At this point, the Almen intensity in mm of deflection is determined and related to the Almen strips used (example: 0.2 mmA). There are three different test strips available (N, A, C).
Thickness of the test strips: N = 0.79 mm A = 1.29 mm C = 2.39 mm
