BAQ kaloMAX NT II
Manual
4.1 Analysis by surface profiler
For an analysis by a surface profiler (determination
of the depth of the wear crater), the scan should be
taken at right angle to the grinding direction and
along the centre line (deepest point of the wear
crater). See figure.
4.2 Calculation of the wear coefficient
For the calculation of the wear volume, an ideal spherical cap is assumed. The crater
i.e. wear volume (Vv) can be calculated as follows:
h)
-
r
(3
h
3
=
v
2
V
where:
V
v
= Wear volume [m
3
]
h
= Crater depth [m]
r
= Ball radius [m]
Then the wear coefficient (
Vr)
can be determined:
V
r
=
Wear volume
Sliding distance
∗
Bearing strength
The grinding path (s) can be calculated from the periphery of the ball and the number
of ball revolutions n.
n
r
2
=
s
Page 13
( 1 )
( 2 )
( 3 )
Drawing 1: Analysis of a wear
crater by a surface profiler
Wear
crater
Grinding
direction
Stylus
