BAQ dynaROCK II, Руководство пользователя

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APPENDIX
Impact device type DC/D/DL D+15 C G
Surface
Roughness Ra / Rt
ISO Class
2 µm/10 µm
N7
2 µm/10 µm
N7
0.4 µm / 2.5
µm N5
7 µm / 30 µm
N9
Minimum weight of
the sample
For direct
measurement
> 5 kg > 5 kg > 1.5 kg > 15 kg
On stable underlay 2 - 5 kg 2 - 5 kg 0.5 - 1.5 kg 5 - 15 kg
Minimum thickness
of the surface
hardening
≥ 0.8 mm ≥ 0.8 mm ≥ 0.2 mm
Table 5 Requirements on the sample
D / DC / DL D+15 C G
At 300 HV, 30 HRC
Diameter/Depth
0.54mm/24µm 0.54mm/24µm 0.38mm/12µm 1.03mm/53µm
At 600 HV, 55 HRC
Diameter/Depth
0.45mm/17µm 0.45mm/17µm 0.32mm/8µm 0.90mm/41µm
At 800 HV, 63 HRC
Diameter/Depth
0.35mm/10µm 0.35mm/10µm 0.30mm/7µm
Table 6 Size of the impressions in case of different hardening and impact devices
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