2.2 D type impact device
2.3 Type of Impact Devices
2.4 Impact Devices Specification:
Special Impact
Device
D/DC/DL D+15
C
G
E
Impact Energy
11mJ
11mJ
11mJ
11mJ
11mJ
Mass of Impact Body
5.5g/7.2g 7.8g
3.0g
20.0g
5.5g
Test Tip Hardness
1600HV
1600HV
1600HV
1600HV
5000HV
Test Tip Diameter
3mm
3mm
3mm
5mm
3mm
Test Tip Material
Tungsten
carbide
Tungsten
carbide
Tungsten
carbide
Tungsten
carbide
Tungsten
carbide
Impact Device Diameter 20mm
20mm
20mm
30mm
20mm
Impact Device Length
86/147/75mm 162mm
141mm
254mm
155mm
Impact Device Weight
50g
80g
75g
250g
80g
Max. Hardness of Sample 940HV
940HV
1000HV
650HV
1200HV
Average surface roughness
Ra:
1.6μm
1.6μm
0.4μm
6.3μm
1.6μm
Min. Weight of Sample:
Of compact shape
On solid support
Coupled on plate
>5kg
2~5kg
0.05~2kg
>5kg
2~5kg
0.05~2kg
>1.5kg
0.5~1.5k
g
0.02~0.5
kg
>15kg
5~15kg
0.5~5kg
>5kg
2~5kg
0.05~2kg
Min. thickness of sample: 5mm
5mm
1mm
10mm
5mm
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