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Help CenterDWTT 20000J Pipeline Steel Drop Ball Impact Testing Machine Pipeline Steel Drop Ball Impact Tester
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DWTT 50000J Pipeline Steel drop ball impact testing machine
1. Application:
The drop hammer impact test machine is mainly used for drop weight tear test of
pipeline and middle, thick steel ferritic steel, namely DWTT test. The test machine intergrating mechanical, electrical, automatic control technology to one, and to achieve fully automated process of feeding, lifting hammer, impact, fracture specimen collection, grab the hammer. In addition, this test machine has multi-channel protection measures, greatly improve the safety of operating personnel and equipment use. It is commonly used test equipment by the pipeline manufacturer, large steel mills, Iron and Steel Institute and other enterprises and research institutes.
2. Implementation Of Standards: drop hammer impact test machine
GB/T 8363-2007 "ferritic steel drop weight tear test method"
ASTM E436-03 "Standard Test Method for Drop-Weight Tear Tests of Ferritic Steels"
API RP*5L3-96 "Conducting Drop-Weight Tear Tests on Line Pipe"
3. Main Technical Parameter: drop hammer impact test machine
|
Model |
DWTT-20000/30000 |
DWTT-40000 |
DWTT-50000 |
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|
Max impact energy(J) |
20000/30000 |
40000 |
50000 |
||
|
Min impact energy(J) |
8000 |
10000 |
15000 |
||
|
Main hammer body quality(Kg) |
630 |
630 |
800 |
1180 |
|
|
Main hammer body quality error |
±1% |
||||
|
Weight quality(Kg) |
/ |
30kg |
30kg |
30kg |
|
|
Weight number |
/ |
13 |
22 |
26 |
|
|
Weight quality error |
|
||||
|
Total hammer body quality (Kg) |
630 |
1020 |
1460 |
1960 |
|
|
Impact height (mm) |
1275~2800 |
1275~2600 |
1275~2600 |
||
|
Impact speed (m/s) |
5~7.67 |
5~7.14 |
5~7.41 |
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|
Height measure resolution (mm) |
0.1 |
||||
|
Height measure error |
≤±5 |
||||
|
Hammer blade hardness |
HRC58~62 |
||||
|
Hammer blade radius of curvature (mm) |
R25±0.1 |
||||
|
Bearing hardness |
HRC58~62 |
||||
|
Support radius of curvature(mm) |
R15±0.1,R20±0.1 |
||||
|
Hammer blade center and bearing center deviation(mm) |
≤±1.5 |
||||
|
Span of sampel supports(mm) |
254±1.5 |
||||
|
Sample specifications(mm) |
(305±5)×(76.2±1.5)×(3~40) |
||||
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