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Computer Control Drop Weight Tear Impact Testing Machine
Application:
DWTT drop weight impact testing machine is mainly used in the drop weight tear test of pipeline steel and ferrite steel plate. The fracture morphology of ferrite steel in the temperature range from brittleness to toughness is observed. The test method of this equipment is to elevate the hammer of a certain mass to a certain height, then release it from rest, and impact the free fall of the hammer on the sample, which will tear the specimen. The equipment integrates the technology of machine, electricity and automatic control, realizes the whole automatic process of feeding, lifting hammer, impact, fracture sample collection and grasping hammer, in addition, the testing machine is equipped with multi-channel protection measures. Greatly improved the using safety of operators and equipment .
Standard:
GB 8363-2007 "drop weight tear Test method for Ferritic Steel"
ASTM E436-03
API RP*5L3-96
Technical parameters:
Model | DWTT- 10000 | DWTT- 20000 | DWTT- 30000 | DWTT- 40000 | DWTT- 50000 | DWTT- 100000 |
Max impact energy (J) | 10000 | 20000 | 30000 | 40000 | 50000 | 100000 |
Mass error of main hammer | ±1% | |||||
Mass error of weight | ±0.5% | |||||
Total hammer mass((kg) | 12500 | |||||
Minimum impact height(mm) | 1275 | |||||
Maximum impact height(mm) | 3400 | |||||
Impact speed(m/s) | 5~9 | |||||
Lifting hammer speed(m/min) | about 4 | |||||
Height measurement error(mm) | ≤±10 | |||||
Hammer edge hardness | HRC58~62 | |||||
Radius of curvature of hammer edge(mm) | R25±0.1 | |||||
Bearing hardness | HRC58~62 | |||||
Support curvature radius(mm) | R15.5±0.1mm | |||||
Deviation between the hammer edge center and the bearing center(mm) | ≤±1.5mm | |||||
Specimen support span(mm) | 254±1.5mm | |||||
Specimen specification(mm) | (305±5)×(76.2±1.5)×(3~40)mm | |||||
Mainframe power supply | Three-phase five-wire 380V±10% 20A 50Hz | |||||
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