Multifunctional Machines Falling Weight Drop Hammer Impact Test Equipment With High Quality
Multifunctional Machines Falling Weight Drop Hammer Impact Test Equipment With High Quality
1. Function summary
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 .
2 Relevant standards
GB 8363-2007 "drop weight tear Test method for Ferritic Steel"
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 Technical parameter
The equipment parameters are shown in below table
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 | |||||
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