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fifteen billion six hundred and twenty-one million eight hundred and seventy-eight thousand nine hundred and thirty-five

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Current location: homepage > Product Center > Low temperature tank impact test > Drop weight impact testing machine >Drop weight tear impact testing machine
 Drop weight tear impact testing machine

Drop weight tear impact testing machine

Product brand: Drop weight impact testing machine

Classification: drop weight impact testing machine

Drop weight impact testing machine, drop weight testing machine, is suitable for all kinds of ferrite steel, especially for all kinds of pipeline steel. According to GB / t8363-2007 and ASTM E436. The main engine adopts four support column type stable structure, good rigidity and double sliding guide rail

  • Hotline: fifteen billion six hundred and twenty-one million eight hundred and seventy-eight thousand nine hundred and thirty-five
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1、 Product overview:
DWTT series drop weight tear impact testing machine is suitable for all kinds of ferritic steel, especially pipeline steel. According to GB / t8363-2007 and ASTM E436. The main engine of the drop weight tear testing machine adopts a stable structure with four supporting columns, good rigidity, double sliding guide rails, automatic sample sending mechanism, positioning mechanism, anti dumping mechanism, safety mechanism, hydraulic buffer device, sample recovery device and safety protection device. The preset impact energy can be adjusted by controlling the lifting height of drop hammer and adjusting the number of counterweights. According to the operation control mode and measurement display, the series of drop weight tear testing machines are divided into two types: Digital drop weight tear impact testing machine and instrumented drop weight tear impact testing machine.
The digital display drop weight tearing impact tester is controlled by single chip microcomputer, operated by touch screen and key; it can display and control lifting height, preset and display the maximum impact energy.
The instrumented drop weight tear impact testing machine is a microcomputer controlled type, which can collect and analyze the test data
2、 Performance features:
a. Measure and control the lifting height of drop hammer: test accuracy ± 1 mm, control accuracy ± 5 mm;
b. Measurement of impact velocity: measure the maximum impact velocity before the impact of falling hammer;
c. Measuring load: the load during the process of drop hammer impact, and mapping the load time waveform;
d. Data acquisition and storage: the imported data acquisition card with high performance and high sampling rate ensures enough sampling points in a short impact process to ensure the authenticity of energy change curve;
e. Software analysis: powerful software analysis function, providing various data processing results: preset energy, impact energy, absorbed energy, impact speed, impact time, maximum load, energy at maximum load, time at maximum load, deformation at maximum load, load time waveform, energy time waveform, and can automatically generate test reports, including various tests Results and sample size, brand, number, temperature, environmental temperature and humidity.
3、 Applicable standards:
GB / t8363-87 "drop weight tear test method for ferritic steels", namely DWTT Test method
ASTM e604-83 dynamic tearing test method for metallic materials
GB / t2611 general technical requirements for testing machines
SY / 16476-2000 "drop weight tear test method for steel conveying pipes"
API 5L3 American Petroleum Institute recommended method
ASTM e436-80 standard method for drop weight tear test of ferritic steels
Main parameters:
Specification and model DWTT-20000 DWTT-30000 DWTT-40000 DWTT-50000
Maximum impact energy 20000J 30000J 40000J 50000J
Maximum lifting height 2500mm
Installation height of main engine ≤5.8m
Impact velocity ≥5m/s
Bearing span 254+1.5mm
Radius of curvature of drop hammer R25.4±2.5mm
Radius of curvature of support jaw R14.3±1.59mm
Deviation between center line of falling hammer blade and center of support span ±1mm
Rockwell hardness of bearing surface of hammer blade and support jaw ≥HRC55
Sample specification 300×70×(6-32)mm
Outline dimension of testing machine About 1600 × 2300 × 5500mm

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