Application
This series computer Control Electro-hydraulic Servo Fatigue Testing Machine is mainly used to detect a variety of metals, non-metallic materials and small movable member, the static mechanical properties test. It can do tensile, compression, bending, low cycle and high cycle fatigue, crack growth, fracture mechanics test under sine, triangle, square wave, trapezoidal wave, random wave, combination waveform.
This Test machine is flexible, moving beam down, locking the sample holder by button operations, the use of advanced hydraulic servo drive technology loaded, high precision and high resolution dynamic load sensor magnetostrictive displacement sensor specimens force values and displacement.
Fully digital measurement and control system implementation force, displacement, deformation closed loop control, Software powerful data processing capabilities, test conditions and test results are automatically saved, displayed and printed. Fully integrated into the computer-controlled test procedure, the test machine is a research institutes, metallurgy building, defense industry, universities, machinery manufacturing, transportation and other industries ideal cost-effective test systems.
Standards
GB / T2611-2007 《Tester General technical requirements》
GB / T16826-2008 《Hydraulic servo universal testing machine》
GB 3075 《Axial fatigue testing metal》
JB / T9379-2002 《Tension and compression fatigue test machine technical conditions》
GB / T228-2010 《Metallic materials at room temperature tensile test method 》
HB5287 Axial Loading Fatigue Test Method for Metal Materials
EN10002 Tensile Test of Metallic Materials
JJG 556-2011 Axial Force Fatigue Testing Machine
HG／T 2067-1991 Technical specifications for rubber fatigue testing machine
ASTM E399－09 Metallic materials Kic standard test for linear elastic plane strain fracture toughness
ASTM E1820 2001 test standard for measuring fracture toughness
Specifications
|
Model |
KASON 311.50 |
|
Force capacity |
500kN |
|
Load range |
2%-100%FS |
|
Testing machine accuracy |
Static indication accuracy: ±0.5% Dynamic loading accuracy: ±1% |
|
Actuator dynamic stroke |
150mm |
|
Displacement measuring range |
0～150mm(±75mm) |
|
Displacement measurement resolution |
0.001mm |
|
Deformation indication relative error |
±0.5% |
|
Force coaxiality |
≤5% |
|
Frequency Range |
0.01-20HZ (50Hz optional) |
|
Effective distance between columns |
762×310mm |
|
Maximum test space |
1200mm (exclude hydraulic clamps) |
|
Main test waveforms |
Sine wave, square wave, triangle wave, ramp wave, random waveform and external input waveform; can realize multiple sine wave forms with different frequency or amplitude combinations; random wave forms with user-defined parameters; user-imported custom wave forms |
|
Test control method |
Load, displacement, deformation control method |
|
Servo pump station specifications |
Flow 100L/min, 21Mpa |
|
Power supply |
AC 380V± 10%, 50Hz |
5.2 Servo actuator
Maximum test force: ±550KN
Maximum stroke: ±75mm (total stroke 150mm);
Special dynamic servo actuator for dynamic and static test;
Double-out rod, the surface of the piston rod is treated with special technology, and special technology is adopted for high-quality finish treatment, which is suitable for long-term dynamic test;
The high-speed sealing element (German Trelleborg Servo Glyd ring, Sterling) is used to seal between the piston and the cylinder body, the piston rod and the end cover. And choose high-speed wear-resistant support ring (German Trelleborg) support, which makes the actuator rigid,
Strong anti-direction finding ability;
The actuator has built-in displacement sensor, external electro-hydraulic servo valve and force sensor, with two closed-loop control loops of force and displacement;
The force sensor is placed on the head of the piston rod, and the prestressing ring is installed and configured, which can fully ensure the safety and reliability of the connection during the dynamic test;
Hydraulic servo pump station and electrical control system
Sheet metal closed frame structure with sound insulation design;Ø
Total flow 100L/min, pressure 21Mpa.
The pump station uses a silent variable piston pump from Germany Rexroth Company , which is immersed in the hydraulic medium together with a special liquid-immersed motor imported from Italy. It can automatically adjust the hydraulic flow according to the system flow demand, while reducing noise and avoiding vacuuming at low temperatures. Protect and extend equipment life. When the hydraulic power source is working at full load, the audible noise at a distance of 1 meter does not exceed 65 decibels, which meets the on-site requirements of the laboratory and does not require a separate sound insulation device or oil source room.
Test software function introduction
- Fatigue test (low cycle fatigue, high cycle fatigue)
- Stress control,Strain Control,Constant amplitude fatigue,Amplitude fatigue,Frequency conversion fatigue
- Simulate the measured waveform,Random waveforms and external input waveforms; random waveforms with user-defined parameters; custom waveforms imported by users;
- Multiple sine waveforms with different frequencies or amplitude combinations;
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