Electro-hydraulic Servo Steel Pipe Bending Fatigue Test Bench
Contact Info
- Add:西安市雁塔區(qū)科技路18號(hào)新科大廈B座, Zip: 710065
- Contact: 閆女士
- Tel:029-81881562
- Email:xs@letry.com.cn
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The bending test is primarily used to determine the bending strength of brittle and low-plasticity materials (such as cast iron, high-carbon steel, tool steel, etc.) and can reflect the deflection as a plasticity indicator. The bending test can also be used to inspect the surface quality of materials. The bending test is conducted on a universal testing machine, with two loading methods: three-point bending and four-point bending.
This electro-hydraulic servo steel pipe bending fatigue test bench is mainly used for continuous pipe bending fatigue tests, measuring the fatigue cycles of hollow pipes under internal pressure and bending conditions. It also measures the relationship between hollow pipes and their corresponding parameters (such as outer diameter, expansion diameter, etc.), and obtains the relationship between the failure cycles of hollow pipes and internal pressure, as well as the relationship between the failure cycles of hollow pipes and outer diameter, expansion diameter, etc.
Technical Specifications:
No. | Item | Specification | Remarks |
1 | Applicable Hollow Pipe Size Range | Outer Diameter Range: (25.4～88.9) mm Wall Thickness Range: (2.1～7.6) mm | |
2 | Applicable Hollow Pipe Mechanical Properties: | Yield Strength ≥ 785 MPa; Tensile Strength ≥ 793 MPa; | |
3 | Bending Template Radius Used in Test Bench | 2 types: 1219.2 mm (48 in) and 1828.8 mm (72 in); | |
4 | Maximum Test Load (kN) | Dynamic ±150; Static ±150 | Axial Cylinder |
5 | Frequency Range (Hz) | 0.01～2.0, continuously adjustable. | |
6 | Resolution (Hz) | 0.001 | |
7 | Test Waveform | Sine wave, square wave, triangular wave, ramp wave, combined wave | |
8 | Static Load Accuracy | Better than ±1% | |
9 | Dynamic Average Load Fluctuation | ≤±1% F.S | |
10 | Dynamic Load Amplitude Fluctuation | ≤±2% F.S | Axial Cylinder |
11 | Displacement Sensor Stroke (mm) | ±175 | Axial Cylinder |
12 | Displacement Accuracy | ±1% | Axial Cylinder |
13 | Booster Pressure Ratio | 1:3.5 | |
14 | Continuous Pipe Test Internal Pressure Range: (MPa) | 0-70 MPa, continuously adjustable | Booster |
15 | Internal Pressure Measurement Accuracy | ≤±1% F.S | Booster |
16 | Diameter Measurement Accuracy | ≤0.1 mm | Displacement Sensor |
17 | Test Bench Main Unit Dimensions (mm) | L×W×H=2060×1000×1890 | |
18 | Servo Hydraulic Source | Flow: 63 L/min Pressure: 21 MPa; Filtration Accuracy: 5 μm | |
19 | Controller Dynamic Acquisition Rate | All channels synchronously feedback acquisition at 5 kHz rate; | |
20 | Servo Hydraulic Source Dimensions (mm) | L×W×H=1640×1000×1150 | |
21 | Equipped Power Supply | AC 380 V, 50 Hz, 30 kW; AC 220 V, 50 Hz, 2 kW; |
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| Brand: | 西安力創(chuàng) |
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| Origin: | China / Shaanxi / Xianshi |
