300kN Ribbed Steel Relaxation Testing Machine
The GS-series relaxation testing machine is mainly used to test the tensile stress relaxation properties of prestressed steel wires, ribbed steel bars, PC steel rods and steel strands, and rebars at room temperature. It is suitable for highway bridges, construction projects, metrological quality inspection, and scientific research. Laboratory, metallurgical, steel and other related industries conduct testing and testing of materials.
Description
Reviews
Features
Draw the relationship curve between remaining test force and time, and the change curve between temperature and time in real time;
The stress relaxation performance of the specimen for 1000 hours can be calculated. The calculation method has double logarithmic and single logarithmic options. The calculated data has all data and data options corresponding to characteristic time points;
With arbitrary setting of loading rate;
It has constant load and constant displacement control functions;
It can automatically calculate the stress relaxation properties of the test piece (such as stress relaxation rate, relaxation stress, relaxation rate, etc.) and print out a complete test report and test curve;
It can realize digital calibration of load quickly and accurately, and has overload protection function.
Specifications
| Model | GS-300 | GS-500/600 |
| Maximum test force | 300kN | 500/600kN |
| Force measurement range | 1%～100%FS (full scale) | |
| Test force indication accuracy | Better than ±1% of the indication value (precision level can reach ±0.5%) | |
| force resolution | ±500000 codes, no binning in the whole process, the resolution remains unchanged | |
| Deformation measurement error | ±1% | |
| Deformation range | 0.2～100FS | |
| Deformation measurement resolution | 0.001mm | |
| Gauge length of steel strand relaxation deformation | 1200mm | 1400mm |
| Steel strand gauge length | The nominal diameter of the steel strand is 60 times, and the nominal diameter of the steel wire is 200 times. | |
| Relax screw travel | 0～200mm | |
| Screw movement adjustment speed | 0.001～50mm/min | |
| Effective test space for relaxation test | 2000mm | |
| Stress Relaxation Test Procedure | Full digital closed loop, automatic loading, holding, and recording at a constant speed | |
| Nominal diameter of steel strand (mm) | ￠9.50/￠11.10/￠12.70/￠15.24 | ￠15.24/￠18.00/￠21.80 |
| Stress Relaxation Test Extension | Prestressed steel wires, prestressed steel bars, and metal material stress relaxation tests | |
| Load frame type | Horizontal four-column, high rigidity, high stability, no vibration and impact, streamlined shape | |
| voltage | 380V±10 50Hz (must be reliably grounded) | |
Company Profile
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