SL series Microcomputer controlled relaxation testing machin
Product name：SL series Microcomputer controlled relaxation testing machine
Product introduction
Microcomputer control relaxation testing machine is prestressed concrete steel wire and PC steel bar and steel strand relaxation testing new equipment. Using computer to control the test process, automatic data acquisition and automatic processing, reduce the labor intensity of the workers, increase the accuracy of the experiment, is the enterprise, Scientific Research Institute of the ideal test equipment. The device is configured with the appropriate attachments can also do other specimen tensile and compression tests.
operative norm
◆ GB/T5224-2003< steel strand for prestressed concrete
◆GB/T10120-1996< metal stress relaxation test.
Product main functions, features
1. The testing machine adopts a vertical structure, beam work station by a double column and constitute a tensile test space, power transmission mechanism (by AC servo motor, reducer, screw to form) is installed below the working in Taiwan, loading screw under driven to move under the movable jaw, in order to achieve the sample loading; force measuring sensor is installed on the beam and with the upper jaw connection. Testing machine with a very high stiffness, ensure the accuracy of the results of testing machine;2. The use of industrial control computer, high anti-interference performance, suitable for long-term work。
3. Based on Win7 platform computer special software to fully absorb the advanced experience of similar foreign products, according to the national standard GB/T5224-2003< prestressed concrete strand >, metal GB/T10120-1996< should stress relaxation test > the relevant requirements of the design, perfect in function:
3.1 with standard test procedures, press the shortcut key, test system can be in accordance with the standard requirements within 5 minutes will strand loading to breaking load of 70% or 80%, keep within 2 minutes automatically start recording test data, reached the set time automatically after the termination of the trial.
3.2 the correlation coefficient between the test curve and the theoretical curve is more than 99%, so the relaxation rate of the 1000 hour test data can be calculated by 72 hours, which can shorten the time of the actual experiment.
4. The testing machine adopts the steel wire special sensor, which has strong resistance to relaxation and creep. It is a long time stress zero drift, and the sensitivity coefficient can be guaranteed within the scope of the license.5. Steel strand anchorage with special material special process, long service life, reliable clamping。
technical parameter
| Model | SL-100 | SL-300 | |
| Rated test force | 100KN | 300KN | |
| Test force measurement range | 2-100% full unclassified | ||
| Test accuracy |
is better than ± 1% |
||
| Test resolution | 0.05%/FS | ||
| Speed adjustment range | 0 - 50mm/min | ||
| Initial loading method | automatically 70% or 80% breaking load breaking load | ||
| Uniform loading program | automatic loading, automatic record keeping 2min | ||
| Loading speed | 100-5000N/S set | ||
| Sample size(mm) | Φ4~Φ7 | Φ7~Φ13 | |
| Stroke tensile test | 0~200mm | ||
| Nominal tensile length | 800~1000mm | ||
| Displacement resolution | 0.01mm | ||
| Deformation measurement resolution | 0.01mm | ||
| Protection function | automatic shutdown exceeds the maximum test load 2%-5% | ||
| Host machine form | vertical double column structure and horizontal structure | ||
| Power | AC220V50Hz/3.0KW | ||
| Host size | 900*920*2900mm | ||
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