LEW-B series Computer screen display steel wire test machine
Product Name: LEW-B series computer screen display steel wire test machine
Product Description
this series of products is mainly used for the test of mechanical properties of steel strand, etc., the models for cylinder, double space frame structure, tension and compression spacing can be adjusted automatically, automatic hydraulic clamp, set manual control. Control unit are completed by the hydraulic system, the experimental data by computer acquisition and analysis, random access, and can realize the analysis of the data and curves of the, local amplification and data test environment, test conditions to edit, can automatically calculate the index of mechanical properties of materials, and print out the complete test report and curve. The other is equipped with large scale from electronic extensometer gauge and steel strand special lengthening jaw to ensure the sample fracture.
Technical description
1. this series of products fully meet the requirements of GB/T5224-2003< prestressed concrete with steel strand > and other standards.
2. control system:
A. adopt high precision amplifier and 24 bit high precision A / D converter, effective code + 120000, test force measurement resolution reaches 1/120000, measurement range of continuous measurement is not divided into stalls, measurement accuracy is better than 1 level.
B. The displacement measurement resolution of testing machine is 0.0025mm, which is used to measure and control the displacement of piston;
C. The deformation measurement resolution of testing machine is up to 0.00025mm, which is used to measure and control the deformation of the gauge of the sample;
D. in order to manually control the process of testing, the completion of the test machine test data screen display, the user can according to their own needs to design the compound control mode of the test machine;
E. measurement and control system software can work under the Win7 operating system, using standard database management test data, and can provide network data interface,
F. a test, peak, the specimen deformation, piston displacement, test curve of the screen display function; real time display test curve, arbitrary choice coordinates of the display, such as: should stress-strain and load deformation and load displacement, load time, displacement time variable time - shaped, and can display the three curves simultaneously in a page, the curve can be magnified.
G. to determination of the tensile strength of steel strand, the specified non proportional extension strength, elastic modulus, elongation and other mechanical properties parameters, and accordingly the print results. According to the requirements of the print different contents of reports and curves. Using open excel report form, convenient user management; to test the value of original records, reported values according to the requirements of the standard GB/T228 rounding;
3. applicable standards and data processing:
A. users can customize the data processing software that meets the requirements of the national standard or other standards;
B. test process can simulate the reproduction and re analysis of the test data.
| type specification | LEW－300B | LEW－600B | LEW－1000B | |
| maximum testing machine（kN） | 300 | 600 | 1000 | |
| Maximum allowable value of the relative error of indicating value | ±1% | |||
| Range of testing force measurement(kN) | 1%—100% | |||
| Maximum tensile space(mm) | 1000 | 1000 | 1000 | |
| Maximum compression space(mm) | 600 | 600 | 520 | |
| Steel strand clamping diameter(mm) | 15.20mm（Other specifications will be equipped） | |||
| Two side strut spacing(mm) | 450 | 450 | 560 | |
| total power(kW) | 2 | 2.1 | 2.1 | |
| external dimensions (mm)(L×W×H) | main engine | 940×630×3000 | 940×630×3000 |
920×610× 3200 |
| cosole desk | 1100×600×860 | |||
| net weight(kg) | 2200 | 2200 | 3100 | |