1. Main functions and features:
The testing machine uses a microcomputer to control a high-precision electro-hydraulic servo valve, drive a hydraulic cylinder, and automatically control the test force, displacement, and deformation in multiple modes to complete the tensile, compression, bending and bending test of the sample, which conforms to the country Standard GB / 228-2002 "Metal Material Tensile Test Method".
Independent hydraulic clamping system, using imported hydraulic pump unit and original hydraulic valve,
Ensure that the system runs smoothly with low noise, and the sample is firmly clamped during the test and does not slip.
The independent hydraulic servo loading system adopts the original imported hydraulic pump unit and original hydraulic valve, high-precision wide-band electro-hydraulic servo valve to ensure the system is highly precise, efficient, low noise and fast response.
Use brand microcomputer to complete the setting of test parameters and control of the test process during the test
Control, data collection, processing, analysis, storage and display (test data includes: upper and lower yield points,
Tensile strength, breaking strength, elastic modulus, elongation at each point, δ0.2, etc.), also has the function of test curve traversal, local enlargement, manual processing.
Equipped with Chinese Windows test machine special software, measure the performance parameters of each material according to national standards and user-provided standards, and perform statistics and processing on the test data, and then output and print various required test curves and test reports.
Self-built strong test database, test data can be saved, queried and called at any time, and data sharing can be achieved through networking.
4 levels of test force measurement, automatic switching, accurate, stable and reliable.
Fully automatic control of test force, stroke, stress, strain rate, to achieve a variety of materials
Tensile, compression and bending test.
Powerful self-check function and perfect protection function.
Second, the main technical indicators:
1. Maximum test force: 300kN;
2. Measuring range and accuracy of test force:
0-300kN; 0-150kN; 0-60kN; 0-30kN; level 4; test force accuracy: better than ± 1% (from 20% of each full scale)
3. Deformation measurement range and accuracy: points 1; 2; 5; 10 four-stage measurement; ± 0.5% FS.
4. Displacement measurement range and accuracy: 250mm; ± 1%
5. Maximum distance between stretching jaws (including piston stroke): 600mm. (Original machine index)
6. Clamping diameter of round sample: Ф13-40mm, (original machine index)
7. Flat specimen clamping width and thickness: 70mm; 0-30mm (original machine index)
8. The maximum stroke of the piston: 250mm (the original machine index remains unchanged)
9. Maximum drawing speed: 100mm
10. Test space adjustment speed: (the original machine index remains unchanged)
11. Main machine size (length x width x height including piston stroke mm) (the original machine index remains unchanged)
12.Console size (length x width x height mm): 700x800x1600.
13. Main hydraulic source size (length x width x height mm) 500x500x700
14. Clamping hydraulic source size (length x width x height mm) 500x500x700.
15. Part of the technical parameters of the computer:
〈1〉, Test force measurement part
(1). Measuring method adopts high-precision pressure sensor to measure test force
(2). Range conversion method Automatic
(3). Test force display mode Microcomputer screen display
(4). Test force range and accuracy:
0-300kN; 0-150kN; 0-60kN; 0-30kN; level 4; test force accuracy: better than ± 1% (from 20% of each full scale)
〈2〉 〠Deformation measurement part
(1). Measuring method Adopt high-precision extensometer to measure sample deformation
(2). Range conversion method Automatic
(3). Deformation display mode Microcomputer screen
(4). Deformation range and accuracy: 4 levels of measurement; better than 0.5FS%
〈3〉 〠Displacement measurement display device
(1). Measuring method adopts high-precision photoelectric encoder to measure piston displacement
(2). Deformation display mode Microcomputer screen
〈4〉 Automatic control part
(1). Control method Microcomputer control
(2). Automatic control valve Imported high-precision high-frequency wide-band electro-hydraulic servo valve
(3). Control mode
a. Constant rate piston stroke control
Constant speed setting range: 0.5-50mm / min
Control range: Piston set to zero point-the maximum point of piston stroke
b. Constant rate test force control
Speed ​​setting range: 0.1-2.0 full scale / min
Control range: 5-100% full scale
c. Constant rate strain control
Speed ​​setting range: 0.1
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