The microcomputer controlled electronic testing machine is designed and manufactured according to standards such as GB/T16491-2008 "Electronic Testing Machines", GB/T2611-2007 "General Technical Requirements for Testing Machines", GB/T228-2010, as well as international standards such as ASTM and DIN. It is mainly used for the performance testing and analysis of mechanical materials for metal, non-metal, composite materials and products. The computer system controls the servo motor rotation through a fully digital controller and a speed control system. After deceleration by a deceleration system, the moving crossbeam is driven up and down by a precision ball screw pair to complete various mechanical performance tests such as tensile, compressive, bending, shear, etc. of the sample. In addition, different test attachments can be configured according to user requirements. This machine is widely used for material inspection and analysis in industries such as building materials, aerospace, machinery manufacturing, wires and cables, rubber and plastics, textiles, household appliances, etc. It is an ideal testing equipment for scientific research institutions, colleges and universities, industrial and mining enterprises, technical supervision, commercial inspection and arbitration departments.

1. Host

(1) The host adopts a high-strength portal frame structure, which has high strength and small deformation;

(2) Adopting high-precision ball screw for smooth transmission;

(3) The transmission part adopts circular arc tooth synchronous belt transmission, and there is no gap in both directions during the transmission process;

(4) Adopting AC servo motors and drive systems to ensure smooth transmission and stable torque, with protection devices for overcurrent, overvoltage, overload, etc;

(5) The fixture is specially designed, firmly clamped, easy to operate, and without any slipping of the jaws;

(6) The special process ensures the coaxiality of the testing machine, which effectively reduces the impact of irregular samples on the sensor.

2. Control system

The STC8800 fully digital closed-loop measurement and control system has many advanced features and technological innovations, mainly reflected in:

1. Four closed-loop controls have been implemented for testing force, specimen deformation, beam displacement, and testing process;

2. The data acquisition system consists of 4 high-precision 24 bit A/D conversion channels. Resolution up to 1/500000, no grading throughout the entire process;

3. Using original integrated components such as BB, AD, Xilinx, etc., with fully digital design;

4. Compliant with PCI bus standard, automatically recognized and installed by microcomputer, achieving "plug and test";

5. The electronic measurement system does not have analog components such as potentiometers, ensuring interchangeability and facilitating maintenance and replacement.

Main technical indicators

Test host:

1. Large test force: 10KN; 20KN; 50KN；100KN,； 200kN ； 300KN

2. Accuracy level of testing machine: 0.5 level;

3. Test force measurement range: 0.4% - FS (full range without grading);

4. Relative error of test force indication: better than ± 0.5%;

5. Experimental resolution: 1/± 500000 of the large experimental force (with constant resolution throughout the entire process);

6. Deformation measurement accuracy: ± 0.5%;

7. Deformation measurement range: 0.2% - FS;

8. Deformation resolution: 1/± 300000 for large deformations;

9. The test speed is continuously adjustable, with an adjustment range of 0.005-500mm/min;

10. The return speed of the crossbeam shall not be less than 500mm/min

11. The movement speed of the crossbeam can be continuously and arbitrarily adjusted, and the loading speed can be switched during the experiment.

12. Relative error of displacement indication: within ± 0.5% of the indication;

13. Displacement resolution: 0.025 µ m;

14. Constant force, constant deformation, and constant displacement control range: 0.5% - FS;

15. Constant force, constant deformation, and constant displacement control accuracy: When the set value is less than 10% FS, it is within ± 1% of the set value; When the set value is ≥ 10% FS, it is within ± 0.1% of the set value;

16. Effective experimental space: 600mm;

17. Effective test width: 560mm;

18. Power supply: 380V ± 10%, 1.5KW.

Split type high-temperature heating furnace

1. High temperature: 1200 ℃

2. Temperature accuracy: ± 0.2 ℃

3. Made of high-quality 304 stainless steel

4. Furnace size: φ 100 × 350mm

5. External dimensions: φ 300 × 450mm

6. Heating power: 380V ± 10%, 4KW