HAST Unsaturated High Pressure Accelerated Aging Tester

Introduction:

Electrical control system

1. Equipped with AC servo motor and driver, the performance is stable, speed ratio can reach 1:10000.

2. Protection:overload, over speed, lower voltage, over current, e-stop and so on.

3. Built in Direct1TM controller. Digital circuit diagram.

4. Circuit system strictly designed according to national standard.

Test software

1. Operation environment

To ensure a clear and fluent operation of the software, the system shall be Windows98/200/XP, screen resolution shall be 1027*768.

2. Sampling frequency

The frequency range is 1~50 sample points/s. 15 points/s is defaulted.

For the material with obvious yield phenomenon, the computer software can automatically distinguish and enter the high-speed sampling stage (100 points / second) when entering the yield phase, and the sampling rate returns to the normal rate after entering the strengthening phase.

3. Automatic zero adjustment, automatic calibration, storage calibration and other functions.

4. Program-controlled intelligent expert system: up to 20 steps for automatic control

5. Administration

 Authority management:

Management: all functions are open to this level, including modifications to torque and twist angle calibration factors.

Users: Only can use the test operation. User’s level is default setting.

6. Convenient operation panel

Operation, control, test curves, real-time test are all showed in the main interface for a direct observation;

Test curves:Show torque-twist angle, torque-time, angle-time in the real time. (the data is optional);

All curve can change coordinate;

7. Safe protection

To improve the safety of the test, the machine indicates when it is in error.

8.Control

For a better observation of cold-hardening and verification of Hooke’s law, the ‘Stop’, ‘Unload’, ‘Reload’ functions are added during manual test;

The torsion speed of the test process changes automatically according to the set program. You can also manually change the speed of the test;

There’s a button saying ‘remove the torsion meter’ on the software operation panel, the torsion meter can be removed during test while no influence to  the test result.

9.Data analysis and processing

The software can calculate the torsional properties specified in the standard: shear modulus G, specified non-proportional torsional strength τ _P0.015 and τ _P0.3, upper torsional yield strength τ _Su, torsional yield strength τ _Sl, torsional strength τ _b, maximum non-proportional shear strain γ _max.