Ring stiffness testing machine/Electornic universal testing machine
WDW-H series microcomputer control ring stiffness testing machine
adopts mechanical loading, electronic measurement, digital
continuous speed regulation, and real-time control by computer.
This machine carries on the digital display to the test force, the
displacement / the speed simultaneously, and has the test force
peak value retention function.Suitable for plastic pipe girth
flexibility, ring stiffness, flat, weld tensile, pipe creep ratio.
Industrial and mining enterprises, scientific research institutes,
colleges and universities, commodity inspection arbitration,
technical supervision and other departments of the ideal testing
equipment.
Working principle:
The ring stiffness is determined by the measured force and
deformation value of the pipe at constant speed deformation.The
compression speed of the plate is determined according to the
diameter of the pipe, and the pressure is applied to the specimen
in the vertical direction of two parallel plates.A reaction force
is generated during deformation, and the ring stiffness is
calculated by using the force value of 0.03 di in the direction of
the diameter of the tube specimen.
- Main technical parameters
| Maximum test force | 50KN |
| Class of accuracy | 0.5 |
| Test Force Measurement Range | 1%～100%FS |
| Error in indication of test force | Within ±0.5% of the indication value |
| Resolution of test forces | 1/300000 |
| Range of deformation measurements | 2%～100%FS |
| Deformation indication error | Within ± 0.5% of indication |
| Deformation resolution | Maximum deformation 1/300000 |
| Error of displacement indication | Within ± 0.5% of indication |
| Displacement resolution | 0.001mm |
| Force-controlled rate regulation range | 0.005～5%FS/s |
| Precision of Force Control Rate Control | Speed ＜0.05%FS/s, within ±2% of the set value Speed ≥0.05%FS/s, within ±0.5% of the set value |
| Adjustment of deformation rate | 0.005～5%FS/s |
| Deformation Rate Control Precision | Speed ＜0.05%FS/s, within ± 2% of the set value Speed ≥0.05%FS/s, within ± 0.5% of the set value |
| Displacement rate regulation range | 0.01～500mm/min |
| Accuracy of displacement rate control | Speed＜0.5mm/min, within±1% of the set value Speed ≥0.5mm/min, within±0.2% of the set value |
| Host test space | Lower space compression (single space) |
| Effective travel | 1200mm(Between the two plates) |
| Effective test width | 1200mm |
| Mainframe dimensions | About 1650*620*2250(Custom size) |
| Weight | About 850Kg |
| Electric Source | 220V, 50Hz, 1.5kW |
