Steel strａnd deflected tensile testing machine
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1.introduction
The steel strａnd deflected tensile testing machine is to determine the reduction coefficient of the maximum force in uniaxial tension due to a deviation of 20° around a specified mandrel.
2. test method for deflected tensile test
GB/T 5224 steel strａnd for prestressed concrete
ISO 6934-4 steel for the prestressing of concrete-part 4:strand
GB/T 21839 steel for prestressed concrete-test methods
ISO 15630-3 steel for the reinforcement and prestressing of concrete-test method-part 3:prestressing steel
3.deflected tensile test device drawing
4. specification
| No | Item | Spec |
| 1 | Max. load capacity | 600KN |
| 2 | Measuring range of load | 2%-99%FS |
| 3 | Load accuracy | ≤±1% |
| 4 | Load resolution | 1/±200000FS |
| 5 | Displacement rate | 0.5-50mm/min |
| 6 | Loading rate | 30Mpa/s-60Mpa/s |
| 7 | Measuring range of deformation | 0.2%-99%FS |
| 8 | Deformation resolution | 0.01mm |
| 9 | Diameter of steel strand | ≥12.5-30mm,15-16mm,17-18mm |
| 10 | Length of steel strand | ≥2000mm |
| 11 | Grip of steel strand | 3 times of nominal diameter of steel strand |
| 12 | Piston stroke | 0-200mm |
| 13 | Loading frame | Horizontal structure,high rigidity,high stability |
| 14 | Working voltage | 380V,50Hz |
| 15 | Power | 2.2kW |
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