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The test specifies a test method for measuring the axial force required for the extraction or failure of a metal bone screw from a specified material.
Test Procedure:
1, The bone screw should be inserted into the test block as specified in the standard (design to ASTM F1839) at an insertion speed of 3 rpm for 20 mm or 60% of the thread length.
2, While the test block is secured to the base of the frame, the screw head shall be gripped and a tensile load shall be applied at a rate of 5 mm/min until the screw fails or releases from the test block.
Result:
Insertion Depth
Axial Pullout Strength
Torque measuring range | 0-5N.m |
Resolution | 0.001N.m |
Torque sensor accuracy | Less than 0.5%F.S. |
Speed accuracy | ±0.01mm/min |
Axial force load cell | 200N/1000N (fulfill axial pull-out test) |
Load cell accuracy | Less than 0.5%F.S. |
Load cell resolution | 0.001N |
Linear displacement sensor range | More than 50m |
Displacement sensor accuracy level | Less than 0.5%F.S. |
Displacement sensor resolution | 0.01mm |
Torsion angle sensor | 99999 degrees |
Torsional angle accuracy | ±0.2 degree |
Torsion speed | 1r/min to 30r/min free adjusting |
Effective travel | 400±10mm (can be increased on demand) |
The coaxiality of the two chucks | ≤ 0.2mm |
Standard Power | 220V, 50HZ, 1 phase, 0.4Kw |
Working system | MS Win10 |