→Wire-simple torsion test (wire rotates for 360° around self-axes in one direction until it rotate for specified times or wire breaks)
→Wire-reverse torsion test (wire rotates for 360° around self-axes in one direction until it rotate for specified times and then rotate in reverse direction for same times or wire breaks)
→Used in simple or reverse torsion test for metal wires, bimetal wire, composites, bare wire, etc.
→Used to determine the plastic deformation capacity during simple torsion and reverse torsion and check the surface and internal defects of wires.
→Used to check the form of fracture and defects (flat, ladder type, oblique, fan shaped, with crack, with shrinkage hole, etc.)
Test Standards
→ISO7800：2012(E) Metallic materials-Wire-Simple torsion test MOD；
→ISO9649 Metallic materials-Wire-Reverse torsion test MOD；
→ISO4101 Drawn steel wire for elevator ropes-Specifications MOD；
→ISO7802:2013(E) Metallic materials-Wire-Wrapping test；
→GB/T239.1-2012 Metallic materials-Wire-Part1：Simple torsion test；
→GB/T239.2-2012 Metallic materials-Wire-Part2：Reverse torsion test；
For more information about wire testing machines, please check the following links:
http://www.hrjtest.com/list/?138_1.html
