Explain how to choose wire and material torsion testing machine
1. The metal wire torsion testing machine mainly tests the number of torsion turns, sees the ability to withstand plastic deformation and shows the surface and internal defects of the wire; the material torsion testing machine has a wide and accurate loading speed and force range for load, deformation and displacement. The measurement has high precision and sensitivity, and it can also perform constant velocity loading and constant velocity displacement test.
2. Wire torsion testing machine mainly tests metal wire, steel wire, iron wire, copper wire and aluminum wire; material torsion testing machine mainly tests metal materials such as couplings, non-metal materials, composite materials, and components.
3. The metal wire is twisted with pre-tightening force, which is not more than 2% of the nominal tensile strength; the material torsion testing machine does not have pre-tightening force.
4, metal wire torsion testing machine in line with GB-239-1999 "metal wire torsion test method", single bidirectional torsion, and the number of tests up to 300r / min; material torsion testing machine mainly test sample torque, in line with JJG269 "torsion test Machine verification procedures, GB/T10128 "Metal material room temperature torsion test method".
5. The metal wire torsion testing machine is generally a digital display LCD display; the material torsion testing machine can be controlled by a microcomputer.
6. The metal wire torsion test machine clamp is specifically a jaw, and the material torsion test machine is a three-jaw chuck.
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