| Dimension test | On-line optical diameter measuring instrument, micrometer, tape measure and image measuring instrument |
| Surface finish | Optical magnifier, image measuring instrument, comparison block |
| Af temperature measurement | Standard test method for phase transition temperature of nickel-titanium material by bending and free recovery is used. The material is deformed and heated slowly at low temperature. The temperature of the material restored to its original state is observed and recorded. |
| Tensile test | Tensile tests of Ni-Ti alloy wires were carried out according to the drawing method stipulated in GB/T 228-2002 standard to obtain, record and submit mechanical properties data. Tensile tests are carried out in accordance with the above standard procedures. Usually tested at room temperature 22-plusmn; 2-deg; C |
| Stiffness Testing | The stiffness of the material can be determined by truncating a certain length of nickel-titanium wire, placing it on a horizontal cylinder bar at a fixed distance, pressing it in the middle of the wire, pressing it down on a tension testing machine, pressing it down at a specified distance at a fixed speed and average speed, and measuring the resilience. |
| Elasticity testing | Testing the elasticity of nickel-titanium wire by bending the mandrel of 20 times of the wire 10 times, measuring the distance of the wire from its original position, recording data, or measuring the bullet in a manner agreed with the customer |
| Welding firmness test | It is possible to suspend weights or tension testing machines for destructive or non-destructive testing of welded components. Any welding process must be verified and validated in this way |
