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Function of nickel-Titanium alloy shape memory alloy
Nitinol shape memory alloy has the unique function of Nitinol shape memory alloy, as well as the advantages of superelasticity, wear resistance and corrosion resistance, so it has been widely used in many fields.
1. Space industry
In the aircraft hydraulic system, basically every aircraft needs to use 800 nickel-titanium alloy shape memory alloy joints. Nitinol shape memory alloy can also be used in spacecraft antenna, aircraft electric actuator, etc.
2. Automobile industry
Nickel-titanium alloy shape memory alloy is mainly used for engine exhaust fan clutch, exhaust nozzle, diesel radiator, etc.
3. The construction
Combined with the structure of nickel-Titanium alloy shape memory alloy, various kinds of alloys can be made by enhancing the damping of the system and reducing the dynamic response of the structure. Damped energy dissipation device. The shape memory alloy of nitinel alloy can also be used to increase the energy dissipation caused by deformation and displacement through the shape design of nitinel alloy, which prevents the transfer of seismic energy to the upper part of the structure, thus protecting the upper part of the structure and enhancing the seismic performance of the structure.
4. Medical field
Nitinol shape memory alloy has been widely used in medical field due to its high mechanical properties and biocompatibility. Such as orthodontic, plastic surgery, cardiovascular minimally invasive aspects; Thrombus filter is actually a new product of Nitinol shape memory alloy. Straightened filters can cause more than 90% of blood clots to flow to the heart, lungs and other organs at any time after being inserted into a vein. In addition, nickel-titanium alloy shape memory alloy is also used in medical clinical trials, such as surgical sutures, artificial joints, artificial hearts and so on.
5. Mechanical engineering
Nickel-titanium alloy shape memory alloys were first used in the mechanical industry for pipe joints and fasteners. Specifically, the Nitinol shape memory alloy is used to process the shell with an outer diameter 3% larger than the inner diameter at the connection of mechanical parts, pipes and the refueling interface of the aircraft, and make the shell expand at a certain temperature of about 8%. During assembly, the casing is removed from the liquid nitrogen and inserted into the pipe from both ends. If the temperature rises to room temperature, electrical heating can be used to change the temperature. Nitinol shape memory alloy makes refueling interface deformation, Nitinol shape memory alloy after the processing of the shell shrinkage formed a tight seal, so as to achieve tight sealing oil leakage, the effect is much higher than traditional welding. Therefore, Nitinol shape memory alloy is especially suitable for aerospace, ship, oil pipeline and other fields. Pins made of Nitinol shape memory alloy can be inserted into holes for heating in inconvenient places. Therefore, nickel-Titanium alloy shape memory alloy temperature sensing driver has a variety of functions, can be used in the manufacture of robots, manipulator and so on.
