Huizhou Pengchengrui Technology Co., Ltd.

Nickel titanium alloy wire (also known as Nitinol wire) has a wide and critical range of applications in various fields due to its unique shape memory effect (able to recover its preset shape under temperature or stress) and superelasticity (able to produce elastic deformation far beyond that of ordinary metals under external forces, and fully recover after unloading). The following are its main usage categories and specific scenarios:

1、 Medical and health field

Medical is the most core application field of nickel titanium alloy wire, thanks to its good biocompatibility and mechanical properties that are suitable for human tissue:

(1) Interventional therapy equipment

Vascular stent: A stent made of ultra elastic nickel titanium alloy wire, which can be delivered to narrow blood vessels through a catheter, automatically dilates and maintains vascular patency after release, and is suitable for coronary heart disease, peripheral vascular diseases, etc.   

Guidewire/catheter: Guidewire made of nickel titanium alloy wire has excellent flexibility and controllability, and can accurately navigate in complex curved blood vessels, digestive tracts, and other cavities, guiding other instruments to reach the lesion.   

Orthopedic instruments: Pedicle screw rod systems, fracture internal fixators, etc. used for correcting scoliosis, utilize shape memory effects to restore preset shapes at body temperature, achieve stable fixation of bones, and reduce surgical trauma.   

(2) Oral Medicine

Orthodontic wire: Super elastic nickel titanium alloy wire can generate sustained and gentle orthodontic force, adapt to the deformation needs during tooth movement, and is more comfortable than traditional metal wire, shortening the orthodontic cycle.   

Dental implant auxiliary components: used to fix the surrounding tissue of the implant or create an elastic abutment to cushion bite force.   

(3) Minimally invasive surgical tools

Laparoscopic/endoscopic instruments: such as grasping forceps and scissors made of nickel titanium alloy, which use super elasticity to achieve flexible opening and closing and adapt to narrow surgical spaces.   

Embolization coil: Used for embolization of cerebral vascular aneurysms, it expands and shapes within the blood vessels through shape memory effect, preventing blood from flowing into the aneurysm.   

2、 Aerospace field

Utilizing its shape memory effect to achieve lightweight and intelligent control:

Adaptive structure: such as the support skeleton of a spacecraft antenna, which folds during launch to reduce volume, and returns to its preset shape through temperature changes (such as solar heating) after entering space, unfolding into a working state.   

Sealing and connecting components: used for sealing joints in pipelines and cabins, achieving a tight fit through shape memory effect during temperature changes to prevent leakage.   

Vibration control: making dampers to absorb the vibration energy of spacecraft during launch or operation using hyperelasticity, stabilizing the working environment of the equipment.   

3、 Mechanical and Intelligent Manufacturing

Intelligent driving components: replace traditional motors and hydraulic devices, control the contraction/extension of nickel titanium alloy wires through temperature or current, achieve miniaturization and high-precision driving, such as micro robot joints and precision valve switches.   

Sensors and actuators: Using the deformation temperature correspondence relationship of shape memory effect to create temperature sensors; Or as an actuator, it triggers mechanical action at a specific temperature (such as the automatic power-off device of a fire alarm).   

Fasteners: used for bolts and buckles in high-temperature environments. They are molded at low temperatures during installation and restored to their shape by heating up during operation, achieving a secure connection (such as automotive engine components and industrial furnace accessories).   

4、 Daily and Consumer Fields

Glasses frame: The legs and frame are made of super elastic nickel titanium alloy wire, which can withstand large bending deformations without breaking, making it more durable and comfortable to wear.   

Sports equipment: such as fishing lines (anti fatigue, good flexibility), elastic components of golf clubs, to enhance performance.   

Wearable devices: smart wristbands/watch straps that use super elasticity to adapt to different wrist sizes, or built-in nickel titanium alloy wires as temperature sensing elements.   

Nickel titanium alloy wire

5、 Other special fields

Energy industry: downhole tools used in oil and gas extraction, such as adaptive packers, achieve sealing of the wellbore through temperature changes.   

Biomimetic robot: Simulate the contraction characteristics of biological muscles, create driving cables for flexible robots, and achieve flexible movements similar to those of living organisms (such as snake like robots and soft robots).   

The core application of nickel titanium alloy wire lies in its "smart material" characteristics. With the advancement of processing technology (such as ultra-fine diameter wire and complex shape weaving technology), its application scenarios are constantly expanding, especially in the fields of miniaturization and high-precision control, which have irreplaceable advantages.