Huizhou Pengchengrui Technology Co., Ltd.

Nickel titanium tube is a tubular product mainly made of nickel titanium alloy. Due to its unique shape memory effect, superelasticity, and good biocompatibility, nickel titanium alloy has demonstrated irreplaceable advantages in multiple fields. The following is a detailed introduction to its main characteristics and application areas:

Nickel titanium tube

1、 Main characteristics of nickel titanium tube

1. Shape memory effect

After being deformed at a certain temperature, nickel titanium tubes can recover to their original shape before deformation when the temperature rises to a specific "phase transition temperature", and the recovery process is reproducible. According to different memory effects, it can be divided into one-way shape memory effect, two-way shape memory effect, and full process shape memory effect.

2. Super elasticity (pseudo elasticity)

At room temperature, nickel titanium tubes can withstand significant plastic deformation (up to 8% -10%), and can immediately return to their original state when external forces are removed, far exceeding the elastic limit of ordinary metal materials (usually only about 0.5% for metals). This characteristic makes it perform excellently in scenarios where it is repeatedly subjected to force.

3. Good biocompatibility

Nickel titanium alloy has low irritation to human tissues, is not easy to cause allergies or rejection reactions, and is resistant to body fluid corrosion, so it is widely used in the medical field.

4. Corrosion resistance

Nickel titanium alloy has good corrosion resistance in air, water, and various corrosive media. Its surface can form a dense oxide film to protect the internal materials from corrosion.

5. Excellent mechanical properties

In addition to superelasticity, nickel titanium tubes also have high strength and toughness, which can adapt to mechanical requirements in different scenarios.

6. Temperature sensitivity

Its shape memory effect and superelasticity are closely related to temperature. By adjusting the alloy composition, the phase transition temperature can be changed to adapt to different working environments (such as human body temperature, room temperature, or high temperature scenarios).

2、 Application fields of nickel titanium tubes

1. Medical field

Interventional medical devices: such as vascular stents (which use super elasticity to stretch and maintain shape within blood vessels, adapting to vascular peristalsis), guide wires (which can bend in the body and restore shape for precise access to lesions), orthopedic orthotics (such as scoliosis correction rods, which achieve continuous correction force through shape memory effect).   

Surgical tools, such as grippers and suturers in minimally invasive surgery, utilize super elasticity to achieve flexible operation and reliable clamping.   

Dental field: orthodontic wire (can provide continuous and gentle correction force with changes in oral temperature, reducing patient discomfort).

2. Aerospace field

Used for manufacturing pipeline connectors, antenna support structures, etc. for spacecraft. For example, during spacecraft launch, nickel titanium tubes can be folded to save space, and after entering space, they can be restored to their original state through temperature changes, enabling the deployment of components such as antennas.   

The sealing components of the engine pipeline utilize shape memory effect to achieve tight sealing at high temperatures and adapt to extreme temperature changing environments.

3. In the field of mechanical engineering

Precision control devices: such as temperature control valves (when the temperature reaches the set value, the nickel titanium tube changes shape and drives the valve switch), and automatic adjustment mechanisms (using shape memory effect to achieve automatic control of equipment, such as ventilation valves for greenhouse temperature regulation).   

Shock absorption and buffering device: Utilizing super elasticity to absorb vibration energy, such as shock absorption components in automobiles and machine tools, to reduce impact and noise during equipment operation.

4. Intelligent materials and robotics field

As an intelligent driving component, it is used to manufacture the "muscles" of small robots (by controlling shape changes through temperature or current to achieve robot movement).   

The joint components of flexible robotic arms utilize superelasticity and shape memory effects to achieve flexible bending and resetting.

Application of Nickel Titanium Alloy Materials in Intelligent Robots

5. Civil field

Glasses frame (can withstand large deformations without being easily damaged, making it more comfortable and durable to wear).   

Sports equipment (such as golf club shafts that utilize super elasticity to enhance hitting stability).   

Pipeline connector (inserted into the interface at low temperature, expands to achieve tight connection after heating, suitable for sealing liquid or gas pipelines).

Nickel titanium tubes play an important role in medical, aerospace, mechanical engineering, and other fields due to their unique advantages such as shape memory effect, superelasticity, and biocompatibility. With the continuous advancement of material preparation technology, its performance is still being optimized, and its future application scenarios are expected to be further expanded, especially in the fields of intelligent equipment and precision medicine, with enormous potential.