Huizhou Pengchengrui Technology Co., Ltd.

Nickel titanium fiber wire is a shape memory alloy wire composed of nickel and titanium, which has been widely used in multiple fields due to its unique physical and chemical properties. Here is a detailed introduction about it:

1、 Basic Information

Composition: The nickel content in nickel titanium fiber filaments is usually 54% -57%, with titanium as the balance. In addition, it may also contain small amounts of other elements such as iron, copper, chromium, etc., with a content usually less than 1%.

Manufacturing process: Its manufacturing involves various processes such as powder metallurgy, sintering, drawing, annealing, etc., to ensure that the chemical composition and microstructure of the alloy wire meet the standards. It can also be prepared by electrospinning technology, selective laser melting and other methods.

Nickel titanium fiber wire

2、 Performance characteristics

• Shape memory effect: Nickel titanium fiber filaments can recover to a predetermined shape after being heated to a certain temperature (transition temperature), making them suitable for smart material applications that require shape changes.

• Super elasticity: It can withstand large deformations without permanent deformation, can withstand large deformations at room temperature and restore to its original state, suitable for applications with high elasticity requirements.

• Corrosion resistance: It has good corrosion resistance to body fluids, seawater, and various chemical media, performs well in harsh environments, and can be used in fields such as chemical and marine environments.

• Biocompatibility: Nickel titanium fiber filaments are non-toxic to human tissues and have good biocompatibility, making them widely used in the field of medical devices.

• High fatigue life: It has strong durability, can withstand long-term cyclic use, and is not prone to fatigue damage.

• Lightweight and High Strength: With light weight and high strength, it has advantages in fields such as aerospace and automotive industries that require high material weight and strength.

3、 Physical performance

Tensile strength: generally 800-1100MPa.

Yield strength: Depending on the heat treatment state, typically between 100-800 MPa.

Elongation rate: 10% -20%.

Hardness: Approximately HRC20-40.

4、 Surface condition

The surface states of nickel titanium fiber filaments include black oxidation state, light oxidation state (color ranging from golden yellow to brown), clean state, bright state, ultra bright state, and ground state.

5、 Application Fields

• Medical devices: used for dental orthodontic wires, utilizing their super elasticity and shape memory effect to achieve dental correction; It can also be used to make vascular stents that can restore their preset shape at body temperature for cardiovascular intervention therapy; It can also be used as orthopedic implants, such as bone nails, bone plates, etc.

• Aerospace: Applied to intelligent structures such as deformable wings, satellite antennas, etc., utilizing their shape memory effect to achieve automatic unfolding and deformation of structures.

• Robots: Can be used for bionic robot joints and actuators, utilizing their superelasticity and shape memory effects to achieve flexible movements.

• Industrial applications: used for pipeline connectors, fasteners, and seals, utilizing super elasticity to achieve reliable connections and seals; It can also be used for shock absorbers and dampers, absorbing vibrations and impacts with high damping performance.

• Consumer goods: commonly found in eyeglass frames, mobile phone antennas, etc., utilizing their super elasticity and corrosion resistance to improve product performance and service life.

Wuge Nickel Titanium Alloy Materials provides full industry chain product services for nickel titanium, from nickel titanium alloy smelting, forging and opening billets, rolling, wire drawing to finished products (nickel titanium fiber wire and seamless nickel titanium tube). Welcome everyone to communicate and exchange ideas.