Shenzhen Wuge Industrial Co., Ltd

There are various types of nickel titanium wire, and the common classifications and models are as follows:

1、According to chemical composition

Nickel titanium binary alloy wire: The main components are nickel (Ni) and titanium (Ti), with a ratio usually close to 1:1, such as the common NiTi55 alloy wire, where the mass fraction of nickel is about 55% and titanium is about 45%. This alloy wire has good shape memory effect and superelasticity.

Nickel titanium alloy wire containing other elements: On the basis of nickel titanium binary alloy, other elements such as copper (Cu), niobium (Nb), molybdenum (Mo), etc. are added to form ternary or multicomponent alloy wire. For example, NiTiCu alloy wire, by adding copper element, can to some extent change the alloy's phase transition temperature, mechanical properties, etc., to meet different application requirements.

2、by purpose

Medical nickel titanium wire

Orthodontic nickel titanium wire: There are different diameter specifications, commonly including 0.014 inches, 0.016 inches, 0.018 inches, 0.020 inches, etc. These nickel titanium wires have suitable elasticity and shape memory properties, which can provide sustained and gentle orthodontic force during the orthodontic process, helping teeth gradually move to the ideal position.

Interventional nickel titanium wire: generally requires higher flexibility and corrosion resistance, with a diameter usually smaller, such as around 0.010 inches or 0.035 inches. Commonly used in the production of interventional medical devices such as vascular stents and cardiac occluders, utilizing their shape memory function to unfold and fix them in the body at the site of the lesion, achieving therapeutic goals.

Industrial nickel titanium wire

Nickel titanium wire for aerospace: It needs to have high strength, high temperature resistance, fatigue resistance and other properties, and usually requires extremely high purity and performance consistency of the alloy. Its model varies depending on the specific application location and performance requirements, such as being used to manufacture aircraft landing gear components or some elastic elements in aircraft engines.

Nickel titanium wire for electronic appliances: It is required to have good conductivity and moderate elasticity to meet the needs of various precision components in electronic devices. The diameter of nickel titanium wire used in components such as mobile phone vibration motors and micro relays is generally between 0.1mm and 1mm, and the specific model depends on the design and performance requirements of different devices.

3、According to performance characteristics

Super elastic nickel titanium wire: It has significant super elastic properties, that is, it can produce significant elastic deformation under small external forces, and can quickly recover to its original shape after unloading external forces. This type of nickel titanium wire is commonly used in situations that require repeated deformation and high-precision recovery, such as eyeglass frames, automotive shock absorbers, etc.

Shape memory nickel titanium wire: Its main feature is the shape memory effect, which can restore to a predetermined shape under certain temperature conditions. Commonly used in the production of various automatic control components, thermal drive devices, etc., such as memory alloy joints in pipeline connections, they can deform at low temperatures for installation and return to their original shape at room temperature or high temperature, achieving a tight connection.

The above are just some common classification methods for nickel titanium wire models. In fact, different manufacturers may have their own numbering and naming rules, and specific models and specifications will be customized according to the special needs of users.