What is a Nitinol compression spring?
Nickel-titanium springs have obvious advantages over other materials.
In terms of elasticity, nickel-titanium springs have superelasticity. It can recover under large strain, the strain can be as high as 8-10% or so, while the ordinary metal spring strain is generally 1-2%, which makes the nickel-titanium spring can still work normally after enduring large deformation.
Shape memory is a unique advantage of nickel-titanium springs. It can remember the original shape, and after deformation, as long as it reaches a certain temperature condition, it can return to the original shape, which is called the "transition temperature".
Nickel-titanium springs also have good corrosion resistance. In complex media such as human body fluids or some chemical environments, it is more resistant to corrosion than springs of materials such as stainless steel, so it is widely used in medical equipment and other fields.
Moreover, the biocompatibility of nickeltitanium spring is very good, after implantation in the human body, the human tissue rejection reaction to it is very small, suitable for making medical implant devices, such as orthodontic dental arch wire.