Products Description
Ni-Ti shape memory alloys are extremely interesting materials both for their ability of showing the shape memory effect (SME) and for their elevated strength and ductility. Shape memory alloys do exactly as their name would suggest; they're metallic materials that are able to remember, and return to, their original shape (the shape they are given when made, say as a casting or an extrusion) under the right stimuli. The principle behind this unusual phenomenon comes from two diverse atom arrangements (crystal structures) present in this material - one at high temperatures and one at low temperatures - that are reversible. At high temperatures, where one of the crystal structures is favoured, the material can be shaped as desired and it retains this geometry as it cools to lower temperatures. Cooled, the material can be bent and twisted beyond all recognition of its previous guise but, on heating, the low temperature atomic arrangement reverts to its previous form and, in so doing, miraculously returns to its previous shape.
Technical Specifications
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1..Size: superelastic nitinol wire 1.5mm
Wire:Dia0.05-6.0mm
Bar:Dia3.0mm-20mm
Sheet: Thickness 0.3-10.0mm Width≤400mm Length≤2500mm
2.Surface State Options: Nitinol one-way shape memory alloy spring
♣ Black oxide surface
♣ As cleaned surface
♣ Medical grade polished surface
♣ Centerless ground surface
3. Chemical composition:
Ni: 55.4% --56.2% C≤0.07 H≤0.005 O≤0.050 N:≤ 0.05
Technical Specifications
How does a compression spring work?
Compression springs are open-coil helical springs that resist compressive forces as they are applied to them. When a heavy object or force is applied to the spring, it condenses, storing the force until it is eventually released.
Compression springs can come in many shapes, sizes and can be fit into a hole or placed over a rod within a particular application. Its versatility makes it easy to customize based on your needs, Our team can configure your springs to exhibit unique characteristics such as extreme space efficiency, nonlinear load deflection, improved energy storage capacity, and a many other factors.
Shape Memory of superelastic nitinol wire 1.5mm
When shape memory alloys are in their martensitic form, they are easily deformed to a new shape. However, when the alloy is heated through its transformation temperatures, it reverts to austenite and recovers its previous shape with great force. This process is knows as Shape Memory. The temperature at which the alloy remembers its high temperature from when heated can be adjusted by slight changes in alloy composition and through heat treatment. In the Nickel Titanium alloys, for instance, it can be changed from above +100 deg. C to below -100 deg. C. The shape recovery process occurs over a range of just a few degrees and the start or finish of the transformation can be controlled to within a degree or two if necessary.
Superelasticity of superelastic nitinol wire 1.5mm
These unique shape memory alloys also show a Superelastic behavior if deformed at a temperature which is slightly above their transformation temperatures. This effect is caused by the stress-induced formation of some martensite above its normal temperature. Because it has been formed above its normal temperature, the martensite reverts immediately to undeformed austenite as soon as the stress is removed. This process provides a very springy, "rubberlike" elasticity in these alloys.
The Factory photos
Long lifespan
Resist fatigue
Hyperelasticity
Corrosion prevention
Our main products include: one-way memory springs, two-way memory springs, super elastic memory springs, nickel titanium alloy and other processed parts. Over the years, we have won the recognition and support of our customers with excellent product quality and meticulous and thoughtful service.
The research and application of nickel titanium alloy materials are still in the ascendant stage of development worldwide. Our company not only cultivates its own research and development capabilities, but also actively collaborates with research and experimental institutions such as Wuhan University, Xi'an Jiaotong University, Northwest Non ferrous Metals Research Institute, National University of Singapore Suzhou Research Institute, American Croco Research Laboratory, and Meixin Testing to carry out industry university research and project cooperation.
Factory advantages
1. Ability to customize;
2. Has items in stock;
3. Short lead time;
4. Exported to many counrises before;
5. Has a factory
Products application
★Shock isolation:
Nitinol alloy is a type of shape memory alloy, which is a special alloy that can automatically restore its plastic deformation to its original shape at a specific temperature. Nitinol alloy has both good processing performance and reliable product quality, with a lifespan weight of 80% that of stainless steel; 86% of carbon steel; Copper is 75%, with a stretching rate of over 20% and a fatigue life of 1 * 10 to the 7th power. Its damping characteristics are 10 times higher than ordinary springs.
Vibration is the cause of damage to engineering structures and a decrease in lifespan. At the same time, vibration will lead to a decrease in the efficiency, quality, and accuracy of machines and instruments.
The role of vibration isolation is twofold: firstly, it reduces the transmission of vibration from the vibration source to the surrounding environment; The second is to reduce the impact of environmental vibration on objects or equipment. Studying vibration isolation from the perspective of vibration control does not involve the calculation of structural strength, it only studies how to reduce vibration itself. It means changing the nearly rigid connection between the vibration source and the foundation or connecting structure into an elastic connection to prevent or weaken the transmission of vibration energy, ultimately achieving the goal of vibration reduction and noise reduction.
Nitinol alloy springs have the characteristics of super elasticity, high damping, and fatigue resistance. Moreover, the damping performance of nitinol alloy springs is similar to that of silicone rubber, and their strength is similar to that of titanium. Therefore, they can be used as damping components in many industries and fields. In addition, nickel titanium alloy has a higher hardness than high-speed steel and can also be used in other high wear applications and high frequency and high yield environments.
★Temperature control:
Nitinol alloy shape memory state: It is further divided into two characteristics: one-way shape memory and two-way shape memory.
One way shape memory springs are a type of shape that can undergo plastic deformation through external forces at initial temperature. However, if the environmental temperature changes and reaches its transition temperature, one way shape memory springs can quickly restore their original initial shape. Generally, single way shape memory springs or shrapnel can be purchased in the market;
The manufacturing process of two-way shape memory springs is much more complex, as it can endow the springs with two different initial shapes and transition temperatures. As the ambient temperature alternates between two transition temperatures, a two-way shape memory spring can quickly switch and release force between the two initial shapes without any external force.
Nowadays, many temperature control valve cores use shape memory alloy springs. The temperature control principle of shape memory alloy springs: in the SMA temperature control valve core. The shape memory alloy spring itself serves as a temperature sensing element, and the expansion and contraction of the shape memory stage metal determines the temperature of the mixed liquid by adjusting the amount of cold and hot liquid, and then feedback and adjust it through the characteristics of the memory alloy. This repeatedly achieves a dynamic balance, saving valuable space and making the temperature control valve core more exquisite. The SMA temperature control valve core has an extremely fast response speed, which can meet the needs of users for stepless fine tuning.
Packing
1. Packaging with moisture-proof paper.
2. Packaging with Kraft paper.
3. Packaging with foam plastics in all side of wooden case.
4. Packing products in wooden case.
Country:China
Add:Baoti road,Jintai,Baoji city,Shaanxi,China
Cel/Whatsapp :+86 18309262795
Email:annie@jmyunti.com
Website:www.jm-titanium.com
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