 |
   |
 |
Deformed NT shape memory alloy restores itself to its original shape when heat is applied to it. this process of remembering its original shape is why this alloy is now called a shape meory alloy. NT shape memory alloy is used in a wide variety of applications and diverse consumer fields. Prime examples are automobiles and household electrical appliances. the NT alloy often functions as an actuator and sensor. If used effectively, the NT alloy can reduce the physical size of mechanisms, improve product reliablity and provide a longer product service life.
 |
Exibitions in 2006Andrew Proffitt our European Sales Manager will be attending the MEDTEC event from Furukawa Electric Europe as well as engineers from FTM factory in Japan. We look forward to meeting you all there, thank you. For further information please either e-mail to sales-nt@furukawa.co.uk or call our sales team on +44 20 7313 5350. |
Exibition Details: City: Stuttgart Booth: TBD Dates for Event February 11 - March 13th 2008 |
 |
 |
Automatic oil valve adjusting device for ShinkansenThe latest models of Shinkansen (also known as the Bullet train), are equipped with aluminium gearboxes that incorporate an automatic oil level adjusting system (valve). The valve with an SMA spring controls the oil level inside the gearbox according to the change of oil temperature. Installing this system achieved a reduction of oil temperature of 30 degrees celsius |
 |
SMA-NT Shape Memory SpringOur SMA NT spring can be used as a combined sensor and actuator. A typical solution is to use the SMA NT spring in a valve system, where it automatically senses temperature change and exerts a significant (calculated) force to actuate the valve. In the case of the Autotronic transmission, the valve system automatically changes the direction of oil flow. |
More details available on Furukawa Actuator Wire |
 |
Shape Memory Actuator Wire for Panasonic portable MD recorderThese products are considerably more lightweight and compact than their previous models. The SJ-MR240 & SJ-MR270 are 8% & 11% lighter, respectively and are miniaturised by 22%; however they still manage to offer the world's longest continuous playback time of 130 hours! The above achievements have been partly gained by use of electric current actuator SMA wire ( Furukawa NT-H7-TTR). The wire has been utilized as a drive source for the elevator style of magnetic head. This solution minimises required space and provides a simple system structure. |
More details available on Furukawa Actuator Wire |
|
|
Shape Memory Spring for Shower Mixing ValveSMA spring will control the ratio of cold and hot water. It will prevent extreme changing of water temperature at the begging of flow. |
More details available on Furukawa Japan Website |
This alloy behaves like a rubber material with a very wide elwastic region. It can be bent or deformed, but it's extraordinary elasticity allows it to recover its original shape when the bending or deformation stress is removed. This unique elasticity feature of the super-elastic NT alloy has been implemented ina wide variety of springs, wires and tube applications for clothing accessories, personal accessories, electronic devices and treatments in the medical and dental fields.
 |
 |
Core wire for Cellular phone AntennaSEA wire is globally used as the core wire of the retractable antenna for cellular phone Eyeglass framesUtilizing SEA for the temple and bridge, NT Eyeglass frames can stand excessive straining and offer super comfort. Its unique quality is also ideal for children's glasses too. |
More details available on Furukawa Techno Material Website |
 |
 |
NT wire for Fishing LineVer thin SEA wires (0.0430~0.090mm) are used for Ayu (Sweet fish, a small river fish) fishing metal line. Superior elasticity (rubberness) gave NT wires excellent anti-shock property, making them "the metal line with nylon feeling". |
More details available on Furukawa Techno Material |
 |
Orthodnotic WireSEA Round and Square wires are used for braces. their constant recovery forces throughout straining reduces unpleasant sensations for patients. An ideal choice for braces. |
More details available on Furukawa Techno Material |
 |
 |
NT TubeThe production of SEA tubes used to be a challenge of technology. We have established a product line with a wide range of sizes and properties, all of superb quality. Increasing high levels of demand for this product have been forthcoming from the Medical Device Industry. |
More details available on Furukawa Techno Material |
When ordinary metallic materials have an excessive stress beyond their elastic regions, they are not able to fully restore their original shapes. After the excessive stress load is removed, a permanent deformation remains. When Furukawa's Nt shape memory alloys have an excessive stress load applied, beyond its elastic region, at a temperature less than the transformation (Af) temperature, it undergoes a plastic-like deformation. When heat, higher than the transformation is applied, the deformation disappears and the original shape is restored. Furukawa's super-elastic NT alloy can accept an excessive stress load up to ten times the alloys elastic stress region, at a temperature higher than the transformation temperature. When the excessive stress load is removed, the deformation disappears and the alloy restores its original shape.
| Density |
g/cm | 6.4~6.5 |
| Melting point | °C | 1240~1310 |
| Specific heat | J/(kg·K) {cal/(g·°C)} |
230~314 {0.056~0.075} |
| Linear expansion co-efficient | 10-³/°C |
10 |
| Heat conductivity |
W/(m·K) {cal/ (cm·°C)} |
20 {0.05} |
| Specific resistance |
10 |
05~1.1 {50~110} |
| Tensile strength | Material that is heat treated Material that is not heat treated |
MPa {kgf/mm |
686~1470 {70~150} |
| Elongation | Material that is heat treated Material that is not heat treated |
% |
~60 |
Furukawa offers a complete manufacturing solution in an integrated production system ranging from the melting operation through forming and machining fabricated parts. Product quality is highly controlled with strict engineering and manufacturing parameters.
 |  |
Furukawa offers a wide variety of NT alloy formulations to meet your shape memory characteristics, super elastic characteristics and customer specific requirements. A wide range of transformation temperatures are also available. please contact us with your specific requirements. we can offer further information and guidance to engineer your custom device design requirements.
| Effect | Symbol | Alloy types | Range of transformation temperatures (°C) | Restorable deformation(%) | Temperature hysteris (°C) | Durability | Application example |
| Shape memory effect |
NT-M |
Ni-Ti |
0~70 |
1 |
2~3 |
>1,000,000 |
Sensor actuator designed for a long service life |
|
NT-H |
Ni-Ti-Cu |
50~80 |
5~6 |
10~15 |
10,000~50,000 |
Sensor actuator designed for a large stroke |
|
|
NT-M |
Ni-Ti |
-10~100 |
6~8 |
20~40 |
<100 |
Connector Joint |
| Effect | Symbol | Alloy types | Range of transformation temperatures (°C) | Super-elastic stress (MPa {kgf/mm  }) |
Stress hysteris (MPa {kgf/mm }) |
Feature Application | Application example |
| Super-elastic effect |
NT-E |
Ni-Ti |
-20~50 |
294~588 {30~60} |
245~428 |
Long service life Good machinability |
|
|
NT-N |
Ni-Ti |
490~882 |
245~428 |
High super-elastic stress |
|||
|
NT-HR |
Ni-Ti-Cu-Cr |
294~882 |
98~294 |
Low stress hysteris |
Furukawa NT alloy is available in a wide variety of shapes. Shapes currently available are round wire, square wire, square wire, extremely thin wire, springs, tapes, plates, foils, tubes and other three-dimensional objects. Furukawa can customize these shapes to your specific requirements with our proprietary forming and shape memory processes.
Home page ← Company
profile ← Products ← Corporate
links ← News ← Contact
Products - Automotive ← Optical
connectors ← Optical components ←
Fusion splicers ← Materials
- Ni Ti. Alloys ← Electronics
m
{µ 
}