NITIVY
NIVITY RP-18 Twisted Rope
Model: RP-18
Heat-Resistant Fiber
NITIVY ALF™ is a continuous alumina fiber that was developed based on our vinylon (PVA fiber) dry spinning technology.
The yarn, which is made of bundles of filaments formed from fine crystal grains, is highly flexible and processable into various products such as fabrics and sleevings without the aid of other fibers.
NITIVY ALF™ has a wide range of applications thanks to its excellent thermal resistance, high strength and modulus, and electrical insulation properties.
Characteristics of NITIVY ALF™
 |  |
|
| Standard grade | High heat-resistant grade |
Applications of NITIVY ALF™
- Furnace linings
- Heat-shielding curtains
- Roller covers for toughened glass operation
- Spacers for the heat treatment of metal or other materials
- Thermal insulation coverings for the thermocouples, cables and wires
- Ceramic Matrix Composites (CMCs)
- Thermal insulation seals or packing materials
- Insulators around generators or aircraft/rocket engines
- Cryogenic insulation
- Abrasives for plastic whetstones
- Thermal insulation rings (disks and collars) for semiconductor diffusion furnaces
- Others
Properties
| Item | Type | Standard grade | High heat-resistant grade |
|---|---|---|---|
| Color | White | Cherry blossom | |
| Appearance | Continuous | Continuous | |
| Filament diameter(μｍ) | 7 | 10 | |
| Chemical composition(％) | Al2O3 | 72 | 70 |
| SiO2 | 28 | 28 | |
| B2O3 | ー | 2 | |
| Density(g/cm3) | 2.9 | 3.0 | |
| Crystal phase | γ-Al2O3 | γ-Al2O3 | |
| Maximum use temperature(℃) | 1,250 | 1,400 | |
| Melting point(℃) | ＞1,850 | ＞1,800 | |
| Bending Resistance Comparison of Filament Diameter | Strength Retention After Exposure to High Temperatures |
 |  |
Twisted Rope (Standard grade)
| Type | Outside Diameter (mmφ) | Twist (T/m) | Weight (g/m) | Length (m/bobbin) | Quantity (g/bobbin) |
|---|---|---|---|---|---|
| RP-18 | 2 | 100 | 3.8 | 130 | 500 |
*Please note: the outside diameter is a rough guide.
- We also offer high heat-resistant grade sewing rope products. Please feel free to contact us.
- Please consult with us if you need a product with specifications other than those listed here.
- The figures in this table are typical values, not guaranteed.
