NITIVY ALF

  NITIVY ALFTM is Boron-free Alumina-Silica fiber that is developed for extremely high temperature applications.

Unlike other heat resistance fibers, such as RCF and AES, NITIVY ALFTM does not require the aid of reinforcements in the usage in any forms that enable ALFTM to retain superior strength or flexibility. More importantly, there is no emission after heat cleaned, even in high temperatures.

NITIVY ALFTM, boron free continuous alumina silica fibers, retains its strength and flexibility up to 2,282F in continuous usage and chemically stable – resistant to most acid and metals, also has good electrical insulation properties at both room and elevated temperatures. There is a growing interest in ALFTM in a wide range of applications which require high temperature operation environments.

  1. Excellent heat resistant properties.
  2. Fine filament diameter of 7micron.
  3. Superior flexibility.
  4. High tensile strength and modulus.
  5. Resists corrosion.
  6. Superior electrical insulation properties.
  7. Does not absorb moisture.
  8. Does not contain Boron.



Typical properties
  Unit Properties
Color - White
Form - Continuous fiber
Filament diameter micron 7
Chemical composition Al2O3
SiO2
% 72
28
Density - 2.9
Crystal phase - γ-Alumina
Tensile strength Mpa 1,967
Tensile modulus Mpa 167
Shrinkage at 2,192F × 30min % <2
Weight loss at 1,832F×60min % 0 (excluded organic sizing)
Temperature range F 2,282

Note: Temperature range is advised based on experience but not guaranteed. The trial in the actual condition in your facility is recommended before developing the specifications.



1.Steel manufacturing
Various materials among ALF products, especially woven fabrics, have been in continuous annealing furnace. ALF woven fabrics stop the falling of particles coming out from RCF insulations, which cause product defections.
 
2.Tempered glass manufacturing
ALF braided sleeving has been used in tempered glass furnaces as a roller covering, which prevents product defections.
 
3.Semiconductor manufacturing
Because of containing no boron, Discs and Collars made of ALF woven fabrics or braided sleeving, generate no emission in elevated temperatures. Thus, almost all Discs and Collars in Japan are made of ALF due to its traits of cleanness.
 
4.Isolation materials for thermo-couples and cables
Because of ALF’s superior heat resistance properties, ALF can be used as electrical isolation fiber materials of cables used in elevated temperatures.
 
5.Other applications
・Insulation jackets.
・Heat sealing rings.
・Reusable spacers used in vacuum furnaces to treat metals.
・Reusable filters for molten aluminium.
・Abrasives for plastic wetstones.
・Heat-Shielding curtain.
・Etc
 


1. Woven fabric
Type Weave Yarn count (per inch) Used yarn (tex) Unit weight (g/m2) Thickness (mm) Width (mm)
Warp Fill
3025-T Twill 30 25 200 440 0.55 1,000
0909-P Plain 9 9 200 145 0.41 1,000
1111-P Plain 11 11 600 500 0.87 1,000
2525-P Plain 25 25 67 128 0.21 1,000
2626-P Plain 26 26 133 280 0.31 1,000
2220-S Satin 22 20 400 670 0.97 1,000
4018-D Double layers twill 40 18 400 940 1.35 1,000

Note: The thickness is measured in compliance with ASDM D1777


2. Woven tape
Type Weave Yarn count (per inch) Used yarn (tex) Unit weight (g/m) Thickness (mm) Width (mm)
Warp Fill
TP-25S Twill 30 22 200 11 0.53 25
TP-25D Twill 48 11 600 37 1.87 25
TP-50SP Plain 30 22 200 22 0.45 50
TP-50ST Twill 30 22 200 22 0.53 50


3. Sewing thread
Type Yield (tex) Twist (t/m) O.D (mm) bobbin g/corn(ft/corn) Note
T-5760D 600 170 1 500 (2,190) Hand sewing
CT-2560D 330 180 0.5 350 (3,280) Machine sewing
CT-5120D 660 180 0.8 350 (6,570) Machine sewing


4. Braided sleeving
Type I.D (mm) weight (g/m) Picks Roll length (m) Chemical composition(%)
SV-1-XP 0.3

 

16 50 A/S=72/28
SV-1-SP 0.5 1.3 16 50 72/28
SV-1 1 2.3 16 50 72/28
SV-6 6 12 24 25 72/28
SV-20 20 46 84 20-30 72/28
SV-60 60 194 96 20-30 60/40
SV-95 95 380 96 20-30 60/40

Note: Other sizes not mentioned in the table are available.


5. Yarn
Type Form Yield (tex) Twist (t/m) Weight and length g/corn(ft/corn) O.D (mm)
S-640D Two ply 67 90 200   (9,800) 0.3
S-1280D Two ply 133 90 400  (10,090) 0.5
S-1920D Three ply 200 90 400  (6,570) 0.6
S-3840D Three ply 400 90 400  (3,280) 0.7


6. Others
・Code (braided or twisted)
・Chopped fibers(“0.04 to “2)
・Colored yarn (blue, red and black)
・Customized materials


Contact information
GSI EXIM America, Inc Mid-West office
4770 Duke Drive, Suite 395, Mason, OH, 45040, USA TEL 513-459-7232 FAX 513-459-7778
E-mail to: plastic@gsiexim.com
 
 
1065 Avenue of the Americas, New York, NY 10018
Phone:212-684-5760 | Fax: 212-684-5846
© 2010 GSI EXIM AMERICA, INC. All Right Reserved.