|
Products:
-
Partitions
-
Internal Walls
-
Internal Doors
-
Floors
|
 |
Advantages Of
Honeycomb in Railway coaches are :
Very Low Weight
- Reduces Fuel Consumption /
Reduces Wear & Tear
High Stiffness
- Reduces/ Eliminates supporting
framework.
Improved appearance -
Smooth surface & allows use of
decorative sheets.
Long life
- Excellent fatigue & corrosion
Resistance.
Safety
- Fire resistance.
Rapid Fitting
- Modular Construction &
Interchangeable.
Versatile
- Wide range of Shapes feasible.
Honeycomb sandwich
structures which are used in modern train construction, provide
significant cost reductions. The reduction in the weight of the
frame allows high speeds, whilst reducing energy stopping inertia.
The high stiffness of the materials means that supporting framework
becomes unnecessary, increasing the passenger room in the train. The
railway coach partitions which are made from panels, are quick to
fit and interchangeable. Therefore if there is any damage to the
panels they can be replaced easily. The use of honeycomb structures
allows for higher speed, improvements in ride comfort, ease in
maintenance, reduction of energy consumption, effective
manufacturing cost.
Core Specification
For Railway:
A.
Core Specification:
1. Material
: 3003 + Aluminum Foils.
2. Aluminum Foil Thickness :
0.068 mm
3. Cell size
: 6.3mm
4. Core density : 85-100 kg
/m3.
B. ADHESIVES
Specification
a) Viscosity
at 20 deg c: 1400
b) Shear
Strength after curing (24 hours at 1200c) 3.0 kg/ mm2.
c) After
curing in water at RT for 10 days: 2.6 kgf/mm2.
C.
Panel
Specification
a) Panel Thickness :20MM,
SIZES: As per drawings.
b) Face Sheet : HPL Sheet
c) Colour : Suede
Finish of shade
d) Face Sheet Thickness
i) Top Sheet :
1.6mm
ii) Bottom
Sheet : 1.6mm
D.
HPL Sheet Specification
|
Sl. No. |
Test Conducted |
Specified Values |
Observed Result |
|
1. |
Immersion in
Boiling water |
|
a) Increase in thickness |
11.5% |
3.52% |
|
B) Blistering & Delimitation |
Shall not be visible |
No blistering |
|
2. |
Flame Test |
30 second Max. |
25 second. |
|
3. |
Flexural Strength |
80 MPA Min |
110 MPA |
E.
Panel Strength
a) Compression
(Established)
(Distributed load):9.6 Mpa.
b) Peel
Strength (Metallic): 36.88 Kg / Cm. |
