Balabanovo, Kaluga Region,
RUSSIA, 249037
Tel/fax: +7(48438)6-22-46, 6-22-49
Tel:+7-910-590-67-91
E-mail: stim@obninsk.com
Broad variation by the specific characteristics
The mechanical properties of honeycomb sandwich designs depend on concrete combination of used skins and honeycomb core. It is possible to provide equal strength, varying depth of a used paper and size of a cell. The door made from large cell honeycomb with skins from MDF has integral density of 140 kg / m3 and maintains at compression load about 2000 kg.
Heat conduction of honeycomb core (paper has 120 microns thickness and honeycomb cell is 8 mm) is 0.09 J / (m2 K) and is determined by convective carry of heat. With increase of the honeycomb cell size the heat convection should be augmented.
The physical-mechanical characteristics of honeycomb core depend on a plenty of parameters, but determining are the size of a cell of honeycomb core and honeycomb stuff.
For help it is possible to result strength properties for several groups of honeycomb fillers:
| Stuff | cell size, mm | change of a compressive strength, kg / cm2 |
|---|---|---|
| Craft a paper | 10 - 35 | 1,5 - 0,5 |
| Polymer aramide paper1 | 2,5 - 10,0 | 140 - 20 |
| Glass fibre1 | 2,5 - 8,0 | 60 - 40 |
| Aluminium foil | 2,0 - 10,0 | 66,5 - 3,5 |
| The notices: |
| 1 On base material the polymer resin is marked |
At usage of the same type of a stuff as initial for manufacturing honeycomb, for example aluminium foils, it is possible, changing its thickness and mark, to receive other physical-mechanical characteristics.
Honeycomb core and panels process by special structures for the special purposes (flame resistance, moisture resistance, stability to musty funguses).