ALWA POR ALUMINIUM

  • is made of aluminium and a resin binder.

  • is porous and is produced as a block or slab in our factory in Gronau, Germany.
  • has a surface structure from very smooth to good depending on the pore size and is characterized by a good porosity.

  • is easily machinable and can be polished to a shiny surface.
  • is particularly suitable for thermoforming and other vacuum processing, and is also suitable for

  • hot steam or water steam processing (EPS/EPE/EPP),
  • vacuum clamping and gripper technology,
  • filter applications,
  • air film sliding technology,
  • aeration of aquaria, fish ponds and sewage treatment plants,

  • foundry and many other applications.

Product video ALWA POR

Technical data:

Characteristic  Norm Unit Value
ALWA POR ALUMINIUM 1  very smooth surface

ALWA POR ALUMINIUM 2          smooth surface

ALWA POR ALUMINIUM 3          good surface (NEW)

ALWA POR ALUMINIUM 4          good surface

ALWA POR ALUMINIUM 5          good surface

Average pore diameter µ

µ

µ

µ

µ

~ 6 – 9

~ 12 – 15

~ 30

~ 50 – 53

~> 60

Total porosity ALWA POR ALUMINIUM 1, 2 and 4 % ~ 17 – 20
Total porosity ALWA POR ALUMINIUM 3 and 5 % ~ 30
Density g/cm³ ~ 1.8
Hardness (dot-matrix)  DIN 53505 Shore D ~ 87
Flexural strength  DIN 53452 M P A ~ 35
E-Module  DIN 53457-B3 M P A ~ 9600
Impact strength  DIN 53453 kJ/m² ~ 11
Thermal coefficient of linear expansion  DIN 53752 °C-1 x 10-6 ~ 27,2
Thermal conductivity  DIN 52612 Wm-1 °C-1 ~ 19
Long-term temperature resistance (mould temperature)  DIN 53462 °C ~ 190
Glas transition temperature (TG) °C ~ 300

Delivery forms: Blocks and slabs are available in different wall thicknesses (steps of 10 mm)

200 x 300 x 20 – 150 mm
500 x 500 x 20 – 150 mm
700 x 600 x 20 – 130 mm (NOW available)
1000 x 500 x 20 – 150 mm
1200 x 600 x 20 – 130 mm (NOW available)
The slab tolerance values are between 0 – 0.6 mm in length, width and thickness.

Please consider the different thermal coefficients of linear expansion if ALWA POR ALUMINIUM is screwed on a slab or something is screwed on ALWA POR ALUMINIUM (slab, block or mould). Drill larger holes for the screws into the material, so that the different expansion coefficients can level out. Screw connections which are used several times should be equipped with threaded sleeves.

Non-binding milling data:

R10 ball nose ~ 7000 RPM feeding speed ~ 5000 mm/min.
R 4  ball nose ~ 7000 RPM feeding speed ~ 3500 mm/min.

Downloads

Product brochure: POROUS SLABS AND BLOCKS ALWA POR