GKN SINTER METALS
 

SIKA-R...AS Metal Membranes

SIKA-R...AS is a high porous ASymmetrically designed metallic membrane. The thin layer giving the filter its performance is coated on a coarser SIKA-R support structure. Metal membranes can be manufactured to all dimensions from SIKA-R...AX and SIKA-R...IS. The membrane's two functions, strength and particle retention, are separated from each other – leading to a new type of filter. The coarser support material renders the mechanical stability without increasing the pressure drop of the filter system considerably. This filter-active membrane was developed as a surface filter and allows pore sizes from 0.1 µm to 3 µm. The thin coating is connected to the support structure by sintering.

SIKA-R...AS qualities differ from the known properties of SIKA-R materials in the following points:

  • Up to 4 times higher flow rate
  • Surface filter
  • Improved back flushing performance
  • Longer service life in the process

Chemical Resistance and Thermal Stability

As a general rule, the chemical and thermal characteristics of sinter metals are the same as
those of the solid materials used.. However, the size of the specific surface area should be taken
into account when assessing the chemical properties of any high-porosity component (sinter metal).

SIKA-R...AX is manufactured from the following materials:

  • Stainless steels 1.4404 (AISI 316 L / B), 1.4306 (AISI 304 L), 1.4539
  • Titanium
  • Monel
  • Inconel 600 / 625
  • Hastelloy C 22, C 276 and X
  • Special materials