Isostatisch gepresste Steine

Isostatically Pressed Bricks

Isostatic pressing  provides a very good homogeneous and solid, i.e. strongly densified,  brick structure due to the even compression during the manufacturing process. The shaping technologies normally used in the refractory industry, such as hydraulic pressing,, hand ramming, slip casting and vibration casting do not achieve this even distribution or the densification of each raw material component.

Isostatically pressed products are characterized by their outstanding material properties, e.g. a very high corrosion resistance against glass-type melts. The main areas of use are the glass contact areas in the glass fiber industry (textile glass, glasswool and mineral wool industries). In these industries isostatically pressed products with contents of zirconium, chromiumoxide and chromium corundum are used.

Isostatically pressed products with contents of zirconium mullite, chromiumoxide and chromium corundum were developed many years ago and successfully introduced for use in soda-lime glass and silica melting plants. Certain high stress zones in glass melters often show premature wear, together with an increase in the number of glass faults and a diminished melting capacity when these areas are lined with AZS material.  Extremely longer life times and considerably improved glass qualities are achieved by the use of isostatically pressed products at these weak spots. These products are almost in standard use these days for the lining of glass melting plants, and contribute considerably to diminishing production costs and improved glass quality, and overall, the profitability of the plant.