AZS-36D Bricks

AZS - 36D Bricks Introduction

AZS - 36D bricks for glass furnace is a white solid formed by pure alumina powder and zircon sand containing zirconia 65% and about 34% silica in the electric furnace and then injected into the mold to be cooled. The AZS bricks structure consists of an eutectoid and a glass phase of corundum and zirconium, AZS fused cast bricks are phased as eutectoids of the corundum phase and the zircon oblique phase, the glass phase is filled between their crystals.

AZS - 36D Bricks Application

With lower SIO2 and Na2O,AZS-36D bricks bear least vitreous phase ,better high-temperature stability and superior corrosion resistance,and reduces fused cast azs-36D refractories contaminations to molten glass

AZS - 36D Bricks Specification
 

AZS - 36D Bricks Using Bricks Precautions in Glass Kiln

1.Irregular Changes in Thermal Expansion

The expansion curve of the AZS - 36D refractory brick has an anomaly near 1000 °C, the internal ZrO2 crystal undergoes a reversible crystal transformation with a large volume change. Therefore, AZS block product containing ZrO2 should not be used at around 1000 °C, and the temperature of refractory AZS - 36D brick is often A region that fluctuates sharply. When baking the kiln, the temperature change at 900~1150 °C should not be too large, generally can not exceed 15 °C / h, requiring a steady temperature rise. AZS - 36D fused cast bricks parts should be protected from blowing cold air and protected by other bricks to prevent cracking.

2.Shrinkage

When casting, there are often shrinkage holes in the casting mouth, azs-36D refractory brick body has more pores and poor density. Therefore, when the glass wall of the glass melting part is made, the shrinkage holes are directed toward the direction of the kiln. When AZS -36D refractory brick is eroded to a very thin level, azs-36D brick will cause a leakage of glass liquid. When azs bricks used in the upper flame space of the kiln, the service life is very long, and there is no problem of running glass. Therefore, the casting port is used outwards to extend the service life.

3.Eutectic

The AZS - 36D refractory brick and the clay brick are in contact with the clay brick. The eutectic phenomenon occurs at a high temperature of 1300 °C. Therefore, when the refractory material is selected, the two refractory materials with severe eutectic phenomena should be avoided from contact with the masonry, such as silica brick casting. Below AZS fused cast bricks ,AZS brick is most susceptible to erosion by the fused cast AZS brick.

AZS - 36D Bricks Packing & Delivery

Consider various and complex transportation conditions,all fused cast azs - 36D bricks products are packing following the highest standards with foam boards between every two blocks, corners protected with triangular hard card boards & multi-strengthened by steel bands and wrapping in plastic film on the outside.

For easy location of different materials,fast cast AZS - 36D bricks for the glass furnace packing lists are places both inside and outside packages, shipping marks are clearly painted on all cases.