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The Sort of Fused Cast AZS Block

Date:2017-06-15 14:51 From:Zhengzhou Sunrise Refractory Author:sunrise
Fused cast AZS block is the largest consumption species of fused refractory material at present. Glass erosion resistance is strong, with different composition of the glass can adapt. The product

categories of fused cast AZS block are as follows:

1. According to zirconia content, fused cast AZS block is divided into three grades: 33 # AZS, 36 # AZS, 41 # AZS.

In general, with the improvement of zirconium dioxide content, baddeleyite mineral content increased, improved glass erosion resistance and high temperature softening property.

2. By casting method, AZS is divided into four types: ordinary casting (PT), tilted casting (QX), Quasi no shrinkage casting (ZWS), no shrinkage casting (WS).

Cast hole is a scourge of fused cast AZS block. When using the general pouring brick, cast hole will account for a third to half of the brick. In order to reduce or remove the cast hole, often used by

pouring casting hole cut off without shrinkage cavity brick, increase the density of fused cast AZS block, enhanced ability to resist erosion.

3. According to production process method, products are divided into oxidation (Y) and reduction method (H) oxidizing atmosphere. Main impurity in fused cast AZS block is Fe3 +, Ti4 +, glass

phase seepage temperature is high, greater than 1400 ℃. Reducing atmosphere,  main magazine in AZS is Fe2 +, Ti3 +, more than 1100 ℃, fused cast AZS block is easy to be eroded. Produce

stones, stripes and bubble in the glass. 

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