Alumina-Zirconia-Silica (AZS) Bricks for Refractory Furnace

Alumina-Zirconia-Silica (AZS) Brick is the most widely used materials both in glass contact and superstructure of glass melting furnaces. They can be classified by their zirconia content, which basically defines their corrosion resistance.

NR-33 32% - 34% ZrO2: The reference category of fused-cast industry. Main applications include glass contact (paving tiles, working-end walls) and superstructures.

NR36 36% ZrO2: With its improved corrosion resistance and combined with the "reinforced filling" process, the optimum choice for melter sidewalls application.

NR41 41% ZrO2: with the highest corrosion resistance within the AZS family, this type of material is used for all demanding glass contact applications in the void free configuration : electrode blocks, submerged walls, throats, and in some cases melter sidewalls. Available as well, for sidewall application, in the specific "reinforced filling" version.

Besides, the fused cast AZS bricks can be devied into different types according its casting techniques, PT [normal casting], QX [tilt casting ] , ZWS [reinforced casting ] and WS [void-free casting].

WS while casting, the casting size is bigger than that is required. Most of the voids concentrate in the header which is subsequently cut off with a diamond saw, and then the block in required size is left, most used in side wall and flow.

PT The brick made by normal casting has normal shrinkage void; it is often used in the upper structure of furnace and the interface parts which touch molten glass.

ZWS while casting, the casting size is bigger than it is required. Most of the voids concentrate in the header which is subsequently cut off with a diamond saw, and then the block in required size is left, most used in side wall.

QX by tilt casting, shrinkage voids focus on one side, while the other side is dense. This kind of bricks are usual sabity is located towards the bottom, and of the block that used for sidewalls.

APPLICATIONS
AZS 33#:
Sidewalls, breast walls, ports, pavers, etc. In glass furnace
AZS 36#:
Position in contact with molten glass, such as doghouse, sidewalls and pavers of melters.
AZS 41#:
Throats, doghouse, comers, sidewalls, electrodes, bubbler blocks, etc.

Alumina-Zirconia-Silica (AZS) Bricks for Refractory Furnace

  Alumina-Zirconia-Silica (AZS) Bricks for Refractory Furnace

Different casting methods can produce various shapes and sizes AZS for different areas of glass furnaces

PT-The shringkage cavity in brick disperses under the casting scar.

QX-The shringkage cavity in brick disperses at one end of the brick,a completely dense zone forms at another end.
ZWS-This casting method is similar with "ws",merely a few shrinkage voids remain in upper part of the body.
WS-No shrinkage cavity exists in brick body.

Alumina-Zirconia-Silica (AZS) Bricks have passed the ISO international certified. High purity raw material, scientific formula, advanced technology and professional guide all contribute to our qualified azs blocks production. Over 30 years producing and marketing experience, we have developed stable customer base overseas and kept long-term cooperation. Need refractories for high temperature furnace fuel? Contact us, We will never let you down.

Alumina-Zirconia-Silica (AZS) Bricks Packaging & Shipping

The bricks are packed on wooden pallet with papers in each layer and PP film wrapped outside of the whole pallet.

Alumina-Zirconia-Silica (AZS) Bricks for Refractory Furnace

1. Quality assurance,fused cast AZS block use high grade raw material. All products are ISO qualified.

2. Provide professional designing solution, field technical assitance and any other consulting.
3. Price advantage, provided by manufacturer directly,save much intermediate fees.
4. Professional and experienced service team, specialized in refractory production since 1986.
5. Large production capacity, short lead time of products.
6. 24*7 online service.
7. OEM service available.