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Address: Group 4, Chuling Village, Chaohua Town, Zhengzhou, Henan, China
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Henan Hongtai Kiln Refractory Co.,Ltd. |
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Fused Cast AZS Brick 33, 36, 41 Refractory Bricks for Glass Furnace
Fused Cast AZS Brick (also known as AZS brick) is made by the process of completely melting the raw material firstly and then cast in the mold, finally cooling, solidification. This product shrinkage should be paid special attention in using, which is caused during the volume shrinkage in the condensation process. AZS brick casting methods divide into ordinary casting, tilting casting, no shrinkage casting and quasi-no shrinkage casting. AZS brick with different casting methods can meet the use requirements of various parts in the ceramic frit furnace, spent flower alkali furnace, glass kiln.
Fused Cast 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.
Fused Cast AZS Brick 33, 36, 41 Refractory Bricks for Glass Furnace
Different casting methods can produce various shapes and sizes AZS brick for different areas of glass furnaces
| Item | Behaviors | |||
AZS-33# ER 1681 | AZS-36# ER 1685 | AZS-41# ER 1711 | ||
Chemical Composition | Al2O3 | ≥50.00 | ≥49.00 | ≥45.00 |
ZrO2 | ≥32.50 | ≥35.50 | ≥40.50 | |
SiO2 | ≤15.50 | ≤13.50 | ≤13.00 | |
Na2O+K2O | ≤1.30 | ≤1.35 | ≤1.30 | |
Bulk density g/cm3 | ≥3.75 | ≥3.85 | ≥4.00 | |
Apparent Porosity % | ≤1.2 | ≤1.0 | ≤1.2 | |
Cold Crushing Strength Mpa | ≥300 | ≥300 | ≥300 | |
Exudation Temperature of Glass Phase | ≥1400 | ≥1400 | ≥1410 | |
Bubble Separation Ratio(1300°C×10h) | ≤1.2 | ≤1.0 | ≤1.0 | |
Anti-corrosion rate of glass liquid 1500°C×36h (mm/24h)% | ≤1.4 | ≤1.3 | ≤1.2 | |
Apparent density (g/cm3) | PT(RN RC N) | ≥3.50 | ≥3.50 | ≥3.70 |
ZWS(RR EVF EC ENC) | ≥3.65 | ≥3.70 | ≥3.90 | |
WS( RT VF EPIC FVP DCL) | ≥3.75 | ≥3.8 | ≥4.00 | |
Fused Cast AZS Brick 33, 36, 41 Refractory Bricks for Glass Furnace
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.
Fused Cast AZS Brick 33, 36, 41 Refractory Bricks for Glass Furnace
AZS fused cast zirconia corundum refractory bricks for glass
furnace 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.
Fused Cast AZS Brick 33, 36, 41 Refractory Bricks for Glass Furnace
Fused cast AZS brick for glass furnace and other industrial kiln,
the using part of glass melting furnace is the masonry upper wall,
small stove arch, small stove stack, tongue arch and chest wall,
etc..
Application of fused cast AZS brick should pay attention to the
following issues:
(1) irregular changes of thermal expansion.
The expansion curve of fused cast AZS brick in 1000 ℃ near a
section of abnormal, its internal ZrO2 crystal reversible crystal
transition, a larger volume change, therefore, containing ZrO2
products should not be used at temperatures around 1000 ° C, there
are often sharp fluctuations in the site. Oven roast kiln, the
temperature change in the 900 ~ 1150 ℃ can not be too large,
generally can not exceed 15 ℃ / h, requires a smooth warming. Some
parts to prevent blowing cold, need to use other brick protection,
to prevent the burst.
(2) shrinkage casting molding, the casting often appear shrinkage,
where the brick hole more, the density is poor, so in the puzzle
glass melting part of the wall, will shrink into the kiln
direction, if cast Mouth outward, when the brick body erosion to a
very thin, it will cause leakage of glass leakage accident. In the
upper part of the kiln in the use of flame space, the service life
is very long, it will not run the glass problem, so will be used to
extend the mouth to extend the service life.
(3) fused cast AZS brick and fire clay refractory brick contact
with masonry, will occur eutectic phenomenon when up to high
temperature 1300 ℃ , therefore, When choose refractory material,
should avoid the eutectic phenomenon of two refractory contact
masonry, Such as if silica brick below the fused AZS brick, the
most vulnerable to the erosion of fused cast AZS brick.
Fused Cast AZS Brick 33, 36, 41 Refractory Bricks for Glass Furnace
Packaging Details:
1 pallet + waterproof cover+ fixed belt
2 pallets: 1*1m,0.93*0.93m
3 tray weight: 1.6~2.0ton
4 packaging according to customer service requirements
Henan Hongtai Kiln Refractory Co., Ltd. locates at centre of China.
The major railway intersection of Jingguang and Longhai is close to
Zhengzhou Xinzheng International Airport. To expand its import and
export business, Hongtai has established long-term business with
dozens of customer all over the world and maintained good cooperation with them.
The main products are as follows: fused cast AZS brick 33#,36#,41#,
glass furnace fireclay bottom block, mullite brick, zircon brick,
alumina bubble brick, sillimanite brick, corundum brick, low
porosity fireclay brick, high alumina brick, all kinds of glass
furnace ramming masses, sealing materials, building fireclay, etc.
1. Minimum Order Quantity?
MOQ is 0.5 tons or 100 pcs.
2. What quality of the product can you offer?
Our products can be customized according to your requirment.
3.Can you do Customization & Reproduction if I provide a photo
or drawing?
Yes, we do Customization & Reproduction service, please check
the details and sample above.
You need to send the pictures to our email, tell us the
specification you want,
then we will quote you exact price. We will take photos for you
check.
4. Does the packaging safe and arrive in good conditions?
Yes, Safe Packing guarrantee, all the products will arrive your
door under good conditions.
5. How long does it usually take to deliver the product?
We'll make the shipment to you immediately. Accurate delivery time
depends on the specific quantity and the difference of materials.
6.For the formal quotation,what shall be informed?
Brick size,purchasing quantity,material
composition(index),furnace type.
