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| Using high-purity alumina and zircon as the main ingredients,
alumina-zircon bricks are produced using a highly quality-controlled system. These
refractories have high corrosion resistance and pollution resistance against molten
glass, and shows excellent performance in alkaline vapour corrosion and spalling
resistance. They are used in glass furnace melters' super structure, such as front
and back walls and subpaves. For forehearths, they are used in the super-structures
of covers, burner blocks, and in parts which come into contact with glass, such
as stirrers, spouts, plungers and the sleeves. We offer ZM-P
(press-molded) or ZM-C (cast-molded) depending on the shape. |
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| A refractory made of high-purity zircon (ZrO2-SiO2),
this mineral substance is stable up to 1600°C, and shows particularly efficient
acid-slag corrosion resistance. They are also stable when in contact with other
bricks at very high temperature. These are widely used for the borosilicate glass
furnaces at parts which come into contact with glass such as the paves, feeder-parts
and walls of the superstructure. For general glass bottle/ flat glass melting
furnaces, they are used as TC bricks of melter crowns, partition brick between
silica brick and AZS fused cast refractories bricks, and for sub-pave bricks for
melter furnace bottoms. ZR-UP is press-molded, dense and corrosion
resistant which can be widely applied from the sub-paves to the super-structures.
ZU-UC is cast-molded, suitable for irregular-shaped bricks which
are hard to press mold. They are suitable for melter crown TC bricks. |
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| Using high-purity materials as main ingredients, sillimanite
refractories are produced in a highly quality-controlled system. These refractories
have high corrosion resistance and pollution resistance against molten glass,
and show excellent alkaline vapour corrosion and spalling resistance. SR-2792N
is particularly excellent against molten glass pollution with high corrosion resisitance
and lower-blister potential. It is suitable for the glass-contact parts such as
the sleeves, plungers, orifices, superstructures of forehearths. SR-2782
is particularly excellent in spalling-resistance and is suitable for
superstructures of forehearths and Tuyere bricks. |
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| Alumina-zircon bricks |
 |
| Product |
ZM-P
(Press-mold) |
ZM-C
(Cast-mold) |
| Chemical composition(%) |
SiO2 |
10 |
11 |
| Al2O3 |
68 |
67 |
| Fe2O3 |
0.2 |
0.2 |
| TiO2 |
0.2 |
0.2 |
| ZrO2 |
21 |
21 |
| Physical properties |
Refractoriness(SK) |
35 |
35 |
| Apparent specific gravity |
3.74 |
3.65 |
| Bulk specific gravity |
3.10 |
2.95 |
| Porosity(%) |
17 |
19 |
| Compressive strength(MPa) |
115 |
110 |
| Thermal expansion(%, at1,000°C) |
0.57 |
0.60 |
| Refractoriness under load(T2,°C) |
1660 |
1660 |
| Weight calculation rate |
3.05 |
2.95 |
| Typical applications |
Superstructure
of melter,
Sub-pave,
Superstructures of forehearth,
Stirrer, Spout |
|
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| Zircon |
|
| Product |
ZR-UP
(Press-mold) |
ZR-UC
(Cast-mold) |
| Chemical composition(%) |
SiO2 |
33 |
33 |
| Al2O3 |
0.6 |
1 |
| Fe2O3 |
0.3 |
0.4 |
| TiO2 |
0.7 |
0.6 |
| ZrO2 |
65 |
65 |
| Physical properties |
Apparent specific gravity |
4.55 |
4.54 |
| Bulk specific gravity |
3.48 |
3.47 |
| Porosity(%) |
23.5 |
24 |
| Compressive strength(MPa) |
100 |
90 |
| Residual expansion/contraction(%,1,500°Cx2hr) |
0.04 |
0.2 |
| Thermal expansion(%, at1,000°C) |
0.36 |
0.42 |
| Refractoriness under load(T2,°C) |
1650 |
1650 |
| Weight calculation rate |
3.6 |
3.5 |
| Typical applications |
Melter crown,
Partition bricks for crowns skew blocks,
TC blocks for sub-paving and crown |
|
|
| Sillimanite bricks |
|
| Product |
SR-2792N |
SR-2782 |
| Chemical composition(%) |
SiO2 |
25 |
40 |
| Al2O3 |
73 |
57 |
| Fe2O3 |
1 |
1 |
| TiO2 |
0.5 |
1.5 |
| CaO |
0.1 |
0.1 |
| MgO |
0.15 |
0.1 |
| Physical properties |
Refractoriness
(SK) |
38 |
36 |
| Apparent specific gravity |
3 |
2.88 |
| Bulk specific gravity |
2.35 |
2.30 |
Porosity
(%) |
22 |
20 |
Compressive strength
(MPa) |
70 |
70 |
Permanent linear change
on reheating
(%,1,500°Cx2hr) |
-0.4 |
-0.4 |
Thermal expansion
(%, at1,000°C) |
0.49 |
0.47 |
Refractoriness under load
(T2,°C) |
1630 |
1520 |
| Weight calculation rate |
2.3 |
2.3 |
| Typical applications |
Tube,
Plunger,
Orifice,
Superstructures of forehearth
|
Superstructures of forehearth,
Tuyere brick |
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