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[China]
Trade Verify
Address: Industrial Cluster Area of Xinmi City, Henan Province，China.
Contact name:LI
Zhengzhou Annec Industrial Co., Ltd. |
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Verified Suppliers
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High Acid Resistance Fire Resistant SK34 SK36 SK38 Fire Clay High
Alumina Refractory Fire Brick for hot blast stove
Physical and chemical indexes:
| Item | Unit | Index |
| Bulk density | g/cm2 | 2.31-2.4 |
| Water absorption | % | <0.5 |
| Acid resistance | % | 99.8 |
| Flexural strength | Mpa | 42 |
| Crushing stength | Mpa | 120 |
| Thermal stability | 130°c-20°c | No crackle after 3 times |
Chemical composition (%)
| SiO2 | Al2O3 | K2O | Na2O | CaO | MgO | Fe2O3 |
| 69.8 | 22.5 | 2.7 | 0.95 | 0.82 | 0.82 | 0.49 |
High Acid Resistance Fire Resistant SK34 SK36 SK38 Fire Clay High
Alumina Refractory Fire Brick for hot blast stove is comparable to that of silica bricks, up to 1690~1730℃, but the
softening temperature under load is more than 200℃ lower than that
of silica bricks.
In addition to the high refractory mullite crystals,High Acid Resistance Fire Resistant SK34 SK36 SK38 Fire Clay High
Alumina Refractory Fire Brick for hot blast stove also contain nearly half of the low melting point amorphous glass
phase.
In the temperature range of 0~1000℃, the volume of High Acid Resistance Fire Resistant SK34 SK36 SK38 Fire Clay High
Alumina Refractory Fire Brick for hot blast stove expands uniformly as the temperature rises.
The linear expansion curve is approximately a straight line, and
the linear expansion rate is 0.6%~0.7%, which is only about half of
that of silica bricks.
When the temperature reaches 1200 ℃ and then continue to rise, its
volume will start to shrink from the maximum expansion.
The residual shrinkage of High Acid Resistance Fire Resistant SK34 SK36 SK38 Fire Clay High
Alumina Refractory Fire Brick for hot blast stove leads to the loosening of mortar joints in masonry, which is a
major disadvantage of clay bricks.
When the temperature exceeds 1200°C, the low melting point
substances in the High Acid Resistance Fire Resistant SK34 SK36 SK38 Fire Clay High
Alumina Refractory Fire Brick for hot blast stove gradually melt, and the particles are tightly pressed against each
other due to surface tension, resulting in volume shrinkage.
Production practice in China has proved that before crushing,
high-aluminum clinker is strictly sorted and classified, and stored
in tiers.
The use of bauxite clinker and combined clay fin grinding method
can improve product quality.
Competitive Advantage:
Competitive Price. Make the products competitive in your market.
Abundant Experience. Prevent cracks and twist in bricks.
Different Moulds. Save mould fees for you.
Strict Quality Control. Meet clients’ quality requirement.
Large stocks. Guarantee prompt delivery.
Professional Packing. Avoid damage and secure the goods in transportation
Features
1. as high acid resistance
2. Low water absorption
3. Oxidation at room temperature is not easy
5. High pressure resistance
6. Easy to clean
7. Strong acid and alkali corrosion resistance (parameter>99.8)
8. Convenient for installation
9. Uniform gas and liquid distribution
10. Reliable structure and chemical stability
11. Long service life, more than 3 years warranty
12. High Working temperature: 1650C-1720C
13. Accurate size, small Tolerance
Zhengzhou Annec Co.,Ltd. is a national hi-tech company, and is
accredited with ISO9001:2008 quality control system standards,
ISO12001:2004 environmental control system standards, and
GB/T28001-2011 HAZOPS. Annec has set up a thorough and effective
management system with practical considerations for her employees
and community, and is persistent in promoting employee self-value
and product quality. With these efforts, Annec was awarded the
prestigious 2012 Zhengzhou Mayor Quality Prize.
