Refractoriness (℃): | 1770< Refractoriness< 2000 |
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Feature: | Long Time Materials |
Type: | Refractory Material |
Samples: |
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Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Payment Method: | |
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Initial Payment Full Payment |
Currency: | US$ |
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Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Phosphate-bonded high alumina brick is a kind of fire-free brick. High alumina brick made by semi-dry press forming and heat treatment. The raw material is dense super grade bauxite clinker, and the concentration of 42.5%~50% phosphoric acid is the binder. The heat treatment temperature is 400~600ºC.
According to the use requirements, adding kyanite, sillimanite, pyrophyllite and silica to the ingredients can prevent the volume shrinkage of phosphate bricks during use; Adding fused corundum and mullite in the form of matrix can improve the softening temperature and erosion resistance under load.
The Physical and Chemical Index of Special Phosphate Bonded Refractory High Alumina Bauxite BrickItem | Ordinary type | Phosphate bonded abrasive brick | Special phosphate brick | Phosphate composite brick | |
KYP-75 | KYPA-75 | KYPT-1 | Heavy part | Light part | |
Al2O3 % | 75 | 75 | 80 | 75 | 55 |
Fe2O3 ≤ | 2.1 | 2.1 | 1.8 | 2 | 1.5 |
Refractoriness ºC | 1770 | 1770 | 1790 | 1770 | |
Density kg/m3 | 2.7 | 2.75 | 2.9 | 2.8 | 1 |
CCS Mpa | 70 | 75 | 80 | 75 | 5.5 |
RUL ºC ≥ | 1350 | 1300 | 1520 | 1350 | --- |
Thermal shock resistance1100ºC water cycle | 20 | 20 | 15 | --- | --- |
CCS at the bonded parts between heavy and light weight | --- | --- | --- | 15 | 15 |
Characteristics of phosphate high aluminum brick:
1) High temperature resistance.
2) High strength at room temperature and high temperature, excellent wear resistance.
3) Cold and heat resistance, excellent thermal shock resistance.
4) Good chemical erosion resistance.
5) The disadvantage is that the load softening temperature is low, which limits its range of use.
Company main products and profiles:
Our total annual production capacity is about 100,000 tons of dense-shaped refractory product, and 100,000 tons of monolithic refractory product.
We have three tunnel kilns for silicon-aluminum dense bricks and one new plant for the monolithic refractory.
We're sure our custom-made products and professional services will bring you a stable quality supply and more profit.
Our Laboratory and R&D Center
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