The 2-Minute Rule for alumina crucible
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Phosphate-bonded high alumina brick is preferred in lots of aluminum furnace linings as the phosphate leads to the brick being resistant to wetting and penetration by molten aluminum. Phosphate-bonding also enhances the refractory properties by rising density, lowering porosity, raising strength, and abrasion resistance.
When blended with various levels of magnesia and higher features of fused alumina these brick characteristics present Price-productive refractory overall performance for that steel ladle.
2. With the refractory brick with the Al2O3 content material underneath 70%, the refractoriness under load is dependent upon the quantitative proportion of crystal section and liquid phase, it boost with the increase in the quantity of mullite.
The reduction of impurities articles is favor of advancement of slag resistance. In the meantime, the improvement of refractory brick density, the reduction of porosity, They're the effective evaluate to improve the slag resistance.
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Dimension and Condition: Ensure the bricks can be found in the sizes and designs needed for your personal furnace or kiln lining.
A phosphate chemical addition reacts with cost-free alumina from the brick combine to kind an aluminum ortho-phosphate chemical bond through medium temperature curing. Firing a phosphate-bonded brick to higher temperatures ends in a composition which includes both phosphate and also a ceramic bond.
Requesting samples and visiting the plant (or verifying by way of video clip) is highly advised for bulk discounts.
Only when the changeover into the refractory brick which is composed Practically entirely of corundum firebrick, that is definitely to state, once the Al2O3 material is high alumina mortar greater than 95%, high toughness at high temperature is clearly enhanced.
Iron and Steel Market: Perfect for blast furnaces, incredibly hot blast stoves, and ladles due to their fantastic thermal security and resistance to slag erosion.
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When sourcing high alumina bricks, especially for Worldwide procurement, take into account the next:
Qualities of high alumina brick involve outstanding refractoriness, Charge-efficient functionality, high toughness, and abrasion resistance, resistance to acidic slags, and strong resistance to thermal shock. The physical Homes of high alumina brick refractories is usually tailored to enhance efficiency in selected purposes.