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Parameters
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Comments
| Refractoriness (Degree):: | Common (1580°< Refractoriness<1770°) | SiO2(%)≥: | 0.7 |
|---|---|---|---|
| Bulk Density G/cm 3≥: | 2 | Cold Crushing Strength MPa 1110℃x3h≥: | 15 |
| Fe2O3(%),≤: | 0.5 | Apparent Porosity(%): | 26 |
| Linear Changing After Burnt(%): | 0-1.6 | Al2o3(%),≤: | 95 |
| Max.grain Size Of Aggregate(mm): | 5 | Amount For Construction: | 2300 |
Corundum Ramming Mass
Features
1. High volume stability.
2. High compactness.
3. Strong resistance to erosion.
Description
This product uses high-quality high-alumina, corundum and spinel, fused and high purity magnesite as the main raw materials, add a variety of different binding agents and special properties of the fine powder materials, such as by the fine ratio and mixing made.
Specification
Aluminum-magnesia ramming material, high-alumina (or corundum) – silicon carbide – carbon ramming material, alkali refractory ramming material and zirconium mullite ramming material.
Applications
Applicable to all kinds of carbon steel, low manganese steel, alloy steel, alloy cast iron, high-speed tool steel and stainless steel.
Physical and chemical index
| Items | HDD-1 | HDD-2 | HDD-3 | HDD-4 | HDD-5 | ||||
| Chemical composition(%) | AI203≤ | 95 | 96 | 96 | 97 | 90 | |||
| Si02≥ | 0.7 | 0.6 | 0.6 | 0.5 | 0.4 | ||||
| Fe203≤ | 0.5 | 0.5 | 0.4 | 0.4 | 0.8 | ||||
| Cold Crushing Strength (Mpa) | 1300℃x3h After firing at | 15 | 15 | 10 | 10 | 25 | |||
| Apparent porosity(%) | 1300℃x3h After firing at | 26 | 26 | 25 | 25 | 23 | |||
| Linear changing after burnt(%) | 1300℃x3h After firing at | 0 –1.6 | 0-1.2 | 0 –1.0 | |||||
| Bulk density (g/cm3) | 1300℃x3h After firing at | 2 | 2 | 2.1 | 2.1 | 2.2 | |||
| (℃)Refractoriness | 1780 | 1780 | 1780 | 1780 | — | ||||
| Max. grain size of aggregate(mm) | 5 | 4.5 | 4.5 | 4.2 | 4.2 | ||||
| Amount for construction | 2300 | 2300 | 2300 | 2400 | 2400 | ||||
| Mathod of construction | Jolt or ramming | ||||||||
Note: General cargo is bulk mixture, all products must do waterproof measures during the transportation and storage, it is prohibited to use if the goods appear agglomeration.