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02 · Monolithic Refractories for Rotary Kilns
Anti-Skinning Refractory Castables
- Code
- JXKJ
- Grades
- JXKJ-50 · JXKJ-30
- 70
- Crushing strength MPa
JXKJ-50
Anti-skinning castables are made mainly from high-quality SiC with high-efficiency water reducers and ultrafine micro-powders added. They greatly reduce the frequency of build-up and feature good wear resistance, high strength and good thermal shock resistance.
Physical and chemical properties
| Property | Condition | JXKJ-50 | JXKJ-30 |
|---|---|---|---|
| Al₂O₃ % ≤ | 25 | 35 | |
| SiC ≥ | 50 | 30 | |
| Bulk density | 110℃×24h ≥ | 2.50 | 2.40 |
| Modulus of rupture MPa | 110℃×24h ≥ | 8 | 8 |
| 1100℃×3h ≥ | 9 | 9 | |
| Crushing strength MPa | 110℃×24h ≥ | 70 | 80 |
| 1100℃×3h ≥ | 80 | 80 | |
| Permanent linear change % | 1100℃×3h ≥ | ±0.4 | ±0.4 |
| Water addition for installation % | 5.5-6.5 | 6.0-7.0 | |
| Max. service temperature ℃ | 1400 | 1350 | |
| Application area | Cones of stage-4/5 preheater cyclones, feed pipes, calciner cone, kiln-inlet chamber, etc. | ||
These data are average results of production samples; typical values must not be regarded as maximum or minimum values.
Where product data differ from the goods actually supplied, the specifications in the supply contract or the actual test data of the batch prevail.
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