JM23/K23 Mullite insulation brick is mainly composed of mullite and a small amount of binder, it is white, the alumina content is between 38% and 44%, and the refractoriness is 1350°C. It is used as the inner lining and insulation layer of small and medium-sized industrial kilns.
| Στοιχείο/βαθμός | JM-23 | ||
|---|---|---|---|
| ω (Al2O3)/% | 42 | 45 | 48 |
| ω (Fe2O3)/% | 1.2 | 1.0 | 1.0 |
| Πυκνότητα χύδην (g/cm³) | 0.6 | 0.8 | 1.0 |
| Δύναμη ψυχρής θραύσης/MPa | 1.5 | 2.3 | 3.0 |
| Μόνιμη γραμμική αλλαγή/% | -0.55 | -0.4 | -0.3 |
| 1260℃×12h | 1300℃×12h | 1300℃×12h | |
| Θερμική αγωγιμότητα 350℃ ≤/[W/(m-K)] | 0.19 | 0.24 | 0.31 |
1.Excellent insulation performance 2.Stable and reliable performance 3.High compressive strength 4.Lightweight, easy to install
1. Power industry: thermal power plant boilers, chimneys and other equipment 2. Petrochemical industry: insulation layer of chemical reactors in distillation towers and storage tanks of petroleum refining equipment 3. Glass industry: for example, lining insulation layer of glass kilns 4. Ceramic kilns: insulation layer of kilns in the ceramic industry