JM28 uses high-purity materials, adding high-temperature stabilizers and corrosion-resistant materials. Thus further increasing the density and compressive strength. It is often used in lining and insulation layers of high-temperature industrial kilns.
| Στοιχείο/βαθμός | JM-28 | ||
|---|---|---|---|
| ω (Al2O3)/% | 64 | 65 | 66 |
| ω (Fe2O3)/% | 0.75 | 0.65 | 0.65 |
| Πυκνότητα χύδην (g/cm³) | 0.8 | 0.8 | 1.0 |
| Δύναμη ψυχρής θραύσης/MPa | 2.3 | 2.8 | 3.3 |
| Μόνιμη γραμμική αλλαγή/% | -1.0 | -0.8 | -0.7 |
| 1500℃×12h | 1500℃×12h | 1500℃×12h | |
| Θερμική αγωγιμότητα 350℃ ≤/[W/(m-K)] | 0.28 | 0.32 | 0.34 |
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