Jundao (Henan) New Materials Co.,Ltd.
Jundao（Henan）New Materials Co.,Ltd.
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The hot metal pre-treatment desulfurization lance is a component of the hot metal desulfurization conveying desulfurization agent injection by the injection method.
The hot metal pre-treatment desulfurization lance is composed of an inner metal structure (a seamless steel pipe is placed in the middle, which is a channel for injecting the desulfurizing agent) and an outer layer of mullite corundum castable. It is produced by vibration casting method of a combination of a professional production line.
The hot metal pre-treatment desulfurization lance has the characteristics of many production processes and long production cycle, and has excellent performances such as corrosion resistance and thermal shock resistance in use.
| Item | JD-1 | JD-2 | |
| Al2O3(%)≥ | 55 | 68.12 | |
| Bulk density(g/cm3)≥ | 2.60 | 2.68 | |
| Bending strength(Mpa) ≥ | 110℃×24h | 12 | 14.3 |
| 1350℃×3h | 8 | 9.4 | |
| Cold crushing strength(Mpa)≥ | 110℃×24h | 70 | 80.2 |
| 1350℃×3h | 70 | 75.6 | |
| Linear change rate(%) | 1350℃×3h | +0.5,-0.1 | +0.3 |
