Preparation & compaction
- Compact pneumatically in one slow bottom-to-top pass; avoid repeated up/down movement that separates grains. Maintain air pressure, seals and stroke springs.
- Provide 3–4 mm former holes at 150 mm centres for moisture release.
- Use clean, dense scrap; avoid low-grade, fine or high-silica sponge iron.
- Inspect coil coat and pads; the published replacement preference is every three months.
Published operating references
| First/sinter heat ramp | 100 °C/hour |
|---|---|
| First 60 minutes | Former at 350–400 °C; avoid melting scrap |
| Sintering heat duration | At least four hours |
| Tapping reference | 1610–1630 °C; casting reference 1590 °C |
| Published maximum | 1670 °C |
| Heat/unloading reference | 1 hour 50 minutes |
Application review
Record temperature and lining performance heat by heat. The source favours boron oxide premix for lining life.
Confirm the source’s unclear compaction-duration wording and opening-carbon units with our team. Any cooling-fan changes during the initial sintering period also require furnace-specific review.