Answer:
- Do not raise the temperature beyond what is strictly necessary.
- To control the melting process.
- Keep the metal molten for the shortest possible time.
- Maintain the shortest possible time the furnace in a sloping position or spillage with molten metal.
- Perform the necessary strain and return the furnace to its work position.
- If it is possible, empty the furnace completely, without leaving feet of baths.
- Not desulfurize in the furnace with a silicon lining.
- Remember that in the crown:
- Minor degree of sintering.
- Impacts of the metallic load.
- Regrowth of slag
- Avoid loading dirty and rusty scrap.
- To verify that the returns are exempt from moulding sand.
- To make sure that no scraps contain aluminium.
- To avoid the additions of ferrosilicon with high aluminium content.
- Abrade the furnace after every load.
- Not work with full power with low levels of bath.
- Assure that the whole load penetrates in the broth before covering the furnace.
- To verify that there are no anomalous vertical expansions in the lining.