– Do not raise the temperature beyond what is strictly necessary.
– To control the melting process.
– Keep the metal 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.
– Remenber 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 no anomalous vertical expansions in the lining.