Recycling smelting method of scrap metal
The invention provides a recycling smelting method of scrap metal. The recycling smelting method is characterized by comprising the following steps: taking the scrap metal in weight proportions, namely 45.00-55.00% of scrap copper alloy, 40.00-50.00% of scrap steel and 3.00-5.00% of scrap aluminum a...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a recycling smelting method of scrap metal. The recycling smelting method is characterized by comprising the following steps: taking the scrap metal in weight proportions, namely 45.00-55.00% of scrap copper alloy, 40.00-50.00% of scrap steel and 3.00-5.00% of scrap aluminum alloy, adding into an induction smelting furnace for melting, adding a proper amount of a modifier into a melt, thoroughly stirring, slagging off and standing, then casting in an iron mould to obtain an ingot, putting the ingot into a heating furnace, preserving heat at 700-850 DEG C for 5-10 hours,then turning off a power supply of the heating furnace, opening a furnace door, performing air cooling on the ingot inside the furnace to room temperature, then putting the ingot into the heating furnace again, preserving heat at 300-400 DEG C for 0.5-2.0 hours, discharging from the furnace and performing air cooling to obtain a finished product. Through P-rare earth composite modification treatment, the quality of the me |
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