Rare earth aluminum-base alloy for steelmaking deoxidization and preparation method thereof
A technology of rare earth aluminum base alloy and rare earth aluminum, which is applied in the field of rare earth aluminum base alloy for steelmaking deoxidation and its preparation, can solve the problems of adverse effects on the performance of molten steel, improve the distribution of inclusions, simplify the production process, and reduce the oxygen content. Effect
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Embodiment 1
[0028] A deoxidizer for steelmaking, the composition of which is 98% aluminum and 2% rare earth by weight.
Embodiment 2
[0030] A deoxidizer for steelmaking, the composition of which is 95% aluminum and 5% rare earth by weight.
Embodiment 3
[0032] A deoxidizer for steelmaking, the composition of which is 90% aluminum and 10% rare earth by weight.
[0033] In the preferred embodiment 1 of the present invention, the chemical composition ratio (weight %) of the prepared rare earth aluminum-based alloy for steelmaking is: 98% aluminum, 2% mixed rare earth. Its preparation steps are as follows:
[0034] 1. First, mix metal aluminum and rare earth according to the ratio of 98 to 2, and weigh 200g of mixed rare earth and 9800g of metal aluminum.
[0035] 2. Take out 4000g of the weighed aluminum metal and place it in a vacuum induction furnace, then vacuumize it to a vacuum degree of 30Pa to heat and melt the metal aluminum.
[0036] 3. Add the mixed rare earth to the molten aluminum in a vacuum environment, the temperature of the mixed rare earth is controlled at about 750°C, and the holding time is 20 minutes. Electromagnetic stirring homogenization treatment is carried out before pouring, electromagnetic stirring i...
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