High-calcium non-silicon aluminium calcium magnesium ferrous alloy for steel-smelting deoxidization and method for preparing the same
A ferroalloy, silicon-aluminum technology, applied in the field of high-calcium silicon-free aluminum-calcium-magnesium-iron alloy and its preparation, can solve the problems that it is difficult to control the alloy without silicon impurities, oxidation loss, floating volatilization and the like
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[0023] Example 1
[0024] The high-calcium silicon-free aluminum-calcium-magnesium-iron alloy of the present invention is prepared according to the following steps:
[0025] (1) According to the weight ratio of Al40%, Ca60% and Al60%, Mg40% ingredients, and use low-frequency induction furnace to smelt into aluminum-calcium master alloy and aluminum-magnesium master alloy for use;
[0026] (2) Calculate the amount of raw material aluminum, aluminum-calcium master alloy, aluminum-magnesium master alloy and low carbon (C<0.05%) scrap steel used in smelting a furnace according to the alloy composition content of Ca15%, Al15%, Mg2%, Fe68%, and Weigh separately, and put the weighed aluminum-calcium master alloy and aluminum-magnesium master alloy into a high-temperature resistant container with mesh (the container can be made of a steel cylinder with graphite on the surface, and a mesh is provided on the peripheral wall. With handle,), spare;
[0027] (3) Use a power frequency induction ...
Example Embodiment
[0032] Example 2
[0033] The preparation method is the same as in Example 1, except that the weight ratio of Ca 15%, Al 30% (Al:Ca=2:1), Mg3%, Fe52% is calculated in step (2) and the raw materials are weighed. Finally, a high-calcium silicon-free aluminum-calcium-magnesium-iron alloy containing Ca15%, Al30%, Mg3%, and Fe52% is prepared. The number is 2# alloy.
Example Embodiment
[0034] Example 3
[0035] The preparation method is the same as in Example 1, except that the weight ratio of Ca28%, Al28% (Al:Ca=1:1), Mg2%, Fe42% is calculated and the raw materials are weighed in step (2). Finally, a high-calcium silicon-free aluminum-calcium-magnesium-iron alloy with composition content of Ca28%, Al28%, Mg2%, and Fe42% is prepared. The number is 3# alloy.
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