The invention discloses an
alloy element adding method for steel hot galvanizing, and relates to the technical field of metallurgical
engineering. The preparation method comprises the following steps: S1, crushing an Al material, a Ni material, a Bi material, a La material, a Ce material and a Zn material in batches, and carrying out weighing according to a weight ratio after crushing; S2,
smelting a Zn-Ni intermediate
alloy; S3,
smelting an Al-Ni intermediate
alloy; S4,
smelting a Zn-Al-
rare earth intermediate alloy; and S5, a preparing a multi-element alloy
ingot, adding the remaining Zn material
powder into an
intermediate frequency furnace, raising the temperature to 500-550 DEG C, melting the Zn material
powder into molten
zinc, adding the Zn-Ni intermediate alloy and the Al-Ni intermediate alloy into the
intermediate frequency furnace at the same time, raising the temperature to 650-750 DEG C, carrying out heat preservation for 20-30 min, and carrying out then full stirring. According to the method, the multicomponent alloy is smelted in the mode of the
metal ingot and the intermediate alloy. By making full use of the characteristic that the intermediate alloy is low in
melting point, the smelting time of the intermediate alloy is greatly shortened, oxidation burning loss of easily-oxidized elements is reduced, the
metal yield is increased, and the production efficiency is improved.