Production method of zinc-antimony alloy

Abstract

The invention provides a production method of zinc-antimony alloy. The production method of zinc-antimony alloy comprises the following steps: adding zinc metal into a melting pot, melting zinc by utilizing an electrical heating pot body, after zinc is molten, covering the surface of the molten zinc with charcoal powder, warming to 640-660 DEG C, adding antimony metal, and ingoting after the antimony metal is fully molten to form zinc-antimony intermediate alloy; according to volume of the melting pot, calculating amounts of the zinc metal and the zinc-antimony intermediate alloy which are needed to be added, adding the zinc metal into the melting pot, after the zinc metal is molten, warming to 510-530 DEG C, then adding the zinc-antimony intermediate alloy, and ingoting after the zinc-antimony intermediate alloy is fully molten, so as to generate the zinc-antimony alloy. The production method of the zinc-antimony alloy has the advantages that a secondary smelting method is adopted, the problems that smelting speed is low and oxidation is serve in a zinc-antimony alloy production process are solved, and the problem of composition segregation is also solved as the smelting speed is high when the zinc-antimony alloy product is produced, so that the production method of the zinc-antimony alloy is applicable to being applied in the field of zinc alloys.

Description

technical field

[0001] The invention relates to a metal smelting method in the field of nonferrous metal metallurgy, in particular to a production method of a zinc-antimony alloy. Background technique

[0002] Zinc is a white and slightly blue-gray metal with a hexahedral crystal form, stable at room temperature and dry air, and forms a layer of off-white dense basic zinc carbonate film on the surface in humid air to prevent the internal zinc from continuing. Oxidation and corrosion, so it is widely used in the anti-corrosion coating of steel. Hot-dip galvanizing is currently the most widely used atmospheric corrosion-resistant coating for steel. When a small amount of aluminum, antimony, lead and other elements are added to the zinc liquid, it not only changes the zinc liquid Surface tension, and beautiful spangles are formed on the surface of the coating, which is favored by users. The antimony content of the existing zinc-antimony alloys for galvanizing does not exceed ...