Zinc-aluminum-neodymium alloy and fused salt electrolysis preparation method thereof

Abstract

The invention provides a zinc-aluminum-neodymium alloy and a fused salt electrolysis preparation method thereof. The fused salt electrolysis preparation method comprises the following steps of: heating a fused salt system comprising 45% of LiCl, 45% of KCl and 10% of AlF3 in mass percent to 450 DEG C for fusion, and then adding the mixture of Nd2O3 and ZnCl2 in mass ratio of 1 to 5, wherein metal molybdenum is used as a cathode, graphite is used as an anode, a cathode sinking method is adopted, the polar distance is 5 cm, the electrolytic temperature is 450-480 DEG C, the current density of the cathode is 6.4-12.7 A / cm<2>, the current density of the anode is 0.5 A / cm<2>, and the bath voltage is 6.4-10.2 V; after carrying out electrolytic deposition for 120 minutes, keeping the temperature at 800 DEG C for 2h to obtain a liquid Zn-Al-Nd alloy nearby the cathode in a fused slat-electrolysis bath; and then solidifying the liquid Zn-Al-Nd alloy to obtain a solid alloy. The preparation method greatly shortens the production process and has simple process. Because the method of low-temperature electrolysis and high-temperature heat preservation is adopted, the better liquid alloying is achieved, and the energy consumption and the production cost are reduced.

Description

technical field [0001] The present invention relates to an alloy. The invention also relates to a method for preparing the alloy. Specifically, it is a zinc-aluminum-neodymium alloy and a preparation method thereof. Background technique [0002] Zinc-aluminum alloy has the advantages of high strength and hardness, good wear resistance and anti-friction performance, low raw material and manufacturing costs, and other unique properties (such as no sparks during collision, non-magnetic, etc.), and it can be used to replace aluminum alloys or even Copper alloy has obvious economy, meanwhile, the alloy has low melting point, less energy consumption, low cost, convenient molding, and is suitable for various casting methods, so it has strong market competitiveness. However, zinc-aluminum alloys also have disadvantages such as poor ductility, low dimensional stability, low operating temperature, poor creep resistance, and poor corrosion resistance. Generally, the performance of z...

AI Technical Summary

Problems solved by technology

Due to the low melting point, high vapor pressure, volatile and burning loss of zinc, neither the reduction method nor the mixed melting method can solve this problem well.

The traditional zinc-aluminum alloy manufacturing method has a pairing method, such as "a zinc-aluminum alloy preparation process" recorded in the patent document of the publication number CN98124025.9. The technical solution is characterized in that the molten aluminum is first poured into the molten In the molten zinc state, or in the molten state, add block aluminum, heat up to melt and stir fully to obtain zinc-aluminum alloy; the equipment for the mixing method is relatively simple, but there are long processes, high energy consumption, and large metal loss , serious environmental pollution and other issues

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