Aluminum-zinc alloy ingot casting and production process thereof

Abstract

The invention discloses an aluminum-zinc alloy ingot casting which comprises the following raw materials including, by weight, 30-50 parts of aluminum, 30-50 parts of zinc, 15-25 parts of magnesium, 10-20 parts of copper, 5-15 parts of chromium, 10-15 parts of manganese, 8-12 parts of titanium, 2-6 parts of iron and 6-10 parts of tin. The invention further discloses a production process of the aluminum-zinc alloy ingot casting. The production process of the aluminum-zinc alloy ingot casting comprises the specific steps of S1, putting a proper amount of zinc into a crucible, heating to 450-460DEG C, conducting vacuumizing, heating to 830-850 DEG C, adding a proper amount of aluminum and copper, adding a proper amount of magnesium, filling inert gas, uniformly mixing, adding a refining agent into crucible alloy liquid, refining, adding a proper amount of chromium, manganese and iron, continuously stirring, adding the rest of titanium and tin, and continuously stirring to obtain a mixedsolution; and so on. The invention relates to the technical field of casting production. According to the aluminum-zinc alloy ingot casting and the production process thereof, through reasonable configuration of the component content of an aluminum-zinc alloy, the hardness of the aluminum-zinc alloy is improved, it is guaranteed that the aluminum-zinc alloy has excellent overall mechanical properties, alloy raw materials are added multiple times, the condition that large-amplitude temperature changes is generated when zinc ingots are directly added for melting, and consequently the alloy materials generate bubbles and are not stable in component are avoided to a certain extent, the die-casting technological parameters are optimized, and the performance of the aluminum-zinc alloy is improved to the maximum extent, and the advantages of high hardness, high strength and the like are achieved.

Description

technical field [0001] The invention relates to the technical field of casting production, in particular to an aluminum-zinc alloy ingot casting and a production process thereof. Background technique [0002] Zinc alloy is an alloy composed of zinc and other elements. Common alloying elements include aluminum, copper, magnesium, cadmium, lead, titanium and other low-temperature zinc alloys. Zinc alloys have low melting points, good fluidity, and are easy to weld and braze. And plastic processing, corrosion resistance in the atmosphere, the residual waste is easy to recycle and remelt; but the creep strength is low, easy to cause dimensional changes caused by natural aging, prepared by melting method, die-casting or pressure processing into materials, can be divided into cast zinc according to the manufacturing process Alloys and deformed zinc alloys. The main additive elements of zinc alloys are aluminum, copper and magnesium. Zinc alloys can be divided into deformation and ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an aluminum-zinc alloy ingot casting and its production process, which solves the problems of pores, air bubbles, shrinkage porosity and cracks that occur when casting traditional aluminum-zinc alloy castings, resulting in rough surfaces , loose casting structure, etc., which affect the performance and service life of castings. There are problems such as low hardness, air bubbles and unstable shapes often appear in the die-casting process, which makes the pass rate of zinc alloy castings low and difficult to meet industrial needs.

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