Wear-resistant zinc alloy material and preparation method thereof

Abstract

The invention relates to a wear-resistant zinc alloy material which contains the following chemical components in percentage by mass: 12.6-13.8% of aluminum, 3.6-3.8% of magnesium, 2.1-2.3% of silicon, 4.2-4.4% of nickel, 0.2-0.4% of cerium, 0.15-0.25% of Y, 2.0-2.3% of Mo, 0.02-0.04% of Ga, 0.12-0.18% of In and the balance of zinc. The crystal structure of the alloy is denatured, so that the alloy coating can not easily shed, the friction factor is lowered, and the wear resistance is enhanced. By adding the magnesium, aluminum, nickel, Mo and other elements, the strength of the zinc alloy is increased, and the wear resistance is enhanced. The alloy has favorable processability, and can be processed into bearing bushes, shaft sleeves, worm gears, sliders, screw nuts and other series antiwear products. When the refining agent is used for casting production, the porosity in the casting is lowered by 1-2 degrees, the oxide inclusion content is lowered by 2 levels or so, and the yield is obviously enhanced.

Description

technical field [0001] The invention relates to the manufacturing field of metal alloy materials, in particular to a wear-resistant zinc alloy material and a preparation method thereof. Background technique [0002] Zinc alloy has excellent performance and good casting performance. It can die-cast precision parts with complex shapes and thin walls, and the surface of the castings is smooth; surface treatment: electroplating, spraying, painting, polishing, grinding, etc.; melting and die-casting does not absorb iron, It does not corrode and does not stick to molds; it has many advantages such as good mechanical properties at room temperature and wear resistance. Currently, alloys used in series of anti-friction products such as bearing bushes, bushings, worm gears, skateboards, and silk nut require high resistance However, in actual production, the problem of shelling of the zinc alloy coating often occurs, and the wear resistance is not good enough, and the parts are damaged...

AI Technical Summary

Problems solved by technology

[0002] Zinc alloy has excellent performance and good casting performance. It can die-cast precision parts with complex shapes and thin walls, and the surface of the casting is smooth; it can be used for surface treatment: electroplating, spraying, painting, polishing, grinding, etc.; it does not absorb iron during melting and die-casting, It does not corrode the pressing type and does not stick to the mold; it has many advantages such as good mechanical properties at room temperature and wear resistance. At present, the alloys used in series of anti-friction products such as bearing bushes, bushings, worm gears, skateboards, and nuts need higher resistance. Abrasiveness, but in actual production, the problem of shelling of the zinc alloy coating often occurs, and the wear resistance is not good enough, and the parts are damaged quickly