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Zinc-aluminum alloy round ingot, preparation method and application thereof and zinc-aluminum alloy material

A zinc-aluminum alloy and zinc-aluminum alloy wire technology, applied in the field of alloys, can solve problems affecting production efficiency, composition segregation defects, composition inconsistencies, etc., and achieve the effects of preventing the formation of coarse grains, avoiding gravity segregation, and reducing pores

Inactive Publication Date: 2020-08-25
GUANGDONG INST OF MATERIALS & PROCESSING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of this production method is that due to the influence of gravity, elements such as aluminum and copper in the melt will segregate due to gravity inconsistency with zinc density, resulting in inconsistency in the composition of the upper and lower parts of the billet, and serious defects in composition segregation, especially in the production of large-scale round ingots. The performance is particularly obvious
Due to the above-mentioned casting defects of round ingots, the rate of wire breakage in the subsequent deformation process is very high, which seriously affects production efficiency

Method used

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  • Zinc-aluminum alloy round ingot, preparation method and application thereof and zinc-aluminum alloy material
  • Zinc-aluminum alloy round ingot, preparation method and application thereof and zinc-aluminum alloy material
  • Zinc-aluminum alloy round ingot, preparation method and application thereof and zinc-aluminum alloy material

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preparation example Construction

[0053] In addition, the present application also provides a method for preparing the above-mentioned zinc-aluminum alloy round ingot, for example, may include the following steps: performing vertical semi-continuous casting on the melt having the above-mentioned chemical composition.

[0054] In an optional embodiment, the conditions of vertical semi-continuous casting mainly include: the casting speed is 80-200mm / min, the temperature of the melt during casting is 480-550°C, and the cooling water flow rate of each ingot is 1.5- 4.5m 3 / h, the cooling water temperature is 10-35°C.

[0055] Wherein, the casting speed can be 80mm / min, 100mm / min, 120mm / min, 150mm / min, 180mm / min or 200mm / min, etc. The casting speed mainly affects the microstructure and surface quality of zinc-aluminum alloy. In this application, the casting speed is controlled at 80-200mm / min. If the casting speed is lower than 80mm / min, it will easily lead to surface roughness, segregation and other defects. If i...

Embodiment 1

[0074] This embodiment provides a large-scale zinc-aluminum alloy round ingot, whose chemical composition is composed of Zn, Al, Mg, Cu, Fe, and Ti. The mass percentage of Al in the large-scale zinc-aluminum alloy round ingot is 11.5%, the mass percentage of Mg is 0.35%, the mass percentage of Cu is 0.8%, the mass percentage of Fe is less than 0.085%, and the mass percentage of Ti is 0.05%. The amount is Zn.

[0075] Its preparation process includes:

[0076] (1) Melting

[0077] According to the proportion of ingredients, the raw materials are pure zinc ingots, pure aluminum ingots, pure magnesium ingots, aluminum-copper master alloys and aluminum-titanium master alloys, and iron is an impurity element.

[0078] Put the prepared pure zinc ingots, pure aluminum ingots, and aluminum-copper intermediate alloys into a resistance furnace to melt them. When the temperature reaches 550°C, add pure magnesium ingots and aluminum-titanium intermediate alloys, and stir for 10 minutes ...

Embodiment 2

[0085]This embodiment provides a large-scale zinc-aluminum alloy round ingot, whose chemical composition is composed of Zn, Al, Mg, Cu, Fe, Ti and B. The mass percentage of Al in this large-scale zinc-aluminum alloy round ingot is 28.5%, the mass percentage of Mg is 0.02%, the mass percentage of Cu is 3.5%, the mass percentage of Fe is less than 0.1%, and the mass percentage of Ti is 0.05%, B The mass percentage of is 0.05%, and the balance is Zn.

[0086] Its preparation process includes:

[0087] (1) Melting

[0088] According to the proportion of ingredients, the raw materials are pure zinc ingots, pure aluminum ingots, pure magnesium ingots, aluminum-copper master alloys and aluminum-titanium-boron master alloys, and iron is an impurity element.

[0089] Add the prepared pure zinc ingots, pure aluminum ingots, and aluminum-copper intermediate alloys into the resistance furnace for melting. When the temperature reaches 580°C, add pure magnesium ingots and aluminum-titaniu...

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Abstract

The invention discloses a zinc-aluminum alloy round ingot, a preparation method and application thereof and a zinc-aluminum alloy material, and belongs to the technical field of alloys. The round ingot comprises the following chemical components of, in percentage by mass, less than 0.05 % and more than 0 of Ti, less than 0.05 % and more than 0 of at least one of B, 3.5 %-28.5 % of Al, 0.01 %-0.5 %of Mg, 0.5 %-3.5 % of Cu, less than 0.1 % of Fe and the balance Zn. According to the round ingot, by means of the Ti and / or B with the above content, the solidification structure of the round ingot can be effectively refined, the generation of thick and large grains is reduced, and air holes are reduced; vertical semi-continuous casting is adopted so that the uniformity of the structure of the round ingot can be effectively guaranteed, the gravity segregation of alloy elements in the radial direction of the round ingot is avoided, the generation of the thick and large grains is prevented, andthe defects of air holes, slag inclusion and the like in a casting blank are reduced; and the zinc-aluminum alloy round ingot can be used for preparing the zinc-aluminum alloy material so that the material can have good mechanical property and corrosion resistance.

Description

technical field [0001] The invention relates to the field of alloy technology, in particular to a zinc-aluminum alloy round ingot, a preparation method and application thereof, and a zinc-aluminum alloy material. Background technique [0002] Zinc-aluminum alloy has good mechanical properties and corrosion resistance, as well as low melting point and good fluidity. It is often processed into wire, wire or rod, and is widely used in the field of anti-corrosion. It is used to treat steel plates or surface anti-corrosion treatment The products are thermal sprayed. At the same time, because zinc-aluminum has the characteristics of good wear resistance, low friction coefficient and strong affinity to oil, it can replace copper alloy to make wear-resistant materials. [0003] The main production method of zinc-aluminum alloy wire, wire and bar is to use casting round ingots to be deformed by extrusion, drawing or drawing after extrusion. At present, there are mainly two producti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/04B22D7/00C22C1/03B22D43/00
CPCB22D7/005B22D43/004C22C1/03C22C18/04
Inventor 李新涛刘明阳周楠
Owner GUANGDONG INST OF MATERIALS & PROCESSING