Zinc-nickel alloy and preparation method thereof

A nickel alloy and alloy technology, which is applied in the field of zinc-nickel alloy and its preparation, can solve the problems of wasting zinc raw materials, increasing costs, and difficulty in effectively producing alloy materials, and achieves the effects of saving costs and avoiding volatilization and oxidation

Active Publication Date: 2014-08-13
YANCHENG XINYANG ELECTROTHERMAL MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen from the above method that when the zinc-nickel alloy is prepared by adding and heating and melting the metal blocks constituting the target alloy in a certain order, the melting point of nickel is very high, about 1455°C, and the boiling point of zinc is also high. It is only 907°C, which makes nickel volatilized or violently oxidized when nickel is in a molten state, which makes it difficult to effectively produce the required alloy material, and wastes a large amount of zinc raw materials, which increases the cost unnecessarily
Although in the method mentioned above, the volatilization or oxidation of zinc is reduced by adding small pieces of metal zinc or small pieces of metal nickel into another melt, but this is only to a certain extent. The problem was solved, but the problem was not solved, and the repeated addition prolongs the entire preparation process, and it is easy to cause the volatilized zinc to cool and deposit on the side wall of the furnace, which will affect the service life of the equipment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Ingredients: Take the following raw materials according to the proportioning ratio of the alloy target composition. In terms of weight percentage, the content of Ni is 30wt%, and the balance is Zn and unavoidable impurities; wherein the raw materials of Ni and Zn are pure More than 99.99% pure metal powder, the particle size of Ni powder is 20μm, and the particle size of Zn powder is 30μm.

[0018] 2. Mixing: Put the prepared raw materials into the vacuum ball mill equipment for ball milling, the ball milling time is 20h, and dry under vacuum conditions after ball milling;

[0019] 3. Hot pressing: Fill the mixed powder into the piston reaction vessel, and place the piston reaction vessel in the hot pressing equipment protected by argon gas. The gap between the reaction vessel and the hot pressing equipment is filled with powder to conduct heat and pressure, the hot pressing conditions are: temperature 650°C, pressure 10MPa, hot pressing time 3h.

[0020] After the ...

Embodiment 2

[0022] 1. Ingredients: The following raw materials are weighed according to the target composition ratio of the alloy. In terms of weight percentage, the content of Ni is 35wt%, and the balance is Zn and unavoidable impurities; wherein the raw materials of Ni and Zn are pure More than 99.99% pure metal powder, the particle size of Ni powder is 20μm, and the particle size of Zn powder is 30μm.

[0023] 2. Mixing: Put the prepared raw materials into the vacuum ball mill equipment for ball milling, the ball milling time is 20h, and dry under vacuum conditions after ball milling;

[0024] 3. Hot pressing: Fill the mixed powder into the piston reaction vessel, and place the piston reaction vessel in the hot pressing equipment protected by argon gas. The gap between the reaction vessel and the hot pressing equipment is filled with powder to conduct heat and pressure, the hot pressing conditions are: temperature 750°C, pressure 15MPa, hot pressing time 4h.

[0025] After the prepara...

Embodiment 3

[0027] One, batching: take by weighing the following raw material composition according to alloy target composition content ratio, by weight percentage, the content of Ni is 40wt%, and the balance is Zn and unavoidable impurity; Wherein the raw material of Ni and Zn is purity More than 99.99% pure metal powder, the particle size of Ni powder is 20μm, and the particle size of Zn powder is 30μm.

[0028] 2. Mixing: put the prepared raw materials into a vacuum ball mill for ball milling, the milling time is 50 hours, and dry under vacuum conditions after ball milling;

[0029] 3. Hot pressing: Fill the mixed powder into the piston reaction vessel, and place the piston reaction vessel in the hot pressing equipment protected by argon gas. The gap between the reaction vessel and the hot pressing equipment is filled with powder to conduct heat and pressure, the hot pressing conditions are: temperature 800°C, pressure 20MPa, hot pressing time 5h.

[0030] After the preparation is com...

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Abstract

The invention provides a preparation method of a zinc-nickel alloy. The preparation reactions are carried out at a lower temperature so as to effectively diffuse and alloy zinc powder and nickel powder to form an intermediate phase, thus the volatilization and oxidation of zinc during the zinc-nickel alloy preparation process are avoided, so the cost is saved, and the target product namely zinc-nickel alloy is obtained at the same time.

Description

technical field [0001] The invention relates to the technical field of nonferrous metallurgy, in particular to a zinc-nickel alloy and a preparation method thereof. Background technique [0002] As a common alloy system, zinc-nickel alloy has a wide range of uses, and is mainly used as a master alloy liquid used in the hot-dip galvanizing process of steel to achieve galvanizing of steel to improve the surface corrosion resistance and corrosion resistance of steel. Aesthetics, of course zinc-nickel alloys are often required as master alloys for other metallurgical processes. [0003] The traditional preparation method of zinc-nickel alloy, for example, mentioned in the patent No. CN01106889.2, is to melt the zinc block in the induction melting furnace, and adjust the furnace temperature to be higher than the melting point of the alloy, and then add sponge nickel to make it as fast as possible. Melting, and then raising the temperature of the melt again to the melting point o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/00C22C1/04
Inventor 郭健郭小芳郭乃林
Owner YANCHENG XINYANG ELECTROTHERMAL MATERIAL CO LTD
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