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A method for smelting zinc-copper-titanium master alloy using self-dissolving copper bell jar

An intermediate alloy, zinc-copper-titanium technology, which is applied in the field of smelting zinc-copper-titanium intermediate alloys using self-dissolving copper bell jars, can solve the problems of oxidation, burning loss, and insufficient depth of titanium and copper elements, so as to reduce burning loss and lighten the The effect of stirring degree and specific gravity

Active Publication Date: 2018-08-14
KUNMING METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When smelting Zn-15Cu-3Ti master alloy, due to the high melting temperature, if the smelting process is improper (such as poor liquid surface coverage, insufficient depth of copper and / or titanium entering the zinc liquid, violent melt stirring, etc.) , will inevitably lead to greater oxidation and burning of titanium and copper elements

Method used

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  • A method for smelting zinc-copper-titanium master alloy using self-dissolving copper bell jar
  • A method for smelting zinc-copper-titanium master alloy using self-dissolving copper bell jar

Examples

Experimental program
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Effect test

Embodiment 1

[0020] (1) First place the 20# graphite crucible in the coke furnace, then put 32.8 kg of zinc ingot into the crucible and heat to 480°C for melting to obtain zinc liquid;

[0021] (2) 1.2 kilograms of titanium sponge is placed on the surface of the molten zinc obtained in step (1), and the titanium sponge is all pressed into the molten zinc by using an internal diameter of 41 millimeters and a self-dissolving red copper bell jar with a thickness of 25 millimeters. It is half of the depth of the bell jar entering the zinc solution;

[0022] (3) The zinc liquid of step (2) is heated up to 720 DEG C, and at the same time when the temperature is raised, the bell jar is constantly swimming back and forth at the corresponding depth in the zinc liquid, so that the sponge titanium and red copper are slowly dissolved into the zinc liquid at the same time, After the dissolution is sufficient, the resulting alloy liquid is poured into 40 kg of zinc-copper-titanium master alloy ingot.

...

Embodiment 2

[0033] (1) First place the 20# graphite crucible in the coke furnace, then put 28.7 kg of zinc ingot into the crucible and heat to 480°C for melting to obtain zinc liquid;

[0034] (2) 1.05 kilograms of titanium sponge is placed on the surface of the molten zinc obtained in step (1), and the titanium sponge is all pressed into the molten zinc by using an internal diameter of 37 millimeters and a self-dissolving red copper bell jar with a thickness of 25 millimeters. It is half of the depth of the bell jar entering the zinc solution;

[0035] (3) The zinc liquid of step (2) is heated up to 720 DEG C, and at the same time when the temperature is raised, the bell jar is constantly swimming back and forth at the corresponding depth in the zinc liquid, so that the sponge titanium and red copper are slowly dissolved into the zinc liquid at the same time, After the dissolution is sufficient, the resulting alloy solution is poured into a 35 kg zinc-copper-titanium master alloy ingot. ...

Embodiment 3

[0044] (1) First place the 16# graphite crucible in the coke furnace, then put 24.6 kg of zinc ingot into the crucible and heat it to 480°C for melting to obtain zinc liquid;

[0045](2) 0.9 kg of titanium sponge is placed on the surface of the molten zinc obtained in step (1), and the titanium sponge is all pressed into the molten zinc by using an internal diameter of 32 millimeters and a self-dissolving red copper bell jar with a thickness of 25 millimeters. It is half of the depth of the bell jar entering the zinc solution;

[0046] (3) The zinc liquid of step (2) is heated up to 720 DEG C, and at the same time when the temperature is raised, the bell jar is constantly swimming back and forth at the corresponding depth in the zinc liquid, so that the sponge titanium and red copper are slowly dissolved into the zinc liquid at the same time, After the dissolution is sufficient, the resulting alloy solution is poured into 30 kg of zinc-copper-titanium master alloy ingot.

[0...

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Abstract

The invention belongs to the field of intermediate alloy and wrought zinc alloy, and specifically relates to a method for smelting zinc-copper-titanium intermediate alloy using a self-dissolving copper bell jar. The method comprises the steps of putting sponge titanium on the surface of liquid zinc in the centralized form, pressing the sponge titanium into the liquid zinc depending on the dead weight of the self-melt copper bell jar which sinks into the liquid zinc simultaneously; and increasing the zinc alloy temperature to 720 DEG C so that the bell jar swings continuously in the liquid zinc alloy, and the sponge titanium and copper are dissolved in the liquid zinc simultaneously. With the method provided by the invention, the labor intensity of workers can be reduced, and the coverage effect of melt on the sponge titanium is improved; and the production efficiency of the zinc-copper-titanium intermediate alloy is improved while reducing copper and titanium melting loss.

Description

technical field [0001] The invention belongs to the field of master alloys and deformed zinc alloys, and in particular relates to a method for melting a zinc-copper-titanium master alloy by using a self-dissolving red copper bell jar. Background technique [0002] Deformation zinc alloy (deformation zinc alloy) is used to produce zinc alloys of various shapes of zinc materials. There are currently two wrought zinc alloys: one is wrought zinc alloy containing 1wt.% copper and 0.1wt.% titanium, the other is wrought zinc alloy containing 22wt.% aluminum, the former has higher creep strength and Low temperature plasticity, while the latter has superplasticity under certain conditions. [0003] Copper and zinc in zinc-copper-titanium deformed zinc alloy form CuZn 4 compounds, while trace amounts of titanium and zinc form TiZn 15 Compounds can improve the strength and hardness of the alloy; in addition, titanium can also refine the grain structure of the alloy and improve the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C18/02C22C1/02
CPCC22C1/02C22C18/02
Inventor 王建华朱家庆吉宏祥邵伯金苏旭平
Owner KUNMING METALLURGY INST
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