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Zinc-copper-titanium intermediate alloy smelting method capable of reducing burning loss of titanium element

A master alloy, zinc-copper-titanium technology, applied in the field of non-ferrous alloy preparation, zinc-copper-titanium master alloy smelting, can solve the problems of increased burning loss rate of alloy elements, large burning loss of titanium elements, etc.

Active Publication Date: 2016-05-04
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When smelting zinc-copper-titanium alloys, if copper and titanium sponge with high melting points are added to the zinc liquid, the melting temperature of the zinc alloy must be increased due to the high melting points of copper and titanium, which will increase the burning loss rate of alloying elements. ; In industrial production, copper and titanium elements are usually added in the form of zinc-copper-titanium master alloys to reduce the melting temperature of the alloy and reduce the burning rate of titanium elements. However, in the preparation process of zinc-copper-titanium master alloys There is also the problem of excessive burning loss of titanium element, and it is necessary to find an effective way to reduce its burning loss

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for smelting zinc-copper-titanium master alloys that reduces the burning loss of titanium elements. A 100# large graphite crucible is used to hold zinc ingots and placed in a coke furnace for heating to melt the zinc ingots; a 25# small graphite crucible is used to hold small copper blocks and Sponge titanium mixture, seal the mouth of the crucible with a zinc plate; put the sealed small graphite crucible containing the mixture upside down on the large graphite crucible, and submerge the small crucible in the zinc liquid, and melt the intermediate alloy at a temperature of 800°C, and the melting is completed After pouring into the metal mold to obtain the required Zn-15Cu-3-Ti master alloy, the yield of titanium is 97.5%, and the yield is the actual measured titanium content in the master alloy and the titanium content in the ratio compared to get.

Embodiment 2

[0018] A zinc-copper-titanium master alloy smelting method that reduces titanium element burning loss. A 100# large graphite crucible is used to hold zinc ingots and placed in a coke furnace for heating to melt the zinc ingots; a 30# small graphite crucible is used to hold small copper blocks and Sponge titanium mixture, seal the mouth of the crucible with a zinc plate; put the sealed small graphite crucible containing the mixture upside down on the large graphite crucible, and submerge the small crucible into the zinc liquid, melt the intermediate alloy at a temperature of 800°C, and the melting is completed After pouring into the metal mold to obtain the required Zn-15Cu-3-Ti master alloy, the yield of titanium is 96.2%.

Embodiment 3

[0020] A zinc-copper-titanium master alloy smelting method that reduces titanium element burning loss. A 100# large graphite crucible is used to hold zinc ingots and placed in a coke furnace for heating to melt the zinc ingots; a 40# small graphite crucible is used to hold small copper blocks and Sponge titanium mixture, seal the mouth of the crucible with a zinc plate; put the sealed small graphite crucible containing the mixture upside down on the large graphite crucible, and submerge the small crucible in the zinc liquid, and melt the intermediate alloy at a temperature of 800°C, and the melting is completed After pouring into the metal mold to obtain the required Zn-15Cu-3-Ti master alloy, the yield of titanium is 95.0%.

[0021] A brief description of the preparation method of the present invention is:

[0022] 1. First put the zinc ingot to be smelted into a large graphite crucible with a model number of 100#, and a small graphite crucible with a model number of 25#~40#....

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PUM

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Abstract

The invention relates to deformation zinc alloy, in particular to a zinc-copper-titanium intermediate alloy smelting method capable of reducing burning loss of the titanium element. A large graphite crucible and a small graphite crucible are adopted; the large graphite crucible is placed in a coke stove, a zinc ingot is contained in the large graphite crucible which is heated to melt the zinc ingot, and the temperature of liquid zinc is controlled to be 500 DEG C or lower so as to reduce oxidation of zinc; a mixture of a small copper block and sponge titanium is contained in the small graphite crucible, and a crucible opening of the small graphite crucible is sealed by a zinc plate; the sealed small graphite crucible containing the mixture of the small copper block and the sponge titanium is upturned on the large graphite crucible and is immersed in the liquid zinc, after the zinc plate sealing the opening of the small graphite crucible is molten, the small copper block and the sponge titanium in the small graphite crucible are slowly molten into the liquid zinc of the large graphite crucible, and in order to enable the titanium and the copper both high in melting point to be completely molten in the liquid zinc, the temperature of zinc alloy liquid is increased to 750-850 DEG C; and after intermediate alloy is completely smelted, the smelted intermediate alloy is poured into a metal mold so as to obtain needed zinc-copper-titanium intermediate alloy.

Description

technical field [0001] The invention relates to a deformed zinc alloy, in particular to a zinc-copper-titanium intermediate alloy smelting method for reducing the burning loss of titanium elements, and belongs to the preparation technology of non-ferrous alloys (C22C alloys). Background technique [0002] Deformation zinc alloy (deformation zinc alloy) is used to produce zinc alloys of various shapes of zinc materials. Cadmium, lead, iron, titanium, copper and other elements are often added, and the content of alloy elements is very small. In recent years, zinc alloys containing 1% copper and 0.1% titanium and zinc alloys containing 22% aluminum have appeared. The former has a higher Creep strength and low temperature plasticity, the latter being superplastic 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 hardn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/02C22C1/02
CPCC22C1/02C22C18/02
Inventor 王建华朱家庆吉宏祥苏旭平吴长军
Owner CHANGZHOU UNIV