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Method for preparing zinc-titanium intermediate alloy

An intermediate alloy and alloy liquid technology, applied in the field of metal alloy materials, can solve the problems of long reaction time and low titanium content in zinc-titanium alloy, and achieve the effects of short production cycle, complete reaction and reduced oxidation loss

Inactive Publication Date: 2010-11-24
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems of long reaction time required for the preparation of zinc-titanium alloys and the low titanium content of the prepared zinc-titanium alloys, and provide a method for preparing zinc-titanium alloys with high titanium content in a short period of time. method

Method used

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  • Method for preparing zinc-titanium intermediate alloy
  • Method for preparing zinc-titanium intermediate alloy
  • Method for preparing zinc-titanium intermediate alloy

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Ingredients according to the following mass proportions: 94% pure zinc, 6% pure titanium; use an intermediate frequency induction furnace to melt pure zinc to about 740°C in a graphite clay crucible, then rapidly increase the power of the induction furnace, and will account for 1.5% of the total mass of raw materials The pure titanium is pressed into the pure zinc melt with a bell jar, and the heating is continued for 4 minutes. The power of the induction furnace is appropriate to rapidly raise the melt temperature to 780°C within the above time and completely melt the pure titanium into the molten zinc. Next, the remaining pure titanium is divided into two batches (2%, 2.5% respectively) and pressed into the alloy liquid with a bell jar. During the process of pressing the pure titanium and within 6 minutes after pressing, the appropriate induction furnace power is maintained to control the melt. The temperature is around 840°C. After the pure titanium is completely me...

Embodiment 2

[0025] Ingredients according to the following mass proportions: 97% pure zinc, 3% pure titanium; use an intermediate frequency induction furnace to melt pure zinc to about 730°C in a graphite clay crucible, then rapidly increase the power of the induction furnace, and will account for 1% of the total mass of raw materials The pure titanium is pressed into the pure zinc melt with a bell jar, and the heating is continued for 5 minutes. The power of the induction furnace is appropriate to rapidly raise the melt temperature to about 760°C within the above time and completely melt the pure titanium into the molten zinc. Next, the remaining pure titanium is pressed into it with a bell jar, and the appropriate induction furnace power is maintained during the process of pressing the pure titanium and within 5 minutes after the pressing, and the temperature of the melt is controlled at about 810°C. After the pure titanium is completely melted within the above heating time, stop heating...

Embodiment 3

[0028]Ingredients according to the following mass ratios: 90% pure zinc, 10% pure titanium; use an intermediate frequency induction furnace to melt pure zinc to about 740°C in a graphite clay crucible, and then rapidly increase the power of the induction furnace to account for 1% of the total mass of raw materials The pure titanium is pressed into the pure zinc melt with a bell jar, and the heating is continued for 4 minutes. The power of the induction furnace is appropriate to rapidly raise the melt temperature to about 780°C within the above time and completely melt the pure titanium into the molten zinc. Next, the remaining pure titanium is divided into three batches (2%, 3%, 4%) into the alloy liquid with a bell jar, and the appropriate induction furnace power is maintained during the process of pressing the pure titanium and within 10 minutes after the pressing. Control the melt temperature at around 850°C. After the pure titanium is completely melted within the above he...

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Abstract

The invention relates to a method for preparing a zinc-titanium intermediate alloy. The zinc-titanium intermediate alloy prepared by the method can be used for a grain structure of a refined zinc-aluminum alloy. The preparation method comprises the following steps of: melting a pure zinc ingot in a crucible by using an electric induction furnace to the temperature of between 700 and 750 DEG C; pressing pure titanium which accounts for 0.3 to 1.5 percent of the total mass of a raw material into a pure zinc melt by using a bell jar, and keeping the temperature between 720 and 800 DEG C; then pressing remaining pure titanium into molten metal at one to three times by using the bell jar, and keeping the temperature between 750 and 880 DEG C; naturally cooling to 660 to 750 DEG C; adding a deslagging agent into the molten metal; pouring alloy liquid into a casting mold; and solidifying the alloy liquid to obtain the zinc-titanium intermediate alloy. The preparation method of the invention has the advantages of capability of preparing zinc-titanium alloy with high titanium content (10 weight percent), greatly shortening time and greatly reducing the oxidation of zinc and loss caused by evaporation, no need for complex equipment, simple process, short production period and suitability for mass industrial production and application.

Description

technical field [0001] The invention belongs to the technical field of metal alloy materials, and in particular relates to a preparation method of a zinc-titanium master alloy. The zinc-titanium master alloy prepared by the method can be used to refine the grain structure of the zinc-aluminum alloy. Background technique [0002] High-aluminum zinc-aluminum alloys (hereinafter referred to as zinc-aluminum alloys) containing more than 5wt.% of aluminum have excellent mechanical and processing properties and have broad market application prospects. However, during the solidification process of zinc-aluminum alloys, well-developed primary α-Al dendrites are likely to be formed, resulting in shrinkage cavities, shrinkage porosity, and intragranular composition segregation defects, resulting in a decline in mechanical properties and potential aging risks of products. In order to overcome the above problems, it is necessary to add a grain refiner to the zinc-aluminum alloy to refin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/00C22C1/02
Inventor 王振卿左兴华
Owner UNIV OF JINAN
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