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Process method capable of improving comprehensive mechanical property of multielement zinc-aluminum alloy

A zinc-aluminum alloy and comprehensive mechanics technology is applied in the field of improving the comprehensive mechanical properties of multi-component zinc-aluminum alloys, and can solve problems such as poor plastic toughness, poor creep resistance, and poor corrosion resistance.

Inactive Publication Date: 2013-09-25
ZHENJIANG YINUOWEI SHAPE MEMORY ALLOYS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, aluminum-zinc alloys also have disadvantages such as poor plasticity and toughness, low dimensional stability, low working temperature, poor creep resistance, and poor corrosion resistance.

Method used

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  • Process method capable of improving comprehensive mechanical property of multielement zinc-aluminum alloy

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Industrial aluminum ingot No. A00, zinc ingot No. 0, electrolytic copper, composite modifier (including Ni20-30%, Ti15-25%, Mn5-15%, Cr5-15%, Si5-10%, Ce5-10%, La5-10%, Y1-6%, Nb1-6%, V1-6%, the rest is aluminum), pure magnesium as raw materials. The composition is calculated by weight percentage, after weighing according to the ratio of Al28%, Cu2.3% (added in the form of aluminum-copper master alloy containing 50% copper), composite modifier 0.6%, Mg0.015%, and the balance is Zn. Melting in medium frequency induction melting furnace. The smelting process is as follows: first add aluminum ingots, zinc ingots, aluminum-copper intermediate alloys, and composite modifiers. After the materials are completely melted, heat them up to 600-650°C and keep them warm for 6min-8min to homogenize each element, in order to reduce the burning loss of magnesium. Use a bell jar to press magnesium into molten metal, and use 0.2% dehydrated ZnCl containing molten metal 2 For refining, ...

Embodiment 2

[0012] Industrial aluminum ingot No. A00, zinc ingot No. 0, electrolytic copper, composite modifier (including Ni20-30%, Ti15-25%, Mn5-15%, Cr5-15%, Si5-10%, Ce5-10%, La5-10%, Y1-6%, Nb1-6%, V1-6%, the rest is aluminum), pure magnesium as raw materials. The composition is calculated by weight percentage, after weighing according to the ratio of Al28%, Cu2.3% (added in the form of aluminum-copper master alloy containing 50% copper), composite modifier 0.6%, Mg0.015%, and the balance is Zn. Melting in medium frequency induction melting furnace. The smelting process is as follows: first add aluminum ingots, zinc ingots, aluminum-copper intermediate alloys, and composite modifiers. After the materials are completely melted, heat them up to 600-650°C and keep them warm for 6min-8min to homogenize each element, in order to reduce the burning loss of magnesium. Use a bell jar to press magnesium into molten metal, and use 0.2% dehydrated ZnCl containing molten metal 2 For refining, ...

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Abstract

The invention relates to a multielement zinc-aluminum alloy capable of improving comprehensive mechanical property, belonging to the technical field of zinc-aluminum alloy preparation. The multielement zinc-aluminum alloy is characterized in that the multielement zinc-aluminum alloy is prepared from the following raw materials: industrial aluminum ingot NO.A00, zinc ingot NO.0, electrolytic copper, composite modifier and pure magnesium, wherein the composite modifier contains 20-30% of Ni, 15-25% of Ti, 5-15% of Mn, 5-15% of Cr, 5-10% of Si, 5-10% of Ce, 5-10% of La, 1-6% of Y, 1-6% of Nb, 1-6% of V and the balance of aluminum; the multielement zinc-aluminum alloy is smelted in a medium-frequency induction melting furnace after weighing 27-29% of Al, 2-2.5% of Cu (added in the form of aluminum-copper intermediamidstfrequencye alloy containing 50% of copper ), 0-1.2% of composite modifier, 0.01-0.02% of Mg and the balance of Zn based on percentage by weight. A round-rod-shaped blank is casted by a common metal type and metal type vibrational casting method, and then processed to a national standard test rod to be subjected to mechanical property testing.

Description

technical field [0001] The invention belongs to the technical field of zinc-aluminum alloy preparation, in particular to a process method capable of improving the comprehensive mechanical properties of multi-element zinc-aluminum alloy. Background technique [0002] The application and development of aluminum-zinc alloy was one of the hot spots in the field of metal material research in the 1980s and 1990s. This is because as a substitute material for copper, tin and their alloys, aluminum-zinc alloys have the advantages of high tensile strength and hardness, good damping, good wear resistance, small friction coefficient, low friction temperature rise, and low material and manufacturing costs. . However, aluminum-zinc alloys also have disadvantages such as poor plasticity and toughness, low dimensional stability, low working temperature, poor creep resistance, and poor corrosion resistance. Over the years, people have made unremitting efforts to overcome these shortcomings...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C18/04C22C21/10C22C1/03C22C1/06C22C30/06B22D1/00
Inventor 李晓薇杨嵩司松海刘光磊陆松华
Owner ZHENJIANG YINUOWEI SHAPE MEMORY ALLOYS
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