Process method capable of improving thermal fatigue property of polynary zinc-aluminum alloy

A technology of zinc-aluminum alloy and process method, which is applied in the field of improving thermal fatigue performance of multi-component zinc-aluminum alloy, and can solve problems such as low dimensional stability, low working temperature, 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

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Problems solved by technology

[0003] 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 thermal fatigue property of polynary zinc-aluminum alloy
  • Process method capable of improving thermal fatigue property of polynary zinc-aluminum alloy

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Experimental program
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Effect test

Embodiment 1

[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 0.8%, 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 the molten metal, and then use a bell jar to dehydrate ZnCl containing 0.2% of the m...

Embodiment 2

[0015] 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 0.8%, 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 the molten metal, and then use a bell jar to dehydrate ZnCl containing 0.2% of the m...

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Abstract

The invention discloses a process method capable of improving the thermal fatigue property of a polynary zinc-aluminum alloy and belongs to the technical field of zinc-aluminum alloy preparation. The process method is characterized in that industrial aluminum ingots A00, zinc ingots 0, electrolytic copper, composite modifiers (wherein 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 aluminum) and pure magnesium are used as raw materials. The method includes: proportionally weighing, by weight, 27-29% of Al, 2-2.5% of Cu, 0.2-1.2% of the composite modifiers, 0.01-0.02% of Mg and the balance Zn, melting the components in a medium-frequency induction melting furnace, pouring the melted zinc-aluminum alloy on common metal molds and vibratory metal molds, then processing the poured metal molds to test bars meeting national standards and sampling on blanks so that thermal fatigue testing specimens are processed by wire cutting.

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 thermal fatigue performance of multi-element zinc-aluminum alloy. Background technique [0002] Since the 20th century, due to the continuous improvement of zinc smelting technology, the purity of industrial zinc has been improved. At the same time, the improvement and perfection of zinc alloy production technology has significantly improved the quality of traditional zinc alloy castings and promoted the development and application of cast zinc alloys. Judging from the current situation, the application of zinc-aluminum alloys in the future will mainly focus on wear-resistant parts and wearing parts that are replaced regularly or other parts with a short service life. For some special alloys, such as non-spark, non-magnetic noise-reducing alloy application fields will also become a potential development market for zin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/03C22C1/06C22C18/04
Inventor 杨嵩董兴盛刘光磊李晓薇司松海
Owner ZHENJIANG YINUOWEI SHAPE MEMORY ALLOYS
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