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Multielement zinc-aluminum alloy capable of improving frictional wear performance

A zinc-aluminum alloy, friction and wear technology, applied in the field of zinc-aluminum alloy preparation

Inactive Publication Date: 2012-10-10
ZHENJIANG YINUOWEI SHAPE MEMORY ALLOYS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But usually, the elongation of sand casting zinc alloy can only reach 3.6%

Method used

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  • Multielement zinc-aluminum alloy capable of improving frictional wear performance
  • Multielement zinc-aluminum alloy capable of improving frictional wear performance
  • Multielement zinc-aluminum alloy capable of improving frictional wear performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 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 proportion of Al28%, Cu2.3% (added in the form of aluminum-copper master alloy containing 50% copper), composite modifier 0.2%, Mg0.015%, and the balance is Zn. Melted in an 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, use a bell...

Embodiment 2

[0018] 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. Melted in an 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, use a bell jar to...

Embodiment 3

[0020] 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 proportion of Al28%, Cu2.3% (added in the form of aluminum-copper master alloy containing 50% copper), composite modifier 1.2%, Mg0.015%, and the balance is Zn. Melted in an 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, use a bell...

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Abstract

A multielement zinc-aluminum alloy capable of improving frictional wear performance belongs 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 an induction melting furnace after weighing 27-29% of Al, 2-2.5% of Cu (added in the form of aluminum-copper intermediate alloy containing 50% of copper), 0-1.2% of composite modifier, 0.01-0.02% of Mg and the balance of Zn; and smelting is carried out according to the addition amount of the composite modifier to be 0-1.2%, and then seven groups of zinc-aluminum alloy blanks containing different composite modifiers are casted and subjected to mechanical property and frictional wear performance testing.

Description

technical field [0001] The invention belongs to the technical field of zinc-aluminum alloy preparation, in particular to a multi-element zinc-aluminum alloy capable of improving friction and wear performance. Background technique [0002] Cast zinc-aluminum alloys have been widely valued as energy-saving materials for replacing some copper alloys to make wear-resistant parts. In particular, the International Lead-Zinc Organization has formulated corresponding standards through the long-term use of zinc-aluminum alloys. Zinc-aluminum alloy is a cheap, energy-saving and high-quality new material that has been widely used at home and abroad for more than ten years. It has high hardness and strength, good damping performance, good wear resistance, small friction coefficient, and low friction temperature rise. and low manufacturing cost. At the same time, it also has good process performance, not only can be used for die-casting, but also suitable for sand mold, metal mold, grap...

Claims

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Application Information

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IPC IPC(8): C22C18/04C22C21/10C22C1/03C22C1/06C22C30/06B22D1/00
Inventor 李晓薇王怀庆齐克尧司松海刘光磊
Owner ZHENJIANG YINUOWEI SHAPE MEMORY ALLOYS
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