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Li-Al-Sn-containing high-damping high-thermal-conductivity Zn-Li alloy

A li-al-sn, high damping technology, applied in the field of alloys, can solve the problems of limitations in the research, development and application of zinc-lithium alloys, easy flux inclusions in castings, complicated processes, etc. Roughness, the effect of reducing the amount of alloying elements used

Inactive Publication Date: 2018-05-01
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the disadvantages of high cost to varying degrees, flux inclusions in castings, and complicated equipment.
Therefore, the research, development and application of zinc-lithium alloys are limited.
Therefore, in the industrial and national defense fields that urgently need large-scale use of zinc-lithium alloys, there has always been a status quo that needs to be overcome urgently, such as low output, cumbersome processes, and high costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A 450-degree melting Li-Al-Sn-containing zinc-lithium alloy with high damping and high thermal conductivity. By weight percentage, the chemical composition is: Li: 1.2wt.%, Al: 14.5wt.%, Ba: 0.3wt.%, Sn: 0.4wt.%, Mg: 0.6wt.%, Y: 0.5wt.% , Mo: 0.3wt.%, Th: 0.1wt.%, Er: 0.2wt.%, and the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the induction furnace under the atmospheric environment, and use a silicon carbide crucible. Induction heating to 450 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is kept at 450 degrees for 10 minutes and poured into the equipment at the same level as the hot top for semi-continuous casting, and the ingot moving speed is 10m / min. The ingot is deformed at room temperature, and the amount of rolling in each pass is 12%; every 3 passes of rolling require an intermediate heat treatment to eliminate work hardening, the p...

Embodiment 2

[0021] A 480-degree melting Li-Al-Sn-containing zinc-lithium alloy with high damping and high thermal conductivity. By weight percentage, the chemical composition is: Li: 1.2wt.%, Al: 14.5wt.%, Ba: 0.3wt.%, Sn: 0.4wt.%, Mg: 0.6wt.%, Y: 0.5wt.% , Mo: 0.3wt.%, Th: 0.1wt.%, Er: 0.2wt.%, and the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the induction furnace under the atmospheric environment, and use a silicon carbide crucible. Induction heating to 480 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is kept at 480 degrees for 10 minutes and poured into the equipment at the same level as the hot top for semi-continuous casting, and the ingot moving speed is 12m / min. The ingot is deformed at room temperature, and the amount of rolling in each pass is 13%; every 3 passes of rolling require an intermediate heat treatment to eliminate work hardening, the p...

Embodiment 3

[0024] A 490-degree melting Li-Al-Sn-containing zinc-lithium alloy with high damping and high thermal conductivity. By weight percentage, the chemical composition is: Li:0.9wt.%, Al:15.3wt.%, Ba:0.3wt.%, Sn:0.4wt.%, Mg:0.7wt.%, Y:0.5wt.% , Mo: 0.3wt.%, Th: 0.1wt.%, Er: 0.2wt.%, and the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the induction furnace under the atmospheric environment, and use a silicon carbide crucible. Induction heating to 490 degrees to form an alloy solution, and use the electromagnetic effect to fully stir for about 10 minutes. The alloy liquid is kept at 490 degrees for 10 minutes and poured into the equipment at the same level as the hot top for semi-continuous casting, and the ingot moving speed is 12m / min. The ingot is deformed at room temperature, and the amount of rolling in each pass is 14%; every 3 passes of rolling requires an intermediate heat treatment to eliminate work hardening, the proces...

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Abstract

The invention discloses a Li-Al-Sn-containing high-damping high-thermal-conductivity Zn-Li alloy. The alloy comprises, by weight, 0.4-1.5% of Li, 10.0-18.5% of Al, 0.2-0.4% of Ba, 0.4-0.5% of Sn, 0.5-0.9% of Mg, 0.5-0.6% of Y, 0.2-0.5% of Mo, 0.1-0.2% of Th, 0.2-0.3% of Er, and the balance Zn. Compared with a traditional Zn alloy, the Li-Al-Sn-containing high-damping high-thermal-conductivity Zn-Li alloy has excellent damping performance and heat conductivity.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a zinc alloy. Background technique [0002] Zinc alloy is a cheap, energy-saving and high-quality new material that has been widely used at home and abroad in recent decades. It has 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. 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, graphite mold, continuous casting, etc. Moreover, the source of raw materials is wide, the price is low, the energy consumption is low when melting, no pollution, and the service life is long. It is a new type of alloy that is developing rapidly at home and abroad. At present, it has been used in industry to partially replace structural materials such as bronze, brass, cast ir...

Claims

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Application Information

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IPC IPC(8): C22C18/04C22F1/16C22F1/02
CPCC22C18/04C22F1/02C22F1/165
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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