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High-wear-resistance high-thermal-conductivity zinc alloy containing strontium and sodium and machining process thereof

A technology with high wear resistance and high thermal conductivity, applied in the field of alloys, can solve the problems of limitations in research, development and application, easy to produce flux inclusions in castings, cumbersome process, etc. , the effect of reducing the amount of alloying elements used

Inactive Publication Date: 2018-05-08
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 strontium and sodium-zinc alloys are limited
Therefore, in the industrial and national defense fields that urgently need large-scale use of strontium-containing and sodium-zinc alloys, there have always been existing problems such as low output, cumbersome processes, and high costs that urgently need to be overcome.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A 450-degree smelting zinc alloy containing strontium and sodium, high wear resistance and high thermal conductivity. In terms of weight percentage, the chemical composition of the alloy is: Na: 1.1wt.%, Sr: 0.3wt.%, In: 5.2wt.%, Zr: 0.9wt.%, Si: 0.5wt.%, Sn: 2.8wt .%, Yb: 0.4wt.%, Nd: 0.1wt.%, S: 0.9wt.%, 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 12m / min. The ingot is deformed at room temperature, and the amount of rolling in each pass is 9%; an intermediate heat treatment is required for every 3 passes of rolling t...

Embodiment 2

[0020]A 480-degree smelting zinc alloy containing strontium and sodium, high wear resistance and high thermal conductivity. In terms of weight percentage, the chemical composition of the alloy is: Na: 1.0wt.%, Sr: 0.2wt.%, In: 4.8wt.%, Zr: 0.9wt.%, Si: 0.5wt.%, Sn: 2.9wt .%, Yb: 0.4wt.%, Nd: 0.1wt.%, S: 0.9wt.%, 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 reduction in each pass is 9%; an intermediate heat treatment is required for every 3 passes of rolling ...

Embodiment 3

[0022] A 490-degree smelting zinc alloy containing strontium and sodium, high wear resistance and high thermal conductivity. In terms of weight percentage, the chemical composition of the alloy is: Na: 1.1wt.%, Sr: 0.2wt.%, In: 6.2wt.%, Zr: 1.1wt.%, Si: 0.7wt.%, Sn: 2.8wt .%, Yb: 0.3wt.%, Nd: 0.1wt.%, S: 0.8wt.%, 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 8%; every 3 passes of rolling requires an intermediate heat treatment to elimi...

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Abstract

The invention discloses a high-wear-resistance high-thermal-conductivity zinc alloy containing strontium and sodium. The alloy comprises, by weight, 0.8-1.2wt% of Na, 0.2-0.3wt% of Sr, 4. 5-6.3wt% ofIn, 0.8-1.2wt% of Zr, 0.4-0. 8wt% of Si, 2.4-3.6wt% of Sn, 0.2-0.5wt% of Yb, 0.1-0.2wt% of Nd, 0.8-1.0wt% of S and the balance of zinc. Compared with a traditional zinc alloy, the high-wear-resistancehigh-thermal-conductivity zinc alloy containing strontium and sodium has excellent mechanical property and heat conduction performance.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a zinc alloy. Background technique [0002] Zinc alloy has good plastic deformation ability and casting fluidity, because of its high specific stiffness and specific strength, low melting point, low manufacturing cost, easy processing and molding, etc., it is widely used in aerospace, weaponry, petrochemical, machinery, etc. Manufacturing and other industries. Zinc alloy has many advantages: Good casting performance, can die-cast precision parts with complex shapes and thin walls, and the surface of castings is smooth. Surface treatment can be carried out: electroplating, spraying, painting, polishing, grinding, etc. It does not absorb iron during melting and die casting, does not corrode the pressing type, and does not stick to the mold. In terms of mechanical properties, zinc alloy has high strength and wear resistance, as well as impact plastic deformation resistance and eas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/00C22C1/02C22F1/16C22F1/02
CPCC22C18/00C22C1/02C22F1/02C22F1/165
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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