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Manufacture method for quasicrystalline-phase reinforced magnesium-alloy sheet strip

A manufacturing method and technology for magnesium alloys, which can be applied in the direction of metal rolling, etc., can solve the problems of poor performance of quasicrystalline reinforced magnesium alloys.

Active Publication Date: 2013-10-23
山西银光华盛镁业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method for manufacturing a quasicrystal-strengthened magnesium alloy sheet for the problem that the quasi-crystal phase is coarse in the existing alloy structure and the properties of the quasi-crystal-strengthened magnesium alloy are not outstanding

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  • Manufacture method for quasicrystalline-phase reinforced magnesium-alloy sheet strip
  • Manufacture method for quasicrystalline-phase reinforced magnesium-alloy sheet strip
  • Manufacture method for quasicrystalline-phase reinforced magnesium-alloy sheet strip

Examples

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Embodiment 1

[0022] A method for manufacturing a quasicrystalline phase strengthened magnesium alloy sheet strip, comprising the following steps:

[0023] The magnesium alloy with the alloy composition of Mg-2%Zn-2%Y, which forms a quasicrystalline phase under rapid solidification conditions, is melted and refined under the protection of a mixed solvent of magnesium chloride, potassium chloride, calcium fluoride and potassium fluoride, and is heated at 710 Stand at ℃ temperature for 40min;

[0024]After static heat preservation, the magnesium alloy solution is input into the roll gap of the work rolls of the casting and rolling mill through a sealed pipeline. The solution is condensed and solidified and rolled into a magnesium alloy thin strip containing quasicrystalline dispersed phase. The surface speed of the working rolls of the casting and rolling mill is controlled to 28m / min, the thickness of the magnesium alloy sheet strip is 0.5mm;

[0025] The magnesium alloy whose alloy compos...

Embodiment 2

[0030] A method for manufacturing a quasicrystalline phase strengthened magnesium alloy sheet strip, comprising the following steps:

[0031] The magnesium alloy with the alloy composition of Mg-3%Zn-7%Y, which forms a quasicrystalline phase under rapid solidification conditions, is melted and refined under the protection of a mixed solvent of magnesium chloride, potassium chloride, calcium fluoride and potassium fluoride, and is heated at 715 Stand at ℃ temperature for 45min;

[0032] After static heat preservation, the magnesium alloy solution is input into the roll gap of the work rolls of the casting and rolling mill through a sealed pipeline. The solution is condensed and solidified and rolled into magnesium alloy thin strips containing quasicrystalline dispersed phases. The surface speed of the working rolls of the casting and rolling mill is controlled to 30m / min, the thickness of magnesium alloy sheet strip is 0.6mm;

[0033] The magnesium alloy whose alloy compositi...

Embodiment 3

[0038] A method for manufacturing a quasicrystalline phase strengthened magnesium alloy sheet strip, comprising the following steps:

[0039] The magnesium alloy whose alloy composition is Mg-6%Zn-3%Y, which forms a quasicrystalline phase under rapid solidification conditions, is melted and refined under the protection of a mixed solvent of magnesium chloride, potassium chloride, calcium fluoride and potassium fluoride, and is heated at 720 Stand at ℃ temperature for 50min;

[0040] After static heat preservation, the magnesium alloy solution is input into the roll gap of the work rolls of the casting and rolling mill through a sealed pipeline. The solution is condensed and solidified and rolled into magnesium alloy thin strips containing quasicrystalline dispersed phases. The surface speed of the working rolls of the casting and rolling mill is controlled to 32m / min, the thickness of magnesium alloy sheet strip is 0.7mm;

[0041] The magnesium alloy whose alloy composition ...

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Abstract

The invention relates to a manufacture method for a high-performance magnesium alloy, and specifically relates to a manufacture method for a quasicrystalline-phase reinforced magnesium-alloy sheet strip. The method comprises the following steps: performing dissolving, refine, standing and heat-preserving on a quasicrystalline-phase magnesium alloy formed under a rapid solidification condition; and transporting the magnesium alloy solution after processes of standing and heat-preserving into a roll seam of caster work rolls via a sealed pipeline, chilling and solidifying the solution, and rolling to form the quasicrystalline dispersoid magnesium-alloy sheet strip. The specific steps are: optionally selecting a magnesium alloy; performing dissolving, refine, standing and heat-preserving on the magnesium alloy under the protection of a salt solvent; according to a solid-liquid mass ratio of 0.15-0.25:1, adding the magnesium alloy sheet into a magnesium-alloy solution without quasicrystalline components; transporting the mixed magnesium-alloy solution into the roll seam of the caster work rolls via the sealed pipeline, chilling and solidifying the solution, and rolling to form a sheet strip; and performing cold rolling and heat treatment on the sheet strip to form the quasicrystalline-grain-dispersed sheet strip. The manufacture method helps to solve the problem that the quasicrystalline grain is coarse in the alloy microstructure.

Description

technical field [0001] The invention relates to a method for manufacturing a high-performance magnesium alloy, in particular to a method for manufacturing a quasi-crystal phase strengthened magnesium alloy thin strip. Background technique [0002] The density of magnesium alloy is about 1 / 4 of that of steel and 2 / 3 of that of aluminum, which is similar to that of plastic. It has high specific strength and specific stiffness, good thermal conductivity, good damping and shock absorption, excellent machining performance, stable parts size and Recycling and other advantages, with excellent value and broad application prospects, known as "the most promising green engineering material in the 21st century", magnesium alloys are now widely used in automobiles, aerospace, metallurgy, chemicals, communications, In industries such as electronics and sporting goods, especially since the early 1990s, increasingly urgent energy and environmental issues have greatly stimulated the developm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/04C22C1/06B22D11/06B21B1/46C22F1/06C21D8/02
Inventor 李华伦姜健康
Owner 山西银光华盛镁业股份有限公司