Alloy for refinement of magnesium and alloy grain thereof and preparation method of alloy

A technology of grain refinement and grain refiner, applied in the field of grain refiner of magnesium and magnesium alloys and its preparation, can solve the problems of easy boiling of melt, no master alloy found, and rarely used, etc. Achieving a high degree of refinement and promoting the effect of wide application

Active Publication Date: 2012-11-14
SHENZHEN SUNXING LIGHT ALLOYS MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this refiner is added, the melt is easy to boil, so it is rarely used in production.
In summary, compared with the aluminum alloy industry, the magnesium alloy industry has not yet found a general-purpose grain refinement master alloy, and the scope of use of various grain refinement methods also depends on the alloy system or alloy composition

Method used

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  • Alloy for refinement of magnesium and alloy grain thereof and preparation method of alloy
  • Alloy for refinement of magnesium and alloy grain thereof and preparation method of alloy
  • Alloy for refinement of magnesium and alloy grain thereof and preparation method of alloy

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Weigh 100kg of aluminum and place it in the reactor, raise the temperature to 750°C, add a mixture of 15.8kg of potassium fluorozirconate and 11.58kg of potassium fluoroborate into the reactor; It is an aluminum-zirconium-boron alloy 94%Al-5%Zr-1%B; the obtained aluminum-zirconium-boron alloy is left standing to remove slag and kept warm, and then rolled into a wire rod with a diameter of 9.5mm by continuous casting and rolling.

Embodiment 2

[0036] Weigh 100kg of aluminum and place it in the reactor, raise the temperature to 700°C, and then add a mixture of 14kg of sodium fluorozirconate and 10.1kg of sodium fluoroborate into the reactor; after stirring for 6 hours, the molten liquid in the upper layer is drawn out, and the lower layer is Aluminum zirconium boron alloy 94%Al-5%Zr-1%B;. The obtained aluminum-zirconium-boron alloy is left standing to remove slag and kept warm, and then directly casted and used.

Embodiment 3

[0038] Weigh 100kg of aluminum and place it in the reactor, raise the temperature to 800°C, add a mixture of 32.23kg of potassium fluozirconate and 23.74kg of potassium fluoborate into the reactor; It is an aluminum-zirconium-boron alloy 88%Al-10%Zr-2%B; the obtained aluminum-zirconium-boron alloy is left standing to remove slag and kept warm, and then rolled into a wire rod with a diameter of 9.5mm by continuous casting and rolling.

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Abstract

The invention provides an alloy for refinement of magnesium and an alloy grain thereof and a preparation method of the alloy. A grain refinement agent alloy is an aluminum-zirconium-boron intermediate alloy, and comprises the following components in percent by weight: 5-20 percent of Zr, 0.5-4 percent of B and the balance of Al. The invention has the beneficial effects that the intermediate alloy with excellent capacity of refining the magnesium and the magnesium alloy grain due to strong core forming capacity is invented, and a preparation method is provided; and the grain refinement agent can be industrially applied to casting deformation plastic processing of the magnesium and the magnesium alloy section, is high in refinement degree, and promotes the wide application of the magnesium in the industry.

Description

technical field [0001] The invention relates to an intermediate alloy for improving the properties of metals and alloys by refining grains, in particular to a grain refiner for magnesium and magnesium alloys and a preparation method thereof. Background technique [0002] Magnesium and its alloys are the lightest metal structural materials at present, with low density, high specific strength and specific stiffness, good damping and shock absorption, good thermal conductivity, good electromagnetic shielding effect, excellent machining performance, stable size of parts, and easy recycling And other advantages, so that magnesium and its alloys, especially wrought magnesium alloys, have great application potential in vehicles, engineering structural materials, and electronics. Deformed magnesium alloys refer to magnesium alloys that can be formed by plastic forming methods such as extrusion, rolling, forging, etc. However, due to the constraints of material preparation, processi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/02
CPCC22C1/02C22C1/06C22C21/00C22C1/03B22D11/116C22B9/00C22C23/00
Inventor 陈学敏杨军李志红伍卫平韦世铭
Owner SHENZHEN SUNXING LIGHT ALLOYS MATERIALS CO LTD
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