A high plasticity rare earth deformed magnesium alloy

A technology for deforming magnesium alloys and high plasticity, applied in the field of magnesium alloy materials, can solve the problems of hot tendency, low degree of alloying, coarse grains, etc., and achieve the effects of increasing fluidity, improving mechanical properties, and improving hot deformation plasticity.

Active Publication Date: 2016-05-18
SHANXI BADA MAGNESIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Mg-2Zn-lMn is a type of alloy with a lower degree of alloying in the Mg-Zn series alloys. Its hot extrusion performance is better than that of AZ31 alloy, and it is suitable for rapid extrusion to reduce product costs. Enthusiasm

Method used

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  • A high plasticity rare earth deformed magnesium alloy
  • A high plasticity rare earth deformed magnesium alloy
  • A high plasticity rare earth deformed magnesium alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Put the preheated 748.3kg magnesium ingot into figure 1 The round crucible of the melting furnace is melted with flux. The amount of flux accounts for 4-7% of the total charge. During the melting process, a covering agent is sprinkled to prevent burning. The entire melting process is controlled within 3-6 hours, and the final temperature of the magnesium liquid is controlled at 670- 690°C. After melting, use a stirring device to add 11.6kg of zinc ingots and 6.7kg of manganese powder during the process of heating and stirring. At 720-750°C, use a feeding device to evenly add refining agent. The amount of refining agent accounts for 2-3% of the total furnace charge. Refining 40 -60min, after refining, use the slag extractor to clean the slag, then raise the temperature to 760-770°C, add 22.4kgMg-30%Nd, 12.50kgMg-30%Y with a colander, and blow and refine for 5-10min. The magnesium liquid is left to cool down to allow the flux and inclusions to settle. The whole process t...

Embodiment 2

[0027] Put the preheated 741kg magnesium ingot into figure 1 The round crucible of the melting furnace is melted with flux. The amount of flux accounts for 4-7% of the total charge. During the melting process, a covering agent is sprinkled to prevent burning. The entire melting process is controlled within 3-6 hours, and the final temperature of the magnesium liquid is controlled at 670- 690°C. After melting, use a stirring device to add 19.8kg zinc ingots and 11kg manganese powder during the process of heating and stirring. When the temperature is 720-750°C, use a feeding device to evenly add refining agent. The amount of refining agent accounts for 2-3% of the total furnace charge. After 60 minutes of refining, clean the slag with a slag extractor, then raise the temperature to 760-770°C, add 20.0kgMg-30%Nd, 14.50kgMg-30%Y with a colander, and refine by air blowing for 5-10min. The magnesium liquid is left to cool down to allow the flux and inclusions to settle. The whole p...

Embodiment 3

[0029]Put the preheated 734kg magnesium ingot into the round crucible of the melting furnace shown in Figure 1 and add flux to melt. The amount of flux accounts for 4-7% of the total charge, and the covering agent is sprinkled during the melting process to prevent burning. The entire melting process is controlled at 3- 6 hours, and the final temperature of the magnesium solution is controlled at 670-690°C. After melting, use a stirring device to add 15.2kg of zinc ingots and 6.5kg of manganese powder during the process of heating and stirring, and add refining agent evenly with a feeding device at 720-750°C. The amount of refining agent accounts for 2-3% of the total furnace charge. Refining 40 -60min, after refining, use the slag extractor to clean the slag, then raise the temperature to 760-770°C, add 22.0kgMg-30%Nd, 17.50kgMg-30%Y with a colander, and blow and refine for 5-10min. The magnesium liquid is left to cool down to allow the flux and inclusions to settle. The whole...

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Abstract

The invention discloses a high-ductility rare earth wrought magnesium alloy Mg-Zn-Mn-Nd-Y. The magnesium alloy is prepared from the following components in percentage: 1.3-2.5% of Zn, 0.7-1.3% of Mn, 0.3-0.7% of Nd, 0.3-0.7% of Y, and the balance of magnesium and unavoidable impurities. In the high-ductility rare earth wrought magnesium alloy disclosed by the invention, Mn, Nd and Y are added based on the low alloyed Mg-Zn system to refine grains, so as to improve the strength at room temperature, heat stability and plastic forming performance; the hot extrusion performance of the alloy is better than that of an AZ31 alloy, the alloy is good in hot working plasticity, and capable of being quickly subjected to compressional deformation; at the room temperature, the tensile strength is 260-295 MPa, the yield strength is 190-208 MPa, and the ductility is 19-30%. When used for industrial production, the high-ductility rare earth wrought magnesium alloy can be extruded and machined to obtain a plate, a bar, a pipe, a profile and a forge piece product with diversified sizes.

Description

technical field [0001] The invention relates to a magnesium alloy material, especially a Mg-Zn-Mn alloy, and a preparation method of the alloy material. Background technique [0002] Among engineering metal materials, the most notable feature of magnesium is its light weight. Magnesium alloy has a series of advantages such as high specific strength, high specific stiffness, good vibration damping performance, and strong radiation resistance. It is a very important metal structural material and functional material in the future. As countries around the world pay more and more attention to energy and environmental protection, a new situation has emerged in the research and development of magnesium, and magnesium has become a new type of engineering material that is rising rapidly. [0003] Mg-2Zn-lMn is a type of alloy with a lower degree of alloying in the Mg-Zn series alloy. Its hot extrusion performance is better than that of AZ31 alloy. Warm tendencies. Contents of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C23/04C22C1/06C22C1/03
CPCC22C1/03C22C1/06C22C23/00C22C23/04
Inventor 刘青春刘英伟翟海涛
Owner SHANXI BADA MAGNESIUM
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