Intermediate alloy material and preparation method thereof

A master alloy and rare earth technology, which is applied in the field of master alloy materials and its preparation, can solve the problems of low bearing force and low strength of magnesium alloys, and achieve the effects of improving creep performance, increasing grain boundary strength, and increasing strength

Inactive Publication Date: 2015-08-05
SUZHOU RICHMOND ADVANCED MATERIAL TECH TRANSFER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength of magnesium alloy is low, only 200-300MPa, and it is mainly used for the manufacture of low-load bearing parts

Method used

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  • Intermediate alloy material and preparation method thereof
  • Intermediate alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The percentage by weight of each component of the master alloy material in Example 1 of the present invention is: magnesium 66wt%, red phosphorus 32wt%, silicon carbide 1.5wt%, rare earth 0.5wt%.

[0025] The preparation method of the master alloy material of the embodiment of the present invention 1, comprises the following steps:

[0026] 1) Prepare magnesium powder, red phosphorus powder, silicon carbide particles and rare earth elements according to weight percentage under conventional conditions;

[0027] 2) Mix and stir the four kinds of powders with moderate weight proportions under the condition of about 10°C, and add an appropriate amount of absolute ethanol during stirring; the stirring time is 30 minutes;

[0028] 3) Put the evenly stirred powder into a mold with a capacity of 1 kg, press it into small pieces and dry it; when pressing, the temperature is about 20°C and the pressure is 80KN;

[0029] 4) Place the completed small block in a vacuum heating furn...

Embodiment 2

[0032] The percentage by weight of each component of the master alloy material in Example 2 of the present invention is: magnesium 71wt%, red phosphorus 28wt%, silicon carbide 0.9wt%, rare earth 0.1wt%.

[0033] The preparation method of the master alloy material of the embodiment of the present invention 2, comprises the following steps:

[0034] 1) Prepare magnesium powder, red phosphorus powder, silicon carbide particles and rare earth elements according to weight percentage under conventional conditions;

[0035] 2) Mix and stir the four kinds of powders with moderate weight proportions under the condition of about 10°C, and add an appropriate amount of absolute ethanol when stirring; the stirring time is 22 minutes;

[0036] 3) Put the evenly stirred powder into a mold with a capacity of 1 kg, press it into small pieces and dry it; when pressing, the temperature is about 20°C and the pressure is 75KN;

[0037] 4) Place the completed small block in a vacuum heating furnac...

Embodiment 3

[0040] The percentage by weight of each component of the master alloy material in Example 3 of the present invention is: magnesium 68wt%, red phosphorus 31wt%, silicon carbide 0.7wt%, rare earth 0.3wt%.

[0041] The preparation method of the master alloy material of the embodiment of the present invention 3, comprises the following steps:

[0042] 1) Prepare magnesium powder, red phosphorus powder, silicon carbide particles and rare earth elements according to weight percentage under conventional conditions;

[0043] 2) Mix and stir the four kinds of powders with moderate weight proportions under the condition of about 10°C, and add an appropriate amount of absolute ethanol when stirring; the stirring time is 24 minutes;

[0044] 3) Put the evenly stirred powder into a mold with a capacity of 1 kg, press it into small pieces and dry it; the temperature during pressing is about 20°C, and the pressure is 78KN;

[0045] 4) Place the completed small block in a vacuum heating furn...

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Abstract

The invention relates to an intermediate alloy material and a preparation method thereof. The intermediate alloy material is prepared from the following components in percentage by weight: 66-71wt% of magnesium, 28-32wt% of red phosphorus, 0.3-1.5wt% of silicon carbide and 0.1-0.5wt% of rare earth. The preparation method comprises the steps of stirring, drying, vacuum smelting and the like. The intermediate alloy material provided by the invention is suitable for being added into a magnesium alloy material for the aerospace field, and the strength of the final magnesium alloy material can be effectively improved; and the strength can be improved from 200-300MPa to 310-350MPa.

Description

technical field [0001] The invention relates to an intermediate alloy material and a preparation method thereof, in particular to an intermediate alloy material for enhancing the strength of a magnesium alloy material for spacecraft and a preparation method thereof. Background technique [0002] Magnesium alloy is an alloy composed of magnesium and other elements. Its characteristics are: low density, good specific performance, good shock absorption performance, good electrical and thermal conductivity, good process performance, and the weight of magnesium is lighter than aluminum, with a specific gravity of only 1.8. Lightest metal construction material used. However, the strength of magnesium alloy is low, only 200-300MPa, and it is mainly used to manufacture low-bearing parts. Therefore, only by further improving the strength properties of magnesium alloys can the advantages of magnesium alloy materials be utilized in a wider range in the aerospace field. [0003] To s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/03C22C23/00
Inventor 孙飞赵勇
Owner SUZHOU RICHMOND ADVANCED MATERIAL TECH TRANSFER CO LTD
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