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Preparation method of magnesium-aluminum alloy

A technology of magnesium-aluminum alloy and metal titanium is applied in the field of preparation of magnesium-aluminum alloy, which can solve the problems of easy fracture, wear, high labor intensity of workers, low production efficiency, etc. Effect

Inactive Publication Date: 2018-05-08
LUOYANG SHENJIA KILN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional magnesium-aluminum alloys, due to limitations in material development and preparation processes, make magnesium-aluminum alloys prone to defects such as fracture and wear during use, resulting in low yields, waste of raw materials, low production efficiency, and high labor intensity for workers. high production cost

Method used

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  • Preparation method of magnesium-aluminum alloy
  • Preparation method of magnesium-aluminum alloy

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The high-purity magnesium 20%, the metal titanium 3%, the metal manganese 5%, the metal copper 8%, the metal iron 2%, and the high-purity aluminum 57% are batched according to the mass percentage, and smelted at 800 ℃ in a nitrogen atmosphere, keeping the temperature in the smelting furnace. The pressure is 800Pa; after smelting for 2h, keep the temperature at 600℃, add 5% of silicon nitride according to the mass percentage, stir to make it evenly dispersed, and then smelt for 1h, keeping the pressure in the smelting furnace at 600Pa; Pouring to obtain a magnesium-aluminum alloy ingot, and annealing and cooling the magnesium-aluminum alloy ingot to obtain a magnesium-aluminum alloy material.

Embodiment 2

[0033] The high-purity magnesium 26%, the metal titanium 5%, the metal manganese 6%, the metal copper 6%, the metal iron 3%, and the high-purity aluminum 51% are batched according to the mass percentage, and smelted at 900 ℃ under a nitrogen atmosphere, keeping the temperature in the smelting furnace. The pressure is 900Pa; after smelting for 2h, keep the temperature at 600℃, add 3% of silicon nitride according to the mass percentage, stir to make it evenly dispersed, and then smelt for 1h, keeping the pressure in the smelting furnace at 500Pa; Pouring to obtain a magnesium-aluminum alloy ingot, and annealing and cooling the magnesium-aluminum alloy ingot to obtain a magnesium-aluminum alloy material.

Embodiment 3

[0035] The high-purity magnesium 30%, the metal titanium 2%, the metal manganese 8%, the metal copper 4%, the metal iron 2%, and the high-purity aluminum 48% are batched according to the mass percentage, and smelted at 800 ℃ in a nitrogen atmosphere, keeping the temperature in the smelting furnace. The pressure is 1000Pa; after smelting for 2h, keep the temperature at 600℃, add 6% of silicon nitride according to the mass percentage, stir to make it evenly dispersed, and then smelt for 1h, keeping the pressure in the melting furnace at 800Pa; Pouring to obtain a magnesium-aluminum alloy ingot, and annealing and cooling the magnesium-aluminum alloy ingot to obtain a magnesium-aluminum alloy material.

[0036] Through experimental verification, in the above-mentioned embodiments, the magnesium-aluminum alloy material obtained in Example 2 has relatively better performance.

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Abstract

The invention relates to a preparation method of a magnesium-aluminum alloy. High-purity magnesium, metallic titanium, metallic manganese, metallic copper, metallic iron and high-purity aluminum are compounded according to the mass percentage and smelted under the nitrogen atmosphere; after two hours of smelting, the temperature is kept to be 600 DEG C, silicon nitride is added and stirred to be dispersed evenly, smelting is conducted again for one hour, the pressure intensity in a smelting furnace is kept to be 500-800 Pa; and smelted metal liquid is poured, thus a magnesium-aluminum alloy ingot is obtained, the magnesium-aluminum alloy ingot is annealed and cooled, and thus a magnesium-aluminum alloy material is obtained. The preparation method is simple, easy to operate, high in production efficiency and low in cost, and the obtained magnesium-aluminum alloy has ultrahigh harness, strength and abrasion resistance, and is good in stability, not liable to fracture, free of generated impurity phases and wide in application range.

Description

technical field [0001] The invention relates to the technical field of metal material preparation, in particular to a preparation method of magnesium-aluminum alloy Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in the industry. Pure aluminum has low density, low melting point, high plasticity and easy processing. It can be made into various profiles, plates, and metal materials with good corrosion resistance. . However, the strength of pure aluminum is very low, and it is not suitable for structural materials. [0003] Magnesium-aluminum alloy material has the advantages of light weight, hardness, strong corrosion resistance, good heat dissipation and good shock absorption performance, and has been widely used in recent years. Especially in the field of mobile phones, the application of magnesium-aluminum alloy materials can increase the metal texture and improve the experience effect. In the face of the rapid de...

Claims

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Application Information

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IPC IPC(8): C22C1/02C22C21/08C22C32/00
CPCC22C1/026C22C21/08C22C32/0068
Inventor 蔡泽
Owner LUOYANG SHENJIA KILN
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