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A kind of alsi10mg powder material and its preparation method and its application

A powder material and hollow powder technology, which is applied in metal material coating process, welding/cutting medium/material, welding equipment, etc., can solve the problems of low product performance, small output, and difficult preparation of 3D printing metal powder, etc., to achieve Good manufacturability and corrosion resistance, low density effect

Active Publication Date: 2019-11-08
BEIJING BAOHANG ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 3D printing metal powder has problems such as difficult preparation, small output, and low product performance
The aforementioned literature only discloses that AlSi10Mg is used as a general component of 3D printing powder, and does not screen and optimize the composition and proportion of the powder material, and the oxygen content in the powder material is relatively high (such as 1000-2000ppm), and the impurity elements are high ( Such as Fe element content ≥ 0.40%, C element content ≥ 0.01%)

Method used

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  • A kind of alsi10mg powder material and its preparation method and its application
  • A kind of alsi10mg powder material and its preparation method and its application
  • A kind of alsi10mg powder material and its preparation method and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Example 1 Preparation of AlSi10Mg Powder Material

[0079] Adopt inert gas atomization method granulation to prepare AlSi10Mg powder material, comprise the following steps:

[0080](1) Take the required amount of raw material aluminum-silicon alloy, aluminum ingot, and magnesium ingot according to Table 1, and place it in the melting crucible;

[0081] (2) After evacuating the melting crucible to a vacuum degree of 3.2 Pa, fill it with argon to slightly positive pressure;

[0082] (3) Melting the aluminum-silicon alloy, refined aluminum ingot, and magnesium ingot into a solution at 860°C, and keeping the obtained smelting solution at 810°C for 40 minutes to obtain an alloy smelting solution;

[0083] (4) Pass argon gas into the smelting crucible until its pressure is 2.0MPa, and atomize the obtained alloy smelting liquid;

[0084] (5) After the atomization finishes, close the pressure equalizing valve, blow argon into the furnace body to atmospheric pressure, and c...

Embodiment 2

[0086] Example 2 Preparation of AlSi10Mg Powder Material

[0087] Adopt inert gas atomization method granulation to prepare AlSi10Mg powder material, comprise the following steps:

[0088] (1) Take the required amount of raw material aluminum-silicon alloy, aluminum ingot, and magnesium ingot according to Table 1, and place it in the melting crucible;

[0089] (2) After the melting crucible is evacuated to a degree of vacuum of 3.5 Pa, it is then filled with nitrogen to atmospheric pressure;

[0090] (3) melting the aluminum-silicon alloy, aluminum ingot, and magnesium ingot into a solution at 850°C, and keeping the obtained melting solution at 800°C for 35 minutes to obtain an alloy melting solution;

[0091] (4) Pass argon gas into the smelting crucible until its pressure is 2.5MPa, and the alloy smelting liquid prepared is atomized;

[0092] (5) After the atomization ends, close the pressure equalizing valve, blow nitrogen into the furnace body to a slight positive pre...

Embodiment 3-8

[0094] Example 3-8 Preparation of AlSi10Mg Powder Material

[0095] The preparation process of Example 3-6 AlSi10Mg powder material is the same as that of Example 1, and the preparation process of Example 7-8 AlSi10Mg powder material is the same as that of Example 2.

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Abstract

The invention relates to an AlSi10Mg powder material for 3D printing and a preparation method and application thereof. The main alloying elements of the powder material comprises, by mass, 9.0-11.5% of Si; 0.2-0.50% of Mg and the balance aluminum. According to the preparation method of the AlSi10Mg powder material, the powder material is prepared by adopting the method of inert gas atomization; high speed airflow is used to crush a high temperature melting fluid of the powder material into small liquid droplets to cool down the small liquid droplets rapidly and to make the small liquid droplets freeze into mental powder. The mental powder obtained is sieved and, size grading is conducted on the mental powder. The AlSi10Mg powder material is obtained. The AlSi10Mg powder material meets thequality requirements of industrial grade mental powder materials for 3D printing; and the AlSi10Mg powder material has the advantages of being high in purity, low in impurity content, even in alloyingcomponent, low in oxygen content, high in degree of sphericility, few in satellite ball, even in powder particle size distribution, controllable in quality and excellent in powder property.

Description

technical field [0001] The invention relates to the field of powder materials for metal 3D printing, in particular to an AlSi10Mg powder material and its preparation method and application. Background technique [0002] 3D printing is an emerging and rapidly developing rapid prototyping manufacturing technology, which is widely used in the manufacture of modern models, molds and parts in military, aerospace, biomedical and other fields. Its outstanding advantage is that it does not require or requires less machining or molds. Parts with complex structures and shapes can be directly generated from computer graphics data, which can significantly shorten the product development cycle, improve the utilization efficiency and production efficiency of raw materials, and reduce production costs. [0003] 3D printing materials must have physical and chemical properties such as the ability to liquefy, powderize, silken, and recombine after printing. As an important development direct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B22F9/08C22C21/02C22C1/03B33Y70/00C23C4/06B23K35/28
CPCB22F1/0003B22F9/082B23K35/286B33Y70/00C22C1/026C22C1/03C22C21/02C23C4/06
Inventor 李振民刘干孟庆宇王联波
Owner BEIJING BAOHANG ADVANCED MATERIALS CO LTD
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