Device for preparing high-strength alloy through semi-continuous extrusion of metal powder and preparation process

A technology for high-strength alloys and metal powders, which is applied in the field of devices for preparing high-strength alloys by semi-continuous extrusion of metal powders, can solve the problem of low mechanical properties, poor quality of high-strength alloy ingots or profiles, and inability to achieve semi-continuous production and other problems, to achieve the effect of improving the mechanical properties of materials, increasing the scope of application and simple structure

Active Publication Date: 2021-12-24
四川科匠轻金属材料科技有限公司
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a device and a preparation process for preparing high-strength alloys by semi-continuous extrusion of metal powder, so as to solve the problem of poor quality and low mechanical properties of high-strength alloy ingots or profiles prepared by existing high-strength alloy preparation processes , the problem that semi-continuous production cannot be realized

Method used

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  • Device for preparing high-strength alloy through semi-continuous extrusion of metal powder and preparation process
  • Device for preparing high-strength alloy through semi-continuous extrusion of metal powder and preparation process
  • Device for preparing high-strength alloy through semi-continuous extrusion of metal powder and preparation process

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Embodiment 1

[0054] Please refer to figure 1 , a device for preparing high-strength alloys by semi-continuous extrusion of metal powder, including: a preparation chamber 10, a heat preservation device 20, a forming device 30, an extrusion device 40, a pre-jacking device 50 and a cutting device 60. The preparation bin 10 is a closed structure, and its inside is provided with a vacuum device 11, which is a conventional vacuum device, which can reduce the degree of vacuum in the preparation bin 10 to 10°C. -1 ~10 -2 Pa, used to extract the air in the preparation chamber 10 to prevent excessive oxidation of metal powder and adsorption of gas. The preheating device 20 is arranged on the inner top wall of the preparation bin 10, the molding device 30 is arranged on the inner bottom wall of the preparation bin 10, the extrusion device 40 is arranged on the top side wall of the preparation bin 10, and the extrusion device is opposite to the molding device 30 Setting, the pre-jacking device 50 is...

Embodiment 2

[0068] A high-strength alloy preparation process based on the semi-continuous extrusion of metal powder in embodiment 1 to prepare a high-strength alloy device, comprising the following steps:

[0069] S1: Feed the externally heated metal powder into the heat preservation box 25 from the powder inlet 21, heat the heat through the first heating device 24, and keep the temperature stable. The occurrence of melting and other phenomena shall prevail (such as AZ31B magnesium alloy powder, the holding temperature is 150-200 ℃);

[0070]S2: Extend the pressing head 51 of the pre-ejecting device 50 into the forming extrusion chamber 315, block the forming extrusion chamber 315, and set the pre-ejecting pressure of the pre-ejecting device 50;

[0071] S3: Start the second heating device 32, heat the molding channel, and keep the temperature stable. The preheating temperature is based on the fact that the powder processing performance is good, and the phenomena such as excessive precipi...

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Abstract

The invention discloses a device for preparing a high-strength alloy through semi-continuous extrusion of metal powder and a preparation process, and belongs to the technical field of metal material forming machining. The device comprises a preparation bin, a heat preservation device, a forming device, an extrusion device, a pre-jacking device and a cutting device, wherein the heat preservation device, the forming device and the extrusion device are arranged in the preparation bin, and the pre-jacking device and the cutting device are arranged outside the preparation bin; and after being subjected to heat preservation in the heat preservation device, metal powder is heated by the forming device, extruded by the extrusion device, pre-jacked by the pre-jacking device and cut by the cutting device, and finally a high-strength alloy ingot or profile is formed. Compared with a traditional production mode of the high-strength alloy, the technologies of powder metallurgy, warm pressing forming, warm extrusion, plastic rheological shearing and the like are combined, the defects of a traditional production technology of the high-strength alloy are overcome, and large-size and semi-continuous production of the high-strength alloy can be achieved.

Description

technical field [0001] The invention relates to the technical field of metal material forming and processing, in particular to a device and a preparation process for preparing high-strength alloys by semi-continuous extrusion of metal powder. Background technique [0002] In recent years, the research and application of high-strength alloys (such as high-strength magnesium / aluminum alloys) have developed rapidly with the continuous improvement of high-strength or lightweight requirements in aerospace, aviation, mechanical engineering, and modern rail transit industries. [0003] Usually, the preparation of high-strength alloy ingots or profiles is not only the raw material for subsequent plastic processing such as hot rolling, extrusion, forging, etc., but also the primary guarantee for further deep processing and application of high-strength alloys. [0004] At present, domestic enterprises mostly use casting or casting-plastic processing for the preparation of high-strengt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/20B22F3/24B22F3/14B22F3/00
CPCB22F3/20B22F3/24B22F3/14B22F3/003B22F2003/208B22F2003/247B22F2003/145B22F2998/10Y02P10/25
Inventor 陈云贵杨超
Owner 四川科匠轻金属材料科技有限公司
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