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Powder feeding device for laser high-throughput preparation base on automatic adjustment of multi-component material composition

A material composition, automatic adjustment technology, applied in the direction of metal material coating process, additive processing, coating, etc., can solve the problem of inability to meet the requirements of high-throughput laser preparation, and meet the requirements of high-throughput laser preparation. Application prospect, simple operation effect

Inactive Publication Date: 2020-11-10
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the condition of constant powder feeding rate, only samples with a single component or tissue structure can be prepared, which cannot meet the requirements of laser high-throughput preparation of multi-component complex component ratio samples.

Method used

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  • Powder feeding device for laser high-throughput preparation base on automatic adjustment of multi-component material composition
  • Powder feeding device for laser high-throughput preparation base on automatic adjustment of multi-component material composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The five-element zirconium-based amorphous alloy Zr-Cu-Ni-Ag-Al is taken as an example, referring to the reported component Zr with excellent amorphous forming ability 50.12 Cu 35.22 Ni 2.69 Ag 2.69 Al 9.28 , in five groups of powder hoppers connected in parallel in the present invention, respectively pour a sufficient amount of Zr powder, Cu powder, Ni powder, Ag powder and Al powder (powder purity and particle size meet corresponding experimental requirements). Five sets of parallel turntables are given different initial rotation speeds and rotation accelerations to rotate at variable speeds at the same time, realizing the high-throughput laser preparation of Zr-Cu-Ni-Ag-Al amorphous alloy samples with different composition ratios, ensuring that the prepared sample library appears The composition is Zr 50.12 Cu 35.22 Ni 2.69 Ag 2.69 Al 9.28 The stability of the sample and final powder feeding speed. This method is expected to find and excavate alloy component...

Embodiment 2

[0039] The previous steps are the same as in Example 1. The turntables endowed with Zr powder, Al powder, Ni powder and Cu powder rotate at different initial rotation speeds and rotation accelerations at the same time, while the Ag powder is temporarily not transported to the laser processing area. Measure the corresponding weight loss of different powders during the powder transfer process and record them accurately. Al powder is deposited along the laser melting on the formed Zr-Cu-Ni-Ag sample. The powder feeding amount and the rotating speed of the turntable are coordinated according to the previous Zr-Cu-Ni-Ag feeding amount to ensure the sum of the powder feeding amount of the two successively. Precise and stable. Finally, choose to carry out laser remelting on the laser walking track of the Zr-Cu-Ni-Ag-Al amorphous sample. This is firstly to improve the kinetic conditions of the amorphous and promote the formation of the amorphous; secondly, to promote the alloying elem...

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Abstract

The invention belongs to the field of high-throughput preparation of materials, and particularly relates to a powder feeding device for laser high-throughput preparation based on real-time automatic adjustment of multi-component material composition proportion and a process method. The device is mainly composed of a control computer, powder hoppers, rotating tables, scraping plates, weight sensors, powder collectors, flow sensors and the like. Different from the fact that an existing powder feeding device with a rotating table with constant rotating speed can only be used for preparing sampleswith a single composition proportion at a time and cannot meet the high-throughput preparation requirements of a large number of samples with different composition proportions, the device endows theplurality of parallel rotating tables with different initial rotating speeds and rotating accelerations to rotate at the same time at variable speeds, so that the powder composition proportion can beautomatically adjusted in real time, and the final powder feeding amount can be stably controlled in real time; and under the condition that the powder feeding speed does not need to be manually adjusted multiple times, the powder feeding device for laser high-throughput preparation based on real-time automatic adjustment of multi-component material composition proportion and the process method can achieve laser high-throughput preparation of multi-component complex alloys, metal-based compounds or gradient materials.

Description

technical field [0001] The invention belongs to the field of high-throughput preparation of materials, and specifically relates to a laser high-throughput preparation powder feeding device and a process method based on the automatic adjustment of the composition ratio of multi-component materials from time to time. Background technique [0002] "Materials high-throughput preparation" is an important part and implementation method of the Materials Genome Project. On the basis of changing the trial-and-error method mainly based on "sequential iteration" in the past, it prepares a large number of materials through fast and efficient serial or parallel methods. A large number of samples that cannot be produced in a short time by traditional techniques. High-throughput preparation not only subverts the old material preparation method, but also adopts a new material research and development model, which shortens the research and development cycle and greatly improves the efficienc...

Claims

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Application Information

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IPC IPC(8): B22F3/105B33Y30/00C23C24/10
CPCB33Y30/00C23C24/10
Inventor 朱正旺刘明磊张海峰付华萌张宏伟王爱民李宏张龙李正坤
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI