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Preparation of ultra-high damping manganese-copper alloy by directional solidification and preparation method thereof

A manganese-copper alloy, directional solidification technology, applied in the direction of improving energy efficiency, process efficiency, etc., can solve the problem of low damping performance, and achieve the effect of low production cost

Active Publication Date: 2022-07-12
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing manganese-copper-based damping alloy materials do not have the best mechanical combination of the vector characteristics of noise transmission and the dislocation movement of the material itself. Therefore, the damping performance of the existing manganese-copper-based damping alloy materials Lower, there is more room for improvement

Method used

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  • Preparation of ultra-high damping manganese-copper alloy by directional solidification and preparation method thereof
  • Preparation of ultra-high damping manganese-copper alloy by directional solidification and preparation method thereof
  • Preparation of ultra-high damping manganese-copper alloy by directional solidification and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In this embodiment, a method for preparing ultra-high damping manganese-copper alloy by directional solidification includes the following steps:

[0036] a. Preparation of master alloy material:

[0037] The raw materials are prepared according to the weight percentage ratio of the components of the ultra-high damping manganese-copper alloy prepared as follows: Mn-20.0wt%Cu-5.0wt.%Ni-2.0wt.%Fe; put the initial raw materials in a crucible, set Melting in a vacuum induction melting furnace, introducing an argon protective atmosphere during the melting period, and controlling the induction heating to 1350 ° C for 20 minutes, so that the initial raw materials are fully melted, and then solidified to obtain a manganese-copper-based master alloy ingot material, which is used as Intermediate raw materials, spare;

[0038] b. Preparation of directionally solidified manganese-copper alloy:

[0039] b-1. Prepare the directional solidification furnace. The upper half of the furn...

Embodiment 2

[0044] This embodiment is basically the same as the first embodiment, and the special features are:

[0045] In this embodiment, a method for preparing ultra-high damping manganese-copper alloy by directional solidification includes the following steps:

[0046] a. Preparation of master alloy material:

[0047] The raw materials are prepared according to the weight percentage of the components of the ultra-high damping manganese-copper alloy prepared as follows: Mn-21.0wt.%Cu-4.0wt.%Ni-1.0wt.%Fe-0.05Ce%; In the crucible, place it in a vacuum induction melting furnace for melting. During the melting period, an argon protective atmosphere is introduced, and the induction heating is controlled to 1250 ° C for 50 minutes, so that the initial raw material is fully melted, and then solidified to obtain a manganese-copper-based master alloy. Ingot material, as an intermediate raw material, standby;

[0048] b. Preparation of directionally solidified manganese-copper alloy:

[0049...

Embodiment 3

[0054] This embodiment is basically the same as the previous embodiment, and the special features are:

[0055] In this embodiment, a method for preparing ultra-high damping manganese-copper alloy by directional solidification includes the following steps:

[0056] a. Preparation of master alloy material:

[0057] The raw materials are prepared according to the weight percentage of the components of the ultra-high damping manganese-copper alloy prepared as follows: Mn-25.0wt% Cu; the initial raw materials are placed in a crucible and placed in a vacuum induction melting furnace for melting. During the melting period Introduce an argon protective atmosphere, and control the induction heating to 1300 ℃ for 50 minutes, so that the initial raw material is fully melted, and then solidified to obtain a manganese-copper-based master alloy ingot material, which is used as an intermediate raw material for standby;

[0058] b. Preparation of directionally solidified manganese-copper al...

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Abstract

The invention discloses a method for preparing an ultra-high damping manganese-copper alloy by directional solidification. The raw materials are prepared according to the weight percentage ratio of the components of the ultra-high damping manganese-copper alloy prepared as follows: Mn: 70.0-80.0wt.%, Cu : 15.0-25.0wt.%, Ni: 0-5.0wt.%, Fe: 0-2.5wt.%, RE: 0-0.05wt.%; the RE is a rare earth element; induction heating to 1250-1350 ℃ insulation For 20-50min, the raw materials are fully melted, thereby obtaining a master alloy ingot; then the master alloy is put into a hollow corundum tube, and the alloy is directional solidified by a directional solidification furnace. According to the transmission of vibration and noise, the method of the present invention often has directionality. Considering that an orientation structure suitable for both twinning motion and dislocation slip is obtained, the damping performance of the prepared alloy will be greatly improved. The damping performance of the alloy of the present invention 5‑8 times that of existing alloys.

Description

technical field [0001] The invention relates to a method for preparing a manganese-copper-based damping alloy with high damping performance, in particular to a method for preparing a manganese-copper alloy with ultra-high damping performance by directional solidification. The alloy prepared by the invention can be applied to aerospace, marine Vibration reduction and noise reduction in engineering, transportation and other fields. Background technique [0002] As modern industrial equipment tends to be high-speed and high-power, this will generate more serious vibration and noise, which will not only deteriorate the human-machine working environment, but also reduce the accuracy of the precision machining process, and may cause electronic Device failure, instrumentation failure, and fatigue of mechanical component materials are extremely detrimental to industrial manufacturing processes, especially precision machining processes. Therefore, vibration and noise control are key...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/03C22C22/00C22F1/16B22D27/04
CPCC22C1/03C22C22/00C22F1/002C22F1/16B22D27/045Y02P10/25
Inventor 田青超张思斌
Owner SHANGHAI UNIV
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