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A kind of light-weight and high-strength mg-ta composite metal sheet and its room temperature rolling forming method

A clad metal, room temperature rolling technology, applied in the field of metal material processing, can solve the problems of unsatisfactory performance, strength and performance, affecting the engineering production efficiency of clad sheets, achieve high interface atomic diffusion speed, and promote atomic diffusion and fusion. , the effect of excellent strength performance

Active Publication Date: 2022-02-22
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, in terms of rolling forming of Mg / Ta in China, as disclosed in Chinese patent CN112742870A, the preparation method of heterogeneous shielding type magnesium-tantalum multilayer composite plate is used in the rolling forming of Mg / Ta. Although the hot-rolled forming of pure tantalum can obtain the formed Mg / Ta composite plate, its performance, especially the strength performance, is not very satisfactory, and the hot-rolled forming process affects the engineering production efficiency of the composite plate.

Method used

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  • A kind of light-weight and high-strength mg-ta composite metal sheet and its room temperature rolling forming method
  • A kind of light-weight and high-strength mg-ta composite metal sheet and its room temperature rolling forming method
  • A kind of light-weight and high-strength mg-ta composite metal sheet and its room temperature rolling forming method

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Embodiment 1

[0044] The room temperature rolling forming method (one-pass rolling) of the lightweight and high-strength Mg-Ta composite metal plate described in this embodiment comprises the following steps:

[0045] (1) Prepare AZ31B magnesium alloy, 1060 aluminum alloy and pure tantalum plate, the thickness of magnesium alloy plate is 1±0.2mm, the thickness of 1060 aluminum alloy is 0.1±0.03mm, and the thickness of pure tantalum plate is 1±0.2mm, among which The chemical composition of the AZ31B material and the pure aluminum intermediate layer should comply with the provisions of the national standards GB / T5153-2016 and GB / T3190-2020. The chemical composition of pure tantalum is shown in Table 1, and the dimensions of each material are shown in Table 2 below ;

[0046] Table 1 Composition of pure tantalum

[0047] element C H O Nb Fe W Mo Si Ta (wt%) 0.010 0.015 0.015 0.050 0.005 0.010 0.010 0.005 Bal.

[0048] Table 2 Size chart of magnesium...

Embodiment 2

[0066] The room temperature rolling method of the lightweight and high-strength Mg-Ta / Al composite metal plate described in this embodiment comprises the following steps:

[0067] (1) Prepare AZ31B magnesium alloy, 1060 aluminum alloy and pure tantalum plate, the performance of each plate is the same as embodiment 1; the above-mentioned magnesium alloy plate is carried out annealing pretreatment, promptly in the vacuum tube type high-temperature furnace, at 230 ℃ constant temperature insulation 2 Hours, then air-cooled for later use;

[0068] Grind the surface of the above-mentioned AZ31 magnesium alloy (after annealing), pure aluminum plate, and pure tantalum plate with an angle grinder to remove the oxide film on the surface of the material. The surface of the magnesium alloy is polished for about 0.5 minutes, and the surface of the pure tantalum plate is polished for about 1 minute; then, Wipe the surface of the polished material with absolute ethanol to remove the oil stai...

Embodiment 3

[0073] The room temperature rolling method of the lightweight and high-strength Mg-Ta / Al composite metal sheet described in this embodiment includes the following steps:

[0074] (1) prepare AZ31B magnesium alloy, 1060 aluminum alloy and pure tantalum plate, the performance of each plate is the same as embodiment 1; The above-mentioned magnesium alloy plate is carried out annealing pretreatment, promptly in the vacuum tube type high-temperature furnace, under 250 ℃ constant temperature insulation 1.8 Hours, then air-cooled for later use;

[0075] Grind the surface of the above-mentioned AZ31 magnesium alloy (after annealing), pure aluminum plate, and pure tantalum plate with an angle grinder to remove the oxide film on the surface of the material. The surface of the magnesium alloy is polished for about 0.5 minutes, and the surface of the pure tantalum plate is polished for about 1 minute; then , wipe the surface of the polished material with absolute ethanol to remove the oil...

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Abstract

The invention belongs to the technical field of metal material processing, in particular to a light-weight and high-strength Mg-Ta composite metal plate, and further discloses a preparation method thereof by rolling at room temperature. The light and high-strength Mg-Ta composite metal plate of the present invention is made by adding a light metal rolling pure aluminum intermediate layer between the magnesium alloy plate and the tantalum metal plate, and supplemented by low-temperature annealing treatment between rolling passes and High-temperature diffusion connection treatment enables the formation of a high-strength interface with both mechanical connection and metallurgical bonding between dissimilar metals of magnesium and tantalum, successfully preparing a lightweight, high-strength magnesium-tantalum composite metal sheet, which is a lightweight structural material and heavy metal The room temperature forming between materials provides a new idea, and at the same time has positive significance for the improvement of the technical level of deep space exploration spacecraft structure.

Description

technical field [0001] The invention belongs to the technical field of metal material processing, and in particular relates to a light-weight and high-strength Mg-Ta composite metal plate, and further discloses a room-temperature rolling forming method thereof. Background technique [0002] With the development of my country's aerospace technology, from a traditional aerospace power to an aerospace power, deep space exploration is one of the important supports to realize my country's aerospace transformation. Deep space exploration is to launch manned / unmanned spacecraft from the earth into space to conduct scientific investigation and space utilization on distant extraterrestrial bodies. For this reason, based on the current technical level of my country's current carrying and deep space spacecraft, it is impossible to successfully deliver some multifunctional loads to the predetermined orbit. Therefore, it is necessary to reduce the weight of the spacecraft structure to a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/01B32B15/20B32B15/00B32B38/00B32B38/16C21D9/00C22F1/02C22F1/04C22F1/06C22F1/18
CPCB32B15/017B32B38/0036B32B38/0012B32B38/162C22F1/02C22F1/04C22F1/06C22F1/18C21D9/0081B32B2038/0048B32B2250/40B32B2307/718
Inventor 韩修柱罗文博薛志勇孔钦可许焕宾
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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