Method for preparing laminated metal composite through multilayer-accumulation ply rolling

A composite material and layered metal technology, applied in metal rolling, metal rolling, metal processing equipment, etc., can solve the problems of layer structure instability, layer thickness thinning efficiency, etc., to achieve the success rate, The effect of suppressing the accumulation of defects such as microcracks and improving the efficiency of ply refinement

Active Publication Date: 2020-06-05
西北工业大学太仓长三角研究院 +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to avoid the deficiencies of the prior art, the present invention proposes a method for preparing layered metal composite materials by multi-layer-accumulative rolling, aiming at lamellar structures that often appear in the process of preparing layered metal composite materials in typical cumulative rolling techniques problems such as instability and slow refinement efficiency of ply thickness,

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  • Method for preparing laminated metal composite through multilayer-accumulation ply rolling
  • Method for preparing laminated metal composite through multilayer-accumulation ply rolling
  • Method for preparing laminated metal composite through multilayer-accumulation ply rolling

Examples

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example 1

[0031] Example 1: Preparation of silver / copper (volume ratio 1:1, reduction 75%) layered metal composite material by multilayer-cumulative stack rolling

[0032] (1) Silver flakes with a purity of 99.99% and copper flakes with a purity of 99.95% are used. Cut the silver sheet and copper sheet into sizes of 30mm (width)×30mm (length)×0.5mm (thickness) and 30mm (width)×30mm (length)×1mm (thickness);

[0033] (2) carrying out the annealing treatment at 400° C. for 2 h with the above-mentioned cut silver and copper flakes;

[0034] (3) The silver and copper sheets after the annealing are polished and cleaned with alcohol to remove the oil stain on the surface of the metal sheet;

[0035] (4) Stacking in the order of copper / silver / copper, before stacking, polish the contact surfaces between the thin plates with a steel brush to remove the oxide layer on the metal surface to promote the bonding between the interfaces;

[0036] (5) Roll the above-mentioned stacked materials, and th...

example 2

[0040] Example 2: Preparation of silver / copper (volume ratio 2:1, reduction 75%) layered metal composite material by multilayer-cumulative stack rolling

[0041] (1) Silver flakes with a purity of 99.99% and copper flakes with a purity of 99.95% are used. Cut the silver sheet and copper sheet into sizes of 30mm (width) × 30mm (length) × 1mm (thickness) and 30mm (width) × 30mm (length) × 0.25mm (thickness);

[0042] (2) carrying out the annealing treatment at 400° C. for 2 h with the above-mentioned cut silver and copper flakes;

[0043] (3) The silver and copper sheets after the annealing are polished by surface sandpaper and cleaned with alcohol to remove the oil stain on the surface of the metal sheet;

[0044] (4) Stacking in the order of copper / silver / copper, before stacking, polish the contact surfaces between the thin plates with a steel brush to remove the oxide layer on the metal surface to promote the bonding between the interfaces;

[0045] (5) Roll the above-menti...

example 3

[0049] Example 3: Preparation of silver / copper (volume ratio 1:1, reduction 80%) layered metal composite material by multilayer-cumulative stack rolling

[0050] (1) Silver flakes with a purity of 99.99% and copper flakes with a purity of 99.95% are used. Cut the silver sheet and copper sheet into sizes of 30mm (width)×30mm (length)×1mm (thickness) and 30mm (width)×30mm (length)×0.5mm (thickness);

[0051] (2) carrying out the annealing treatment at 400° C. for 2 h with the above-mentioned cut silver and copper flakes;

[0052] (3) The silver and copper sheets after the annealing are polished by surface sandpaper and cleaned with alcohol to remove the oil stain on the surface of the metal sheet;

[0053] (4) Stacking in the order of copper / silver / copper, before stacking, polish the contact surfaces between the thin plates with a steel brush to remove the oxide layer on the metal surface to promote the bonding between the interfaces;

[0054] (5) Roll the above-mentioned stac...

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Abstract

The invention relates to a method for preparing a laminated metal composite through multilayer-accumulation ply rolling. The single-pass rolling reduction in the rolling process and the number of evenly-divided plates obtained after ply rolling are combined, and the total thickness of the ply-rolling plates is controlled on the premise of guaranteeing good binding of material interfaces. By meansof multilayer-accumulation ply rolling, the total thickness of the plates is flexibly controlled by controlling the rolling reduction during rolling and the number of evenly-divided plates obtained after ply rolling. In addition, the lamination refining efficiency is greatly improved, it means that the ply rolling passes needed for obtaining the same lamination thickness are greatly reduced, thenaccumulation of microcracks and other defects in the rolling process is effectively suppressed, and the success rate of ply rolling is further improved. The method for simply and effectively improvingthe typical accumulation ply rolling process, namely, a multilayer-accumulation ply rolling technology, is provided. By means of the method, the situation of lamination instability in the composite ply rolling process can be effectively suppressed, the lamination thickness refining efficiency can be greatly improved, large-size components can be produced, and industrial production can be achievedeasily.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation, and relates to a method for preparing a layered metal composite material by multi-layer cumulative rolling, which can effectively suppress the instability of the layer structure during the preparation process of the composite material and greatly improve the thinning efficiency of the layer thickness . Background technique [0002] Next-generation defense, energy, and electronics industries require metallic materials with high strength and functional properties under conditions such as extreme temperatures, strains, and strain rates. Nanostructured materials are potential candidates due to their high strength. Among them, existing studies have shown that nanostructure layered metal composites not only have excellent mechanical properties, but also often have good thermal stability. However, most of the current research on the preparation of layered metal composites focuse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/38B21B47/02C21D9/00C22F1/08C22F1/14
CPCB21B1/38B21B47/02C21D9/0081C22F1/08C22F1/14B21B2001/386
Inventor 陈豫增董浩单贵斌张文祥刘峰
Owner 西北工业大学太仓长三角研究院
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