A method for preparing layered metal composites by multilayer-cumulative stack rolling

A composite material and layered metal technology, applied in metal rolling, metal rolling, metal processing equipment, etc., can solve the problems of slow thinning efficiency of layer thickness, instability of layer structure, etc., and achieve the suppression of microcracks, etc. Accumulation of defects, promotion success rate, effect of ply refinement efficiency improvement

Active Publication Date: 2022-05-10
西北工业大学太仓长三角研究院 +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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,

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for preparing layered metal composites by multilayer-cumulative stack rolling
  • A method for preparing layered metal composites by multilayer-cumulative stack rolling
  • A method for preparing layered metal composites by multilayer-cumulative stack rolling

Examples

Experimental program
Comparison scheme
Effect test

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 by surface sandpaper 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 stac...

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a method for preparing a layered metal composite material by multi-layer-accumulative stacking rolling, which combines the reduction amount of a single pass in the rolling process with the number of equal parts of the plate after stacking, so as to ensure that the material interface On the premise of a good combination, the total thickness of the laminated sheet is controlled. Multi-layer-cumulative stack rolling flexibly controls the total thickness of the plate by controlling the reduction during rolling and the number of equal parts of the plate after stack rolling. In addition, the substantial increase in ply refinement efficiency means that the number of passes required to obtain the same ply thickness is greatly reduced, thereby effectively inhibiting the accumulation of defects such as micro-cracks during the rolling process, and further improving the success rate of lamination . The present invention provides a simple and effective method for improving the typical cumulative rolling process, that is, multilayer-cumulative rolling technology. This method can effectively suppress the occurrence of ply instability in the process of composite material stacking and rolling, and can greatly improve the efficiency of ply thickness refinement, and can produce large-sized parts, which is easy to realize industrial production.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap