Copper-based self-lubricating composite material which can be used at room temperature to 500 DEG C, and preparation method and application thereof

A composite material and self-lubricating technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of insufficient material strength and lubricity, achieve high strength, improve wear-resistant lubrication performance, and enhance matrix strength.

Active Publication Date: 2020-06-19
LANZHOU UNIV OF ARTS & SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the metal-based self-lubricating composite materials disclosed in the prior art are not sure whether they are suitable for use under high temperature conditions, and the strength and lubricity of the prepared materials are not enough to meet the current needs

Method used

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  • Copper-based self-lubricating composite material which can be used at room temperature to 500 DEG C, and preparation method and application thereof
  • Copper-based self-lubricating composite material which can be used at room temperature to 500 DEG C, and preparation method and application thereof

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Embodiment 1

[0034] The copper-based self-lubricating composite material of the present embodiment consists of the following components in weight percentage: Ni 9%, Sn 5%, Si 0.1%, Al 0.1%, Graphene 0.8%, LaF 3 0.08%, the balance is Cu. Among them, Cu, Sn, Ni, and Al are all electrolytic powders, Cu, Sn, Ni, Al, Si, graphene and LaF 3 The purity is greater than 99.5%, the particle size of Cu, Sn, Ni, Al, Si is less than 0.06mm, graphene and LaF3 The particle size is less than 0.035mm.

Embodiment 2

[0036] The copper-based self-lubricating composite material of the present embodiment consists of the following components in weight percentage: Ni 12%, Sn 5%, Si 0.3%, Al 0.5%, graphene 1.5%, LaF 3 0.5%, the balance is Cu. Among them, Cu, Sn, Ni, and Al are all electrolytic powders, Cu, Sn, Ni, Al, Si, graphene and LaF 3 The purity is greater than 99.5%, the particle size of Cu, Sn, Ni, Al, Si is less than 0.06mm, graphene and LaF 3 The particle size is less than 0.035mm.

Embodiment 3

[0038] The copper-based self-lubricating composite material of the present embodiment is composed of the following components in weight percentage: Ni 4%, Sn6%, Si 0.5%, Al 0.05%, graphene 2%, LaF 3 0.05%, the balance is Cu. Among them, Cu, Sn, Ni and Al are reduced powders, Cu, Sn, Ni, Al, Si, graphene and LaF 3 The purity is greater than 99.5%, the particle size of Cu, Sn, Ni, Al, Si is less than 0.06mm, graphene and LaF 3 The particle size is less than 0.035mm.

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Abstract

The invention particularly relates to a copper-based self-lubricating composite material which can be used at room temperature to 500 DEG C, and a preparation method and application thereof, and belongs to the technical field of preparation of copper-based self-lubricating composite materials. The copper-based self-lubricating composite material comprises the following components in percentage byweight: Ni 4-15%, Sn 4-6%, Si 0.05-0.5%, Al 0.03-0.5%, graphene 0.5-3%, LaF3 0.05-0.5%, and the balance Cu. The copper-based self-lubricating composite material provided by the invention has excellenthigh strength, low friction, wear resistance and good self-lubricating property under the conditions of normal temperature and high temperature, and can be applied to the fields of sliding bearings,pantographs, rolling bearing holders or the like.

Description

technical field [0001] The invention relates to a copper-based self-lubricating composite material that can be used at room temperature to 500°C, a preparation method and application thereof, and belongs to the technical field of copper-based self-lubricating composite material preparation. Background technique [0002] Metal-based self-lubricating composite materials can be used in aero-engine valve bearings and high specific pressure bearings, floating or semi-floating bearings for equipment, bearings for weapon adjustment devices, etc., but conventional metal-based self-lubricating composite materials. Parts such as skateboards will have problems such as easy wear, short life, low reliability, and poor lubricity. [0003] In the process of developing metal-based self-lubricating composite materials, adding one or more composite solid lubricants such as graphite, dichalcogen compounds, oxides, fluorides, and salts to metals and their alloys can improve the metal and its al...

Claims

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Application Information

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IPC IPC(8): C22C9/06C22C9/02C22C1/05C22C1/10B22F9/04B22F3/02B22F1/00C22F1/08C22F1/02
CPCC22C9/06C22C9/02C22C1/051B22F9/04B22F3/02C22F1/08C22F1/02B22F2009/043B22F1/052
Inventor 李珍杜三明王小超贺智涛刘琦
Owner LANZHOU UNIV OF ARTS & SCI
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