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Double-layer metal composite material applied to sliding bearings and preparation method of double-layer metal composite material

A double-layer metal and composite material technology, applied in the direction of bearings, bearing components, shafts and bearings, etc., can solve problems such as wear resistance, unsatisfactory temperature resistance, limited thermal conductivity, large-scale equipment failure, etc., and achieve excellent thermal conductivity , excellent bite resistance, high bonding strength effect

Inactive Publication Date: 2019-02-01
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The double-layer metal composite material combined with low carbon steel and Babbitt alloy through the centrifugal casting process that has been applied has limitations, and its fatigue strength, bonding strength, wear resistance, temperature resistance and thermal conductivity cannot meet more stringent working conditions
The double-layer metal composite materials that have been used to combine low-carbon steel and Babbitt alloy through surfacing welding have limitations, and their bonding strength has been significantly improved, but their wear resistance and temperatur

Method used

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  • Double-layer metal composite material applied to sliding bearings and preparation method of double-layer metal composite material

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Embodiment 1

[0029] This embodiment relates to a kind of bimetallic composite material, such as figure 1 As shown, the bimetallic composite material includes a bearing layer 1 and a friction-reducing alloy layer 2 compounded thereon; the bimetallic composite material bearing layer 1 is made of aluminum bronze, and the mass percentage of the main elements of aluminum bronze is 85% Copper element, 10.0% aluminum element, 3.0% iron element, 1.5% manganese element. The anti-friction alloy layer 2 is made of a medium-high tin-aluminum base alloy, the main elements of which are 78% aluminum, 20% tin and 1.0% copper by mass.

[0030] The preparation method of the double-layer metal composite material applied to the sliding bearing in this embodiment:

[0031] The first step is to prepare and process the aluminum bronze material of the bearing layer, and the surface roughness to be surfacing reaches Ra0.8;

[0032] The second step is to put the processed aluminum bronze material of the bearing l...

Embodiment 2

[0037] This embodiment relates to a kind of bimetallic composite material, such as figure 1 As shown, the bimetallic composite material includes a bearing layer 1 and an antifriction alloy layer 2 compounded thereon; the bimetallic composite material bearing layer 1 is made of tin bronze, and the mass percentage of the main elements of tin bronze is 88.5% Copper element, 10.0% tin element, 1.0% phosphorus element. The anti-friction alloy layer 2 is made of a medium-high tin-aluminum base alloy, the main elements of which are 59% aluminum, 40% tin, and 0.5% copper.

[0038] The preparation method of the double-layer metal composite material applied to the sliding bearing in this embodiment:

[0039] The first step is to prepare and process the aluminum bronze material of the bearing layer, and the surface roughness to be surfacing reaches Ra0.8;

[0040] The second step is to put the processed aluminum bronze material of the bearing layer into the acetone solution, and use ul...

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Abstract

The invention relates to a double-layer metal composite material applied to sliding bearings and a preparation method of the double-layer metal composite material. A bearing layer of the double-layermetal composite material is made from a copper alloy, an anti-friction alloy layer is made from a medium-high-tin aluminum-based alloy, wherein the content of a tin element in the medium-high-tin aluminum-based alloy is 10 wt% -50 wt%, the sum of an aluminum element and the tin element, by mass is larger than or equal to 90%, the aluminum element and the tin element are the main alloy elements, and the medium-high-tin aluminum-based alloy is the multi-element alloy. The preparation method of the double-layer metal composite material comprises the following steps that the copper alloy for the bearing layer is prepared according to requirements for processing; the medium-high-tin aluminum-based alloy is made into welding wires; and the welding wires are welded to the surface of the copper alloy in an overlaying mode to serve as the anti-friction alloy layer, and the double-layer metal composite material applied to the sliding bearings is obtained. According to the double-layer metal composite material applied to the sliding bearings, the very high bonding strength is achieved, the copper alloy has good fatigue strength, thermal conductivity and corrosion resistance, and the medium-high-tin aluminum-based alloy has good fatigue strength, bite resistance and embedding property.

Description

technical field [0001] The invention relates to a double-layer metal composite material applied to sliding bearings and a preparation method thereof, in particular to a double-layer metal composite material applied to sliding bearings, which combines copper alloy and medium-high-tin-aluminum-based alloy through surfacing welding Composite materials and methods for their preparation. Background technique [0002] Sliding bearings are important components of rotor power systems and play an extremely important role in the normal operation of industrial equipment. Especially in the heavy-duty field with more severe working conditions, higher requirements are put forward for the mechanical properties of sliding bearing materials. The double-layer metal composite material combined with low carbon steel and Babbitt alloy through the centrifugal casting process that has been applied has limitations, and its fatigue strength, bonding strength, wear resistance, temperature resistance...

Claims

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Application Information

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IPC IPC(8): F16C33/12F16C33/14C22C9/01C22C21/00
CPCC22C9/01C22C21/003F16C33/121F16C33/122F16C33/14F16C2204/10F16C2204/22F16C2204/30F16C2220/24
Inventor 王新波尹忠慰李虎林高庚员
Owner SHANGHAI JIAO TONG UNIV
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