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Easily-molded environment-friendly beryllium bronze-steel bimetallic bearing material and manufacturing method thereof

A bearing material, beryllium bronze technology, applied in the field of beryllium bronze-steel bimetal bearing material and its manufacturing, can solve the problem of inability to improve bending performance, and achieve the effects of good bending performance, reduced production cost, and high bearing capacity

Active Publication Date: 2013-01-02
江苏联其材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above production process is to improve the mechanical properties of the copper alloy, but it cannot improve its bending properties

Method used

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  • Easily-molded environment-friendly beryllium bronze-steel bimetallic bearing material and manufacturing method thereof
  • Easily-molded environment-friendly beryllium bronze-steel bimetallic bearing material and manufacturing method thereof
  • Easily-molded environment-friendly beryllium bronze-steel bimetallic bearing material and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] refer to figure 1 As shown, the easy-to-form environmental protection beryllium bronze-steel bimetallic bearing material of the present invention is made up of steel plate layer 1 and alloy layer 2, and described steel plate layer 1 and alloy layer 2 are upper and lower two layers, and described steel plate layer 1 is made of base layer The steel plate 10 is composed of a copper plated layer 11 on the surface of the steel plate 10, the material of the steel plate 10 is low-carbon high-quality carbon steel with a carbon content of less than 0.2%, and the thickness of the copper plated layer 11 is 0.30 to 1.00 mm. The material of the alloy layer 2 is a beryllium bronze alloy formed by sintering beryllium bronze alloy powder, and the chemical composition of the beryllium bronze alloy powder is calculated by weight percentage: 2% to 5% beryllium, 5% to 7% tin, and 7% to 8% zinc , the balance is copper, and the particle size of the beryllium bronze alloy powder is less than ...

Embodiment 2

[0037] refer to figure 2 As shown, the easy-to-form environment-friendly beryllium bronze-steel bimetal bearing material of the present invention is composed of a steel plate layer 1 and an alloy layer 2, and the steel plate layer 1 and the alloy layer 2 are two layers inside and outside, wherein the steel plate layer 1 is located at The inner layer, the alloy layer 2 is located in the outer layer, the steel plate layer 1 is composed of the steel plate 10 of the base layer and the copper plated layer 11 on the surface of the steel plate 10, and the material of the steel plate 10 is low-carbon high-quality carbon steel with a carbon content of less than 0.2%. , the thickness of the copper plating layer 11 is 0.30 ~ 1.00mm, the material of the alloy layer 2 is beryllium bronze alloy sintered beryllium bronze alloy powder, the chemical composition of the beryllium bronze alloy powder is calculated as: 2-5% of beryllium, 5-7% of tin, 7-8% of zinc, and the balance of copper, the p...

Embodiment 3

[0040] The production material specifications are: total thickness 2.5×alloy layer width 120mm, easy-to-form environmental protection beryllium bronze-steel bimetallic bearing material plate with alloy layer thickness 0.5mm.

[0041] refer to image 3 shown, including the following steps:

[0042] Step 1, material preparation, including the following two steps:

[0043] A, the preparation of beryllium bronze alloy powder;

[0044] According to the percentage by weight, it is 2% beryllium, 5% tin, 7% zinc and the balance is copper for accurate weighing and proportioning. After mixing and melting, it adopts a fully enclosed high-pressure water atomization method to make beryllium bronze alloy powder, and then sieves to obtain granules. Beryllium bronze alloy powder with diameter less than 0.1mm;

[0045] B, the preparation of steel plate;

[0046] Cut the low-carbon high-quality carbon steel plate with a carbon content of less than 0.2% into 2.5×126×625mm (thickness×width×leng...

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Abstract

The invention provides an easily-molded environment-friendly beryllium bronze-steel bimetallic bearing material which is suitable for manufacturing bearing shells, bushes, flanges and the like in large-power high-rotating speed automobile engines, and is sintered by a steel plate layer and an alloy layer; the steel plate layer and the alloy layer are an upper layer and a lower layer, or an inner layer and an outer layer; the steel plate layer comprises a steel plate at a base layer and a copper-plated layer on the steel plate surface; the steel plate material is low-carbon high-quality carbon steel with a carbon content of less than 0.2%; the thickness of the copper-plated layer is 0.30-1.00 mm; the alloy layer material is beryllium bronze alloy powder; the beryllium bronze alloy powder comprises the following chemical components by weight: 2-5% of beryllium, 5-7% of tin, 7-8% of zinc, and the balance of copper; and the particle size of the beryllium bronze alloy powder is less than 0.1 mm. The invention also provides the manufacturing method of the easily-molded environment-friendly beryllium bronze-steel bimetallic bearing material.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to a beryllium bronze-steel bimetal bearing material which is easily flanged and environmentally friendly and is sintered on the surface of a low-carbon high-quality carbon steel material, and a manufacturing method thereof, which is suitable for manufacturing high-power , Bearing bushes, bushings, flanged tiles, etc. in high-speed automobile engines. Background technique [0002] Copper alloy metal materials have high bearing capacity and fatigue resistance, and are widely used in high-speed and high-power engines. However, due to technical defects and poor bendability, common copper alloy metal materials on the market can only be It meets the technical requirements of ordinary stamping and stretching, but fails to meet the requirements of physical flanging. When manufacturing bearing bushes, bushings, and flanging tiles in high-power, high-speed automobile engines, ordinary copper a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B32B15/18B32B15/20B21C37/02B22F9/08B22F7/08C21D9/00C21D1/26
Inventor 郑应增
Owner 江苏联其材料科技有限公司
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