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A steel-wear-resistant copper alloy layered bearing material, its preparation device and preparation method

A wear-resistant copper and alloy layer technology, applied in the field of alloy material preparation, to achieve the effects of excellent wear resistance, good use effect and low input cost

Active Publication Date: 2019-05-24
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to propose a method for preparing a steel-wear-resistant copper alloy layered bearing material in view of the problems of casting defects and Pb element segregation in the existing bearing material preparation method, which can precisely control the steel-wear-resistant copper alloy The content of Pb element in the alloy layered bearing material can reduce the segregation of Pb element

Method used

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  • A steel-wear-resistant copper alloy layered bearing material, its preparation device and preparation method
  • A steel-wear-resistant copper alloy layered bearing material, its preparation device and preparation method
  • A steel-wear-resistant copper alloy layered bearing material, its preparation device and preparation method

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Embodiment 1

[0038] This embodiment discloses a preparation device for a steel-wear-resistant copper alloy layered bearing material, the structure of which is as follows figure 2 As shown, it includes: substrate transmission channel, high-frequency induction heater coil 1, laser generator 8, pulsed magnetic field generator coil 7 and high-frequency induction normalizing coil 5, and the substrate transmission channel is sequentially arranged on the high-frequency induction heater In the coil and the pulsed magnetic field generator coil, a pulsed magnetic field generator coil is arranged above the substrate transmission channel between the high frequency induction heater coil and the pulsed magnetic field generator coil, and a laser generator is arranged above the pulsed magnetic field generator coil , the laser beam of the laser generator hits the substrate transmission channel below the pulsed magnetic field generator coil, and the wear-resistant copper alloy powder is arranged on the subs...

Embodiment 2

[0050] This embodiment discloses a method for preparing a steel-wear-resistant copper alloy layered bearing material, using the preparation device for the steel-wear-resistant copper alloy layered bearing material described in Example 1.

[0051] The preparation method of the carbon alloy steel-wear-resistant copper alloy layered bearing material comprises the following steps:

[0052] 1) A carbon alloy steel plate with a thickness of 3 mm and a width of 100 mm is used as the carbon alloy steel substrate, and NaOH and HCl are used to clean the oxide and oil stains on the surface of the carbon alloy steel substrate.

[0053] 2) A wear-resistant copper alloy melt with uniform composition is smelted by electromagnetic stirring. The composition is 24wt.% Pb and 2wt.% Sn, and the rest is Cu. When the melt temperature reaches 1200 ° C, blow high-purity argon into it Atomized into powder to prepare wear-resistant copper alloy powder 3.

[0054] 3) Cover the 1.5mm thick wear-resistan...

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Abstract

The invention provides a steel-abrasion resisting copper alloy laminar bearing bush material and a preparing device and method thereof. The preparing method of the steel-abrasion resisting copper alloy laminar bearing bush material comprises the following steps that abrasion resisting copper alloy powder is prepared; a steel substrate material is cleaned, and oil dirt and oxide are removed; a steel substrate subjected to high-frequency induction heating is covered with the abrasion resisting copper alloy powder with a certain thickness; the abrasion resisting copper alloy powder and the steel substrate with a certain thickness are heated and melted through a laser under the protection atmosphere, meanwhile, a pulse electromagnetic field is applied above an abrasion resisting copper alloy powder and steel substrate molten bath, the abrasion resisting copper alloy powder and the steel substrate are fused together, and metallurgical bonding is achieved; and the inner stress is eliminated in an online high-frequency heating normalizing manner, and the steel-abrasion resisting copper alloy laminar bearing bush material is prepared. The content of the Pb element in the steel-abrasion resisting copper alloy laminar bearing bush material can be accurately controlled, and segregation of the Pb element is reduced.

Description

technical field [0001] The invention relates to alloy material preparation technology, in particular to a steel-wear-resistant copper alloy layered bearing bush material, a preparation device and a preparation method thereof. Background technique [0002] With the rapid development of various motor vehicle engines such as automobiles to high speed, heavy load, and high power, the requirements for bearing pad materials are becoming more and more stringent, and the technical requirements are getting higher and higher. [0003] At present, the widely used bearing material is copper-lead-tin alloy / steel bearing material, and its main preparation methods include static casting method, centrifugal casting method, particle induction centrifugal casting method, powder metallurgy sintering and rolling compounding and other methods. However, they all have their own weaknesses. For example, there are casting defects and Pb element segregation in the static casting method. The centrifug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F7/08B22F3/105B22F3/24
CPCB22F3/105B22F3/24B22F7/08B22F2003/1053B22F2003/248
Inventor 李廷举王同敏接金川张宇博曹志强卢一平康慧君陈宗宁
Owner DALIAN UNIV OF TECH
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