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M50-Sn-Ag-Cu microporous flowing channel self-lubricating composite material and preparation method thereof

A technology of microporous flow channels and composite materials, which is applied in the field of M50-Sn-Ag-Cu microporous flow channel self-lubricating composite materials and its preparation, can solve the problem that the application of self-lubricating composite materials cannot be realized and the uniformity of material structure is affected , Reduce the mechanical properties of materials and other issues, achieve the effect of simple and novel preparation methods, strong industrial promotion value, and improve the mechanical properties and friction and wear properties of materials

Active Publication Date: 2019-01-15
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This preparation process has the following two deficiencies: First, there is a large heat gradient distribution during the preparation process, which affects the uniformity of the material structure, and the mechanical mixing of the lubricant and the matrix material will also reduce the lubricity on the basis of improving the lubricating performance. The mechanical properties of the material; the second is that special molds are required for material forming, so that the research on metal-based self-lubricating materials is still at the stage of experimental analysis of small-block materials, and it is impossible to realize the application of self-lubricating composite materials in industrial complex parts

Method used

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  • M50-Sn-Ag-Cu microporous flowing channel self-lubricating composite material and preparation method thereof
  • M50-Sn-Ag-Cu microporous flowing channel self-lubricating composite material and preparation method thereof
  • M50-Sn-Ag-Cu microporous flowing channel self-lubricating composite material and preparation method thereof

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preparation example Construction

[0038] In the following examples, the M50-Sn-Ag-Cu microporous flow channel self-lubricating composite material uses Sn-Ag-Cu spherical powder and M50 spherical powder as raw materials, according to the designed microporous flow channel The structural parameters are prepared by 3D printing. The present invention provides a specific preparation method, but does not limit the preparation method. Sn-Ag-Cu spherical powder, M50 spherical powder, microporous flow channel structure, M50-Sn-Ag prepared by other methods meet the requirements of the present invention The Cu microporous flow channel self-lubricating composite material also belongs to the protection scope of the present invention.

[0039] The present invention provides a preparation method of M50-Sn-Ag-Cu microporous flow channel self-lubricating composite material, which includes the following steps:

[0040] 1) According to the constituent elements and content of M50 steel, weigh the elementary powder of its constituent e...

Embodiment 1

[0046] A M50-Sn-Ag-Cu microporous flow channel self-lubricating composite material, including a matrix material, a lubricating phase, and a microporous flow channel structure. It uses M50 steel as the matrix material and Sn-Ag-Cu alloy as the lubricating phase. The microporous flow channel is formed by the arrangement of the lubricating phase, and the microporous flow channel structure is used as the lubricating structure to realize the lubrication. Wherein, there are several microporous flow channels, and each microporous flow channel adopts a circular arrangement. Each circular microporous flow channel forms a ring shape with an axially extending sine wave, and each peak of the sine wave is The outlet of the microporous flow channel is distributed on the grinding surface of the composite material and the outside. Among them, the base material M50 steel includes the elements C, Mn, Si, Ni, Cr, Cu, Mo, V and Fe, and the mass ratio of the elements C, Mn, Si, Ni, Cr, Cu, Mo, V an...

Embodiment 2

[0057] A M50-Sn-Ag-Cu microporous flow channel self-lubricating composite material, including a matrix material, a lubricating phase, and a microporous flow channel structure. It uses M50 steel as the matrix material and Sn-Ag-Cu alloy as the lubricating phase. The microporous flow channel is formed by the arrangement of the lubricating phase, and the microporous flow channel structure is used as the structure of the lubricating phase to achieve lubrication. Wherein, there are several microporous flow channels, and each microporous flow channel adopts a circular arrangement. Each circular microporous flow channel forms a ring shape with an axially extending sine wave, and each peak of the sine wave is The outlet of the microporous flow channel is distributed on the grinding surface of the composite material and the outside. Among them, the base material M50 steel includes the elements C, Mn, Si, Ni, Cr, Cu, Mo, V and Fe, and the mass ratio of the elements C, Mn, Si, Ni, Cr, Cu,...

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Abstract

The invention relates to an M50-Sn-Ag-Cu microporous flowing channel self-lubricating composite material. The M50-Sn-Ag-Cu microporous flowing channel self-lubricating composite material is characterized in that aerial main shaft bearing material M50 steel is used as a base material; Sn-Ag-Cu is used as lubricating phases, and the lubricating phases are arranged to form a microporous flowing channel; the microporous flowing channel structure enables the lubricating through the lubricating phase. The M50-Sn-Ag-Cu microporous flowing channel self-lubricating composite material is prepared through Sn-Ag-Cu spherical powder and M50 spherical power by 3D printing. The M50-Sn-Ag-Cu microporous flowing channel self-lubricating composite material is low in friction coefficient and abrasion rate; the friction performance of an M50 bearing steel can be effectively improved; in addition, the preparation method is simple and convenient; the technical parameters in the preparation process are easily controlled; the lubricating action can be controlled in some extent; complex mechanical spare parts can be manufactured; and the M50-Sn-Ag-Cu microporous flowing channel self-lubricating composite material is of an important significance in industrialization application of a lubricating material.

Description

Technical field [0001] The invention relates to an M50-Sn-Ag-Cu microporous flow channel self-lubricating composite material and a preparation method thereof, and belongs to the field of solid self-lubricating composite materials. Background technique [0002] M50 high-temperature bearing steel has high high-temperature dimensional stability, high-temperature hardness, high-temperature contact fatigue performance and many other excellent characteristics. It is the main steel used for main shaft bearings of aviation engines in various countries around the world. With the rapid development of the modern aviation industry, there is an urgent need for aero engines with heavy load, high speed and high reliability. The main shaft bearing of an aeroengine is one of the key components of the aeroengine, which is directly related to the performance of the aeroengine. As we all know, friction and wear under high temperature conditions are one of the main factors that reduce the service li...

Claims

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Application Information

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IPC IPC(8): C22C38/04C22C38/02C22C38/42C22C38/44C22C38/46C22C13/00B22F1/00B22F9/08B22F3/105
CPCC22C13/00C22C38/02C22C38/04C22C38/42C22C38/44C22C38/46B22F9/082B33Y10/00B33Y70/00B22F10/00B22F1/065B22F1/105B22F10/25B22F10/34B22F10/36Y02P10/25
Inventor 史晓亮刘锡尧黄玉春邓骁斌闫昭薛冰章桥新
Owner WUHAN UNIV OF TECH
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