High-temperature self-lubricating material for manufacturing bearings and preparation method thereof

A high-temperature self-lubricating, bearing technology, applied in the field of powder metallurgy, can solve the problems of high consumption of precious non-ferrous metals, serious bearing wear, high energy consumption, etc., to achieve good practicability and economy, high bearing capacity, and low friction coefficient. Effect

Inactive Publication Date: 2013-02-13
镇江中孚复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The disadvantages of traditional bearings such as serious wear, high energy consumption, sho

Method used

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  • High-temperature self-lubricating material for manufacturing bearings and preparation method thereof
  • High-temperature self-lubricating material for manufacturing bearings and preparation method thereof
  • High-temperature self-lubricating material for manufacturing bearings and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of a high-temperature self-lubricating composite material, the preparation steps are as follows:

[0024] (1) Take 0.3% mica by weight, 5% barium fluoride (Sinopharm Chemical Reagent Co., Ltd., content ≥ 99.0%), 3% graphite (Sinopharm Chemical Reagent Co., Ltd., content ≥ 99.85%), granular degree (≤30um)≥95.0%), 1% molybdenum disulfide (Sinopharm Chemical Reagent Co., Ltd., content ≥98%), 13% copper (300 mesh), 43% alloy powder (10-20%Cr , 8-12%W, 30-40%Ni and the rest of Fe) and 34.7% iron powder, fully mixed on the V-type mixer for 8-10h;

[0025] (2) Add the mixture to the mixture of water and sodium stearate (sodium stearate: ingredients = 3:100, mass ratio; sodium stearate: water = 1:4, mass ratio) and stir evenly. Put the mixed ingredients into the oven and bake for 8-10 hours;

[0026] (3) Then take it out and put it into the mold, control the pressure to 400bar, hold the pressure for 20-30s and press to form;

[0027] (4) Then put the com...

Embodiment 2

[0030] Method is the same as Example 1, except that 1% barium fluoride, 38.7% iron powder.

Embodiment 3

[0032] Method is the same as Example 1, except that 3% barium fluoride, 36.7% iron powder.

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PUM

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Abstract

The invention discloses a high-temperature self-lubricating material for manufacturing bearings and a preparation method thereof. The high-temperature self-lubricating material comprises, by weight, 1%-5% of barium fluoride, 1%-10% of graphite, 1%-10% of molybdenum disulfide, 10%-20% of copper, 40%-50% of alloy powder and 40%-55% of iron powder. The preparation method includes: (1) alloy raw materials are mixed fully on a V-shaped mixing machine; (2) mixed liquid of water and sodium stearate is added and mixed evenly; (3) drying is performed; (4) the mixture is shaped by pressing of a mould; and (5) sintering is performed. The high-temperature self-lubricating material has the advantages of being low in friction coefficient, strong in agglutination and abrasion resistance, high in bearing capacity, low in energy consumption, small in heating, stable in operation and the like. The novel high-temperature self-lubricating material is used for manufacturing the bearings, cost is reduced, bearing capacity is improved, service life is prolonged, and comprehensive performance is improved remarkably.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy, in particular to a high-temperature self-lubricating material used for manufacturing bearings and a preparation method thereof. Background technique [0002] The disadvantages of traditional bearings, such as serious wear, high energy consumption, short life, and high consumption of precious non-ferrous metals, severely limit its superiority. Contents of the invention [0003] Purpose of the invention: Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a high-temperature self-lubricating material for manufacturing bearings, which overcomes the deficiencies of traditional bearings, makes it have good comprehensive performance, high efficiency, and reduces the cost of materials. The coefficient of friction can improve the overall performance of the material, reduce the production cost of the material, and prolong the service life of the mater...

Claims

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Application Information

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IPC IPC(8): C22C38/16C22C30/02C22C32/00C22C38/44C22C33/02C22C1/05
Inventor 李长生唐华刘金银子范有志钱周
Owner 镇江中孚复合材料有限公司
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