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Method for manufacturing bearing sleeve with high wear resistance and corrosion resistance

A production method and technology of bearing sleeves, which are applied in the directions of bearing components, shafts and bearings, coatings, etc., can solve the problems of increasing bearing temperature, easy bearing damage, etc., and achieve the effect of improving strength, good effect and simple production.

Inactive Publication Date: 2020-06-12
HUNAN INSTITUTE OF ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, during the working and rotating process of sliding bearings, the heat generated by friction will increase the temperature of the bearings. In high temperature environments, the bearings are more likely to be damaged.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for processing a shaft sleeve, comprising the steps of:

[0016] S1: Manufacturing the bearing sleeve body A, the actual manufacturing size of the bearing sleeve body A is about 1 mm smaller than the design size;

[0017] S2: Take the raw materials of anti-corrosion ceramic coating coating according to the following mass ratio:

[0018] SiO 2 : 5%; MgO: 7%; Al 2 o 3 : 33%; Cr 2 o 3 : 30%; ZrO 2 : 15%, put the above raw materials together and stir for 6 minutes to prepare anti-corrosion ceramic coating paint X.

[0019] S3: Heat the finished bearing sleeve body A to about 180°C, spray the anti-corrosion ceramic coating X prepared in S2 on the outer surface of the bearing body A by flame spraying method, and the thickness of the sprayed layer is about 0.4mm;

[0020] S4: Place the sprayed bearing sleeve body A to room temperature, and test the strength of the external anti-corrosion coating.

Embodiment 2

[0022] A method for processing a shaft sleeve, comprising the steps of:

[0023] S1: Make the bearing sleeve body B, the actual production size of the bearing sleeve body B is about 0.2 mm smaller than the design size;

[0024] S2: Take the raw materials of anti-corrosion ceramic coating coating according to the following mass ratio:

[0025] SiO 2 : 6%; MgO: 5%; Al 2 o 3 : 40%; Cr 2 o 3 : 22%; ZrO 2 : 12%, put the above raw materials together and stir for 6 minutes to prepare the anti-corrosion ceramic coating paint Y.

[0026] S3: Heat the finished bearing sleeve body B to about 180°C, spray the anti-corrosion ceramic coating X prepared in S2 on the outer surface of the bearing body B by flame spraying, and the thickness of the sprayed layer is about 0.45mm;

[0027] S4: Put the sprayed bearing sleeve body B at room temperature, and test the strength of the external anti-corrosion coating.

Embodiment 3

[0029] A method for processing a shaft sleeve, comprising the steps of:

[0030] S1: Make the bearing sleeve body B, the actual production size of the bearing sleeve body B is about 0.2 mm smaller than the design size;

[0031] S2: Take the raw materials of anti-corrosion ceramic coating according to the following mass ratio:

[0032] SiO 2 : 10%; MgO: 8%; Al 2 o 3 : 42%; Cr 2 o 3 : 34%; ZrO 2 : 15%, put the above raw materials together and stir for 6 minutes to prepare anti-corrosion ceramic coating paint Z.

[0033] S3: Heat the finished bearing sleeve body C to about 180°C, spray the anti-corrosion ceramic coating Z prepared in S2 on the outer surface of the bearing body C by flame spraying, and the thickness of the sprayed layer is about 0.35mm;

[0034] S4: Place the sprayed bearing sleeve body C to room temperature, and test the strength of the external anti-corrosion coating.

[0035] The bearing sleeve bodies A, B, and C prepared in the above-mentioned embodime...

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Abstract

The invention discloses a method for manufacturing a bearing sleeve with high wear resistance and corrosion resistance. The method comprises the following steps: manufacturing a bearing sleeve body and an anticorrosive ceramic coating; heating the bearing sleeve body to 180 DEG C, and spraying the anticorrosive ceramic coating on the outer surface of the bearing sleeve body; and cooling the coatedbearing sleeve body to normal temperature. The method for manufacturing the bearing sleeve with high wear resistance and corrosion resistance has the advantages that the manufacturing cost is low, manufacturing is easy, the corrosion resistance is good, and wear resistance is good.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to a method for manufacturing a highly wear-resistant and corrosion-resistant bearing sleeve. Background technique [0002] Bearings need to be installed on many mechanical parts to achieve mechanical movement, and sliding bearings are widely used due to their small friction coefficient and small starting resistance, and are more convenient for their selection, lubrication and maintenance. Since sliding bearings have no balls, they rely entirely on friction To achieve movement, in the process of friction, the bearing sleeve becomes a vulnerable part. Since the sliding bearing sometimes needs to work in some water or corrosive media, a certain corrosion resistance is required to improve the service life of the bearing. In addition, during the working and rotating process of the sliding bearing, the heat generated by friction will increase the temperature of the bearing. In a h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/11C23C4/129F16C33/04C04B35/10
CPCC23C4/11C23C4/129F16C33/043C04B35/10C04B2235/3418C04B2235/3206C04B2235/3244C04B2235/3241
Inventor 刘伟成林方宽
Owner HUNAN INSTITUTE OF ENGINEERING
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