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A high wear-resistant bearing

A high wear-resistant and bearing technology, applied in the field of high wear-resistant bearings, can solve the problems of large sintering deformation, high sintering cost, affecting the dimensional accuracy of finished products, etc., and achieve the effect of improving wear resistance, good industrial application prospects and low cost.

Active Publication Date: 2016-05-18
成都威士达粉末冶金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of this bearing are ① high cost; ② sintering needs to be sealed and sintered, the sintering cost is high, and the sintering deformation is large, which affects the dimensional accuracy of the finished product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1 High wear-resistant bearing of the present invention

[0016] (1) Take raw materials according to the table:

[0017] serial number

[0018] (2) Preparation: powder mixing-forming-400°C low-temperature pre-sintering-high-temperature sintering-surface polishing-anti-rust treatment-finishing-cleaning-vacuum oil immersion to obtain the high wear-resistant bearing of the present invention.

Embodiment 2

[0019] Embodiment 2 High wear-resistant bearing of the present invention

[0020] (1) Take raw materials according to the table:

[0021] serial number

[0022] (2) Preparation: powder mixing-forming-400°C low-temperature pre-sintering-high-temperature sintering-surface polishing-anti-rust treatment-finishing-cleaning-vacuum oil immersion to obtain the high wear-resistant bearing of the present invention.

Embodiment 3

[0023] Embodiment 3 Bearing performance testing experiment

[0024] Take the bearing prepared in Example 1, and compare the performance with the existing bearing (the formula conforms to GB-T2688-81FZ1460), and the results are shown in Tables 1 and 2.

[0025] It can be seen from the results that the 3800PV life test of the bearing of the present invention is OK, and the wear of the inner hole diameter is ≤0.002mm; the 30,000-week continuous life test is OK, the change of the roundness wear of the bearing inner hole is ≤0.4μ, and the wear of the inner hole diameter is ≤0.003mm. The existing bearing 3800PV life test is OK, the wear of the inner hole diameter is ≤0.006mm; the 30000-week continuous life test is OK, the wear change of the roundness of the bearing inner hole is ≤0.5μ, and the wear of the inner hole diameter is ≤0.008mm. The comparison shows that the wear resistance of the bearing of the present invention is better than that of the existing bearing (GB-T2688-81FZ146...

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PUM

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Abstract

The invention provides a high abrasion-resistant bearing which is prepared from components including, in weight percent, 40-50 parts of copper, 50-60 parts of iron, 0.5-3 parts of molybdenum disulfide, 0.5-2 parts of graphite, 1-4 parts of strengthening elements and 0.1-1 part of stearic acid, wherein the strengthening elements include one or combination of more than two of tin, phosphorus and nickel. The bearing made of the materials can be high in lubricating oil film strength, and oil hole pressure does not easily disappear. The bearing can bear high operating load, and stability of current and rotation speed is ensured for a long time in operation.

Description

technical field [0001] The invention relates to a high wear-resistant bearing. Background technique [0002] Bearings are components that fix and reduce the friction coefficient of loads during mechanical transmission, and are used in a wide range of applications. In order to improve the wear resistance of bearings, researchers have improved their materials. For example, EAB-5 from Hitachi, Japan, its chemical composition is: Cu: 52﹪-60﹪, Sn: 2﹪-6﹪, Zn: 5 ﹪-10%, the rest is iron. It utilizes a higher copper content to increase strength. However, the disadvantages of this bearing are ① high cost; ② sealing sintering is required for sintering, the sintering cost is high, and the sintering deformation is large, which affects the dimensional accuracy of the finished product. Contents of the invention [0003] The purpose of the present invention is to provide a low-cost high wear-resistant bearing. [0004] The invention provides a high wear-resistant bearing, which is pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B22F5/10
Inventor 杨成阳骏
Owner 成都威士达粉末冶金有限公司