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Powder metallurgy wear-resistant corrosion-resistant bearing material and preparation method thereof

A bearing material and powder metallurgy technology, applied in the field of powder metallurgy, can solve the problems of poor heat resistance, low hardness, bearing corrosion, etc., and achieve the effects of strong corrosion resistance, excellent tensile strength performance, and high hardness

Active Publication Date: 2014-01-29
GUANGXI SHENGLONG METALLURGICAL CO LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional bearings are mostly made of steel, but the hardness of steel is lower than that of ceramics. Bearings made of steel are not wear-resistant and have poor heat resistance. When the bearing is in a high temperature environment for a long time, the bearing made of steel is prone to expansion Deformation, leading to bearing corrosion and shortening of service life

Method used

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Embodiment Construction

[0016] The present invention will be described in detail below through specific examples.

[0017] A powder metallurgy wear-resistant and corrosion-resistant bearing material, made of the following raw materials in parts by weight (kg): vanadium carbide 0.4, chromium carbide 0.2, graphite 0.5, molybdenum powder 2.0, nickel powder 9.4, silicon carbide 0.15, tantalum carbide 0.2, Polyethylene wax powder 2, iron powder 93, additive 1;

[0018] The additive is made of the following raw materials in parts by weight (kg): iron powder 3, kaolin 2, nano-carbon 2, zirconium fluoride 1, alum 2, sodium alginate 3, sodium tripolyphosphate 1, corundum powder 3, Copper sulfate 1, calcium stearate 1, vinyl triethoxysilane 3; the preparation method is to mix iron powder, kaolin, zirconium fluoride, alum, sodium alginate, sodium tripolyphosphate, corundum powder, copper sulfate, Grind it into 200-300 mesh powder, then add vinyltriethoxysilane and mix evenly, press it into a billet at 10-15Mpa...

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Abstract

The invention discloses a powder metallurgy wear-resistant corrosion-resistant bearing material. The invention is characterized in that the material is prepared from the following raw materials in parts by weight: 0.4-0.6 part of vanadium carbide, 0.2-0.3 part of chromium carbide, 0.5-0.8 part of graphite, 2.0-3.2 parts of molybdenum powder, 9.4-9.6 parts of nickel powder, 0.15-0.25 part of silicon carbide, 0.2-0.3 part of tantalum carbide, 2-3 parts of polyethylene wax powder, 93-94 parts of iron powder and 1-2 parts of assistant. The corrosion-resistant high-temperature-resistant bearing material prepared from the titanium carbide, vanadium carbide, chromium carbide, nickel, molybdenum and graphite has the characteristics of high hardness, low deformation tendency, high wear resistance, high temperature resistance, corrosion resistance and the like, has favorable structural rigidity, hardness, fatigue resistance and tensile strength, and is suitable for a high-temperature wearing environment.

Description

technical field [0001] The invention relates to the field of powder metallurgy, in particular to a powder metallurgy wear-resistant and corrosion-resistant bearing material and a preparation method thereof. Background technique [0002] The bearing is a component that fixes and reduces the friction coefficient of the load during the mechanical transmission process. Its main function is to support the mechanical rotating body to reduce the mechanical load friction coefficient of the equipment during the transmission process. According to the different friction properties of moving elements, bearings can be divided into two types: rolling bearings and sliding bearings. Traditional bearings are mostly made of steel, but the hardness of steel is lower than that of ceramics. Bearings made of steel are not wear-resistant and have poor heat resistance. When the bearing is in a high temperature environment for a long time, the bearing made of steel is prone to expansion Deformation...

Claims

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Application Information

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IPC IPC(8): C22C38/48B22F1/00B22F3/16
Inventor 黄浩
Owner GUANGXI SHENGLONG METALLURGICAL CO LTD
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