Powder metallurgy abrasion-resistant corrosion-resistant bearing material and preparing method thereof

Abstract

The invention discloses a powder metallurgy abrasion-resistant corrosion-resistant bearing material. The powder metallurgy abrasion-resistant corrosion-resistant bearing material is characterized in that the powder metallurgy abrasion-resistant corrosion-resistant bearing material is made of the following raw materials of, 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 additives. The corrosion-resistant high-temperature-resistant bearing material is made by adding titanium carbide, vanadium carbide, chromium carbide,nickel, molybdenum and graphite, and has the characteristics of being high in hardness, not prone to deforming, high in corrosion resistance, resistant to high temperature, resistant to corrosion andthe like, the structural stiffness, hardness, fatigue resistance and tensile strength performance are excellent, and the powder metallurgy abrasion-resistant corrosion-resistant bearing material is suitable for the high-temperature abrasion 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...

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