Shaft sleeve material and preparation method

Abstract

The invention discloses a shaft sleeve material and a preparation method. A shaft sleeve is manufactured through the following process steps of raw material preparation, pretreatment, powder mixing, preliminary molding, high-temperature sinter molding, heat treatment and the like. The shaft sleeve material is prepared from, by mass, 1-2% of silicon dioxide, 0.5-1.2% of manganese dioxide, 0.5-1.6% of molybdenum disulfide, 0.5-2% of lanthanum oxide, 0.2-0.9% of nickel oxide, 0.5-1.2% of cobalt carbide, 1-2% of silicon carbide, 0.3-1% of graphite, 0.2-0.8% of wax micro-powder, 0.2-0.8% of chromium, 1.5-3% of tin, 2-10% of copper, 0.1-0.5% of phosphorus, 0.1-0.5% of zirconium and the balance iron and inevitable impurities. The produced shaft sleeve material has high wear resistance and hardness as well as high strength and impact resistance.

Description

technical field [0001] The invention relates to the field of powder metallurgy, in particular to a shaft sleeve material and a preparation method. Background technique [0002] Powder metallurgy is a process technology that uses metal powder as raw material, after forming and sintering, to manufacture metal materials, composite materials and various types of products. It is widely used in agricultural machinery, automobiles, machine tools, instruments, textiles, light industry and other fields. The melting temperature of melting point metals is quite high, and traditional casting is difficult. However, the powder metallurgy method can significantly reduce its sintering activation energy (such as tungsten, zirconium, chromium, molybdenum, etc.), so that it can be sintered at a lower temperature. With the development of the times and the continuous improvement of product comprehensive performance and economy, performance needs to be improved day by day, and products with incre...

AI Technical Summary

Problems solved by technology

[0002] Powder metallurgy is a process technology that uses metal powder as raw material, after forming and sintering, to manufacture metal materials, composite materials and various types of products. It is widely used in agricultural machinery, automobiles, machine tools, instruments, textiles, light industry and other fields. The melting temperature of melting point metals is quite high, and traditional casting is difficult. However, the powder metallurgy method can significantly reduce its sintering activation energy (such as tungsten, zirconium, chromium, molybdenum, etc.), so that it can be sintered at a lower temperature. With the development of the times and the continuous improvement of product comprehensive performance and economy, performance needs to be improved day by day, and products with increasingly complex shapes are far from meeting people's needs, so they have strong wear resistance and hardness, and also have high Multi-element alloy products with characteristics such as strength and impact resistance are more and more popular. In addition, because powder metallurgy uses powder sintering, the material itself has a certain pore size, so it has natural advantages in preparing porous materials. Due to powder metallurgy technology It has become the key to solve the problems of new materials and plays a pivotal role in the development of new materials