A kind of protective layer for bearing surface cold resistance and anticorrosion and preparation method thereof

Abstract

The invention relates to a cold-resistant and corrosion-resistant protecting layer for the surface of a bearing. The cold-resistant and corrosion-resistant protecting layer comprises, by weight, 2-5kgof polyimide particles, 10-16kg of magnesium soap, 1-3kg of cationic surfactant, 2-5kg of chlorinated polyethylene, 10-16kg of polymethyl acrylate latex powder, 3-6kg of anionic surfactant, 2-5kg ofcoalescing agent, 1-3kg of foaming agent, 3-7kg of modified epoxy resin, 1-2kg of chlorosulfonated polyethylene, 2-4kg of acrylic resin, 3-5kg of C, 1-3kg of Mn and 1-3kg of V. The cold-resistant andcorrosion-resistant protecting layer has the advantages that the used polyimide is resistant to high temperature of more than 400 DEG C, cannot have brittle fracture in liquid nitrogen of minus 269 DEG C and can resist extreme low temperature, the polyimide particles, the polymethyl acrylate latex powder and the chlorinated polyethylene are modified by negative ions and positive ions, the modifiedmaterials are applied to the bearing protecting layer to allow the protecting layer to have high-temperature resistance and low-temperature resistance, the protecting layer can resist low temperaturein severely cold and freezing regions and cannot have embrittlement, the outer-surface protecting layer can resist corrosion, and the corrosion resistance of the protecting layer is enhanced greatly.

Description

technical field [0001] The invention relates to the technical field of bearing protective layers, in particular to a cold-resistant and anti-corrosion protective layer for bearing surfaces and a preparation method thereof. Background technique [0002] Bearing is an important part of contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. According to the different friction properties of moving elements, bearings can be divided into rolling bearings There are two types of rolling bearings and sliding bearings. Among them, rolling bearings have been standardized and serialized, but compared with sliding bearings, their radial size, vibration and noise are larger, and their prices are also higher; rolling bearings generally consist of outer rings, inner rings, rolling elements and The cage consists of four parts. According to the shape of the rolling ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, in severe cold and freezing regions, bearings cannot withstand low temperatures and become embrittled, leading to rupture. As an important part of the mechanical rotating body, the machinery cannot operate normally, causing casualties and serious property damage. In addition, the bearings are also easily damaged. Chemical corrosion or electrochemical corrosion, over time, cause the bearing to fail to operate normally