Lubricant additive with ultra-lubrication antifriction function

Abstract

The invention belongs to the fields of mechanical engineering technology, self-repairing materials and lubricant preparation technology and relates to a lubricant additive of a self-repairing material which has a self-repairing function and is applied for repairing worn metal surfaces in situ during the friction wearing process of metals. The lubricant additive consists of serpentine, quartzite powder and a surface activator; the surface activator is 0.005 percent of the weight of the serpentine and quartzite powder; the powder is added into the lubricant for obtaining lubricant comprising a compound additive. The lubricant additive forms a self-repairing film layer on the worn metal surface for leading the surface of a metal friction pair to be ultra-hard and ultra-smooth with extremely small friction coefficients for playing the roles of wearing resistance and friction reduction, greatly improving the contact condition of the friction pair as well as improving the service life of a machine part. Moreover, the lubricant additive is nontoxic, belongs to an environmental friendly material, has a simple preparation technique and a conveniently operated surface decoration technique and is suitable for the industry production and application in large scale.

Description

technical field [0001] The invention belongs to the fields of mechanical engineering technology, self-repairing materials and lubricating oil preparation technology, and relates to a self-repairing material lubricating oil additive which is applied to in-situ repairing worn metal surfaces in metal friction and wear process and has self-repairing function. Background technique [0002] At present, the main components of self-healing materials are complex ore powders based on hydroxymagnesium silicate-serpentine, a small amount of catalysts and additives, which are added to the carrier lubricant. Its characteristic is that it can complete the self-repair process of the worn part of the iron-based metal during operation without dismantling the mechanical device. By forming a cermet protective layer with excellent anti-friction performance, it avoids direct contact with the metal surface of the friction pair. The hardness and smoothness of the friction surface are improved, and ...

AI Technical Summary

Problems solved by technology

The average wear of cylinder liners of other locomotives without repair materials is 0.15mm, and the pass rate is less than 40%. Some locomotives have all cylinder liners scrapped during intermediate repairs.

Due to different preparation methods, aggregates of about 1-40 μm are obtained. After adding base oil, precipitation and separation are easy to occur, which affects the self-healing ability of self-healing materials

At the same time, the self-healing material can form a cermet layer with excellent anti-friction performance on the friction surface of iron-based metals, and for the friction and wear of iron-based materials with high alloying elements such as Cr and Ni content, surface plating of Cr, Ni and non-ferrous metals In the middle, it only plays a general lubricating role, but has no self-repairing effect

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